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AU1641501A - Additive mixture for increasing the fire stability of synthetic form bodies, synthetic form body and two-component system for its manufacturing - Google Patents

Additive mixture for increasing the fire stability of synthetic form bodies, synthetic form body and two-component system for its manufacturing Download PDF

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Publication number
AU1641501A
AU1641501A AU16415/01A AU1641501A AU1641501A AU 1641501 A AU1641501 A AU 1641501A AU 16415/01 A AU16415/01 A AU 16415/01A AU 1641501 A AU1641501 A AU 1641501A AU 1641501 A AU1641501 A AU 1641501A
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Prior art keywords
synthetic
additive mixture
phosphate
form body
synthetic form
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AU16415/01A
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AU779070B2 (en
Inventor
Franz Heimpel
Wolfgang Lieberth
Herbert Munzenberger
Gisela Tiefensee
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Hilti AG
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Hilti AG
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • C09K21/04—Inorganic materials containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/06—Organic materials
    • C09K21/12—Organic materials containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fireproofing Substances (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Insulating Materials (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

Additive mixture for increasing the dimensional stability of plastics moldings in a fire contains acid generator(s), compound(s) giving carbon and particulate metal(s). Independent claims are also included for: (a) plastics moldings containing 10-60, preferably 25-40 wt.% of the additive mixture, homogeneously distributed in the moldings; (b) a two-component system for the production of thermosetting or thermoplastic resin foam moldings of this type.

Description

-1-
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT
ORIGINAL
Name of Applicant/s: Actual Inventor/s: Address for Service: Hilti Aktiengesellschaft Herbert Munzenberger and Franz Heimpel and Wolfgang Lieberth and Gisela Tiefensee BALDWIN SHELSTON WATERS MARGARET STREET SYDNEY NSW 2000 'ADDITIVE MIXTURE FOR INCREASING THE FIRE STABILITY OF SYNTHETIC FORM BODIES, SYNTHETIC FORM BODY AND TWO- COMPONENT SYSTEM FOR ITS MANUFACTURING'
S
S Invention Title: The following statement is a full description of this invention, including the best method of performing it known to me/us:- File: 30258AUP00 Additive mixture for increasing the fire stability of synthetic form bodies, synthetic form body and twocomponent system for its manufacturing The present invention relates to an additive mixture for increasing the stability of shape of synthetic form bodies in case of a fire, synthetic form bodies.
containing this additive mixture and a two-component system for its manufacturing.
It is known that synthetic materials and in particular synthetic form bodies undergo a significant change in shape in case of a fire because they melt and thereby deform or are degraded by means of the temperature and flame effect. This is particularly problematic in the case of synthetic form bodies and in particular synthetic foam form bodies, which are used as means of fire protection to close off openings in walls, ceilings and floors, cable ducts, pipe ducts and the like, namely with 20 fire protection foams used on site and in openings to be closed off.
co go Although it is known that a number of additives can be used to increase the fire resistance time of such coo• synthetic form bodies such as flame inhibitors and flame protection means to improve the fire stability, ablation filling materials, which peel of in the case of fire by splitting off water and energy consumption, vitrifying or ceramising fillers such as borates, glass frits or sodium 30 silicate, resinifying or carbonating systems or also intumescent systems. This means systems that effect a large increase in volume of the form body in case of a fire, so that the opening to be protected against penetration of fire may withstand the increased temperatures and the flame effect for a longer period of time. Such intumescent materials are, for example, expanded graphite or intumescent systems based on acidifiers, carbon supplying compounds, gas formers and resin binders. These intumescent materials and systems encounter a large increase in volume in case of a fire through the heat effect, so that the closing-off is maintained for a longer period of time.
Fillers and additives, which are generally used for the stabilising of intumescence crusts such as borates, metal oxides, carbonates, silicates, phosphates and the like effect the consolidation of the ash crust through different mechanisms. Borates and phosphates, for example effect a vitrification and serve as binding means, on the other hand, they influence the depolymerisation of the synthetic matrix. Fillers such as carbonates, silicates and the like act as reinforcements for the intumescence ooooo crust. Metal oxides such as iron oxide or titan oxide •go• 20 react with phosphor by forming phosphates, which have a ceramising effect, while aluminium and magnesium hydroxides improve the fire behaviour of the binder by means of splitting off water.
eeoc In all previously known systems the synthetic matrix ooeoo S* degrades or melts under the effect of temperature and flames. The additives and admixtures also change state according to their mechanisms of action. Furthermore, a o oo generated intumescence crust is constantly degraded by burning, erosion, melting, disintegration and the like, so that the synthetic form body is more or less quickly used up depending on the layer thickness and density. In the case of fire, a change in the shape of the synthetic form body is always connected thereto, so that until now no synthetic form bodies are known, which maintain their original, geometrical form over longer periods of time under the effect of fire.
It is the object of the present invention to provide an additive mixture by means of which the form stability of synthetic form bodies is significantly improved in the case of fire, to provide synthetic form bodies of this type and to make available a two-component system for manufacturing such synthetic form bodies.
Surprisingly, it has been shown that if the synthetic matrix of the synthetic form body contains an additive mixture, which supplies at least one acidifier, at least one carbon supplying compound and at least one particleshaped metal, the stability of shape of the synthetic form body can be significantly improved, whereby it transforms into an organic, solid, rock-like, fireresistant mass in the case of fire without essential ••co 20 change of the geometrical form.
ooooo Subject of the invention is therefore the additive oo*mixture according to claim i. The dependent claims relate to preferred embodiments of this additive mixture, a 25 synthetic form body containing this additive mixture and o'ooo a two-component system for manufacturing this synthetic form body on site and also preferred embodiments of these invention subjects The invention thereby relates in particular to an additive mixture for increasing the stability of shape of synthetic form bodies in the case of fire, which is characterised by a content of at least one acidifier, at least one carbon supplying compound and at least one particle-shaped metal.
According to a preferred embodiment, the additive mixture contains 10 to 90% by weight, preferably 40 to 70% by weight of the acidifier, 5 to 45% by weight, preferably to 30% by weight of the carbon supplying compound and to 45% by weight, preferably 15 to 30% by weight of the particle-shaped metal.
Preferably, the additive mixture contains as acidifier a salt or an ester of an organic, non-volatile acid selected from sulphuric acid, phosphorous acid and boracic acid. Particularly preferred acidifiers are ammonium phosphate, ammonium poly-phosphate, diamine phosphate, phosphoric ester with monovalent or polyvalent alcohols, in particular polyhydroxy alcohol such as penta-erythrite, in particular trichlorethylene S• phosphate, tri(2-chlorisopropylene)-phosphate, triphenyl phosphate, tri(2-chlorethylene)-phosphate, pentaerythrite phosphate, phosphoric partial ester or -mixed ester with monovalent and/or polyvalent low-molecular alcohols, melamine phosphates, in particular monomelamine orthophosphate, di-melamine orthophosphate, dimelamine pyrophosphate, melamine poly-phosphate and/or boric acid salts, in particular melamine borate.
The additive mixture according to the invention contains as carbon supplying compound preferably a polyhydroxy compound such as, for example a carbohydrate such as sugar or starch, penta-erythrite, di-penta-erythrite, and/or a thermoplastic or duroplastic polymeric resin binder, such as a phenol resin, a urea resin, a polyurethane, polyvinyl chloride, poly(meth)acrylate, polyvinyl acetate, polyvinyl alcohol, a silicon resin and/or an unvulcanised rubber.
According to a preferred embodiment of the invention, the particle-shaped metal is selected from a group comprising aluminium, magnesium, iron and zinc and is preferably provided in form of a powder, laminas, scales, fibres, threads and/or whiskers. Preferably, the particle-shaped metal provided in form of a powder, laminas or scales has a particle size of 50 pm, preferably of 0.5 to 10 tm.
If the particle-shaped metal is provided in form of fibres, threads and/or whiskers, the components preferably have a thickness of 0.5 to 10 pm and a length of 10 to 50 Lm.
According to a further preferred embodiment, the additive *."*mixture contains at least one inorganic filler, in particular a metal oxide such as iron oxide, titan oxide, silica oxide, aluminium oxide, heavy spar, a borate, in oooo 20 particular zinc borate, a carbonate, preferably chalk, a silicate, preferably alkali silicate, kaolin and/or glass powder.
oooeo A further embodiment of the present invention relates to a synthetic form body with increased stability of shape "in the case of fire, which is characterised in that it is to 60% by weight, preferably 25 to 40% by weight of the above described additive mixture, relative to the weight of the synthetic form body, homogenously distributed in the synthetic mass. The synthetic mass is preferably of a conventional duroplastic or thermoplastic resin and conventional auxiliaries. The synthetic mass can be formed of a phenol resin, urea resin, unvulcanised rubber, polyurethane, polyolefine, polyvinyl chloride, poly(meth)acrylate, polyvinyl acetate, polyvinyl alcohol, a silicon resin, polybutene, polybutadiene and conventional auxiliaries.
synthetic mass can preferably additionally contain inorganic filler in form of inorganic foam, preferably foamed swellable clay, perlite and/or vermiculite, or in form of hollow globules made of a'silicate material or glass.
According to a preferred embodiment of the invention, the synthetic mass contains in addition to the thermoplastic resin and the additive mixture an intumescent material, such as in particular expanded graphite. on the other hand, it is also possible to add a gas former for an intumescent material to the synthetic mass such as chloride paraffin, melamine, a melamine compound, in :.:":particular melamine cyanuric acid, melamine phosphate, ooooe melamine poly-phosphate, tri(hydroxyethylene)cyanuric 20 acid, dicyandiamide and/or guanidine salt, in particular :':[["guanidine phosphate or guanidine sulphate. The gas former together with the acidifier and the carbon supplying :compound form an intumescent system, which shows increased form stability in the case of fire through the use of the particle-shaped metal according to the :invention.
It is possible, if required, to add one or several flame protection means to the synthetic mass of a synthetic 30 form body, such as halogenated flame protection means, metal hydroxides, in particular aluminium hydroxide or magnesium hydroxide, metal oxides such as titan dioxide, red phosphor and/or phosphor compounds, in particular trichlorethylene phosphate, tri(2-chlorisopropylene)phosphate, triphenyl phosphate and tri(2-chlorethylene)phosphate, and also antimony oxide as synergist if required.
The duroplastic or thermoplastic resin of the synthetic form body according to the invention can be provided in form of a dense mass or preferably in form of a foam.
Polyurethane foams are preferred, which are conventionally manufactured from a polyisocyanate, a polyhydroxy alcohol and water or a propellant on the basis of liquefied resin or if required, conventional catalysts, additives etc. It is particularly preferred to form the synthetic form body on the basis of such a polyurethane foam when being used on site, in particular for use as building foam in particularly fire protection foam for the foaming of openings in walls, floors, ceilings and for filling the remaining air gaps in pipe r and cable ducts through walls, floors or ceilings.
20 A further subject of the invention relates to a two- •component system for manufacturing this synthetic form body on site, which is characterised in that one packaging container of the two-component system contains at least one polyisocyanate and the other packaging container at least one polyhydroxy alcohol, one catalyst for the reaction of the polyhydroxy alcohol with the polyisocyanate, a propellant, an intumescence mixture consisting of ammonium poly-phosphate, melamine and penta-erythrite and 5 to 15% by weight of the above described additive mixture. During the application the components are either forced out of the packaging containers by the effect of a propellant contained in the packaging container or by applying mechanical forces, are mixed, and by forming the synthetic form body are foamed in the opening to be closed off and consolidated.
By means of this two-component system, it is possible in a simple manner to generate a fire protection closing-off on site with increased form stability in the case of fire.
The additive mixture according to the invention can be used anywhere where a high elasticity of the synthetic form body on the one hand, and a particularly high fire resistance on the other is required. By using the additive mixture according to the invention, for example flexible plates, cable coatings with maintained function also in the case of fire, protective shields for fuel hoses, foams for aeroplane seats, inserts for pipe clamps, glazing tees, pipe ducts (bellow expansion joint) but also permanently elastic coatings and sealants can be formed, which demonstrate a particularly advantageous S"form stability in the case of fire.
OOSS
sees The improvement of the form stability in the case of fire 0* S achieved according to the invention is achieved in that the additive mixture added to the organic synthetic mass forms an organic, ceramic-like material in the case of 555.
fire through the effect of high temperatures, which does 0660:. not change over long periods of time even with high 5555 00**"temperatures of up to 1500 0 C. In case of intumescent materials, the intumescent crust generated in the case of @See o55o .00. fire is permanently eroded by the fire and renews itself, oS S however has a significantly increased stability due to the additive mixture according to the invention.
The following examples serve the further description of the invention.
Example 1 Additive mixture The additive mixture according to the invention is prepared by mixing 30 parts by weight of ammonium polyphosphate, 10 parts by weight of di-penta-erythrite and 10 parts by weight of aluminium powder with a particle size of 5 Jim.
Example 2 Plate of elastic polyurethane Synthetic mass for the production of an elastic polyurethane form body.
The polyhydroxy alcohol component is prepared by mixing the following components: 100 parts by weight di-functional polyether polyhydroxy alcohol (OH-number about 28) 200 parts by weight tri-functional polyether polyhydroxy alcohol (OH-number about 20 1 part by weight of catalyst (DBTL, DABACO) 10 parts by weight of powdery molecular sieve (10 A) S(drying agent) 100 parts by weight of additive mixture according to example 1 As polyisocyanate component 30 GT 4,4'methylenedi(phenylisocyanate) with a NCO content of 31% is used.
The homogenous mixture made of the polyhydroxy alcohol component and the polyisocyanate component is prepared S. 30 and transforms the mixture to a plate, which after curing has a shore A hardness of about 50 and an elongation tear of 500%.
Example 3 Plate of silicon elastomer Components for the silicon elastomer Component A 200 parts by weight a, (-di-hydroxy-poly-di-methylene siloxane parts by weight SiH-functional silane (cross-linking agent) 100 parts by weight additive mixture according to example 1 Component B 1 part by weight of an organic platinum complex as catalyst 100 parts by weight a, w-di-hydroxy-poly-di-methylene :,siloxane 20 Component A is mixed with component B and forms the synthetic mass to a plate. After a reaction time of about 10 minutes a silicon elastomer plate is achieved with a shore A hardness of about 30 and an elongation tear of S" 300%.
Example 4 Plasto-elastic acrylate sealant For the production of a plasto-elastic acrylate sealant following components are mixed: 200 parts by weight of a styrene/butyl acrylate dispersion (high solids content 200 parts by weight calcium carbonate (Omya 5 GU) 100 parts by weight additive mixture according to example 1 This plasto-elastic acrylate sealant results after application to a protective base and the curing in a coating layer with a shore A hardness of about 50 and an elongation tear of about 100%.
Example 5 Polyurethane soft foam Polyhydroxy alcohol component By mixing the following components a polyhydroxy alcohol component is formed: 100 parts by weight di-functional polyether polyhydroxy alcohol (OH-number about 28) 200 parts by weight tri-functional polyether polyhydroxy alcohol (OH-number about 1 part by weight catalyst (DBTL, DABACO) 3 parts by weight water 1 part by weight foam stabiliser S* 100 parts by weight additive mixture according to example 1 As polyisocyanate component 30 GT 4,4'methylene- 25 di(phenylisocyanate) with a NCO content of 31% is used.
After the homogenous mixing of the polyhydroxy alcohol component with the polyisocyanate component polyurethane soft foam is formed.
Example 6 Stability properties in the case of fire If the products of examples 2 to 5 are exposed to a Bunsen burner flame with a temperature of 1200 0 C, in all cases a rock-like mass with the dimensions of the original products is generated. Even after exposure to flames for several hours, these products do not alter their dimensions any further.
If the products are slowly heated in an oven to 1200°C, they also transform to rock-like masses without altering their dimensions.

Claims (30)

1. Additive mixture for increasing the stability of shape of synthetic form bodies in the case of fire characterised by a content of at least one acidifier, at least one carbon supplying compound and at least one particle-shaped metal.
2. Additive mixture according to claim 1, characterised in that it contains 10 to 90% by weight of the acidifier, to 45% by weight of the carbon supplying compound and to 45% by weight of the particle-shaped metal.
3. Additive mixture according to claim 2, characterised in that it contains 40 to 70% by weight of the acidifier, to 30% by weight of the carbon supplying compound and 15 to 30% by weight of the particle-shaped metal.
4. Additive mixture according to at least one of the 20 claims 1 to 3, characterised in that it contains as acidifier a salt or an ester of an organic, non- volatile acid selected from sulphuric acid, phosphorous acid and boracic acid. 25
5. Additive mixture according to claim 4, characterised in that it contains as acidifier ammonium phosphate, ammonium poly-phosphate, a diamine phosphate, a phosphoric ester with monovalent or polyvalent alcohols, in particular polyhydroxy alcohol such as 30 penta-erythrite, in particular trichlorethylene phosphate, tri( 2 -chlorisopropylene)-phosphate, triphenyl phosphate, tri(2-chlorethylene)-phosphate, penta-erythrite phosphate, phosphoric partial ester or -mixed ester with monovalent and/or polyvalent low- molecular alcohols, melamine phosphates, in particular mono-melamine orthophosphate, di-melamine orthophosphate, di-melamine pyrophosphate, melamine poly-phosphate and/or boric acid salts, in particular melamine borate.
6. Additive mixture according to at least one of the preceding claims, characterised in that it contains as carbon supplying compound a polyhydroxy compound and/or a thermoplastic or duroplastic resin binder.
7. Additive mixture according to claim 6, characterised in that it contains as carbon supplying compound a carbohydrate such as sugar or starch, penta-erythrite, di-penta-erythrite, a phenol resin, a urea resin, a polyurethane, polyvinyl chloride, poly(meth)acrylate, polyvinyl acetate, polyvinyl alcohol, a silicon resin and/or an unvulcanised rubber. 20
8. Additive mixture according to at least one of the preceding claims, characterised in that the particle- S• shaped metal is selected from a group comprising aluminium, magnesium, iron and zinc.
9. Additive mixture according to at least one of the preceding claims, characterised in that the particle- shaped metal is provided in form of a powder, laminas, scales, fibres, threads and/or whiskers. 30
10. Additive mixture according to claim 9, characterised in that the particle-shaped metal in form of a powder, laminas, scales, fibres, threads and/or whiskers has a particle size of 50 pm.
11. Additive mixture according to claim characterised in that the particle-shaped metal has a particle size of 0.5 to 10 pun.
12. Additive mixture according to claim 9, characterised in that the fibres, threads and/or whiskers of the particle-shaped metal have a thickness of 0.5 to 10 ptm and a length of 10 to 50 pn.
13. Additive mixture according to at least one of the preceding claims, characterised in that it also contains at least one inorganic filler.
14. Additive mixture according to claim 13, characterised in that it contains as inorganic filler a metal oxide, in particular iron oxide, titan oxide, silica oxide, aluminium oxide, heavy spar, a borate, in particular zinc borate, a carbonate, preferably chalk, a silicate, preferably alkali silicate, talcum, mica or 20 wollastonite, kaolin and/or glass powder. S"
15. Synthetic form body with increased form stability in the case of fire, characterised in that it contains oeeee to 60% by weight, preferably 25 to 40% by weight of the oeee additive mixture according to at least one of the preceding claims, relative to the weight of the synthetic form body, homogenously distributed in the synthetic mass. 30
16. Synthetic form body according to claim characterised in that the synthetic mass is formed of a conventional duroplastic or thermoplastic resin and conventional auxiliaries.
17. Synthetic form body according to claim 16, characterised in that the synthetic mass can be formed of a phenol resin, urea resin, unvulcanised rubber, polyurethane, polyolefine, polyvinyl chloride, poly(meth)acrylate, polyvinyl acetate, polyvinyl alcohol, a silicon resin, poly-butene, poly-butadiene and conventional auxiliaries.
18. Synthetic form body according to claims 15 to 17, characterised in that the synthetic mass comprises an inorganic filler in form of inorganic foam, preferably foamed swellable clay, perlite and/or vermiculite, or in form of hollow globules made of a silicate material or glass.
19. Synthetic form body according to at least one of the claims 15 to 18, characterised in that the synthetic mass contains in addition to the thermoplastic resin and the additive mixture an intumescent material.
20. Synthetic form body according to claim 19, characterised in that the synthetic mass contains expanded graphite as intumescent material. o 25
21. Synthetic form body according to at least one of the claims 15 to 18, characterised in that the synthetic mass contains in addition to the thermoplastic resin and the additive mixture a gas former for an intumescent material.
22. Synthetic form body according to claim 21, characterised in that it contains as gas former chloride paraffin, melamine, a melamine compound, in particular melamine cyanuric acid, melamine phosphate, melamine poly-phosphate, tri(hydroxyethylene)cyanuric acid, dicyandiamide and/or guanidine salt, in particular guanidine phosphate or guanidine sulphate.
23. Synthetic form body according to at least one of the preceding claims 15 to 22, characterised in that the synthetic mass also contains one or several flame protection means.
24. Synthetic form body according to claim 23, characterised in that the synthetic mass contains as additional flame protecting means a halogenated flame protection means, ammonium phosphate, a metal hydroxide, in particular aluminium hydroxide or magnesium hydroxide, metal oxides such as titan dioxide, red phosphor and/or phosphor compounds, in particular a halogenated phosphoric acid ester such as trichlorethylene phosphate, tri(2-chlorisopropylene)- phosphate, triphenyl phosphate and tri(2- 20 chlorethylene)-phosphate, and also antimony oxide as synergist if required.
Synthetic form body according to at least one of the preceding claims 16 to 24, characterised in that the duroplastic or thermoplastic resin is provided in form of a foam.
26. Synthetic form body according to claim characterised in that it comprises as resin a 30 polyurethane foam formed of a polyisocyanate, a polyhydroxy alcohol and water or a propellant on the basis of liquefied gas.
27. Synthetic form body according to claim 26, characterised in that the polyurethane foam is formed during the application on site.
28. Two-component system for manufacturing the synthetic form body on site according to the claims 25 to 27, characterised in that one packaging container contains at least a polyisocyanate and the other packaging container at least a polyhydroxy alcohol, a catalyst for the reaction of the polyhydroxy alcohol with the polyisocyanate, a propellant, an intumescence mixture consisting of ammonium poly-phosphate, melamine and penta-erythrite and 5 to 15% by weight of the additive mixture according to at least one of the claims 1 to 12, said components are, during the application, forced out of the packaging containers by the effect of a propellant or by applying mechanical forces, are mixed, and by forming the synthetic form body are foamed in the opening to be closed off and consolidated.
29. An additive mixture for increasing the stability of 0% shape of synthetic form bodies in the case of fire substantially as herein described with reference to any one of the embodiments of the invention illustrated in 444*** 25 the examples.
30. A synthetic form body with increased form stability in the case of fire substantially as herein described with reference to any one of the embodiments of the 30 invention illustrated in the examples. DATED this 24th Day of January, 2001 HILTI AKTIENGESELLSCHAFT Attorney: KEN BOLTON Registered Patent Attorney of The Institute of Patent and Trade Mark Attorneys ol Australia of BALDWIN SHELSTON WATERS
AU16415/01A 2000-02-22 2001-01-24 Additive mixture for increasing the fire stability of synthetic form bodies, synthetic form body and two-component system for its manufacturing Ceased AU779070B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10007977A DE10007977B4 (en) 2000-02-22 2000-02-22 Additive mixture to increase the fire resistance of plastic moldings, plastic moldings and a two-component system for their manufacture
DE10007977 2000-02-22

Publications (2)

Publication Number Publication Date
AU1641501A true AU1641501A (en) 2001-08-23
AU779070B2 AU779070B2 (en) 2005-01-06

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AU779070B2 (en) 2005-01-06
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JP2001270998A (en) 2001-10-02
DE10007977B4 (en) 2004-07-29
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EP1127937A1 (en) 2001-08-29
ATE286105T1 (en) 2005-01-15

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