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GB2144141A - Synthetic resin materials containing micro-sphere filler - Google Patents

Synthetic resin materials containing micro-sphere filler Download PDF

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Publication number
GB2144141A
GB2144141A GB08419377A GB8419377A GB2144141A GB 2144141 A GB2144141 A GB 2144141A GB 08419377 A GB08419377 A GB 08419377A GB 8419377 A GB8419377 A GB 8419377A GB 2144141 A GB2144141 A GB 2144141A
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GB
United Kingdom
Prior art keywords
synthetic material
material according
filler
resin
synthetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08419377A
Other versions
GB2144141B (en
GB8419377D0 (en
Inventor
Alexander Mcdowall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8419377D0 publication Critical patent/GB8419377D0/en
Publication of GB2144141A publication Critical patent/GB2144141A/en
Application granted granted Critical
Publication of GB2144141B publication Critical patent/GB2144141B/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/10Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/22Expanded, porous or hollow particles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Synthetic material comprises a curable resin e.g. polyester or epoxy type and a filler, which material provides, on curing, a rigid product which can be moulded to form a variety of articles, notably for use in the building trade. The filler comprises microspheres which contribute to thermal and mechanical properties of the material in conjunction with the resin. Pigments, reinforcement and other additives can be included.

Description

SPECIFICATION Synthetic material This invention relates to synthetic materials and to articles made therefrom.
Conventional materials such as concrete and timber have long been used in the building trade, and have found a wide range of applications. For example concrete slipsills at windows provide a weatherproof surface for allowing rainwater to run off the building. It has been found, however, that rainwater causes acid to leach out of the concrete, and this acid attacks the bottom portions of timber window frames mounted on the concrete slipsills.
A new synthetic material has now been discovered in the terms of this invention which can provide building materials such as slipsills which are impervious and inert to rainwater and which can therefore be used as a substitute for concrete in such applications. Embodiments of the material also have use in many other areas, for example as a substitute for timber, plasterboard and other materials, and as protective coatings for wood, metal and the like.
According to the present invention there is provided synthetic material comprising a synthetic resin which on setting produces a rigid material, and a micro-sphere filler.
The filler is preferably Fillite or similar type, which has surprisingly been found to combine with the resin to produce a rigid and very tough synthetic material. The filler may be particulate in its raw state, and preferably contains silicate.
Fillite' '-type fillers contain lightweight hollow microspheres which assist in maintaining low weight, excellent thermal and electrical properties and good thermal insulation.
Fillite itself contains alumina, 27-33%, silica 55-65% and iron 4% maximum, as well as nitrogen 30% and carbon dioxide 70%. Its melting temperature is 1200-1 350 C, it has a thermal conductivity of 0.09 Wm-1 K-' and a thermal expansion coefficient of 8 X 10-6 (or).
The microspheres are generally larger than 5 microns.
Fillite's physical properties are as follows: density range 0.3 - 0.82 bulk density 0.18 - 0.45 packing factor 60 - 62% hardness Moh's scale 5 average wall thickness 1/10 sphere diameter permutivity 2.2 at 50 Hz loss tangent 0.024 at 50 Hz The resin is preferably a polyester, epoxy or lightweight concrete resin, most preferably of the type which is conventionally used in making glass-reinforced plastics materials. A viscosity of around 600 centipoise produces good results.
In preparing the material of the invention a catalyst is preferably included in the mix, generally in an amount of loz per 31b mix, to assist in curing of the resin. Most preferably the catalyst is methyl ethyl ketone peroxide (MEKP). An accelerator may also be included, preferably in an amount of 1/2 oz per 31b mix.
The resin and filler are preferably present in the mix in a ratio of 65-75 : 35-25. The higher the content of filler the greater the viscosity of the mix, so the relative proportions can be selected in accordance with the use and application of the material.
The material mix may be of suitable viscosity for coating or moulding articles such as slipsills, ceiling tiles, coping, oversills, fencing, lintels, partitioning and steps, or for spraying or painting the mix as a protective coating on, for example, wood or metal.
Waterproofing material can also be included in the material of the invention, and it has been found that Gellcote is especially effective, for example in resisting attack by rainwater.
For increased strength fibrous material can be incorporated, for example asbestos or glass fibres. This provides reinforcement for the material of the invention in situations where the material is under stress. Glass powder, preferably in a ratio of around 50:50 with the filler can also be incorporated.
Steel or other metal mesh wire may also be included for greater strength and reinforcement.
Further components, for example colourants, can be used in the material, and if colourants are included at the stage of forming the material a permanent and durable colour can be imparted throughout the thickness of the entire material; thus in the event of the material having its surface chipped the colour remains constant at the damaged portion.
An embodiment of this invention will now be described by way of illustration in the following Example.
EXAMPLE The following components were mixed together in the proportions stated: tillite (ilicate filler material) 1 lb.
Polyester Resin (conventional resin in GRP) 6 oz.
Gellcote (waterproof material) 6 oz.
Catalyst (MEKP) 0.5 - 1 oz.
Cclourant as required Fibreglass needles } Steel mesh wire }(reinforcement) as required When the components were thoroughly mixed together, 0.5-1 oz. of a conventional accelerator for curing the resin was added, and the resultant mass poured into a mould to produce a profile of a slipsill of required length and extent. The mass was then allowed to cure in the mould, and the result was a slipsill which was hard, rigid, tough, wear-resistant and inert to attack by water.
The slipsill was then installed below a wooden window frame which was not then subject to rotting through acid leaching from the slipsill.
The form of the mould is entirely optional, so that a very wide range of articles can be produced from the material of the invention. For example, in the building trade a combined slipsill and window frame can be produced without using wood at all, the frame also being moulded from the material of this invention. The material also finds use in many areas other than the building trade.
When subject to a spread of flame test to BS476:Part 7:1971 on rigid insulation boards the material was designated Class 0 and exhibited nil travel of the flame.
A mechanical evaluation of panels of the material gave the results shown in the accompanying Table.
The material is non-porous, impervious and inert to rainwater, lighter than cement but equally strong, is not susceptible to acid leaching, has minimal thermal expansion and contraction, can be machined, cut and drilled, is sound-proof and is easily cleaned.
Alteration of the content of Fillite and resin provides a change in the viscosity of the mix, and the proportions can thus be adjusted as required, for example to provide a mix which can be painted onto an existing structure. Once cured the material provides a hard, water-impervious and acid-resistant coat for the structure.
Modifications and improvements may be made without departing from the scope of the invention.
A further example is as follows: EXAMPLE 2 The following components were mixed together in the proportions stated: Fillite 1 lb Polyester Resin 6 oz Mekp Catalyst 8 cc per 1 Ib mix Pigment 1 oz per 1 Ib mix The components were thoroughly mixed together and then treated in the same manner as those in the foregoing example to produce a slipsill.
The relative proportions of resin:filler in the material of this invention are preferably from 65-75 : 35-25.
CONDITION (1) CONDITION (2) CONDITION (3) ROOM TEMPERATURE ROOM TEMPERATURE ROOM TEMPERATURE CURE ONLY CURE PLUS 2 HOURS CURE PLUS 2 HOURS # # 80 C POSTCURE 80 C PLUS 24 HOURS IMMERSION IN WATER PLUS 24 HOURS AT ROOM TEMPERATURE Specific Gravity g/cc 1.034 1.013 0.999 Flexural Strength Mpa 15.47 16.07 17.59 Flexural Modulus GPa 1.79 1.92 2.08

Claims (14)

1. Synthetic material comprising a synthetic resin which on setting produces a rigid material, and a micro-sphere filler.
2. Synthetic material according to Claim 1, wherein the resin is selected from polyester, epoxy and lightweight concrete resins.
3. Synthetic material according to Claim 1 or 2, wherein the filler is particulate.
4. Synthetic material according to Claim 1, 2 or 3, wherein the filler contains silicate.
5. Synthetic material according to any one of the preceding Claims, wherein the filler comprises gas-filled microspheres.
6. Synthetic material according to any one of the preceding Claims, wherein the filler wall material contains alumina and silica.
7. Synthetic material according to any one of the preceding Claims, wherein the microspheres of the filler are larger than 5mm.
8. Synthetic material according to any one of the preceding Claims, wherein the filler has a bulk density within the range from 0.18 to 0.45.
6. Synthetic material according to any one of the preceding Claims, wherein the ratio of resin:filler is within the range from 25:75 to 35:65.
10. Synthetic material according to any one of the preceding Claims, containing also an accelerator.
11. Synthetic material according to any one of the preceding Claims, containing also a catalyst for curing of the resin.
1 2. Synthetic material according to Claim 11, wherein the catalyst comprises methyl ethyl ketone peroxide.
1 3. Synthetic material substantially as hereinbefore described in the Example.
14. A moulded product containing the synthetic material according to any one of the preceding Claims.
1 5. A slipsill manufactured from the synthetic material according to any one of the preceding Claims.
GB08419377A 1983-07-30 1984-07-30 Synthetic resin materials containing micro-sphere filler Expired GB2144141B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838320616A GB8320616D0 (en) 1983-07-30 1983-07-30 Synthetic material

Publications (3)

Publication Number Publication Date
GB8419377D0 GB8419377D0 (en) 1984-09-05
GB2144141A true GB2144141A (en) 1985-02-27
GB2144141B GB2144141B (en) 1987-08-26

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB838320616A Pending GB8320616D0 (en) 1983-07-30 1983-07-30 Synthetic material
GB08419377A Expired GB2144141B (en) 1983-07-30 1984-07-30 Synthetic resin materials containing micro-sphere filler

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838320616A Pending GB8320616D0 (en) 1983-07-30 1983-07-30 Synthetic material

Country Status (1)

Country Link
GB (2) GB8320616D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689358A (en) * 1985-08-06 1987-08-25 The Brooklyn Union Gas Company Insulating polymer concrete

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033237A (en) * 1963-10-17 1966-06-22 Shell Int Research Synthetic resin based terrazzo surfacing compositions
GB1271298A (en) * 1968-11-13 1972-04-19 Ciba Geigy Carveable epoxy resin compositions
GB1272973A (en) * 1968-05-22 1972-05-03 Rech Des Nouveaux Agglomerants Agglomerating composition for preparing materials intended particularly for building purposes
GB1464243A (en) * 1974-07-31 1977-02-09 Ici Ltd Composite materials
US4087401A (en) * 1976-07-12 1978-05-02 Stayner Vance A Silica flour containing reinforced resin compositions and articles formed thereof
GB2028344A (en) * 1978-08-17 1980-03-05 Toray Silicone Co Heat-curable filled moulding composition
GB1579208A (en) * 1977-03-10 1980-11-12 Hinterwaldner Rudolf One component storage stable composition
GB2063269A (en) * 1979-11-23 1981-06-03 British Leyland Cars Ltd Adhesives
GB2115799A (en) * 1981-12-23 1983-09-14 Tokuyama Soda Kk Amorphous, spherical particles of an inorganic compound for use in dentistry
EP0097225A1 (en) * 1982-06-22 1984-01-04 International Business Machines Corporation Radiation sensitive adhesive

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033237A (en) * 1963-10-17 1966-06-22 Shell Int Research Synthetic resin based terrazzo surfacing compositions
GB1272973A (en) * 1968-05-22 1972-05-03 Rech Des Nouveaux Agglomerants Agglomerating composition for preparing materials intended particularly for building purposes
GB1271298A (en) * 1968-11-13 1972-04-19 Ciba Geigy Carveable epoxy resin compositions
GB1464243A (en) * 1974-07-31 1977-02-09 Ici Ltd Composite materials
US4087401A (en) * 1976-07-12 1978-05-02 Stayner Vance A Silica flour containing reinforced resin compositions and articles formed thereof
GB1579208A (en) * 1977-03-10 1980-11-12 Hinterwaldner Rudolf One component storage stable composition
GB2028344A (en) * 1978-08-17 1980-03-05 Toray Silicone Co Heat-curable filled moulding composition
GB2063269A (en) * 1979-11-23 1981-06-03 British Leyland Cars Ltd Adhesives
GB2115799A (en) * 1981-12-23 1983-09-14 Tokuyama Soda Kk Amorphous, spherical particles of an inorganic compound for use in dentistry
EP0097225A1 (en) * 1982-06-22 1984-01-04 International Business Machines Corporation Radiation sensitive adhesive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689358A (en) * 1985-08-06 1987-08-25 The Brooklyn Union Gas Company Insulating polymer concrete

Also Published As

Publication number Publication date
GB2144141B (en) 1987-08-26
GB8320616D0 (en) 1983-09-01
GB8419377D0 (en) 1984-09-05

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PCNP Patent ceased through non-payment of renewal fee