GB2121056A - Intumescent coating compositions - Google Patents
Intumescent coating compositions Download PDFInfo
- Publication number
- GB2121056A GB2121056A GB08310699A GB8310699A GB2121056A GB 2121056 A GB2121056 A GB 2121056A GB 08310699 A GB08310699 A GB 08310699A GB 8310699 A GB8310699 A GB 8310699A GB 2121056 A GB2121056 A GB 2121056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- composition according
- weight
- hydroxy compound
- composition
- aromatic
- 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
Links
- 239000008199 coating composition Substances 0.000 title claims description 3
- 239000000203 mixture Substances 0.000 claims abstract description 36
- -1 aromatic hydroxy compound Chemical class 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 8
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 6
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229960004889 salicylic acid Drugs 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 235000013312 flour Nutrition 0.000 claims description 4
- 150000002989 phenols Chemical class 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- IUTYMBRQELGIRS-UHFFFAOYSA-N boric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OB(O)O.NC1=NC(N)=NC(N)=N1 IUTYMBRQELGIRS-UHFFFAOYSA-N 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- ZBCATMYQYDCTIZ-UHFFFAOYSA-N 4-methylcatechol Chemical compound CC1=CC=C(O)C(O)=C1 ZBCATMYQYDCTIZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000002241 glass-ceramic Substances 0.000 claims description 2
- 239000004005 microsphere Substances 0.000 claims description 2
- 150000003739 xylenols Chemical class 0.000 claims description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims 2
- 125000003118 aryl group Chemical group 0.000 claims 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 229950011260 betanaphthol Drugs 0.000 claims 1
- 229930003836 cresol Natural products 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 abstract description 3
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 abstract 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 150000005206 1,2-dihydroxybenzenes Chemical class 0.000 description 1
- 229920003319 Araldite® Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- 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
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
A composition which intumesces to form a heat insulating char when exposed to fire and useful for protecting structural steelwork, comprises (a) a resin film forming binder, such as an epoxy resin, (b) a spumific agent such as melamine phosphate in a weight ratio of less than 7.5:1, (c) up to 20% by weight of an aromatic hydroxy compound such as catechol or salicylic acid, and optionally (d) a filler such as ceramic fibres consisting of more than 50% by weight of aluminium hydroxide.
Description
SPECIFICATION
Improvements in or relating to fire retardent compositions
The present invention relates to fire retardent compositions which intumesce to form heat insulating chars when exposed to fire.
Such compositions in the form of paint, may be applied to the structural members in buildings or to structural steel frameworks and serve to lessen the tendency of such structures to collapse under the influence of high temperatures caused by fires.
Fire retardent compositions which intumesce are well known and are, for example, described in British patent specifications 1,095857 1,373,908 and 1,570,604.
We have now found that the effectiveness of intumescent compositions can be significantly improved by the addition of the relatively small amounts of aromatic hydroxy compounds.
Accordingly, therefore, the present invention provides an intumescent coating composition comprising a film-forming binder and a spumific agent preferably in weight ratio of less than 7.5 to 1 together with a small amount, preferably less than 20% by weight, of an aromatic hydroxy compound.
An intumescent composition is a composition which when subjected to high temperatures, e.g. in excess of 250"C swells to form a char that may be up to 1000 times its original thickness.
In the composition of the present invention the film forming binder is preferably an epoxy resin and the preferred spumific agent is melamine phosphate.
Especially suitable epoxy resins are diglycidylethers containing the grouping:
"n" is preferably in the range of O to 1.0 at which level the resin is a low viscosity liquid at room temperature (about 0.5 to 1.-poise at 25"C). Intumescent compositions produced from such resins can be readily applied by spraying. At higher "n" values the viscosity increases and the compositions may have to be applied by trowelling. The addition of heat vaporisable inert liquid may be employed to reduce the viscosity of such resins.
Suitable curing agents for curing diglycidylether resins include carboxylic acid anhydrides, dibasic organic acids, lewis acids, lewis bases, aliphatic primary amines, aliphatic secondary amines, aromatic amines and amino-polyamines, the latter being especially useful. The weight ratio of curing agent to resin is preferably in the ratio 7 to 3 although ratios of up to 7 to 6 may be employed
If desired the melamine phosphate may be replaced by the equivalent weight of melamine borate. Preferably not more than 20% of weight of the melamine salt is melamine borate.
Suitable aromatic hydroxy compounds include phenol, substituted phenols such as the cresols, xylenols or salicylic acid; dihydroxy compounds such as the catechols and hydroxy aromatic polynuclear compounds for, example B-naphthol, may also be employed.
To improve this structural strength of intumescent compounds it has been proposed to add small amounts of inorganic fibres. Especially effective are glass fibres and ceramic fibres having a silica content of less than 50% by weight and preferably having an aluminium oxide content of greater than 50% by weight, said fibres are preferably present in the range of 1 to 15% by weight.
Other filler compounds such as glass microspheres wood flour or powdered silica, may also be added if required, but it is preferable that the total content by weight of filler plus inorganic fibres (where present) does not exceed 15% by weight of the total components of the composition.
The following examples illustrate intumescent compositions falling within the scope of the present invention.
In the examples the epoxy resin is that sold as Araldite (Registered Trade Mark) MY750 (CIBA
Limited of Duxford Cambridgeshire) and has a "n" value in the range 0.1 to 0.2; the inorganic fibres are ceramic fibres, sold as Fiberfrax (Registered Trade Mark) chopped fibres (sold by the
Carborundum Company of Rainham St. Helens, Lancashire) having a mean length of 0.3mm and a mean diameter of 0.002mm. The curing agent for the epoxy resin is Versamid (Registered
Trade Mark) 125, an amino polyamine supplied by Cray Valley Products Limited, London, and the dibutyl phthalate is supplied by Albright and Wilson Limited, Phosphates Division, Oldbury,
Warley, West Midlands. The wood flour is the 300 mesh grade supplied by Wood Treatment Limited of Bosley, Macclesfield, Cheshire.The epoxy resin dibutyl phthalate, melamine phosphate, wood flour and ceramic fibres were stirred together to effect mixing of the components, to which mixture was added the required amount of aromatic hydroxy compound, the curing agent and the mixture again throughly stirred. The percentage composition of the components are given in table 1 below.
Samples of examples 1 and 2 together with samples A s B of control compositions (same weights of components excluding aromatic hydroxy component) were coated onto 30cm square 2mm thick mild steel sheets. The coated side of the face of the sheets was heated by means of a 2 inch diameter Barter Rosette" blow torch Ex Barter 8 Sons Limited, Eleys Estate, London (using an air flow rate of 400 cu ft/hour and a natural gas flow of 40 cu ft/hour giving a flame temperature of 1150 C. Each coated sheet was held vertically and the flame directed normally onto the centre of the sample from a distance of 5 inches. The temperatures on the uncoated face were measured at the centre of each sample employing a quick response insulated thermocouple and the average of two readings taken.
The results of the tests are shown in Table 2 below:
TABLE 1
COMPOSITION PARTS BY WEIGHT
EXAMPLE EPOXY Curing Melamine Fiberfrax Dibuty Wood Ar-Oh
RESIN Agent Phosphate
V125 1 29 15 18 3.25 2 0.25 6.11 2 29 15 18 3.25 2 0.25 6.82
Ar-Oh = aromatic hydroxy compound
(1) Salicylic acid
(2) 4 Methylcatechol fraction (Ex Coalite Oil and Chemicals Limited).
TABLE 2
EXAMPLE 1 2 A B
Coating weight 0.28 0.27 0.25 0.29 g/mm2
Coating thick- 3.2 3.5 3.3 3.5 ness mm C Initial 16 23 23 16 5 mins. 187 193 221 212 10 mins. 228 227 268 259 15 mins. 247 255 290 275 20 mins 254 267 304 284 30 mins. 263 275 329 298 40 mins. 265 276 338 306 50 mins. 267 281 343 315 60 mins. 273 286 349 333
Time taken to reach 300 C mins. 60 60 18 32
Compositions of the present invention are especially suitable for use as fire retardent coatings on structural steel work, e.g. in the oil industry, on structural and other members in buildings and as coatings on road tankers carrying inflammable liquids, e.g. petrol tankers.
Claims (16)
1. An intumescent coating composition comprising a film-forming binder and a spumific agent in a weight ratio of less than 7.5:t wherein there is included, as an additive, an aromatic hydroxy compound.
2. A composition according to claim 1 wherein the aromatic hydroxy compound forms less than 2Q% by weight of the total composition.
3. A composition according to claim 1 or claim 2 wherein the aromatic hydroxy compound is a phenol or a substituted phenol.
4. A composition according to claim 3 wherein the substituted phenol is a cresol or xylenol.
5. A composition according to claim 3 wherein the substituted phenol is salicylic acid.
6. A composition according to claim 3 wherein the phenol is an aromatic di-hydroxy compound or a substituted di-hydroxy compound.
7. A composition according to claim 6 wherein the aromatic di-hydroxy compound is 4methyl catechol.
8. A composition according to claim 1 or claim 2 wherein the aromatic hydroxy compound is a hydroxy polynuclear compound.
9. A composition according to claim 8 wherein the aromatic hydroxy polynuclear compound is betanaphthol.
10. A composition according to any one of the preceding claims wherein the film forming binder is an epoxy resin and the spumific agent is melamine phosphate.
11. A composition according to claim 10 wherein the epoxy resin is a diglycidylether containing the grouping:
where "n" is in the range 0 to 1.
1 2. A composition according to claim 10 or claim 11 wherein the melamine phosphate contains up to 20% by weight of melamine borate.
1 3. A composition according to any one of the preceding claims wherein it includes an inert filler.
14. A composition according to claim 1 2 wherein the inert filler comprises glass fibres, or ceramic fibre having a silica content of less than 50% by weight and aluminium oxide content of greater than 50% by weight, said fibres being present in the range 1 to 15% by weight of the composition.
1 5. A composition according to claim 1 3 wherein the filler comprises glass microspheres, wood flour or powdered silica.
16. A composition according to claim 1 and substantially as described herein with reference to examples 1 and 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8211766 | 1982-04-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8310699D0 GB8310699D0 (en) | 1983-05-25 |
| GB2121056A true GB2121056A (en) | 1983-12-14 |
| GB2121056B GB2121056B (en) | 1985-10-23 |
Family
ID=10529890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08310699A Expired GB2121056B (en) | 1982-04-23 | 1983-04-20 | Intumescent coating compositions |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2121056B (en) |
| NL (1) | NL8301407A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142074A3 (en) * | 1983-10-25 | 1987-04-01 | Ppg Industries, Inc. | Fire protective intumescent mastic composition |
| US4725457A (en) * | 1986-08-07 | 1988-02-16 | Ppg Industries, Inc. | Resinous compositions and their formulation into intumescent fire protective compositions |
| GB2200915A (en) * | 1987-02-12 | 1988-08-17 | Bayern Chemie Gmbh Flugchemie | An insulating composition for producing an insulating layer on a rocket solid propellant charge |
| US4808476A (en) * | 1987-06-19 | 1989-02-28 | Ppg Industries, Inc. | Method for protecting heat sensitive substrates from fire and excessive heat and resulting article |
| US5091608A (en) * | 1988-07-27 | 1992-02-25 | Minnesota Mining And Manufacturing Company | Flame retardant splicing system |
| WO1998012270A1 (en) * | 1996-09-23 | 1998-03-26 | Textron Systems Corporation | Low density, light weight intumescent coating |
| WO2000052104A1 (en) * | 1999-03-04 | 2000-09-08 | Clariant Gmbh | Fire protection coating |
| US6547992B1 (en) | 1999-01-30 | 2003-04-15 | Clariant Gmbh | Flame retardant combination for thermoplastic polymers l |
| WO2012101042A1 (en) * | 2011-01-24 | 2012-08-02 | Akzo Nobel Coatings International B.V. | High heat resistant composition |
| EP4335906A1 (en) | 2022-09-09 | 2024-03-13 | Hilti Aktiengesellschaft | Epoxy-based intumescent composition with improved fire protection properties and use thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694647A (en) * | 1950-02-28 | 1953-07-22 | Gunnar Valentin Thornberg | Fireproofing lacquer |
| GB909368A (en) * | 1960-03-14 | 1962-10-31 | Us Rubber Co | Improving the combustion resistance of neoprene foams and suitable resinous compositions therefor |
| GB1319620A (en) * | 1970-08-13 | 1973-06-06 | Nasa | Intumescent paint comprising a nitrosubstituted aromatic amine sulphonate |
| GB1373908A (en) * | 1971-11-16 | 1974-11-13 | Nat Res Dev | Fire-retardant compositions |
-
1983
- 1983-04-20 GB GB08310699A patent/GB2121056B/en not_active Expired
- 1983-04-21 NL NL8301407A patent/NL8301407A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694647A (en) * | 1950-02-28 | 1953-07-22 | Gunnar Valentin Thornberg | Fireproofing lacquer |
| GB909368A (en) * | 1960-03-14 | 1962-10-31 | Us Rubber Co | Improving the combustion resistance of neoprene foams and suitable resinous compositions therefor |
| GB1319620A (en) * | 1970-08-13 | 1973-06-06 | Nasa | Intumescent paint comprising a nitrosubstituted aromatic amine sulphonate |
| GB1373908A (en) * | 1971-11-16 | 1974-11-13 | Nat Res Dev | Fire-retardant compositions |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0142074A3 (en) * | 1983-10-25 | 1987-04-01 | Ppg Industries, Inc. | Fire protective intumescent mastic composition |
| US4725457A (en) * | 1986-08-07 | 1988-02-16 | Ppg Industries, Inc. | Resinous compositions and their formulation into intumescent fire protective compositions |
| GB2200915A (en) * | 1987-02-12 | 1988-08-17 | Bayern Chemie Gmbh Flugchemie | An insulating composition for producing an insulating layer on a rocket solid propellant charge |
| US4808476A (en) * | 1987-06-19 | 1989-02-28 | Ppg Industries, Inc. | Method for protecting heat sensitive substrates from fire and excessive heat and resulting article |
| US5091608A (en) * | 1988-07-27 | 1992-02-25 | Minnesota Mining And Manufacturing Company | Flame retardant splicing system |
| US6096812A (en) * | 1996-09-23 | 2000-08-01 | Textron Systems Corporation | Low density, light weight intumescent coating |
| WO1998012270A1 (en) * | 1996-09-23 | 1998-03-26 | Textron Systems Corporation | Low density, light weight intumescent coating |
| US6547992B1 (en) | 1999-01-30 | 2003-04-15 | Clariant Gmbh | Flame retardant combination for thermoplastic polymers l |
| WO2000052104A1 (en) * | 1999-03-04 | 2000-09-08 | Clariant Gmbh | Fire protection coating |
| US6251961B1 (en) | 1999-03-04 | 2001-06-26 | Clariant Gmbh | Flame-retartant coating |
| WO2012101042A1 (en) * | 2011-01-24 | 2012-08-02 | Akzo Nobel Coatings International B.V. | High heat resistant composition |
| EP4335906A1 (en) | 2022-09-09 | 2024-03-13 | Hilti Aktiengesellschaft | Epoxy-based intumescent composition with improved fire protection properties and use thereof |
| WO2024052097A1 (en) | 2022-09-09 | 2024-03-14 | Hilti Aktiengesellschaft | Intumescent epoxy-based composition having improved fireproofing properties, and use of same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8310699D0 (en) | 1983-05-25 |
| NL8301407A (en) | 1983-11-16 |
| GB2121056B (en) | 1985-10-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930420 |