Patent US1418966A successfully refreshed from Google Patents.
Patent US4144385A successfully refreshed from Google Patents.
US4144385A
Expired / Lapsed
US
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Intumescent coating materials
Assignee: British Industrial Plastics Ltd
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Filing: 1977-11-14
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Granted: 1979-03-13
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Expires: 1997-11-14
Abstract
Abstract An intumescent composition comprising a resinous binder, an inorganic acid source, a carbon source and a blowing agent, the blowing agent comprises (a) a 2-amino s-triazine of general formula ##STR1## in which R 1 and R 2 are the same of different and are each selected from hydrogen, halogen, hydroxyl and amino groups and alkyl, substituted alkyl, alkenyl and substituted alkenyl groups containing up to 6 carbon atoms and (b) a saturated or unsaturated polybasic carboxylic acid containing no more than 2 non-carboxyl carbon atoms per carboxyl group.
Inventors
- 👤 Brian Y. Downing
- 👤 George D. Hamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:32
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0066; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; C09; C09D; C09D5/00; C09D5/18; C09D5/185; C09K; C09K21/00; C09K21/06; C09K21/10; C09K21/12; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
92 words
An intumescent composition comprising a resinous binder and an inorganic acid source, a carbon source and as blowing agent a salt of (a) a 2-amino s-triazine of general formula ##STR3## in which R 1 and R 2 are the same or different and are each selected from the group consisting of hydrogen, halogen, hydroxyl and amino groups and alkyl, substituted alkyl, alkenyl and substituted alkenyl groups containing up to 6 carbon atoms and (b) a saturated or unsaturated polybasic carboxylic acid containing no more than 2 non-carboxyl carbon atoms per carboxyl group.
Claim 2
Dependent Claim
92 words
An intumescent composition comprising a resinous binder and an inorganic acid source, a carbon source and as blowing agent a salt of (a) a 2-amino s-triazine of general formula ##STR3## in which R 1 and R 2 are the same or different and are each selected from the group consisting of hydrogen, halogen, hydroxyl and amino groups and alkyl, substituted alkyl, alkenyl and substituted alkenyl groups containing up to 6 carbon atoms and (b) a saturated or unsaturated polybasic carboxylic acid containing no more than 2 non-carboxyl carbon atoms per carboxyl group.
Claim 3
Dependent Claim
21 words
A composition according to claim 1 in which at least one of R 1 and R 2 is an amino group.
Claim 4
Dependent Claim
12 words
A composition according to claim 2 in which the triazine is melamine.
Claim 5
Dependent Claim
12 words
A composition according to claim 2 in which the triazine is propioguanamine.
Claim 6
Dependent Claim
17 words
A composition according to claim 1 in which the polybasic carboxylic acid is a dibasic carboxylic acid.
Claim 7
Dependent Claim
15 words
A composition according to claim 5 in which the dibasic carboxylic acid is oxalic acid.
Claim 8
Dependent Claim
13 words
A composition according to claim 1 in which the salt is melamine mono-oxalate.
Claim 9
Dependent Claim
13 words
A composition according to claim 1 in which the salt is dimelamine oxalate.
Claim 10
Dependent Claim
15 words
A composition according to claim 1 in which the inorganic acid source is ammonium polyphosphate.
Claim 11
Dependent Claim
24 words
A composition according to claim 1 in which the carbon source material is selected from the group consisting of starches, polyhydric alcohols and sugars.
Claim 12
Dependent Claim
14 words
A composition according to claim 10 in which the carbon source material is dipentaerythritol.
Claim 13
Dependent Claim
27 words
A composition according to claim 1 in which the ratio of resin binder to total intumescent additives is in the range by weight of 75:25 to 40:60.
Claim 14
Dependent Claim
44 words
A composition according to claim 12 in which the ratio of total inorganic acid source to carbon source plus blowing agent is in the range 85:15 and 30:70 and the ratio of carbon source to blowing agent is in the range 90:10 to 10:90.
Claim 15
Dependent Claim
23 words
A composition according to claim 1 in which the resin binder is a solution of an unsaturated polyester resin in an unsaturated monomer.
Claim 16
Dependent Claim
21 words
A composition according to claim 14 in which the unsaturated polyester is plasticized by means of a plasticizing unsaturated polyester resin.
Claim 17
Dependent Claim
24 words
A composition according to claim 15 in which said plasticizing resin contains units derived from long chain dibasic aliphatic acids or long chain polyols.
Claim 18
Dependent Claim
22 words
A composition according to claim 1 which is a paint system in which the resin binder is a solution containing further additives.
Claim 19
Dependent Claim
16 words
A composition according to claim 17 in which the resin binder is an air-drying alkyd resin.
Claim 20
Dependent Claim
16 words
A composition according to claim 17 in which the resin binder is an alkyd/amino stoving composition.
Claim 21
Dependent Claim
21 words
A composition according to claim 1 in which the resin contains 10 to 40 percent by weight of chemically combined halogen.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |