US4178409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant coating composition and fabric coated therewith
Assignee: Meisei Chemical Works Ltd
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Filing: 1977-08-12
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Granted: 1979-12-11
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Expires: 1997-08-12
Abstract
Abstract A fabric is coated with a composition which comprises a thermoplastic polyurethane and 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR1## wherein each n1 and n2 represents zero or a positive integer and n1 + n2 is zero or one of the integers from 1 to 8, and preferably a polyisocyanate as a cross-linking agent.
Inventors
- 👤 Mikio Tomita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:20
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08K; C08K5/00; C08K5/04; C08K5/06; C09; C09D; C09D175/00; C09D175/04; Y; Y10; Y10S; Y10S521/00; Y10S521/906; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2713
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
A flame retardant coating composition which consists essentially of a hydroxyl-terminated thermoplastic polyurethane and the additive 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR3## wherein each n1 and n2 represents zero or a positive integer and n1+n2 is zero or one of the positive integers from 1 to 8, in the weight ratio of 20 parts polyurethane to 3-30 parts of said propane derivative.
Claim 2
Dependent Claim
64 words
A flame retardant coating composition which consists essentially of a hydroxyl-terminated thermoplastic polyurethane and the additive 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR3## wherein each n1 and n2 represents zero or a positive integer and n1+n2 is zero or one of the positive integers from 1 to 8, in the weight ratio of 20 parts polyurethane to 3-30 parts of said propane derivative.
Claim 3
Dependent Claim
34 words
A flame retardant coating composition as defined in claim 1, wherein said coating composition contains 20 parts by weight of thermoplastic polyurethane and 7-20 parts by weight of said 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative as an additive.
Claim 4
Dependent Claim
19 words
A flame retardant coating composition as defined in claim 1, wherein said coating composition is an organic solvent solution.
Claim 5
Dependent Claim
75 words
A coated fabric which is obtained by applying to a fabric a coating composition containing an organic solvent solution of a hydroxyl-terminated thermoplastic polyurethane admixed with a 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR4## wherein each n1 and n2 represents zero or a positive integer and n1+n2 is zero or one of the positive integers from 1 to 8, in the weight ratio of 20 parts polyurethane to 3-30 parts of said propane derivative.
Claim 6
Dependent Claim
75 words
A coated fabric which is obtained by applying to a fabric a coating composition containing an organic solvent solution of a hydroxyl-terminated thermoplastic polyurethane admixed with a 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR4## wherein each n1 and n2 represents zero or a positive integer and n1+n2 is zero or one of the positive integers from 1 to 8, in the weight ratio of 20 parts polyurethane to 3-30 parts of said propane derivative.
Claim 7
Dependent Claim
34 words
A coated fabric as defined in claim 4, wherein said coating composition consists essentially of a mixture of 20 parts by weight of thermoplastic polyurethane and 3-30 parts by weight of said 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative.
Claim 8
Dependent Claim
34 words
A coated fabric as defined in claim 5, wherein said coating composition consists essentially of a mixture of 20 parts by weight of thermoplastic polyurethane and 7-20 parts by weight of said 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative.
Claim 9
Dependent Claim
17 words
A coated fabric as defined in claim 4, wherein said coating composition is an organic solvent solution.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |