US3981843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact-resistant, flame-retardant resin composition
Assignee: Daicel Corp
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Filing: 1974-09-27
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Granted: 1976-09-21
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Expires: 1994-09-27
Abstract
Abstract An impact-resistant, flame-retardant resin composition is disclosed comprising I. 100 parts by weight of a resin mixture of:
Inventors
- 👤 Hiroyuki Yoshizaki
- 👤 Hiromitsu Takanohashi
- 👤 Yoshitaka Masuda
- 👤 Yukio Hozumi
- 👤 Akira Ohi
- 👤 Yuzo Sonoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:32
CPC Classifications
C; C08; C08K; C08K13/00; C08K13/02; C08L; C08L55/00; C08L55/02; C08L69/00; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
An impact-resistant, flame retardant, blended resin composition in which the resin components of said composition consist essentially of a mixture of A. from 15 to 85 weight percent of ABS resin, B. from 15 to 85 percent by weight of a high molecular weight aromatic polycarbonate copolymer prepared from a mixture of bisphenols consisting essentially of from 5 to 50 weight percent of nuclear-halogen-substituted bisphenol and the balance is an unsubstituted bisphenol, and an inorganic or organic antimony flame-retardant compound in an amount of from 0.3 to 5 parts by weight per 100 parts by weight of the resin mixture.
Claim 2
Dependent Claim
100 words
An impact-resistant, flame retardant, blended resin composition in which the resin components of said composition consist essentially of a mixture of A. from 15 to 85 weight percent of ABS resin, B. from 15 to 85 percent by weight of a high molecular weight aromatic polycarbonate copolymer prepared from a mixture of bisphenols consisting essentially of from 5 to 50 weight percent of nuclear-halogen-substituted bisphenol and the balance is an unsubstituted bisphenol, and an inorganic or organic antimony flame-retardant compound in an amount of from 0.3 to 5 parts by weight per 100 parts by weight of the resin mixture.
Claim 3
Dependent Claim
28 words
A resin composition according to claim 1 in which the copolymer (B) has a limiting viscosity of from about 0.25 to about 0.75 in methylene chloride at 25°C.
Claim 4
Dependent Claim
15 words
A resin composition according to claim 1 in which the antimony compound is antimony trioxide.
Claim 5
Dependent Claim
21 words
A resin composition according to claim 1 in which the copolymer B is a copolymer of tetrabromobisphenol A and bisphenol A.
Claim 6
Dependent Claim
52 words
A resin composition according to claim 1, in which the resin mixture consists essentially of from 35 to 70 weight percent of (A) and the balance is (B), and the amount of antimony compound is from about 0.5 to 3 parts by weight, per 100 parts by weight of the resin mixture.
Claim 7
Dependent Claim
24 words
A resin composition according to claim 1, wherein (B) contains from 5 to 30 weight percent of nuclear-halogen-substituted-bisphenol and the balance is unsubstituted phenol.
Claim 8
Dependent Claim
72 words
A resin composition according to claim 1, in which said ABS resin contains from 5 to 50 parts by weight of polybutadiene or butadiene copolymer per 100 parts by weight of the sum of a vinyl cyano compound and vinyl aromatic compound, and wherein the sum of said vinyl cyano compound plus vinyl aromatic compound comprises from 10-50 weight percent of vinyl cyano compound and the balance is said vinyl aromatic compound.
Claim 9
Dependent Claim
74 words
A resin composition according to claim 7, wherein the ABS resin contains from 10 to 35 parts by weight of polybutadiene or butadiene copolymer per 100 parts by weight of the sum of said vinyl cyano compound and said vinyl aromatic compound and wherein the sum of said vinyl cyano compound plus said vinyl aromatic compound comprises 20 to 40 weight percent of said vinyl cyano and the balance is said vinyl aromatic compound.
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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |