US5028651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant and flame retardant resin composition
Assignee: LG Corp
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Filing: 1988-10-14
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Granted: 1991-07-02
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Expires: 2008-10-14
Abstract
Abstract The present invention provides a novel resin composition possessing excellent heat resistance and flame retardance without the flame dripping during combustion. The claimed resin composition comprises a matrix resin composed of two types of resin components with improved heat resistance; an organic flame retardant; antimony trioxide; and a thermoplastic phenoxy resin.
Inventors
- 👤 Bong H. Park
- 👤 Bong G. Yi
- 👤 Jin N. Yoo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:21
CPC Classifications
C; C08; C08L; C08L55/00; C08L55/02; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A heat resistant and flame retardant resin composition, comprising (A) a graft copolymer prepared by copolymerizing a rubber copolymer and one or more monomers selected from the group consisting of aromatic monoalkenyl monomers, vinylcyan monomers, alkylester monomers of acrylic acid, alkylester monomers of methacrylic acid, maleic anhydride monomers and N-substituted maleimide monomers; (B) a copolymer prepared by copolymerizing one or more monomers selected from the group consisting of aromatic monoalkenyl monomers, vinylcyan monomers, alkylester monomers of acrylic acid, and alkylester monomers of methacrylic acid, with a monomer selected from the group consisting of maleic anhydride monomers and N-substituted maleimide monomers; (C) an organic flame retardant; (D) antimony trioxide; and (E) a thermoplastic phenoxy resin; wherein said graft polymer (A) and copolymer (B) are present in a ratio of 5:95 to 95:5 parts by weight in the resin composition.
Claim 2
Dependent Claim
138 words
A heat resistant and flame retardant resin composition, comprising (A) a graft copolymer prepared by copolymerizing a rubber copolymer and one or more monomers selected from the group consisting of aromatic monoalkenyl monomers, vinylcyan monomers, alkylester monomers of acrylic acid, alkylester monomers of methacrylic acid, maleic anhydride monomers and N-substituted maleimide monomers; (B) a copolymer prepared by copolymerizing one or more monomers selected from the group consisting of aromatic monoalkenyl monomers, vinylcyan monomers, alkylester monomers of acrylic acid, and alkylester monomers of methacrylic acid, with a monomer selected from the group consisting of maleic anhydride monomers and N-substituted maleimide monomers; (C) an organic flame retardant; (D) antimony trioxide; and (E) a thermoplastic phenoxy resin; wherein said graft polymer (A) and copolymer (B) are present in a ratio of 5:95 to 95:5 parts by weight in the resin composition.
Claim 3
Dependent Claim
25 words
The resin composition according to claim 1, wherein the ratio of graft polymer (A) to copolymer (B) is from 10:90 to 90:10 parts by weight.
Claim 4
Dependent Claim
25 words
The resin composition according to claim 1, wherein the ratio of graft polymer (A) to copolymer (B) is from 15:85 to 85:15 parts by weight.
Claim 5
Dependent Claim
32 words
The resin composition according to claim 1, wherein the organic flame retardant is selected from the group consisting of aromatic compounds containing halogens, aliphatic compounds containing halogens and cycloaliphatic compounds containing halogens.
Claim 6
Dependent Claim
34 words
The resin composition according to claim 1, wherein the rubber component is selected from the group consisting of butadiene type rubbers, isoprene type rubbers, copolymers of diene monomers and styrene monomers, and alkylacrylate rubbers.
Claim 7
Dependent Claim
27 words
The resin composition according to claim 1, wherein the rubber component is present in an amount of 5 to 70% by weight of the graft copolymer (A).
Claim 8
Dependent Claim
20 words
The resin composition according to claim 1, wherein the rubber component has a particle size of 0.1 to 1.5 μm.
Claim 9
Dependent Claim
32 words
The resin composition according to claim 1, wherein the monomers of the graft of copolymer (A) are present in an amount of 30 to 95% by weight of the graft copolymer (A).
Claim 10
Dependent Claim
27 words
The resin composition according to claim 1, wherein the organic flame retardant is present in an amount of 5 to 40% by weight of the resin composition.
Claim 11
Dependent Claim
26 words
The resin composition according to claim 1, wherein the antimony trioxide is present in an amount of 1 to 20% by weight of the resin composition.
Claim 12
Dependent Claim
27 words
The resin composition according to claim 1, wherein the thermoplastic phenoxy resin is present in an amount of 0.01 to 5% by weight of the resin composition.
References Cited (Backward Citations)
US3923922A
Cited
US4742104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |