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US 6,310,145 B1Granted
Flame retardant polyetherimide resin composition with polycarbonate and polysiloxane
AssigneeGeneral Electric Company
InventorsRobert Puyenbroek, Darryl Nazareth
Life of this patent
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Abstract
A thermoplastic resin composition containing a polyetherimide resin, an aromatic polycarbonate resin and a functionalized polysiloxane polymer exhibits flame retarding properties.
Claims12
A thermoplastic resin composition, comprising:
- (a) a polyetherimide resin;
- (b) an aromatic polycarbonate resin;
- and
- (c) a functionalized linear polysiloxane polymer comprising a trimethylsilyloxy-terminated poly(methyl hydrogen siloxane) polymer having a weight average molecular weight of about 1,500 to about 30,000 grams per mole;
- wherein the composition comprises, based on 100 parts by weight of the combined polyetherimide resin and aromatic polycarbonate resin, from 60 to 90 parts by weight of the polyetherimide resin, from 10 to 40 parts by weight of the aromatic polycarbonate resin, and from 0.1 to 4.0 parts by weight of the functionalized linear polysiloxane polymer;
- and wherein the composition has a peak heat release value of 52 to 60 kW/m2 measured according to Federal Aviation Regulations 25.853a, Appendix F, Part V.
3 more elements
A thermoplastic resin composition, comprising the composition obtained by blending a polyetherimide resin;
- an aromatic polycarbonate resin;
- and a functionalized linear polysiloxane polymer comprising a trimethylsilyloxy-terminated poly(methyl hydrogen siloxane) polymer having a weight average molecular weight of about 1,500 to about 30,000 grams per mole;
- and wherein the composition comprises, based on 100 parts by weight of the combined polyetherimide resin and aromatic polycarbonate resin, from 60 to 90 parts by weight of the polyetherimide resin, from 10 to 40 parts by weight of the aromatic polycarbonate resin, and from 0.1 to 4.0 parts by weight of the functionalized polysiloxane polymer;
- and wherein the composition has a peak heat release value of 52 to 60 kW/m2 measured according to Federal Aviation Regulations 25.853a, Appendix F, Part V.
1 more element
A thermoplastic resin composition, comprising:
- (a) from 70 to 80 parts by weight of a polyetherimide resin comprising the polycondensation product of 2,2-bis-[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride with metaphenylene diamine;
- (b) from 20 to 30 parts by weight of an aromatic polycarbonate resin comprising the product of the reaction of 2,2-bis-(4-hydroxyphenyl)propane with a carbonate precursor;
- and
- (c) from 0.2 to 1.0 parts by weight of a functionalized linear polysiloxane polymer comprising a trimethylsilyloxy-terminated poly(methyl hydrogen siloxane) polymer having a weight average molecular weight of from about 3,000 to about 12,000 grams per mole;
- wherein all parts by weight are based on 100 parts by weight of the combined polyetherimide resin and aromatic polycarbonate resin;
- and wherein the composition has a peak heat release value of 52 to 60 kW/m2 measured according to Federal Aviation Regulations 25.853a, Appendix F, Part V.
3 more elements
A thermoplastic resin composition, consisting essentially of:
- (a) from 70 to 80 parts by weight of a polyetherimide resin comprising the polycondensation product of 2,2-bis-[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride with metaphenylene diamine;
- (b) from 20 to 30 parts by weight of an aromatic polycarbonate resin comprising the product of the reaction of 2,2-bis-(4-hydroxyphenyl)propane with a carbonate precursor;
- and
- (c) from 0.2 to 1.0 parts by weight of a functionalized linear polysiloxane polymer comprising a trimethylsilyloxy-terminated poly(methyl hydrogen siloxane) polymer having a weight average molecular weight of from about 3,000 to about 12,000 grams per mole;
- wherein all parts by weight are based on 100 parts by weight of the combined polyetherimide resin and aromatic polycarbonate resin;
- and wherein the composition has a peak heat release value of 52 to 60 kW/m2 measured according to Federal Aviation Regulations 25.853a, Appendix F, Part V.
3 more elements
Dependencies are inferred from the claim text.