Flame-retardant polymer composition and article
First Claim
Patent Images
1. A composition comprising the product of melt blending:
- 40 to 70 weight percent polyamide;
20 to 50 weight percent acid-functionalized poly(phenylene ether);
5 to 30 weight percent polyimide; and
an amount of metal dialkylphosphinate effective to provide a flammability rating of V-1 or V-0 in the 20 mm Vertical Burning Flame Test of Underwriter'"'"'s Laboratory Bulletin 94 “
Tests for Flammability of Plastic Materials, UL 94”
;
wherein all weight percents are based on the total weight of the composition.
2 Assignments
0 Petitions
Accused Products
Abstract
A flame-retardant polymer composition includes specific amounts of polyamide, acid-functionalized poly(phenylene ether), polyimide, and metal dialkylphosphinate. The composition, which exhibits improved flame retardancy and tensile modulus relative to known blends of poly(phenylene ether), polyamide, and polyimide, is useful for forming electrical components, such as photovoltaic junction boxes and connectors, inverter housings, automotive electrical connectors, electrical relays, and charge couplers.
-
Citations
18 Claims
-
1. A composition comprising the product of melt blending:
-
40 to 70 weight percent polyamide; 20 to 50 weight percent acid-functionalized poly(phenylene ether); 5 to 30 weight percent polyimide; and an amount of metal dialkylphosphinate effective to provide a flammability rating of V-1 or V-0 in the 20 mm Vertical Burning Flame Test of Underwriter'"'"'s Laboratory Bulletin 94 “
Tests for Flammability of Plastic Materials, UL 94”
;wherein all weight percents are based on the total weight of the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An article comprising a composition comprising the product of melt blending:
-
40 to 70 weight percent polyamide; 20 to 50 weight percent acid-functionalized poly(phenylene ether); 5 to 30 weight percent polyimide; and an amount of metal dialkylphosphinate effective to provide a flammability rating of V-1 or V-0 in the 20 mm Vertical Burning Flame Test of Underwriter'"'"'s Laboratory Bulletin 94 “
Tests for Flammability of Plastic Materials, UL 94”
;wherein all weight percents are based on the total weight of the composition. - View Dependent Claims (17, 18)
-
Specification