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US 5,476,887 AGranted
Flame retardant polyamides
AssigneeE. I. Du Pont de Nemours and Company
InventorTrevor L. Court
Life of this patent
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Abstract
Flame retardant polyamide compositions are provided which contain melamine as the flame retardant. Flame retardant benefits are particularly realized by a composition which is a blend of melamine with a copolymer of polyamide-6,6 with another dicarboxylic acid, said copolymer having a melting point below 250.degree. C.
Claims2
A flame retardant polyamidc composition consisting of:
- (a) a copolymer of polyamide 6.6 and at least one other monomer selected from the group consisting of a dicarboxylic acid of 7-14 carbon atoms, m-benzenedicarbozylic acid, o-benzenedicarboxylic acid, and p-benzenedicarboxylic acid;
- said copolymer having a melting point below 250.degree. C.;
- and
- (b) 10-20% by weight of melamine based on the weight of the composition.
1 more element
Dependencies are inferred from the claim text.