Filled molding composition comprising polyamide having terephthalamide and naphthalamide units
AssigneeAmoco Corporation
InventorYu-Tsai Chen
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Abstract
Fiber- or particulate-filled polyphthalamide molding compositions, wherein the polyphthalamide comprises recurring units obtainable from terephthalic acid, 2,6-naphthalene dicarboxylic acid, aliphatic diamine and, optionally, isophthalic acid, exhibit a desirable combination of thermal, mechanical and solvent resistance properties.
Claims12
An injection moldable composition comprising (1) a crystallizable polyamide component comprising recurring units ##STR3## wherein R comprises a divalent aliphatic radical and the mole ratios of the dicarboxylic acid moieties of the A, C and B units are 45-65:25-55:0-20, respectively, and (2) a fibrous or particulate filler material.
An injection moldable composition comprising (1) a crystallizable polyamide component comprising recurring units ##STR4## wherein R comprises a divalent aliphatic radical and the mole ratios of the dicarboxylic acid moieties of the A, C and B units are 45-65:25-55:0-20, respectively, and (2) a fibrous or particulate filler component comprising glass fibers.
An injection moldable composition comprising (1) a crystallizable polyamide component comprising recurring units ##STR5## wherein R comprises hexamethylene and the mole ratios of the dicarboxylic acid moieties of the A, C and B units are 45-65:25-55:0-20, respectively, and (2) about 10 to about 60 weight percent of a fibrous or particulate filler component comprising glass fibers, based on weight of the filled composition.
Dependencies are inferred from the claim text.