Polyester amide and process for producing the same
AssigneeToray Industries, Inc.
InventorsChiaki Tanaka, Shinobu Nakashima, Nagayoshi Naito
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Abstract
A polyester amide having excellent mechanical strength, transparency, resistance to oil, adhesive property and heat-sensitivity, comprises (A) an ester unit derived mainly from a benzenedicarboxylic acid and 1,4-butanediol and (B) an amide unit consisting of dodecaneamide and/or undecaneamide, the weight ratio of the ester unit to the amide unit being from 5:95 to 95:5.
Claims12
A polyester amide comprising (A) an ester unit derived mainly from a benzenedicarboxylic acid and 1,4-butanediol and (B) an amide unit comprising dodecaneamide and/or undecaneamide in a weight ratio of ester unit to amide unit of from 5:95 to 95:5.
A process for producing a polyester amide which comprises copolymerizing (a) at least one acid component selected from benzenedicarboxylic acids and ester-forming derivatives thereof, (b) at least one diol component selected from 1,4-butanediol and its ester-forming derivative and (c) at least one amide-forming component selected from 12-aminododecanoic acid, 11-aminoundecanoic acid and amide-forming derivatives thereof.
An adhesive for fibers which comprises a polyester amide comprising (A) an ester unit derived mainly from a benzenedicarboxylic acid and 1,4-butanediol and (B) an amide unit comprising dodecaneamide and/or undecaneamide and having a composition falling on or within a region, in a triangular composition diagram in FIG. 2, defined by the co-ordinates E, F, G, H, I and J.
An adhesive for metals which comprises a polyester amide comprising (A) an ester unit derived mainly from a benzenedicarboxylic acid and 1,4-butanediol and (B) an amide unit comprising dodecaneamide and/or undecaneamide in a weight ratio of ester unit to amide unit from 5:95 to 80:20.
Dependencies are inferred from the claim text.