C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/3017
C08K 5/13 (2006.01) C08K 5/138 (2006.01) C08L 67/02 (2006.01)
Patent
CA 1184336
TITLE THERMOPLASTIC COPOLYESTER ELASTOMERS MODIFIED WITH SALTS OF PHENOLIC COMPOUNDS ABSTRACT OF THE DISCLOSURE A thermoplastic copolyester elastomer composition comprising a copolyester consisting essentially of a multiplicity of long-chain ester units and short-chain ester units joined through ester linkages, said long-chain ester units being represented by the formula (Ia), formula (Ib) and combinations thereof Image (Ia) Image (Ib) and said short-chain ester units being represented by formula (II) Image (II) where G is a divalent radical remaining after the removal of hydroxyl groups from at least one long-chain glycol having a melting point of less than about 55°C and a number average molecular weight of about 400-4000, R is a divalent radical remaining after the removal of carboxyl groups from at least one dicarboxylic acid having a molecular weight less than about 300, R' is a divalent radical remaining after the removal of carboxyl groups from dimer acid, D is a divalent radical remaining after the removal of hydroxyl groups from at least one aliphatic diol having a molecular weight less than about 250, with the proviso that at least about 70 mole percent of the D radicals are either ethylene radicals or 1,4-butylene radicals and at least about 70 mole
422604
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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