C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/91 (2006.01) C08G 63/19 (2006.01) C08L 67/03 (2006.01)
Patent
CA 2714076
The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): -Ar-W1x-Ar- and by Formula (II): -Ar-, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): (see formula III) and monovalent residues represented by Formula (IV): -O-C(O)-R7-.
Tabata Masayoshi
Yamazaki Takayoshi
Mccarthy Tetrault Llp
Muroran Institute Of Technology
Nitta Corporation
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