C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 63/00 (2006.01) C08G 63/123 (2006.01) C08G 63/20 (2006.01) C08G 83/00 (2006.01)
Patent
CA 2097688
PREPARATION OF MULTIPLY BRANCHED ALIPHATIC-AROMATIC POLYESTERS AND MULTIPLY-BRANCHED ALIPHATIC-AROMATIC POLYESTERS Abstract of the Disclosure A multiply-branched aliphatic-aromatic polyester and a method for producing that polymer. The method comprises condensing a branching reactant represented by the general formula Image . Each j is 1 or 2, each Ar is independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 5 to about 20, each R1 is a linking group independently selected from alkyl having from 1 to about 6 carbons, fluoroalkyl having from 1 to about 6 carbons, -O-, -S-, Image , and Image , Z1 is selected from the group consisting of hydroxyl and - OSi(CH3)3, and each Z2 is independently selected from groups having the structural formula Image , wherein each R2 is independently selected from the group consisting of hydroxy, chloro, bromo, monovalent alkoxide having from 1 to about 6 carbons, and -O- (CH2)g-OH, wherein g is an integer from 1 to 3, or Z1 has the structural formula Image , wherein each R2 is independently selected from the group consisting of hydroxy, chloro, bromo, monovalent alkoxide having from 1 to about 6 carbons, and -O- (CH2)g-OH, wherein g is an integer from 1 to 3, and each Z2 is hydroxyl.
Turner S. Richard
Voit Brigitte I.
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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