Preparation of polyester copolymers

Details Preparation of polyester copolymers Preparation of polyester copolymers

1991-02-01

1992-12-29

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528302, 528308, 5283086, C08G 63127, C08G 6388

Patent

active

051752379

ABSTRACT:
Preparation of polyester resins from dimethylterephthalate by forming bis(2-hydroxyethyl) terephthalate, and using a portion of this product as solvent for one or more dicarboxylic acids and one or more dihydric alcohols, reacting the acids and alcohols, and combining the portions, and polymerizing the mixture.

REFERENCES:
patent: 4001187 (1977-01-01), Itabushi et al.

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