Reaction products of terephthalic acid residues and polycarboxyl

Details Reaction products of terephthalic acid residues and polycarboxyl Reaction products of terephthalic acid residues and polycarboxyl

1985-11-12

1987-03-24

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521173, 528299, 528302, 528303, 528304, 528305, 5283081, 5283086, 252182, 560 89, 560 90, 560 91, 560 92, 427373, 4273855, 4283193, 4283197, 4284231, C08G 1814

Patent

active

046525912

ABSTRACT:
A polyester polyol mixture is prepared by reacting a polycarboxylic acid component-containing polyol with a terephthalic acid residue, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for viscosity reduction of the polyester polyol mixture. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams, and laminates thereof.

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J. A. Murphy and B. C. Wilbur, "A Comparison of Propylene Oxide vs. Ethylene Oxide-Based Aromatic Polyester Polyols; Performance Evaluation in Rigid Foam", SPI Meeting, 28th Annual Technical and Marketing Conference, San Antonio, Texas, Nov., 1984.

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