Block polymers of hydroxyalkyl phthalate esters and tetrahydrofu

Details Block polymers of hydroxyalkyl phthalate esters and tetrahydrofu Block polymers of hydroxyalkyl phthalate esters and tetrahydrofu

1979-02-12

1980-11-11

Seccuro, Carman J.

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

Synthetic resins

From carboxylic acid or derivative thereof

525169, 525419, 525440, 525448, 528274, 528308, 528309, 528297, C08G 6306, C08G 6360, C08L 6704

Patent

active

042334365

ABSTRACT:
Block polymers containing an hydroxyalkyl phthalate ester as one of the constituent blocks and a copolymer of tetrahydrofuran and one or more alkylene oxides as one or more of the other constituent blocks are useful in preparing polyurethanes and polyesters.

REFERENCES:
patent: 3483169 (1969-12-01), Case et al.
patent: 3907926 (1975-09-01), Brown et al.
patent: 3917743 (1975-11-01), Schroeder et al.
patent: 3963800 (1976-06-01), Gipp et al.
patent: 4081494 (1978-03-01), Sakai et al.
Noshay et al., Block Copolymers, Overview and Critical Survey, Academic Press, 1977, pp. 299-300.

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