Low profile additives for unsaturated polyester resins

Details Low profile additives for unsaturated polyester resins Low profile additives for unsaturated polyester resins

1977-12-27

1981-01-13

Pertilla, Theodore E.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525440, 525445, 525921, C08L 6706

Patent

active

042450683

ABSTRACT:
The shrinkage of a thermosettable composition comprising an unsaturated polyester and a vinyl monomer capable of cross-linking the polyester is reduced during cure by the addition to the composition of an alkylene oxide polymer which is soluble in the thermosettable composition but which is substantially less soluble in the cured thermoset composition.

REFERENCES:
patent: 3464852 (1969-09-01), Caldwell et al.
patent: 3483169 (1969-12-01), Case et al.
patent: 3516955 (1970-06-01), Taft
patent: 3701748 (1972-10-01), Kroekel
patent: 3729528 (1973-04-01), Werner et al.
patent: 3810863 (1974-05-01), Hatton, Jr. et al.
patent: 3836300 (1974-09-01), Brewbaker et al.
patent: 3887515 (1975-06-01), Pennington et al.
patent: 3989655 (1976-11-01), Rudolph et al.

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