Poly(ester-carbonates) and blends based on 3-methyl-4-hydroxy-be

Details Poly(ester-carbonates) and blends based on 3-methyl-4-hydroxy-be Poly(ester-carbonates) and blends based on 3-methyl-4-hydroxy-be

1985-03-06

1987-09-29

Kight, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528176, 528193, 528196, C08G 6362

Patent

active

046969950

ABSTRACT:
New heat resistant, thermoplastic copoly)ester-carbonates) based on 3-methyl-4-hydroxy-benzoic acid are disclosed. The copolymers exhibit higher glass transition temperatures due to the presence of the 3-methyl substituent on the benzoate units of the polymer. They are useful in the preparation of thermoplastic engineering compositions for extrusion or molding into shaped articles.

REFERENCES:
patent: 3169121 (1965-02-01), Goldberg
patent: 3549593 (1970-12-01), Takekoshi et al.
patent: 3737409 (1973-06-01), Fox
patent: 4107143 (1978-08-01), Inata et al.
patent: 4267304 (1981-05-01), Feasey et al.

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