Copolyester-carbonates containing aliphatic diol co-monomers

Details Copolyester-carbonates containing aliphatic diol co-monomers Copolyester-carbonates containing aliphatic diol co-monomers

1981-10-16

1983-04-26

Lee, Lester L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260DIG24, 524128, 528125, 528128, 528173, 528176, 528190, 528191, 528193, 528194, 528195, C08G 6364

Patent

active

043813585

ABSTRACT:
Copolyester-carbonate resins, and articles molded therefrom, exhibiting improved processability comprising the reaction product of; (i) at least one dihydric phenol; (ii) a carbonyl halide carbonate precursor; (iii) at least one difunctional carboxylic acid or a reactive derivative thereof; and (iv) at least one bishaloformate represented by the general formula ##STR1## wherein X represents a halogen radical and R represents an alkylene radical, said bishaloformate being present in an amount effective to improve the processability of said resin.

REFERENCES:
patent: 3030331 (1962-04-01), Goldberg
patent: 3161615 (1964-12-01), Goldberg
patent: 3169121 (1965-02-01), Goldberg
patent: 3207814 (1965-09-01), Goldberg
patent: 3879348 (1975-04-01), Serink et al.
patent: 4194038 (1980-03-01), Baker et al.
patent: 4260719 (1981-04-01), Ching
patent: 4260732 (1981-04-01), Ching
patent: 4312975 (1982-01-01), Salee

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