Moulding compositions including a mixture of two polyesters

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 326R, 260 40R, C08K 512, C08K 517, C08L 6706

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active

042631955

ABSTRACT:
Moulding composition comprising from 10 to 50% by weight of a mixture of a first polyester obtained by polycondensation of an alkylene glycol with maleic and/or fumaric acid and a second polyester obtained by polycondensation of an alkylene glycol with an aromatic dicarboxylic acid or a mixture thereof with maleic and/or fumaric acid, the first polyester being present in an amount of from 5 to 50 parts by weight for each 100 parts by weight of the sum of the first and second polyesters, from 0.2 to 2% by weight of an organic peroxide having a decomposition temperature above 70.degree. C., and one or more inert fillers.
The composition can be formed into free-flowing granules, free from a tendency to agglomerate, and can be moulded by injection moulding like thermoplastic materials.

REFERENCES:
patent: 3736278 (1973-05-01), Wada et al.
patent: 3909483 (1975-09-01), Hindersinn et al.
patent: 3994853 (1976-11-01), Hindersinn et al.
patent: 4069193 (1978-01-01), Vargiu et al.
patent: 4076767 (1978-02-01), Samejima
patent: 4077939 (1978-03-01), Paparatto et al.
patent: 4172059 (1979-10-01), Atkins et al.

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