Polyethylene terephthalate molding compositions

Details Polyethylene terephthalate molding compositions Polyethylene terephthalate molding compositions

1982-06-23

1984-04-03

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524141, 524284, 524292, 524425, 524442, 524297, 524450, 524462, 524296, 524298, C08K 552

Patent

active

044408897

ABSTRACT:
Polyethylene terephthalate molding compositions are provided which comprise a polyethylene terephthalate having an inherent viscosity of at least 0.4, a plasticizer, a lubricating polymer, a nucleating agent, a reinforcing agent or mixture of reinforcing agent and filler, and a molecular weight reducing agent for the polyethylene terephthalate. The molding compositions can be injection molded utilizing mold temperatures below 100.degree. C. (e.g., 60.degree.-90.degree. C.). The molded compositions exhibit an excellent balance of properties such as tensile strength, flex modulus, heat distortion temperature and impact strength.

REFERENCES:
patent: 3368995 (1968-02-01), Furukawa et al.
patent: 3435093 (1969-03-01), Cope
patent: 4234708 (1980-11-01), Edelman et al.
patent: 4284540 (1981-08-01), Iida et al.

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