Polyester composition which is particularly suitable for use in

Details Polyester composition which is particularly suitable for use in Polyester composition which is particularly suitable for use in

1987-03-13

1991-02-26

Short, Patricia

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

Synthetic resins

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

264544, 524539, C08L 6702, B29C 5100

Patent

active

049962698

ABSTRACT:
This invention relates to a thermoplastic resin composition which is particularly suitable for use in thermoforming thin walled articles. The thermoplastic resin compositions are comprised of (1) from about 94 to about 99 weight percent polyethylene naphthalate and (2) from about 1 to 6 weight percent of at least one polyester elastomer. The subject invention also deals with thermoforming such thermoplastic resin compositions into articles, such as food trays, having a crystallinity within the range of about 10% to about 40%.

REFERENCES:
patent: 3960807 (1976-06-01), McTaggart
patent: 4572852 (1986-02-01), Gartland

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