Infrared absorbing polyester packaging polymer

Details Infrared absorbing polyester packaging polymer Infrared absorbing polyester packaging polymer

1997-06-09

1999-07-20

Morgan, Kriellion S.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

264500, C08K 304

Patent

active

059257105

ABSTRACT:
The present invention relates to a polyester polymer composition containing graphite in the range of about 3-60 parts per million based on the polyester. The size of the graphite particles is greater than about 0.5 .mu.m. As an upper limit, however, any particle size which is not visible to the naked eye is acceptable. Such polyester polymers having graphite incorporated therein absorb infrared radiation better than polymers containing no graphite and thus in the production of plastic bottles less energy is required to heat the preform so that it can be blow molded into a bottle.

REFERENCES:
patent: 4408004 (1983-10-01), Pengilly
patent: 4535118 (1985-08-01), Pengilly
patent: 4762749 (1988-08-01), Schuetz
patent: 5409983 (1995-04-01), Jones et al.
patent: 5419936 (1995-05-01), Tindale
patent: 5529744 (1996-06-01), Tindale

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