Heat-resistant foamed plastic materials

Details Heat-resistant foamed plastic materials Heat-resistant foamed plastic materials

1984-01-04

1984-08-21

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264234, 264321, 264DIG5, 425817C, 521 77, 521 79, 521 81, 521138, 521918, B29H 720, C08J 902

Patent

active

044669330

ABSTRACT:
There are provided methods for making heat-resistant, foamed, crystalline plastic materials. For example, polyethylene terephthalate may be foamed with a polycarbonate, extruded into a foamed sheet and this foamed sheet may be thermoformed by being subjected to crystallization annealing. The thermoformed, foamed, crystalline plastic sheets prepared by this process are particularly useful for forming light weight, ovenable food containers.

REFERENCES:
patent: 3470114 (1969-09-01), Siggel et al.
patent: 4127631 (1978-11-01), Dempsey et al.

Affiliated with

Also associated with

Rating

Heat-resistant foamed plastic materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat-resistant foamed plastic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat-resistant foamed plastic materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1937120