Foamable polymeric composition comprising propylene polymer and

Details Foamable polymeric composition comprising propylene polymer and Foamable polymeric composition comprising propylene polymer and

1982-01-08

1983-10-04

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 453, 264 53, 264DIG5, 264DIG16, 521 79, 521907, 521 92, 521143, 521144, B29H 720

Patent

active

044077688

ABSTRACT:
Compositions comprising propylene polymer, e.g., polypropylene, and hydrated alumina as filler precursor and sole blowing agent, wherein the alumina can be 30 to 60 weight percent of the total composition, are converted into foam having a fine and uniform cellular structure by passage through an unvented extruder at specified temperature profiles and pressures.

REFERENCES:
patent: 2911382 (1959-11-01), Barkhuff, Jr. et al.
patent: 3956212 (1976-05-01), Sakaguchi et al.
patent: 4029612 (1977-06-01), Collington
patent: 4312958 (1982-01-01), DiGuilio et al.
patent: 4323655 (1982-04-01), DiGuilio et al.
"Hackh's Chemical Dictionary", Grant, 4th Ed. Copyright, 1972, p. 32.

Affiliated with

Also associated with

Rating

Foamable polymeric composition comprising propylene polymer and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Foamable polymeric composition comprising propylene polymer and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foamable polymeric composition comprising propylene polymer and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-972835