Process for producing alkenyl aromatic foams using a combination

Details Process for producing alkenyl aromatic foams using a combination Process for producing alkenyl aromatic foams using a combination

1992-12-22

1993-12-14

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 54, 264DIG5, 521 57, 521 77, 521 79, 521 81, 521139, C08J 912, C08J 9224

Patent

active

052699870

ABSTRACT:
There is disclosed a process for producing alkenyl aromatic foams utilizing a combination of atmospheric and organic gases as blowing agent, preferably using greater than 30% by weight of atmospheric gas, and preferably also using a predetermined about of a masterbatch mix comprising a styrenic polymer, a rubbery block copolymer, and a solid blowing agent. Also disclosed are alkenyl aromatic foams produced by the process which exhibit increased densities, increased thermoforming capabilities, increased post-expansion properties, and increased retainment of the atmospheric and organic gases.

REFERENCES:
patent: 4344710 (1982-08-01), Johnson et al.
patent: 4419309 (1983-12-01), Krutchen
patent: 4424287 (1984-01-01), Johnson et al.
patent: 4916166 (1990-04-01), Suh et al.
patent: 5011866 (1991-04-01), Suh
patent: 5137655 (1992-08-01), Kosin et al.

Affiliated with

Also associated with

Rating

Process for producing alkenyl aromatic foams using a combination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing alkenyl aromatic foams using a combination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing alkenyl aromatic foams using a combination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1702875