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

1996-08-26

1998-10-06

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 50, 264 53, 521 79, 521139, B29C 4420

Patent

active

058172610

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: 4421866 (1983-12-01), Suh et al.
patent: 4424287 (1984-01-01), Johnson et al.
patent: 4446253 (1984-05-01), Hahn et al.
patent: 4451417 (1984-05-01), Akiyama et al.
patent: 4455272 (1984-06-01), Schubert et al.
patent: 4628072 (1986-12-01), Shiraki et al.
patent: 4636527 (1987-01-01), Suh et al.
patent: 4772441 (1988-09-01), Voss et al.
patent: 4840976 (1989-06-01), Weber et al.
patent: 4912140 (1990-03-01), Tusim
patent: 5000891 (1991-03-01), Green
patent: 5106882 (1992-04-01), Suh et al.
patent: 5110837 (1992-05-01), Harderode et al.
patent: 5149473 (1992-09-01), Leduc
patent: 5149721 (1992-09-01), Ishikawa et al.
patent: 5166221 (1992-11-01), Hahn et al.
patent: 5210105 (1993-05-01), Paquet et al.
patent: 5250577 (1993-10-01), Welsh
patent: 5269987 (1993-12-01), Reedy et al.
patent: 5324458 (1994-06-01), Leduc
patent: 5334337 (1994-08-01), Voelker et al.
patent: 5422378 (1995-06-01), Vo
patent: 5595694 (1997-01-01), Reedy 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-74134