Reimpregnation of plastic foam particles with CO.sub.2

Details Reimpregnation of plastic foam particles with CO.sub.2 Reimpregnation of plastic foam particles with CO.sub.2

1988-10-11

1990-03-27

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 51, 264 53, B29D 6720

Patent

active

049118692

ABSTRACT:
The process of making foam moldings without the use of organic blowing agents involves the use of inorganic gases such as carbon dioxide, nitrogen, air, solid carbon dioxide and other pneumatogens. Because of the rapidity with which these gases diffuse out of the polymer particles, it is necessary to pre-expand the particles and then reimpregnate the particles with the same or different gas.

REFERENCES:
patent: 2531665 (1950-11-01), Booth
patent: 2714747 (1955-08-01), Lindemann et al.
patent: 2714748 (1955-08-01), Stirnemann et al.
patent: 2751627 (1956-06-01), Lindemann
patent: 2768407 (1956-10-01), Lindemann
patent: 2848427 (1958-08-01), Rubens
patent: 3243485 (1966-03-01), Griffin
Concise Chemical and Technical Dictionary, Fourth Enlarged Edition edited by H. Bennett, New York, Chemical Publishing Co., Inc., c 1966, p. 916.

Affiliated with

Also associated with

Rating

Reimpregnation of plastic foam particles with CO.sub.2 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reimpregnation of plastic foam particles with CO.sub.2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reimpregnation of plastic foam particles with CO.sub.2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1649142