Low density extruded foam having high compressive strength

Details Low density extruded foam having high compressive strength Low density extruded foam having high compressive strength

1987-06-26

1989-08-15

Anderson, Philip

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

264 53, 264DIG5, 428332, 521139, 521180, 521182, 521184, 521189, B32B 520, B29C 6722, C08J 914

Patent

active

048573906

ABSTRACT:
A low density extruded structural foam of closed cell structure having good compressive strength comprising a engineered thermoplastic resin, alone, or containing a flame retarding agent and/or nucleating agent, optionally combined with a vinyl aromatic resin, and a blowing agent is produced by feeding said resin, or composition, into a primary extruder wherein mixing, adding a blowing agent which is essentially insoluble in the resin at room temperature but soluble in the melt and further mixing, then optionally passing the mixture to a second, cooling extruder, passing said extruded mixture through a die, then expanding and foaming said composition into a foam article.

REFERENCES:
patent: 3151192 (1964-09-01), Jacobs et al.
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3431164 (1969-03-01), Gilbert
patent: 4454087 (1984-06-01), Hayashi et al.
patent: 4579710 (1986-04-01), Krutchen et al.
patent: 4579873 (1986-04-01), Krutchen et al.
patent: 4579874 (1986-04-01), Krutchen et al.
patent: 4579878 (1986-04-01), Krutchen et al.
patent: 4587271 (1986-05-01), Krutchen et al.
patent: 4594208 (1986-06-01), Krutchen et al.
patent: 4598100 (1986-07-01), Krutchen et al.
patent: 4598101 (1986-07-01), Krutchen et al.
patent: 4598104 (1986-07-01), Krutchen et al.
patent: 4661302 (1987-04-01), Park
patent: 4705811 (1987-11-01), Park
patent: 4734441 (1988-03-01), Park
Schrafft, Fred, "Extruding Thermoplastic Foams", Modern Plastics Encyclopedia, 1982-1983, pp. 274-275.

Affiliated with

Also associated with

Rating

Low density extruded foam having high compressive strength does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low density extruded foam having high compressive strength, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low density extruded foam having high compressive strength will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-120772