Method for producing crosslinked foam

Details Method for producing crosslinked foam Method for producing crosslinked foam

1983-10-14

1985-11-12

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 54, 264177R, 264338, 264DIG13, 264DIG18, 425 97, 425325, 425817C, B29D 2700, B29F 304

Patent

active

045527083

ABSTRACT:
A method for producing a crosslinked, uniformly expanded article of thermoplastic resin is provided.
Thermoplastic resin containing a crosslinking agent and a foaming agent is extruded through a long-land die which is provided with a choking orifice at an end and/or an intermediate portion thereof; a lubricant is provided on the inner surface of the long-land die; the crosslinking agent is decomposed in the long-land die to lower the flow rate of the resin and the foaming agent is decomposed or heated to its boiling point in the long-land die to provide an expandable resin and the crosslinked, expandable resin is then released into an atmospheric or controlled pressure zone to produce the uniform, finely expanded article.

REFERENCES:
patent: 2537977 (1951-01-01), Dulmage
patent: 3030623 (1962-04-01), Lehti et al.
patent: 3928525 (1975-12-01), Fuwa et al.
patent: 4071591 (1978-01-01), Kobayashi et al.
patent: 4483815 (1984-11-01), Torghele
Toyo Seiki Seisaku-sho Brochure: "Standard Geer Type Aging Tester", Tokyo, Japan, Toyo Seiki Seisaku-sho, Ltd., Jun. 1983, 8 pages.

Affiliated with

Also associated with

Rating

Method for producing crosslinked foam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing crosslinked foam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing crosslinked foam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1878993