Method for producing a foamed resin using a blowing and extracti

Details Method for producing a foamed resin using a blowing and extracti Method for producing a foamed resin using a blowing and extracti

1989-12-13

1992-07-28

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 53, 528483, B29C 6722

Patent

active

051339137

ABSTRACT:
There is disclosed a method for producing a foamed resin which incolves the steps of removing volatile substances from a polymer by contacting the polymer with an extractant and foaming the purified polymer by using the same extractant dissolved in the polymer as a foaming agent. According to the disclosure the purification and blowing of a polymer can be carried out efficiently and economically with a purification sufficient to meet market demand and with a desired blowing expansion rate.

REFERENCES:
patent: 2194036 (1940-03-01), Talalay
patent: 2531665 (1950-11-01), Booth
patent: 3150214 (1964-09-01), Scalora et al.
patent: 3184419 (1965-05-01), Merriman
patent: 3243485 (1966-03-01), Griffin
patent: 3600483 (1971-08-01), Davis et al.
patent: 4120923 (1978-10-01), Kloker et al.
patent: 4205149 (1980-05-01), Cich et al.
patent: 4526907 (1985-07-01), Thiala et al.
patent: 4695621 (1987-09-01), Allada
patent: 4703105 (1987-10-01), Allada
patent: 4810570 (1989-03-01), Ruttan et al.
patent: 4906672 (1990-03-01), Stone et al.
patent: 4911869 (1990-03-01), Mayer et al.
patent: 5049328 (1991-09-01), Meyer et al.

Affiliated with

Also associated with

Rating

Method for producing a foamed resin using a blowing and extracti 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 a foamed resin using a blowing and extracti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing a foamed resin using a blowing and extracti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1685739