Process for preparing a porous polymer article

Details Process for preparing a porous polymer article Process for preparing a porous polymer article

1986-07-07

1987-11-10

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 61, 521 841, 521143, 521145, C08J 926

Patent

active

047058099

ABSTRACT:
A porous polymer article for use as a filter medium or battery separator is prepared by admixing a cellulosic compound and a thermoplastic polymer, both usually in powder form, forming the article under pressure and heat to melt and flow the thermoplastic polymer into a continuous phase and after cooling to set the polymer matrix, contacting the set admixture with a solvent, e.g. water, for the cellulosic compound which will not also dissolve the polymer matrix to produce a porous polymer which has a predetermined degree of porosity and is free from residual salt. The article so produced is also disclosed.

REFERENCES:
patent: 3367891 (1968-02-01), Ingram
patent: 3388082 (1968-06-01), Rodgers et al.
patent: 3454544 (1969-07-01), Young et al.
patent: 3873518 (1975-03-01), Strange et al.
patent: 4015067 (1977-03-01), Lin et al.
patent: 4115492 (1978-09-01), Mahoney et al.
patent: 4425206 (1984-01-01), Hutchinson
patent: 4456751 (1984-06-01), Messelt et al.

Affiliated with

Also associated with

Rating

Process for preparing a porous polymer article 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 preparing a porous polymer article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing a porous polymer article will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1068396