Method for preparing hydrophilic polypropylene membrane

Details Method for preparing hydrophilic polypropylene membrane Method for preparing hydrophilic polypropylene membrane

1998-04-06

1999-11-02

Copenheaver, Blaine R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 48, 264 54, 521 55, 521 75, 521 98, 521905, B29D 6720, C08J 936

Patent

active

059764341

ABSTRACT:
Polypropylene (PP) membranes having a hydrophilic surface have been prepared by extracting a fugitive hydrophilic pore-forming agent from a gelled film prepared by evaporating the solvent from a homogeneous solution of isotactic polypropylene, functionalized polypropylene and the fugitive agent in a solvent, such as xylene. Most of the functional groups, such as --OH, --NH.sub.2 and --COOH, in the functionalized polypropylene are located on the surfaces of the membrane, including pore surfaces. The resulting membranes, especially membranes having an asymmetric structure, are useful for ultrafiltration, dialysis and/or microfiltration.

REFERENCES:
Chung et al., "Kinetic Aspects of the Copolymerization between x-Olefins and Borane Monomer in Ziegler-Natta Catalyst", Reprinted from Macromolecules, Dec. 26, 1993, pp. 3019-3025.

Affiliated with

Also associated with

Rating

Method for preparing hydrophilic polypropylene membrane 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 preparing hydrophilic polypropylene membrane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing hydrophilic polypropylene membrane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2130784