Method of preparation of water-soluble copolymer

Details Method of preparation of water-soluble copolymer Method of preparation of water-soluble copolymer

1995-12-14

1997-12-23

Nagumo, Mark

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525296, 525301, 526 73, 526264, 5263031, 526304, 5263184, C08F27102

Patent

active

057008736

ABSTRACT:
A method is provided for the production of a water-soluble or water-dispersible copolymer. The copolymer is comprised of a water-soluble base monomer and/or a water-soluble or water-dispersible macromer. The disclosed method involves a two step polymerization procedure wherein in a first step a minor portion of the reactants are polymerized to conversion under conditions which result in the formation of a low molecular weight product, and in a second step the remaining portion of the reactants are polymerized to conversion in the presence of the reaction product of the first step under conditions which result in the production of a higher molecular weight product.

REFERENCES:
patent: 2864808 (1958-12-01), Harris
patent: 2983717 (1961-05-01), Henley et al.
patent: 3575911 (1971-04-01), Peterson
patent: 3732193 (1973-05-01), Svarz
patent: 3948866 (1976-04-01), Pennewiss et al.
patent: 4178221 (1979-12-01), Boutin et al.
patent: 4361687 (1982-11-01), Arndt et al.
patent: 4442258 (1984-04-01), Sunakawa et al.
patent: 4897458 (1990-01-01), Seelmann-Eggebert et al.
patent: 5314977 (1994-05-01), Amick et al.
patent: 5319020 (1994-06-01), Rosenski et al.
patent: 5326644 (1994-07-01), Scholz et al.
patent: 5464908 (1995-11-01), Sato et al.
patent: 5508367 (1996-04-01), Zajaczkowski

Affiliated with

Also associated with

Rating

Method of preparation of water-soluble copolymer 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 of preparation of water-soluble copolymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparation of water-soluble copolymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1803392