Process for preparing bead polymers

Details Process for preparing bead polymers Process for preparing bead polymers

1977-12-27

1979-06-19

Lilling, Herbert J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 71, 526206, 526207, 526219, 526287, 526292, 526909, 526910, 526923, C08F 208, C08F 220, C08F12000, C08F22200

Patent

active

041587260

ABSTRACT:
Disclosed is a process for preparing a water-soluble bead polymer by dispersing drops of an aqueous solution of water-soluble vinyl monomer in a dispersing medium in the presence of a dispersion stabilizer, and polymerizing the monomer by using monomer selected from the following A and B
(a) a compound of the general formula I ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 may be the same or different and each is linear or branched alkyl of from 1 to 4 carbon atoms, R.sup.4 is hydrogen, linear or branched alkyl of from 1 to 8 carbon atoms, hydroxy alkyl of from 1 to 4 carbon atoms, or benzyl, Y is alkylene or hydroxyalkylene each of from 2 to 4 carbon atoms, and X.sup.- is an anion, or
(B) a mixture of the compound of the formula I and a water-soluble vinyl monomer copolymerizable with the compound (I), and a cellulose ester or a cellulose ether insoluble in water but soluble in the dispersing medium is used as the dispersion stabilizer.

REFERENCES:
patent: 2572560 (1951-10-01), Ham
patent: 3211708 (1965-10-01), Zimmermann et al.
patent: 3278506 (1966-10-01), Chamot et al.
patent: 3719651 (1973-03-01), Greminger et al.
patent: 3806478 (1974-04-01), Mansour et al.
patent: 3975341 (1976-08-01), Trapasso
patent: 4037040 (1977-07-01), Trapasso et al.
patent: 4060678 (1977-11-01), Steckler

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-56674