Water-soluble high polymers and their preparation

Details Water-soluble high polymers and their preparation Water-soluble high polymers and their preparation

1977-09-30

1979-02-06

Lilling, Herbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

210 54, 260884, 260885, 260886, 526 78, 526 80, 526202, 526229, 526287, 526292, 526303, 526304, 526305, 526312, 526923, C08F26710, C08F 200, C08F 430, C08F22000

Patent

active

041384466

ABSTRACT:
In the production of a water-soluble, cationic high polymer of (A) at least one of acrylamide and methacrylamide and (B) at least one of ammonium type monomers of either one of the formulas: ##STR1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 and R.sub.3 are each a lower alkyl group, R.sub.4 is a hydrogen atom, a lower alkyl group, an aryl group, a hydroxy(lower)alkyl group, a benzyl group or a group of the formula: --CH.sub.2 COO(CH.sub.2).sub.m CH.sub.3 (m being an integer of 0 or 1), R.sub.5 .crclbar. is a group of either one of the formulas: --(CH.sub.2).sub.2 COO.crclbar. and --(CH.sub.2).sub.3 SO.sub.3 .crclbar., X is a halogen atom or an acid residue, Y is --O-- or --NH-- and n is an integer of 1 to 4, a process which comprises initiating the polymerization of the monomeric component (A) with or without a portion of the monomeric component (B) in an aqueous medium containing an organic solvent selected from the group consisting of acetone, acetonitrile, t-butanol, tetrahydrofuran and dioxane at a concentration of about 15 to 70% by weight until the polymerization proceeds to a certain extent and then continuing polymerization while adding the remaining portion of the monomeric component (B) thereto under the occasional supplementation of a water-miscible organic solvent thereto so as to keep an appropriate viscosity of the reaction system to produce the high polymer in a high yield with ease.

REFERENCES:
patent: 2946770 (1960-07-01), Bader et al.
patent: 3026293 (1962-03-01), Caldwell et al.
patent: 3541037 (1970-11-01), Finn et al.
patent: 3661880 (1972-05-01), Markert et al.
patent: 3666704 (1972-05-01), Keppler et al.
patent: 3758642 (1973-09-01), Logemann et al.
patent: 3907927 (1975-09-01), Guilbault
patent: 3943190 (1976-03-01), Abe et al.

Affiliated with

Also associated with

Rating

Water-soluble high polymers and their preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Water-soluble high polymers and their preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water-soluble high polymers and their preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-891391