Acrylic amphoteric polymers

Details Acrylic amphoteric polymers Acrylic amphoteric polymers

1982-05-12

1988-06-07

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526234, 526236, 526237, 5253282, 525369, L08F 2600

Patent

active

047497629

ABSTRACT:
Amphoteric polymers prepared by polymerization of (a) acrylic acid, (b) N,N-dimethyl- orN,N-diethylaminoethyl methacrylate and, optionally, (c) esters of methacrylic or acrylic acid prepared by (i) emulsion polymerization of (b), (c) and the methyl ester of (a), followed by basic hydrolysis, or (ii) polymerization of (a), (b) and (c) in the presence of a strong acid, and photographic emulsions comprised of said polymers in which the molar ratio of (a) to (b) is at least 2 to 1 and a silver halide.

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Merle et al., Macromolecules, 15, No. 2, pp. 360-366 (Mar.-Apr. 1982).

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