Water-soluble monomer, water-soluble polymer and their productio

Details Water-soluble monomer, water-soluble polymer and their productio Water-soluble monomer, water-soluble polymer and their productio

1997-04-09

1999-01-05

Smith, Jeffrey

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526240, C08F12058, C08F13004

Patent

active

058564187

ABSTRACT:
A water-soluble monomer is shown by general formula (1) below. This monomer, for example, can be obtained by reacting asparagic acid and maleic anhydride in an aqueous basic solution under cooled conditions. A water-soluble polymer has a structural unit of general formula (2) below and a weight-average molecular weight of about 800 to about 8,000,000, and is, for example, produced by polymerizing a monomer including the water-soluble monomer of general formula (1). The water-soluble polymer has excellent chelating and dispersing actions and therefore can favorably be used for various purposes, such as, detergent compositions, inorganic-pigment dispersants, fiber-treating agents, water-treating agents, wood pulp-bleaching assistants. ##STR1##

REFERENCES:
patent: 4157418 (1979-06-01), Heilmann
patent: 4172934 (1979-10-01), Heilmann
patent: 4320173 (1982-03-01), Coran et al.
patent: 5369142 (1994-11-01), Culbertson et al.
Subasinghe et al., Synthesis of Acyclic and Dehydroaspartic Acid Analogues of Ac-Asp-Glu-OH and Their Inhibition of Rat Brain N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALA Dipeptidase), J. Med. Chem., 1990, pp. 2734-2744, vol. 33, No. 10, American Chemical Society.

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