Removal of undesirable material from water-soluble polysaccharid

Details Removal of undesirable material from water-soluble polysaccharid Removal of undesirable material from water-soluble polysaccharid

1990-04-09

1991-01-29

Cintins, Ivars

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

210692, 210917, B01D 1504

Patent

active

049888072

ABSTRACT:
A method of removing undesirable material from water-soluble polysaccharide ethers, such as water-soluble cellulose ethers, via contact of an aqueous solution of the water-soluble polysaccharide ether with an anion exchange resin. Anion exchange resins that are useful in the invention are derived from epoxy resin polymers, acrylic based copolymers or a copolymer of styrene-divinylbenzene. The method significantly reduces the amount of colored bodies in the polysaccharide ether.

REFERENCES:
patent: 4454045 (1984-06-01), Perplies
Derwent Publication 100224b, 1970, 23(5), Glazman et al., Use of an Ion-Exchange Resin for Clarifying Pentosan Hydrolyzates of Corncobs.

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