Organosiloxane-containing polysaccharides

Details Organosiloxane-containing polysaccharides Organosiloxane-containing polysaccharides

1989-03-03

1990-11-27

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 84, 536103, 536107, 536112, 536114, 536115, 536120, 428364, 428391, 428393, 428394, 1621641, 162175, 162177, 162178, C08B 1100, C08B 3716, C08B 3102, C08B 3302

Patent

active

049736809

ABSTRACT:
Disclosed are a polysaccharide derivative having the structure: ##STR1## and a polysaccharide graft polymer having the structure: Sacch-O-(G).sub.m -(M)-.sub.n, wherein Sacch- is a polysaccharide; m is zero or one; G is the residue of a polymerizable, unsaturated monomer which is bonded to the polysaccharide in an ether or ester linkage; n is greater than one; M is the residue of one or more polymerizable, unsaturated, monomer(s), at least one of which is a siloxane-containing monomer, which have been grafted to the polysaccharide by free radical polymerization; R is an organic group which is bonded to the polysaccharide by an ether or ester linkage and to the silicon by a carbon-silicon linkage; R.sub.1 is a straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl group, or an aryl, aralkyl or alkaryl group; and R.sub.2 and R.sub.3 are, independently, straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl groups, or aryl, aralkyl or alkaryl groups, or alkoxides of straight or branched C.sub.1 -C.sub.6 alkyl or alkenyl groups, or aryl, aralkyl or alkaryl groups, or alkoxides wherein R.sub.2 and R.sub.3 together form a cyclic structure of at least five members. The siloxane-containing polysaccharide derivatives and polysaccharide graft polymers are useful in glass fiber forming size compositions, in paper making and in other applications.

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Handbook of Water-Soluble Gums and Resins, Davidson, Ed., McGraw-Hill Book Company, 1980, pp. 22-1-22-7.

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