Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1990-01-25
1991-04-30
Nutter, Nathan M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 30, 536 43, 536 45, 536 46, 536 50, 536 52, 536 56, 536 84, C08B 1116, C08B 3018, C08B 3114, C08B 3304, C08B 3504, C08B 3700
Patent
active
050119184
ABSTRACT:
A polysaccharide derivative having the structure Sacch--O--Z--Ar--CH.dbd.N--Y or ##STR1## where Sacch--O-- represents a polysaccharide molecule; Z is --(CH.sub.2).sub.n -- or ##STR2## Ar is a divalent aromatic group; Y is (a) a monovalent group derived from a water-soluble substituted or unsubstituted aromatic compound containing only one free primary amine group, or (b) a monovalent group derived from a water-soluble substituted or unsubstituted aliphatic or cycloaliphatic compound containing only one primary amine group, or (c) a multivalent group derived from a water-soluble protein containing more than one primary amine group; n is one or greater; and m is zero or greater, is prepared by first modifying the polysaccharide with a reagent to introduce free aromatic aldehyde groups and then reacting with a suitable amine-containing reagent. The siloxane-containing starch derivaties are useful in glass forming size compositions.
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Bilimers Robert L.
Del Giudice David M.
Tessler Martin M.
Kelley Margaret B.
National Starch and Chemical Investment Holding Corporation
Nutter Nathan M.
Szala Edwin M.
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