C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
117/166, 260/212
C07K 2/00 (2006.01) C03C 25/26 (2006.01) C07K 9/00 (2006.01) C08B 11/08 (2006.01) C08B 31/04 (2006.01) C08B 31/12 (2006.01) C08B 37/00 (2006.01)
Patent
CA 1338654
A polysaccharide derivative having the structure Sacch- O-Z-Ar-CH=N-Y or Image , where Sacch-O- represents a polysaccharide molecule; where Z is Image (CH2)m-O- when Ar is a divalent aromatic group or -(CH2)n- when Ar is a divalent aromatic group other than a phenolic aromatic group and Y is a monovalent group derived from a water-soluble substituted or unsubstituted aromatic compound containing only one free primary amine group; where Z is Image or -(CH2)n- when Ar is a divalent aromatic group and Y is a monovalent group derived from a water-soluble substituted or unsubstituted aliphatic or cycloaliphatic compound containing only one primary amine group; where Z is Image or -(CH2)n- when Ar is a divalent aromatic group and Y is 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 derivatives are useful in glass forming size compositions.
581353
Billmers Robert L.
Del Giudice David M.
Hasuly Michael J.
Tessler Martin M.
Ablestik Laboratories
Borden Ladner Gervais Llp
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