D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
117/168
D21H 17/53 (2006.01) D21H 17/28 (2006.01)
Patent
CA 1110124
POLYESTER-STARCH SIZED PAPER, SIZING COMPOSITION, AND PROCESS THEREFOR Abstract of the Disclosure There is disclosed a cellulosic material such as paper or paperboard surface-sized with an aqueous dispersion of a combination of degraded starch or a starch derivative and a branched-chain, water-dispersible polyester condensation product. Said polyester is derived from the reaction of a dicarboxylic reactant, a diol or polyoxyalkylene glycol, and a phosphorus acid reactant wherein said polyester has a carboxylic acid number of about 5 to about 15 and an average molecular weight of about 4,000 to about 11,000. Mixtures of said starch and said polyester when used to surface-size cellulosic materials impart water resistance thereto.
327884
Dutton Daniel R.
Login Robert B.
Basf Wyandotte Corporation
Robic Robic & Associes/associates
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