Coating ingredient and method of making same

Details Coating ingredient and method of making same Coating ingredient and method of making same

C - Chemistry, Metallurgy

09

D

400/1337

C09D 3/20 (1980.01) C09D 3/76 (1980.01) D21H 3/28 (1980.01) D21H 3/40 (1980.01)

Patent

CA 1156789

ABSTRACT OF THE DISCLOSURE The volatile alkali salt of the reaction product of a waxy starch product having a high amylopectin content and styrene- maleic anhydride copolymer and the method of making such product comprising hydrolyzing the copolymer in the presence of the high amylopectin starch product at an elevated temperature and in the presence of water for a time sufficient to hydrolyze the copolymer, disperse the starch to react, adding a volatile alkali to the heated mixture, and continuing the heating for a time sufficient to form the volatile alkali salt of said reaction product. The invention also comprises coatings comprising the volatile alkali salt of said reaction product

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