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Title: Product and process for preparing polyvinyl alcohol deposits of reduced water sensitivity

Abstract: The water resistance of compositions containing polyvinyl alcohol as binder is considerably increased by incorporating therein boric acid and a buffer or a compound which on heating irreversibly reacts to render the mixture alkaline. Sodium trichloro acetate is especially suitable.


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Inventors: Zimmermann, Wolfgang (Taunus, DE, US)
Schindler, Hermann (Taunus, DE, US)

Application Number: 701820
Filing Date: 1976-07-01
Publication_date: 1978-07-04
Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE)
Primary Class(es): 525/61 427/391, 427/393.4, 524/319
Other Classes:
US Patent Ref:
2716049Aug, 1955Latour18/54.

Other Refs:
Primary Examiner: Levin, Stanford M.
Assistant Examiner:
Attorney: Curtis, Morris & Safford