The Dow Chemical Company

Demetrius Urchick

Donald L Schmidt

Louis W Meyer

Thomas C Klingler

Clayton W Hoornstra

William E Broxterman

Warner Jensen, Jr

Polymers comprising pendant amine-functional portions linked to a perfluorocarbon moiety having a perfluoroalkyl group. Such polymers can provide coating compositions which exhibit critical surface tensions of wetting of less than about 15 dynes/cm.

Perfluorocarbon based polymeric coatings having low critical surface

Substrate with perfluorocarbon polymeric coatings having low critical

Coated internal surfaces of molding apparatus and a process for reducing the amount of sticking of material on the internal surface of a molding apparatus are disclosed. The coated substrate and the process both employ release compositions having very low surface tensions comprising (1) a linear or branched polymer containing ionic functional moieties and (2) a perfluorocarbon compound having a counterionic character. Such compositions dissolve in volatile acidic or basic solutions and result in salt precipitates which adhere to substrates upon the evaporation of the volatile acidic or basic solution.

Perfluorocarbon polymeric coatings having low critical surface tensions

AR-Cyclic sulfonium, fused polynuclear areneoxides exemplified by the structural formula: ##STR1## polymerize readily upon exposure to ultraviolet light and/or heat to yield water-insoluble resins useful as adhesives, coatings, films and the like. Fused polynuclear zwitterions containing more than one areneoxide and cyclic sulfonium group per molecule crosslink under such conditions.

Fused poly-nuclear aromatic cyclic sulfonium zwitterions and polymers

Compounds of the formula ##STR1## wherein: EACH R individually is H, OH or C.sub.1 -C.sub.4 alkoxy;

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Midland, MI, United States of America

Demetrius Urchick