PHOTOCURABLE SILICONE COMPOSITIONS AND PROCESS FOR MANUFACTURE OF RELEASE LINERS

A photocurable silicone composition, a method of forming a coating from such compositions, and an article comprising a coating formed from such compositions and/or methods are shown and described herein. The photocurable silicone composition comprises (i) a vinyl functional polysiloxane; (ii) a hydr...

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Bibliographische Detailangaben
Hauptverfasser:	HEPPERLE, Johannes, FELDER, Thorsten, FRYE, Robert Lawrence, WITOSSEK, Anita, CRAMER, Verena, CUMMINGS, John A, ECKBERG, Richard Paul
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING IMPREGNATING OR COATING OF PAPER INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	A photocurable silicone composition, a method of forming a coating from such compositions, and an article comprising a coating formed from such compositions and/or methods are shown and described herein. The photocurable silicone composition comprises (i) a vinyl functional polysiloxane; (ii) a hydride functional polysiloxane; (iii) a photoactive catalyst; and (iv) an acid-anhydride functional polysiloxane. The composition and method can be employed to process thin coatings onto paper and film substrates followed by exposure to actinic radiation at ambient conditions of temperature and atmosphere for manufacture of release liners. L'invention concerne une composition de silicone photodurcissable, un procédé de formation d'un revêtement à partir de telles compositions, et un article comprenant un revêtement formé à partir de telles compositions et/ou procédés. La composition de silicone photodurcissable comprend (i) un polysiloxane à fonction vinyle ; (ii) un polysiloxane à fonction hydrure ; (iii) un catalyseur photoactif ; et (iv) un polysiloxane à fonction acide-anhydride. La composition et le procédé peuvent être utilisés pour le dépôt de revêtements minces sur des substrats en papier et en film, cela étant suivi d'une exposition à un rayonnement actinique dans des conditions ambiantes de température et d'atmosphère pour la fabrication de revêtements anti-adhésifs.