Radiation-curable composition containing mercapto-functional polyorganosiloxanes for additive-manufacturing technology

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United States of America

PATENT NO 12071544
SERIAL NO

17310388

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Abstract

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The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D dissolved in mercapto-functional polyorganosiloxane(s) as Component E, the mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, wherein Component D is dissolved in Component E before Component D is combined with the other components of the radiation-curable silicone composition. The invention also relates to a process of producing a radiation-curable composition wherein the process comprises the steps of providing a solution of dye(s) in a composition comprising mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, combining the solution containing the dye(s) dissolved in the mercapto-functional polyorganosiloxane(s) with mercapto-functional polyorganosiloxane(s), organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties, photo-initiator(s) for initiating a curing reaction between Component A and Component B, optionally filler(s), stabilizer(s) and additive(s).

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Patent Owner(s)

Patent OwnerAddress
SOLVENTUM INTELLECTUAL PROPERTIES COMPANYMAIL STOP 275-6E-21 2510 CONWAY AVE E MAPLEWOOD MN 55144

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoffmann, Henning Windach, DE 23 142
Osswald, Peter U Tuerkheim, DE 15 21

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