Process of processing a radiation-curable thiolen based composition with additive-manufacturing technology

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United States of America Patent

PATENT NO 11591438
APP PUB NO 20210214504A1
SERIAL NO

17056189

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Abstract

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The invention relates to a process of processing a radiation-curable composition with an additive-manufacturing technique comprising a radiation-curing step, the radiation-curable composition comprising mercapto-functional Component A comprising at least three mercapto moieties, crosslinker Component B with at least three vinyl or allyl moieties, photo-initiator(s) Component C for initiating a curing reaction between Component A and Component B, wherein the radiation-curable composition does not comprise urethane (meth)acrylate oligomers in an amount of more than 4 wt. % with respect to the whole composition. 3-dim articles which can be produced are typically transparent and have adequate mechanical properties. The radiation-curable composition is in particular useful for producing clear-tray aligners for dental and orthodontic purposes.

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Patent Owner(s)

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

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoffmann, Henning Windach, DE 23 142
Osswald, Peter U Tuerkheim, DE 15 21
Zech, Joachim W Kaufering, DE 28 84

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