	US 12,071,544 B2
	Radiation-curable composition containing mercapto-functional polyorganosiloxanes for additive-manufacturing technology
Henning Hoffmann, Windach (DE); and Peter U. Osswald, Tuerkheim (DE)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Appl. No. 17/310,388
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
PCT Filed Feb. 17, 2020, PCT No. PCT/IB2020/051309 § 371(c)(1), (2) Date Jul. 30, 2021, PCT Pub. No. WO2020/170114, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 19157710 (EP), filed on Feb. 18, 2019.
Prior Publication US 2022/0112377 A1, Apr. 14, 2022
Int. Cl. C08L 83/08 (2006.01); B29C 64/129 (2017.01); B33Y 70/00 (2020.01); B29K 83/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01); B29L 31/26 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01)

CPC C08L 83/08 (2013.01) [B29C 64/129 (2017.08); B33Y 70/00 (2014.12); B29K 2083/00 (2013.01); B29K 2105/0032 (2013.01); B29K 2995/007 (2013.01); B29K 2995/0077 (2013.01); B29L 2031/26 (2013.01); B29L 2031/721 (2013.01); B29L 2031/753 (2013.01); B29L 2031/768 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12)]

15 Claims

1. 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.