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1. (WO2019064116) PHOTO-RADICAL CURE OF SILICONES
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Pub. No.: WO/2019/064116 International Application No.: PCT/IB2018/057079
Publication Date: 04.04.2019 International Filing Date: 14.09.2018
IPC:
C08L 83/06 (2006.01) ,C09J 7/38 (2018.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
83
Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Compositions of derivatives of such polymers
04
Polysiloxanes
06
containing silicon bound to oxygen-containing groups
[IPC code unknown for C09J 7/38]
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors:
RATHORE, Jitendra S.; US
GADDAM, Babu N.; US
GRIESGRABER, George W.; US
LEWANDOWSKI, Kevin M.; US
ROSCOE, Stephen B.; US
Agent:
LOWN, Jean A.,; US
RHODES, Kevin H.; US
BLANK, Colene H.,; US
HARTS, Dean M. ,; US
LEVINSON, Eric D.,; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RINGSRED, Ted K.,; US
Priority Data:
62/564,51828.09.2017US
Title (EN) PHOTO-RADICAL CURE OF SILICONES
(FR) DURCISSEMENT PHOTO-RADICALAIRE DE SILICONES
Abstract:
(EN) Silicone-based elastomeric materials, articles containing the silicone-based elastomeric materials, reaction mixtures used to form the silicone-based elastomeric materials, and methods of making the silicone-based elastomeric materials are described. The silicone-based elastomeric materials are prepared by polymerizing silicone compounds having at least two ethylenically unsaturated groups in the presence of actinic radiation and a controlled radical initiator. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a single carbon between the two dithiocarbamate or dithiocarbonate groups. The silicone-based elastomeric materials typically have improved mechanical properties compared to silicone-based elastomeric materials formed by free radical polymerization reactions in the presence of conventional photoinitiators.
(FR) L'invention concerne des matériaux élastomères à base de silicone, des articles contenant les matériaux élastomères à base de silicone, des mélanges réactionnels utilisés pour former les matériaux élastomères à base de silicone, et des procédés de fabrication des matériaux élastomères à base de silicone. Les matériaux élastomères à base de silicone sont préparés par la polymérisation de composés de silicone comprenant au moins deux groupes éthyléniquement insaturés en présence d'un rayonnement actinique et d'un initiateur radicalaire régulé. Les initiateurs radicalaires régulés sont des composés bis-dithiocarbamate ou bis-dithiocarbonate possédant un atome de carbone unique entre les deux groupes dithiocarbamate ou dithiocarbonate. Les matériaux élastomères à base de silicone présentent généralement des propriétés mécaniques améliorées par rapport à des matériaux élastomères à base de silicone formés par des réactions de polymérisation radicalaire par radicaux libres en présence de photo-initiateurs classiques.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)