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1. (WO2018122078) POLYCARBONATE COMPOSITE HAVING AN INCREASED PENCIL HARDNESS
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Pub. No.: WO/2018/122078 International Application No.: PCT/EP2017/083922
Publication Date: 05.07.2018 International Filing Date: 20.12.2017
IPC:
C08J 7/04 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7
Chemical treatment or coating of shaped articles made of macromolecular substances
04
Coating
Applicants:
COVESTRO DEUTSCHLAND AG [DE/DE]; Kaiser-Wilhelm-Allee 60 51373 Leverkusen, DE (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW)
COVESTRO POLYMERS (CHINA) CO. LTD. [CN/CN]; 82 Muhua Road Shanghai Chemical Industry Park Caojing, Shanghai 201507, CN (CN)
Inventors:
GAO, Sean; CN
REN, Lily; CN
YANG, Li; CN
Agent:
LEVPAT; Covestro AG, Gebäude 4825 51365 Leverkusen, DE
Priority Data:
201611271201.026.12.2016CN
Title (EN) POLYCARBONATE COMPOSITE HAVING AN INCREASED PENCIL HARDNESS
(FR) COMPOSITE DE POLYCARBONATE PRÉSENTANT UNE DURETÉ AU CRAYON ACCRUE
Abstract:
(EN) The present invention relates to a polycarbonate composite having an increased pencil hardness, comprising a polycarbonate substrate prepared from a thermoplastic aromatic (co)polycarbonate having a glass-transition temperature in the range of 160 to 210 °C; and a coating on said substrate, said coating being formed by curing a polysiloxane-based thermosetting coating material at a temperature in the range of 140 to 210 °C for 0.5 to 2 hours. The polycarbonate composite has a pencil hardness higher than H, as measured according to ASTM D3363. The present invention also relates to a method for producing said polycarbonate composite and an article comprising the same.
(FR) La présente invention concerne un composite de polycarbonate présentant une dureté au crayon accrue, comprenant un substrat de polycarbonate préparé à partir d'un (co)polycarbonate aromatique thermoplastique ayant une température de transition vitreuse dans la plage de 160 à 210 °C ; et un revêtement sur ledit substrat, ledit revêtement étant formé par durcissement d'un matériau de revêtement thermodurcissable à base de polysiloxane à une température dans la plage de 140 à 210 °C pendant 0,5 à 2 heures. Le composite de polycarbonate a une dureté au crayon supérieure à H, telle que mesurée selon la norme ASTM D3363. La présente invention concerne également un procédé de production dudit composite de polycarbonate et un article le comprenant.
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)