Patent SG-11201906201P-A (SG)
Title: Antimicrobial thermoplastic polyurethanes
Inventor: ZHANG HUA
IPC: C08G18/64
Filed: 2018-01-30
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 02 August 2018 (02.08.2018) WIP0 I PCT onion °nolo mm01111111 Hollow° oimIE (10) International Publication Number WO 2018/140910 Al (51) International Patent Classification: C08G 18/64 (2006.01) C08L 75/00 (2006.01) (21) International Application Number: PCT/US2018/015837 (22) International Filing Date: 30 January 2018 (30.01.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/451,899 30 January 2017 (30.01.2017) US (71) Applicant: LUBRIZOL ADVANCED MATERIALS, INC. [US/US]; 9911 Brecksville Road, Cleveland, Ohio 44141-3247 (US). (72) Inventors: ZHANG, Hua; 2107 Karin Court, #207, Cot- tonwood Heights, Utah 84121 (US). DAY, Roger W.; 9911 Brecksville Road, Cleveland, Ohio 44141-3247 (US). WOOFTER, Richard; 9911 Brecksville Road, Cleve- land, Ohio 44141-3247 (US). MAKAL, Umit G.; 9911 Brecksville Road, Cleveland, Ohio 44141-3247 (US). SMITH, Kiara; 9911 Brecksville Road, Cleveland, Ohio 44141-3247 (US). = (74) Agent: HILKER, Christopher D. et al.; The Lubrizol Corporation, Legal Department, MD022B, 29400 Lakeland Blvd., Wickliffe, Ohio 44092-2298 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.1700) Published: — with international search report (Art. 21(3)) O O 00 O C (54) Title: ANTIMICROBIAL THERMOPLASTIC POLYURETHANES (57) : The disclosed technology provides thermoplastic polyurethane compositions having non-leaching antimicrobial prop- erties while still maintaining good physical properties, methods of making the same, and articles, including medical devices, made from such compositions. The disclosed technology includes a process of making an antimicrobial polymer composition, where the process includes mixing an antimicrobial additive into a polymeric material; wherein said polymeric material comprises a polymeric backbone made u p of urethane linkages derived from a polyisocyanate and a polyol; and wherein said mixing occurs under conditions that result in the breaking of a minority of said urethane bonds resulting in reactive isocyanate groups; and wherein two or more of said reactive isocyanate groups react with said antimicrobial additive to covalently bond said antimicrobial additive into the polymeric backbone of said polymeric material; resulting in an antimicrobial polymer composition.