Patent SG-11201806800S-A (SG)
Title: Compositions for control and inhibition of polymerization of vinyl aromatic monomers, and methods of use thereof
Inventor: SUBRAMANIYAM MAHESH
IPC: C08F12/08
Filed: 2017-02-09
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/137924 Al 17 August 2017 (17.08.2017) WIPO I PCT 1111111111111101110111111111110101111101111111101111111111010101111111111111110111111 (51) International Patent Classification: C07C 7/20 (2006.01) C08F 2/38 (2006.01) CO8F 12/08 (2006.01) CO8F 2/40 (2006.01) CO7C 15/46 (2006.01) (21) International Application Number: PCT/IB2017/050718 (22) International Filing Date: 9 February 2017 (09.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201621005100 13 February 2016 (13.02.2016) IN (71) Applicant: DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED [IN/IN]; Dorf Ketal Tower, D'Monte Street, Orlem, Malad (W), MUMBAI — 400064, Maharashtra, INDIA, Mumbai 400064 (IN). (72) Inventor: SUBRAMANIYAM, Mahesh; Dorf Ketal Tower, D'Monte Street, Orlem, Malad (W), MUMBAI — 400064, Maharashtra, INDIA, Mumbai 400064 (IN). (74) Agent: MEHTA, Ramesh Kumar; Mehta & Mehta Asso- ciates, Mehta House, B-474, Sushant Lok-I, Sector 27, Gurgaon 122 002, NCR (IN). (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, 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, 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), 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 the identio. , of the inventor (Rule 4.17(i)) as to applicant's entitlement to apply for and be granted a patent (Rule 4.1700) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) W O 20 17 / 137 9 24 Al (54) Title: COMPOSITIONS FOR CONTROL AND INHIBITION OF POLYMERIZATION OF VINYL AROMATIC MONOMERS, AND METHODS OF USE THEREOF (57) : The present invention relates to an improved amine based additive composition for control and inhibition of polymer- ization of aromatic vinyl monomers, particularly of styrene comprising one or more quinone methide compounds, one or more phen- olic compounds and further comprising at least one aliphatic tertiary amine containing —OH group in the alkyl chain. In one embodi - ment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present in- vention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers, particularly of styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.