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1. (WO2018011182) THERMALLY EXPANDABLE THERMOPLASTIC MICROSPHERES AND PROCESS FOR THEIR PREPARATION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/011182    International Application No.:    PCT/EP2017/067349
Publication Date: 18.01.2018 International Filing Date: 11.07.2017
Chapter 2 Demand Filed:    09.05.2018    
IPC:
B01J 13/06 (2006.01), B01J 13/14 (2006.01), B01J 13/16 (2006.01), C01B 33/146 (2006.01), B01D 39/04 (2006.01)
Applicants: AKZO NOBEL CHEMICALS INTERNATIONAL B.V. [NL/NL]; Velperweg 76 NL-6824 BM Arnhem (NL)
Inventors: NYHOLM, Christina; (SE).
RESTORP, Per Anders; (SE).
TÖRNCRONA, Anders; (SE).
BERGENUDD, Helena; (SE).
SUNDBLOM, Andreas; (SE).
ANDREASSON, Bo; (SE)
Agent: AKZO NOBEL CHEMICALS IP GROUP; Velperweg 76 6824 BM Arnhem (NL)
Priority Data:
16179524.0 14.07.2016 EP
Title (EN) THERMALLY EXPANDABLE THERMOPLASTIC MICROSPHERES AND PROCESS FOR THEIR PREPARATION
(FR) MICROSPHÈRES THERMOPLASTIQUES EXPANSIBLES THERMIQUEMENT ET LEUR PROCÉDÉ DE PRÉPARATION
Abstract: front page image
(EN)The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic microspheres, expanded microspheres and their use in the manufacture of products.
(FR)La présente invention concerne un procédé de production des microsphères thermoplastiques expansibles thermiquement Le procédé consiste à fournir un mélange de matériaux monomères appropriés pour la polymérisation pour former un polymère thermoplastique et au moins un agent d'expansion, à fournir au mélange une silice colloïdale qui est modifiée en surface avec au moins des groupes organosilanes hydrophobes et à former une émulsion. On effectue une polymérisation pour former les microsphères thermoplastiques expansibles thermiquement. L'invention concerne en outre des microsphères thermoplastiques expansibles thermiquement, des microsphères expansées et leur utilisation dans la fabrication de produits.
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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)