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1. (WO2017195934) THERMOPLASTIC POLYURETHANE HAVING CROSS-LINKING SITE, AND CROSS-LINKING FOAMING METHOD USING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2017/195934    International Application No.:    PCT/KR2016/008182
Publication Date: 16.11.2017 International Filing Date: 27.07.2016
IPC:
C08L 75/04 (2006.01), C08G 18/42 (2006.01), C08G 18/72 (2006.01), C08G 18/34 (2006.01), C08J 9/04 (2006.01), C08J 3/24 (2006.01)
Applicants: DONGSUNG CORPORATION [KR/KR]; (Sinpyeong-dong) 99, Sinsan-ro Saha-gu Busan 49421 (KR)
Inventors: NAM, Sang Chul; (KR).
LEE, Sang Yun; (KR).
HAN, Dae Sang; (KR).
UM, Gi Yong; (KR).
BAE, Jong Woo; (KR).
SHIN, Jin Ho; (KR).
KIM, Seong-Hye; (KR)
Agent: STY PATENT LAW FIRM; (Choryang-dong, Kukje Officetel) 12F, 1211, 263, Jungang-daero Dong-gu Busan 48792 (KR)
Priority Data:
10-2016-0057655 11.05.2016 KR
Title (EN) THERMOPLASTIC POLYURETHANE HAVING CROSS-LINKING SITE, AND CROSS-LINKING FOAMING METHOD USING SAME
(FR) POLYURÉTHANE THERMOPLASTIQUE PRÉSENTANT UN SITE DE RÉTICULATION, ET PROCÉDÉ D’EXPANSION PAR RÉTICULATION UTILISANT LEDIT POLYURÉTHANE THERMOPLASTIQUE
(KO) 가교 사이트가 부여된 열가소성 폴리우레탄 및 이를 이용한 가교 발포 방법
Abstract: front page image
(EN)The present invention relates to a thermoplastic polyurethane composition having a cross-linking site, characterized in that foam can be prepared in a conventional EVA cross-linking foaming system by using a thermoplastic polyurethane having a cross-linking site provided in the molecules of a polyol and a chain extender. Since a thermoplastic polyurethane having a cross-linking site provided in the molecules of a polyol and a chain extender are used, the present invention has a melt viscosity facilitating processing, which is a process of low-temperature processing to which a conventional EVA cross-linking foaming system is applied, at a processing temperature of approximately 130°C or lower, and thus there are effects of having smooth mixing with a cross-linking agent, a foaming agent and various additives, facilitating, by means of the cross-linking site provided in the molecules of a polyol and a chain extender, the formation of foam cells during cross-linking foaming through press molding or injection molding, exhibiting excellent mechanical properties, and enabling foam having various ranges of viscosity according to the amount of a foaming agent to be manufactured.
(FR)La présente invention concerne une composition de polyuréthane thermoplastique présentant un site de réticulation, caractérisée en ce que la mousse peut être préparée dans un système d’expansion par réticulation d’EVA classique à l'aide d'un polyuréthane thermoplastique présentant un site de réticulation se trouvant dans les molécules d’un polyol et d’un extenseur de chaîne. Dans la mesure où un polyuréthane thermoplastique présentant un site de réticulation se trouvant dans les molécules d’un polyol et d’un extenseur de chaîne sont utilisés, la présente invention présente une viscosité à l’état fondu facilitant le traitement, qui est un procédé de traitement à basse température auquel un système d’expansion par réticulation d’EVA classique est appliqué, à une température de transformation d’approximativement 130 °C ou moins, et ainsi il y a des effets de mélange uniforme avec un agent de réticulation, un agent d’expansion et divers additifs, facilitant, au moyen du site de réticulation se trouvant dans les molécules d’un polyol et d’un extenseur de chaîne, la formation d’alvéoles de mousse pendant l’expansion par réticulation par moulage par compression ou moulage par injection, faisant preuve d’excellentes propriétés mécaniques, et permettant d’obtenir une mousse présentant diverses plages de viscosités selon la quantité d’agent d’expansion à fabriquer.
(KO)본 발명은 폴리올, 쇄연장제의 분자 내에 가교 사이트(Site)를 부여시킨 열가소성 폴리우레탄을 이용하여 기존의 EVA 가교 발포시스템에서 발포체 제조가 가능한 것을 특징으로 하는 가교 사이트가 부여된 열가소성 폴리우레탄 조성물에 관한 것으로, 폴리올, 쇄연장제의 분자 내에 가교 사이트를 부여한 열가소성 폴리우레탄을 사용하여 기존의 EVA 가교 발포 시스템을 적용한 저온 발포 가공 공정인 약 130℃ 이하의 가공온도에서 가공이 용이한 용융점도를 가지므로 가교제, 발포제 및 각종 첨가제와의 혼련이 원활하고, 프레스 성형 또는 사출 성형을 통해 가교 발포시 폴리올, 쇄연장제의 분자 내 부여된 가교 사이트에 의해, 발포 셀(Cell) 형성이 용이하고 기계적 물성이 우수하고, 발포제의 사용량에 따라 다양한 비중 영역의 발포체 제조가 가능한 효과가 있다.
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, 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, KN, KP, 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: Korean (KO)
Filing Language: Korean (KO)