Title:
POLYURETHANE RESIN AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/128791
Kind Code:
A1
Abstract:
Disclosed are a polyurethane resin and a preparation method therefor. The present invention solves the problems of the poor heat resistance and poor optical transparency which are generally present in conventional polyurethane resins, in particular polyurethane elastomers. In the preparation method, the polyurethane resin is prepared by reacting an alicyclic diisocyanate composition and a polyol, wherein the content of substance A contained in the alicyclic diisocyanate composition used is controlled at ≤0.5 wt%, and the substance A has the structure of the following general formula (I): (I) wherein R1 is a halogen atom; R2, R3 and R4 are each independently a hydrogen atom, a C1-C8 alkane group or a C3-C8 cycloalkane group; and R5 is an isocyanate group or an isocyanate methyl group.
Inventors:
SHI PEIMENG (CN)
SHANG YONGHUA (CN)
SUN LIDONG (CN)
SUN JIZHAO (CN)
LI JIANFENG (CN)
WANG PENG (CN)
HU HAO (CN)
ZHOU QI (CN)
ZHU FULIN (CN)
SHANG YONGHUA (CN)
SUN LIDONG (CN)
SUN JIZHAO (CN)
LI JIANFENG (CN)
WANG PENG (CN)
HU HAO (CN)
ZHOU QI (CN)
ZHU FULIN (CN)
Application Number:
PCT/CN2020/099737
Publication Date:
July 01, 2021
Filing Date:
July 01, 2020
Export Citation:
Assignee:
WANHUA CHEMICAL NINGBO CO LTD (CN)
WANHUA CHEMICAL GROUP CO LTD (CN)
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
C08G18/75; C08G18/12; C08G18/32; C08G18/48; C08G18/66
Foreign References:
| CN110982038A | 2020-04-10 | |||
| CN110396057A | 2019-11-01 | |||
| US20080228006A1 | 2008-09-18 | |||
| CN101402719A | 2009-04-08 | |||
| US4153777A | 1979-05-08 | |||
| TW201920085A | 2019-06-01 | |||
| CN110511163A | 2019-11-29 | |||
| CN101928235A | 2010-12-29 | |||
| CN103360282A | 2013-10-23 | |||
| CN103382167A | 2013-11-06 |
Other References:
XUE FENG, HUANG SHUHUAI: "Study of Transparent Casting Polyurethane Resin Synthesis and Its Performance", HUAZHONG KEJI DAXUE XUEBAO (ZIRAN KEXUE BAN)/JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (NATURAL SCIENCE EDITION), HUAZHONG KEJI DAXUE, CN, vol. 32, no. 7, 1 July 2004 (2004-07-01), CN, pages 98 - 101, XP055824223, ISSN: 1671-4512, DOI: 10.13245/j.hust.2004.07.034
XUE FENG, HUANG SHU-HUAI: "Thermal and Mechanical Properties of Transparent Casting Polyurethane Resin", GAOFENZI-CAILIAO-KEXUE-YU-GONGCHENG = POLYMER MATERIALS SCIENCE AND ENGINEERING, CHENGDU KEJI DAXUE GAOFENZI YANJIUSUO, CN, vol. 20, no. 4, 1 July 2004 (2004-07-01), CN, pages 214 - 218, XP055824234, ISSN: 1000-7555, DOI: 10.16865/j.cnki.1000-7555.2004.04.055
CHEN YUHONG, LI LEI: "Effect of Raw Materials on Transparency of Polyurethane Elastomer", CHINA ELASTOMERICS, HUAXUE GONGYEBU, HECHENG XIANGJIAO XINXI ZONGZHAN, vol. 12, no. 2, 25 April 2002 (2002-04-25), pages 14 - 18, XP055824236, ISSN: 1005-3174, DOI: 10.16665/j.cnki.issn1005-3174.2002.02.005
XUE FENG, HUANG SHU-HUAI: "Thermal and Mechanical Properties of Transparent Casting Polyurethane Resin", GAOFENZI-CAILIAO-KEXUE-YU-GONGCHENG = POLYMER MATERIALS SCIENCE AND ENGINEERING, CHENGDU KEJI DAXUE GAOFENZI YANJIUSUO, CN, vol. 20, no. 4, 1 July 2004 (2004-07-01), CN, pages 214 - 218, XP055824234, ISSN: 1000-7555, DOI: 10.16865/j.cnki.1000-7555.2004.04.055
CHEN YUHONG, LI LEI: "Effect of Raw Materials on Transparency of Polyurethane Elastomer", CHINA ELASTOMERICS, HUAXUE GONGYEBU, HECHENG XIANGJIAO XINXI ZONGZHAN, vol. 12, no. 2, 25 April 2002 (2002-04-25), pages 14 - 18, XP055824236, ISSN: 1005-3174, DOI: 10.16665/j.cnki.issn1005-3174.2002.02.005
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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