Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POLYURETHANE PREPOLYMER, ADHESIVE AND SYNTHETIC IMITATION LEATHER
Document Type and Number:
WIPO Patent Application WO/2019/221090
Kind Code:
A1
Abstract:
A polyurethane prepolymer obtained by reacting polyols with a polyisocyanate, wherein: the polyols comprise 30 mass% or more of polyether polyol (A), 30 mass% or more of polyester polyol (B) having an isophthalic acid-derived structure and a sebacic acid-derived structure as dibasic acid-derived partial structures, and 20 mass% or less of polyester polyol (C) having a sebacic acid-derived structure alone as a dibasic acid-derived partial structure; the number-average molecular weight of polyether polyol (A) is 1100-2400; and the molar ratio of the isocyanate equivalent of the polyisocyanate to the hydroxyl equivalent of the polyols is 2.1 or less.

More Like This:
WO/2016/177515METHOD FOR PRODUCING A MULTILAYERED COATING ON PLASTIC SUBSTRATES
JPH05155962PRODUCTION OF POLYURETHANE PREPOLYMER
JP2002018367WIPING MATERIAL FOR VACUUM CHAMBER AND ITS MANUFACTURING METHOD
Inventors:
KAWAMURA RYO (JP)
SASAKI KAZUYA (JP)
YAMADA TOSHIKI (JP)
Application Number:
PCT/JP2019/019015
Publication Date:
November 21, 2019
Filing Date:
May 14, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
International Classes:
C08G18/10; C08G18/40; C08G18/42; C08G18/48; C08G18/73; C08G18/76; C09J175/06; C09J175/08; D06N3/14
Domestic Patent References:
WO2008065921A12008-06-05
Foreign References:
JP2013043914A2013-03-04
JP2015196768A2015-11-09
JP2007063510A2007-03-15
JP2006273986A2006-10-12
JP2019077817A2019-05-23
JP5563482B22014-07-30
Other References:
See also references of EP 3757143A4
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: PHYTOTOXICITY-REDUCING AGENT

Next Patent: SCALE CLEANING AGENT AND METHOD FOR REMOVING SCALE USING SAID AGENT