Title:
IONICALLY HYDROPHILIZED POLYISOCYANATES WITH IMPROVED DRYING
Document Type and Number:
WIPO Patent Application WO/2020/014971
Kind Code:
A1
Abstract:
A polyisocyanate mixture comprising a polyisocyanate component A) having aliphatically and/or cycloaliphatically bonded isocyanate groups and a polyisocyanate component B) having araliphatically and/or aromatically bonded isocyanate groups, characterized in that the polyisocyanate component A)comprises at least 0.85% by weight of sulfonate groups (calculated as SO 3; molar weight = 80 g/mol) in chemically bonded form and the proportion of the polyisocyanate component B) is 7 to 43% by weight of the total amount of the components A) and B). Also provided the use thereof and coating compositions comprising the polyisocyanate mixture, and the substrates coated with these coating compositions.
Inventors:
XU NA (CN)
LAAS HANS-JOSEF (DE)
IRLE CHRISTOPH (DE)
ROSALES EVA TEJADA (ES)
YANG LING (CN)
LAAS HANS-JOSEF (DE)
IRLE CHRISTOPH (DE)
ROSALES EVA TEJADA (ES)
YANG LING (CN)
Application Number:
PCT/CN2018/096488
Publication Date:
January 23, 2020
Filing Date:
July 20, 2018
Export Citation:
Assignee:
COVESTRO DEUTSCHLAND AG (DE)
XU NA (CN)
XU NA (CN)
International Classes:
C08G18/75; C08G18/73; C08G18/76; C08J3/00; C08L75/00; C09D175/04
Foreign References:
| US20040034162A1 | 2004-02-19 | |||
| CN105949436A | 2016-09-21 | |||
| US5652300A | 1997-07-29 | |||
| US5468804A | 1995-11-21 | |||
| CN104448232A | 2015-03-25 | |||
| US5563207A | 1996-10-08 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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