Title:
POLYISOCYANATE COMPOSITION AND COATING COMPOSITION USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/181798
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a polyisocyanate composition that enables the achievement of a coating film which is capable of exhibiting excellent coating film strength such as scratch resistance even in cases where a commonly used acrylic polyol is used, and which has excellent weather resistance and excellent adhesion; and a coating composition which uses this polyisocyanate composition as a curing agent. The problem is solved by a polyisocyanate composition which is characterized by containing (A) an urethane reaction product of hexamethylene diisocyanate and a diol that has a cyclic group and a molecular weight of 300 or less and (B) a nurated polyisocyanate which is obtained by nurating hexamethylene diisocyanate at an (A)/(B) ratio within the range of from 10/90 to 60/40 (mass ratio).
Inventors:
TAKAHASHI MASARU (JP)
NAGAOKA TAKESHI (JP)
HORIGUCHI KENJI (JP)
NOGUCHI SHUTO (JP)
NAGAOKA TAKESHI (JP)
HORIGUCHI KENJI (JP)
NOGUCHI SHUTO (JP)
Application Number:
PCT/JP2019/010900
Publication Date:
September 26, 2019
Filing Date:
March 15, 2019
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C08G18/79; C08G18/10; C08G18/32; C08G18/73; C09D175/04
Foreign References:
| JPH01297420A | 1989-11-30 | |||
| JPH0797423A | 1995-04-11 | |||
| JPS6291569A | 1987-04-27 | |||
| JPH08151424A | 1996-06-11 | |||
| JP2002193315A | 2002-07-10 |
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