Title:
POLYISOCYANATE COMPOSITION, COATING COMPOSITION INCLUDING SAME, AND PROCESS FOR PRODUCING SAID POLYISOCYANATE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/079428
Kind Code:
A1
Abstract:
Provided are: a polyisocyanate composition obtained through an isocyanuration reaction efficiently conducted without generating any insoluble matter, etc., the composition having excellent storage stability; and a two-pack type coating composition including said polyisocyanate composition as a hardener. Also provided is a production process whereby the color stability of the modified organic polyisocyanate being stored in a diluted state is improved.
The polyisocyanate composition contains isocyanurate groups, and comprises a specific quaternary ammonium salt and a product of the reaction of HDI with a hydroxylated compound having a water/octanol partition coefficient of 0.5 or higher. The production process is for producing a modified organic polyisocyanate and comprises subjecting an organic diisocyanate monomer to isocyanuration or allophanation, and is characterized in that a compound having a phenol structure with steric hindrance which is not 2,6-di-tert-butyl-4-methylphenol is added after producing the modified organic polyisocyanate.
Inventors:
KISHIMOTO RYUSUKE (JP)
TAKAHASHI MASARU (JP)
HORIGUCHI KENJI (JP)
SAITO TEPPEI (JP)
TAKAHASHI MASARU (JP)
HORIGUCHI KENJI (JP)
SAITO TEPPEI (JP)
Application Number:
PCT/JP2017/037963
Publication Date:
May 03, 2018
Filing Date:
October 20, 2017
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C08G18/09; C08G18/18; C08G18/28; C08G18/73; C09D7/40; C09D175/04
Domestic Patent References:
| WO2015093107A1 | 2015-06-25 |
Foreign References:
| JP2016008300A | 2016-01-18 | |||
| JP2014530944A | 2014-11-20 | |||
| US20130109806A1 | 2013-05-02 | |||
| JP2016069497A | 2016-05-09 | |||
| JP2016056242A | 2016-04-21 | |||
| JP2016044264A | 2016-04-04 |
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