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Title:
URETHANE PREPOLYMER AND CURED URETHANE OBTAINED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2022/224819
Kind Code:
A1
Abstract:
Provided are: a highly transparent urethane prepolymer having excellent curability and contributing to formation of polyurethanes having high strength; and a cured urethane which is highly transparent and has high strength and little surface tack.　The urethane prepolymer is a urethane prepolymer (E) terminated by an active-hydrogen group, the urethane polymer (E) having a C3 or higher, alkylene oxide residue, an aromatic amine residue, and a polyisocyanate residue and a polyol structure locally having an aromatic amine residue at a molecular end.

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Inventors:
SHIMIZU YOSHIHISA (JP)
YAMAMOTO TOSHIHIDE (JP)
Application Number:
PCT/JP2022/017117
Publication Date:
October 27, 2022
Filing Date:
April 05, 2022
Export Citation:
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Assignee:
TOSOH CORP (JP)
International Classes:
C08G18/10; C08G18/32; C08G18/66; C08J5/18
Foreign References:
JP2020158551A2020-10-01
JP2006273973A2006-10-12
JPH11269422A1999-10-05
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