Title:
ウレタンプレポリマー組成物
Document Type and Number:
Japanese Patent JP7413927
Kind Code:
B2
Abstract:
To provide an urethane prepolymer composition that contains an urethane prepolymer contributing to formation of polyurethane having large tensile breaking strength, has a long usable time and is excellent in coating stability, and has high productivity, and, polyurethane excellent in transparency and the tensile strength obtained by using an urethane polymer composition solution containing the urethane prepolymer and is excellent in the coating appearance.SOLUTION: An urethane prepolymer composition (G) comprising an urethane prepolymer (F), an urethane catalyst (C) containing a metal component, and a low molecular weight polyol (D) that is in the range of molecular weight from 62 to 700, the urethane prepolymer (F) is a reaction product of at least polyol (A) and polyisocyanate (B), and contains an alkylene oxide residue of 3 or more carbons that has at least one hydroxyl group in one molecule, and has a weight average molecular weight of 3000 or larger, and an unsaturated group of 0.010 meq/g or smaller, as constituent components, furthermore, contains any one kind or more of a tetramethylene-ether residue, a sugar moiety of 6 or more carbons, and aromatic amine residue as a constituent element.SELECTED DRAWING: None
Inventors:
Yoshihisa Shimizu
Toshio Ohhama
Yasushi Otani
Toshio Ohhama
Yasushi Otani
Application Number:
JP2020091359A
Publication Date:
January 16, 2024
Filing Date:
May 26, 2020
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08G18/48; C08G18/08; C08G18/10; C08G18/22; C08G18/32
Domestic Patent References:
| JP2016176068A | ||||
| JP2019104901A | ||||
| JP2009155393A | ||||
| JP9157344A | ||||
| JP2009084433A | ||||
| JP2001501241A | ||||
| JP2020076011A |
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