Title:
PHOTOCURABLE URETHANE GEL-STATE BODY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/157430
Kind Code:
A1
Abstract:
[Problem] To obtain a photocurable urethane gel-state body that: through a first-stage cure, is in a gum state and exhibits a self-molding behavior of conforming to the shape of a use surface; and through a second-stage photocure, provides a high-hardness polyurethane that has retained the self-molded shape as such. [Solution] The present invention relates to a photocurable urethane gel-state body that is a photocurable gel-state body comprising at least (A) a photocurable composition containing a multifunctional urethane (meth)acrylate and a photopolymerization initiator, and (B) a polyurethane, wherein photocurable composition (A) : polyurethane (B) is in the range of 25 : 75 to 55 : 45 as the mass ratio and the multifunctional urethane (meth)acrylate does not have residual hydroxyl groups. The present invention further relates to a method for producing this photocurable urethane gel-state body.
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Inventors:
MUKAI YASUO (JP)
KOYAMA ATSUSHI (JP)
KOYAMA ATSUSHI (JP)
Application Number:
PCT/JP2022/045010
Publication Date:
August 24, 2023
Filing Date:
December 07, 2022
Export Citation:
Assignee:
TAISEI KOGYO CO LTD (JP)
International Classes:
C08F299/06; C08G18/08; C08G18/67; C08L75/04
Domestic Patent References:
| WO2017038244A1 | 2017-03-09 |
Foreign References:
| JP2016147969A | 2016-08-18 | |||
| JP2015520242A | 2015-07-16 | |||
| JP2010516824A | 2010-05-20 | |||
| US20180194890A1 | 2018-07-12 | |||
| JP2016127091A | 2016-07-11 | |||
| JP2009120663A | 2009-06-04 |
Attorney, Agent or Firm:
MEBUKI IP LAW FIRM et al. (JP)
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