Title:
放射線硬化性樹脂組成物
Document Type and Number:
Japanese Patent JP7139432
Kind Code:
B2
Abstract:
There is provided a radiation-curable resin composition for formation of a primary covering layer, the radiation-curable resin composition being able to form a cured layer having excellent flexibility and adequate mechanical strength.A radiation-curable resin composition for formation of a primary covering layer of an optical fiber, comprising a urethane oligomer, a polymerization initiator and a free-radically polymerizable non-urethane monomer, the urethane oligomer being the reaction product of a polyether-based urethane prepolymer and an isocyanate reactive compound containing one active hydrogen group, the isocyanate reactive compound containing an aliphatic alcohol and an ethylenic unsaturated group-containing isocyanate reactive compound, and the aliphatic alcohol content in the isocyanate reactive compound being 24 mol% or higher.
Inventors:
Nobuyasu Shinohara
Seiichiro Takahashi
Seiichiro Takahashi
Application Number:
JP2020539651A
Publication Date:
September 20, 2022
Filing Date:
August 30, 2019
Export Citation:
Assignee:
Nippon Special Coating Co., Ltd.
International Classes:
C03C25/326; C03C25/25; C03C25/6226; C08F290/06; C08G18/10; C08G18/28; C08G18/48; C08G18/67
Domestic Patent References:
| JP2016040216A | ||||
| JP2012111674A | ||||
| JP2004043626A | ||||
| JP2014006344A | ||||
| JP2018077303A | ||||
| JP2017007896A | ||||
| JP2015219271A | ||||
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| JP2010235812A | ||||
| JP2010280558A |
Attorney, Agent or Firm:
Makoto Ono
Kanayama Sage
Kazuki Shigemori
Hidehiko Ichikawa
Yoshie Sakurada
Youichi Iino
Kanayama Sage
Kazuki Shigemori
Hidehiko Ichikawa
Yoshie Sakurada
Youichi Iino