Title:
URETHANE (METH)ACRYLATE, ACTIVE ENERGY RAY-CURABLE COMPOSITION AND CURED PRODUCT THEREOF
Document Type and Number:
Japanese Patent JP2017048301
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a urethane (meth)acrylate that is used for use in an optical member used in an electronics field, an optical substrate such as a display substrate or the like and a base material for an adhesive sheet used for fixing a component, attaching a member and the like and has not only high elongation but also high elastic modulus while having characteristics such as abrasion resistance, scratch resistance, chemical resistance, flexibility and the like inherent to a urethane (meth)acrylate, to provide a composition containing the urethane (meth)acrylate as a curing component, and to provide a cured product of the composition.SOLUTION: The urethane (meth)acrylate is a urethane (meth)acrylate of formula (I), includes a low molecular weight diol having a molecular weight of 300 or less and a high molecular weight diol having a molecular weight exceeding 300 and has a content of the low molecular weight diol having a molecular weight of 300 or less of 1.0 to 5.0 wt% based on the total constitutional units of the urethane (meth)acrylate.SELECTED DRAWING: None
Inventors:
FUJIHARA KOJI
Application Number:
JP2015172172A
Publication Date:
March 09, 2017
Filing Date:
September 01, 2015
Export Citation:
Assignee:
DAICEL-ALLNEX CO LTD
International Classes:
C08G18/67; C08F290/06; C08G18/65; C08G18/66
Attorney, Agent or Firm:
Yukihisa Goto