Title:
CURABLE RESIN COMPOSITION, AND COMPOSITION FOR HARD COAT
Document Type and Number:
WIPO Patent Application WO/2015/045823
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a curable resin composition and a composition for a hard coat, each of which contains hard inorganic microparticles such as silica and zirconia at a high concentration, in which dispersion stability is excellent and various properties of a cured film produced from each of the compositions can become good without requiring the treatment of the surfaces of the inorganic microparticles or the use of a dispersing agent.
A curable resin composition comprises an alkylene oxide-modified dipentaerythritol (meth)acrylate which has structures respectively represented by general formulae (I) and (II) and surface-untreated inorganic microparticles which are dispersed in the alkylene oxide-modified dipentaerythritol (meth)acrylate and have an average particle diameter of 1 to 150 nm, wherein the content ratio of the inorganic microparticles relative to the total weight of the composition is 10 to 45% by weight and the content of a solvent is 1% by weight or less.
In the formulae, L expresses the average polymerization degree of an alkylene oxide chain and represents more than 0 and 5 or less (0 < L ≤ 5); the average value of m is more than 0 and 6 or less; L×m expresses the average number of moles of an alkylene oxide added and represents more than 0 and 5 or less (0 < L×m ≤ 5); n represents 1 or 2; the average value of o is 0 to 5 inclusive; the sum total of m, n and o is 6; and R2 represents a hydrogen atom or a methyl group.
Inventors:
TAKAMURA NAOHIRO (JP)
Application Number:
PCT/JP2014/073618
Publication Date:
April 02, 2015
Filing Date:
September 08, 2014
Export Citation:
Assignee:
DAI ICHI KOGYO SEIYAKU CO LTD (JP)
International Classes:
C08F2/44; C08F20/28; C09D4/02; C09D7/61
Domestic Patent References:
| WO2013129173A1 | 2013-09-06 |
Foreign References:
| JP2013075409A | 2013-04-25 | |||
| JPS6261049A | 1987-03-17 | |||
| JP2012106240A | 2012-06-07 |
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