Title:
ACRYLATE-BASED COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/027640
Kind Code:
A1
Abstract:
The present invention is a composition which comprises (A) one or more compounds selected from (meth)acrylate-modified silicone oils, long-chain-alkyl (meth)acrylates, and polyalkylene glycol (meth)acrylates, (B) a (meth)acrylate compound including an alicyclic hydrocarbon group bonded through an ester linkage, (C) (meth)acrylic acid or a (meth)acrylate compound having a polar group, (D) a free-radical polymerization initiator, and (E) fine silica-based particles having an average particle diameter of 0.1-500 µm or silica-based fibers having an average fiber diameter and a fiber length of 0.1-500 µm each, the content of component (E) being 5-500 parts by mass per 100 parts by mass of the sum of components (A), (B), and (C). This composition is suitable for use as a raw material for encapsulants. The composition gives a cured object which, in a thermal shock test, prevents the gold wires from developing a breakage failure and which can scatter the light emitted by the optical semiconductor, while retaining heat resistance and adhesion on the conventional levels.
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Inventors:
IWASAKI TAKESHI (JP)
OGAWA DAICHI (JP)
YAMASAKI HAYATO (JP)
OBATA YUTAKA (JP)
TAKEBE TOMOAKI (JP)
FUJIOKA TOYOZO (JP)
MURAKAMI TOMOYOSHI (JP)
OGAWA DAICHI (JP)
YAMASAKI HAYATO (JP)
OBATA YUTAKA (JP)
TAKEBE TOMOAKI (JP)
FUJIOKA TOYOZO (JP)
MURAKAMI TOMOYOSHI (JP)
Application Number:
PCT/JP2012/070763
Publication Date:
February 28, 2013
Filing Date:
August 15, 2012
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
IWASAKI TAKESHI (JP)
OGAWA DAICHI (JP)
YAMASAKI HAYATO (JP)
OBATA YUTAKA (JP)
TAKEBE TOMOAKI (JP)
FUJIOKA TOYOZO (JP)
MURAKAMI TOMOYOSHI (JP)
IWASAKI TAKESHI (JP)
OGAWA DAICHI (JP)
YAMASAKI HAYATO (JP)
OBATA YUTAKA (JP)
TAKEBE TOMOAKI (JP)
FUJIOKA TOYOZO (JP)
MURAKAMI TOMOYOSHI (JP)
International Classes:
C08F290/04; H01L31/02; H01L33/56
Domestic Patent References:
| WO2011016356A1 | 2011-02-10 |
Foreign References:
| JP2007281250A | 2007-10-25 | |||
| JP2006093672A | 2006-04-06 | |||
| JP2006179804A | 2006-07-06 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
Download PDF:
Claims:
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