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Title:
RADICAL-CURABLE HOT-MELT URETHANE RESIN COMPOSITION AND MOLDINGS FOR OPTICAL USE
Document Type and Number:
WIPO Patent Application WO/2012/096111
Kind Code:
A1
Abstract:
A radical-curable hot-melt urethane resin composition which comprises a (meth)acryloyl-containing hot-melt urethane (X) and a radical polymerization initiator (Y), wherein the urethane (X) is an isocyanate-terminated hot-melt urethane prepolymer (C) which is obtained by reacting a polyol (A) that comprises an aliphatic polycarbonate polyol (a1), an alicyclic polycarbonate polyol (a2), or an aliphatic polyether polyol (a3) with an alicyclic polyisocyanate (B) and in which more than 50 to 100 mol% of the total isocyanate groups are modified by the introduction of (meth)acryloyl groups with an active-hydrogen-containing (meth)acrylate compound (D). The radical polymerization initiator (Y) is contained in an amount of 0.5 to 5.0 parts by mass relative to 100 parts by mass of the urethane (X).

Inventors:
KANAGAWA YOSHINORI (JP)
HIGUCHI DAICHI (JP)
SAKAMOTO TAMOTSU (JP)
Application Number:
JP2011/079626
Publication Date:
July 19, 2012
Filing Date:
December 21, 2011
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
KANAGAWA YOSHINORI (JP)
HIGUCHI DAICHI (JP)
SAKAMOTO TAMOTSU (JP)
International Classes:
C08F299/06; C08G18/67; C09J4/00
Foreign References:
JP2010180328A2010-08-19
JP2011208097A2011-10-20
JP2008169319A2008-07-24
Attorney, Agent or Firm:
KONO MICHIHIRO (JP)
Michihiro Kono (JP)
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Claims: