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Photochromic curable composition
专利权人:
Junji Takenaka;Junji Momoda
发明人:
Junji Takenaka,Junji Momoda
申请号:
US13638101
公开号:
US08663508B2
申请日:
2011.03.28
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A photochromic curable composition comprising 100 parts by mass of polymerizable monomers which include 70 to 100 mass % of polymerizable monomers having two to four (meth)acrylic groups and 0 to 30 mass % of a polymerizable monomer having one (meth)acrylic group and 0.01 to 20 parts by mass of a photochromic compound, whereinthe number of moles of the methacrylic group existent in the polymerizable monomer composition is 3 to 7 times the number of moles of the acrylic group. This composition can provide a lens having a photochromic coating which exhibits excellent photochromic properties, comprises a hard coat layer having sufficiently high adhesion and scratch resistance and has no delay in fading and has excellent storage stability.
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