Title:
高屈折率光学樹脂組成物
Document Type and Number:
Japanese Patent JP2004536934
Kind Code:
A
Abstract:
Polymerizable compositions are described comprising: (a) a mixture of thio(meth)acrylate functional monomers comprising: (a)(i) a first thio(meth)acrylate functional monomer, e.g., bis(thiomethacrylate)-1,2-ethylene; and (a)(ii) a second thio(meth)acrylate functional monomer, which is chain extended; (b) an aromatic monomer having at least two vinyl groups, e.g., divinyl benzene; (c) a polythiol monomer having at least two thiol groups, e.g., pentaerythritol tetrakis(3-mercaptopropionate); and (d) a comonomer selected from: (d)(i) an anhydride monomer having at least one ethylenically unsaturated group, e.g., methacrylic anhydride; (d)(ii) a monomer having at least three (meth)acryloyl groups, e.g., pentaerythritol tetrakis(acrylate); and (d)(iii) mixtures of monomers (d)(i) and (d)(ii). A polymerizate of the polymerizable composition has a refractive index of at least 1.57 and an Abbe number of at least 33.
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Inventors:
Smith, Robert A.
Okoro Afour, Michael Oh.
Herold, Robert Dee.
Freeman, Tee. Edwin
Okoro Afour, Michael Oh.
Herold, Robert Dee.
Freeman, Tee. Edwin
Application Number:
JP2003517113A
Publication Date:
December 09, 2004
Filing Date:
July 25, 2001
Export Citation:
Assignee:
Ppee Industries Industries Ohio, Inc.
International Classes:
C08F212/36; C08F220/38; C08F228/02; C08L33/14; G02B1/04; C08F222/24; (IPC1-7): C08F220/38; C08F212/36; C08L33/14; G02B1/04
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita