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    HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION
    1.
    发明公开
    HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION 有权
    具有高折射率聚合物共混物

    公开(公告)号：EP1409562A1

    公开(公告)日：2004-04-21

    申请号：EP01955959.0

    申请日：2001-07-25

    申请人： PPG Industries Ohio, Inc.

    发明人： HEROLD, Robert D. ,  OKOROAFOR, Michael O. ,  SMITH, Robert A. ,  GRAHAM, Marvin J.

    IPC分类号： C08F220/38 ,  C08L33/14 ,  G02B1/04

    CPC分类号： G02B1/041 ,  C08F220/38 ,  C08F222/24 ,  C08L33/14 ,  C08L33/12

    摘要： 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; and (b) a radically polymerizable comonomer having at least two (meth)acryloyl groups selected from, for example, (b) (i) ethoxylated bisphenol A dimethacrylate, (b) (ii) poly(ethylene glycol) dimethacrylate, (b) (iii) trimethylolpropane trimethacrylate, and (b)(iv) mixtures of monomers (b) (i), (b) (ii) and (b) (iii). Polymerizates of the polymerizable composition have a refractive index of at least 1.57 and an Abbe number of at least 33.

    METHOD OF PREPARING AN OPTICAL POLYMERIZATE
    3.
    发明授权
    METHOD OF PREPARING AN OPTICAL POLYMERIZATE 有权
    法用于制造光学聚合物

    公开(公告)号：EP1250370B1

    公开(公告)日：2005-06-01

    申请号：EP00979194.8

    申请日：2000-11-18

    申请人： PPG Industries Ohio, Inc.

    发明人： OKOROAFOR, Michael O. ,  SMITH, Robert A. ,  GRAHAM, Marvin J. ,  TABAKOVIC, Rifat ,  HEROLD, Robert D.

    IPC分类号： C08G18/38 ,  G02B1/04 ,  G02B5/23

    CPC分类号： G02B5/23 ,  C08G18/3876 ,  C08G2120/00 ,  G02B1/041 ,  C08L75/04

    摘要： The present invention is directed to a novel method of preparing a polymerizate, which includes the step of polymerizing a two-component composition, which includes: a first component containing at least one polycyanate reactant having at least two functional groups selected from isocyanate, isothiocyanate and combinations thereof, the polycyanate reactant being the reaction product of: a polythiol monomer having at least two thiol groups, and a polycyanate monomer having at least two functional groups selected from isocyanate, isothiocyanate and combinations thereof; and a second component containing at least one polyamine reactant having at least two functional groups selected from primary amine, secondary amine and combinations thereof. The present invention is also directed to polymerizates prepared according to the method of the present invention. The present invention is further directed to photochromic articles that may be prepared from the polymerizates of the present invention.

    HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION
    6.
    发明授权
    HIGH REFRACTIVE INDEX OPTICAL RESIN COMPOSITION 有权
    具有高折射率聚合物共混物

    公开(公告)号：EP1409562B1

    公开(公告)日：2006-04-12

    申请号：EP01955959.0

    申请日：2001-07-25

    申请人： PPG Industries Ohio, Inc.

    发明人： HEROLD, Robert D. ,  OKOROAFOR, Michael O. ,  SMITH, Robert A. ,  GRAHAM, Marvin J.

    IPC分类号： C08F220/38 ,  C08L33/14 ,  G02B1/04

    CPC分类号： G02B1/041 ,  C08F220/38 ,  C08F222/24 ,  C08L33/14 ,  C08L33/12

    摘要： 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; and (b) a radically polymerizable comonomer having at least two (meth)acryloyl groups selected from, for example, (b) (i) ethoxylated bisphenol A dimethacrylate, (b) (ii) poly(ethylene glycol) dimethacrylate, (b) (iii) trimethylolpropane trimethacrylate, and (b)(iv) mixtures of monomers (b) (i), (b) (ii) and (b) (iii). Polymerizates of the polymerizable composition have a refractive index of at least 1.57 and an Abbe number of at least 33.

    SULFUR-CONTAINING OLIGOMERS AND HIGH INDEX POLYURETHANES PREPARED THEREFROM
    7.
    发明公开
    SULFUR-CONTAINING OLIGOMERS AND HIGH INDEX POLYURETHANES PREPARED THEREFROM 有权
    含S低聚物和由其MADE高折射率聚氨酯

    公开(公告)号：EP1960453A2

    公开(公告)日：2008-08-27

    申请号：EP06844929.7

    申请日：2006-12-06

    申请人： PPG Industries Ohio, Inc.

    发明人： BOJKOVA, Nina V. ,  HEROLD, Robert D. ,  MCDONALD, William H. ,  GRAHAM, Marvin J. ,  SMITH, Robert A.

    IPC分类号： C08G75/00 ,  G02B1/00 ,  C08G18/00

    CPC分类号： C08G18/758 ,  C08G18/10 ,  C08G18/1816 ,  C08G18/3876 ,  C08G18/52

    摘要： The present invention provides polythiol oligomer formed by the reaction of at least two or more different dienes and at least one or more dithiol wherein stoichiometric ratio of the sum of the number of equivalents of all polythiols to the sum of the number of equivalents of all dienes used to form said polythiol oligomer is greater than 1.0 : 1.0; and wherein said two or more different dienes comprise (a) at least one non-cyclic diene and at least one cyclic diene; or (b) at least one aromatic ring-containing diene and at least one non-aromatic cyclic diene; or (c) at least one non-aromatic monocyclic diene and at least one non-aromatic polycyclic diene; Sulfur-containing polyurethane of the present invention can be prepared by combining polyisocyanate, polyisothiocyanate, or mixture thereof; the polythiol oligomer described above; and active hydrogen-containing material.