Title:
OPTICAL LENS COMPRISING AROMATIC-ALIPHATIC POLYCARBONATE RESIN
Document Type and Number:
WIPO Patent Application WO/2012/096410
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an optical lens which comprises an aromatic-aliphatic polycarbonate resin that has a large Abbe number and combines practically sufficient heat resistance with high molding flowability. This optical lens comprises a polycarbonate resin characterized in that the polycarbonate resin comprises constituent units (I) represented by formula (I) and constituent units (II) represented by formula (II), the proportion of the constituent units (II) to the sum of the constituent units (I) and (II) being 55-35 mol%, and that a solution obtained by dissolving 0.7 g of the polycarbonate resin in 100 mL of methylene chloride has a specific viscosity measured at 20ºC of 0.12-0.298.
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Inventors:
SHIGEMATSU TERUYUKI (JP)
MATSUI MANABU (JP)
TANDO KAZUSHI (JP)
NUNOME KAZUNORI (JP)
MATSUI MANABU (JP)
TANDO KAZUSHI (JP)
NUNOME KAZUNORI (JP)
Application Number:
PCT/JP2012/051009
Publication Date:
July 19, 2012
Filing Date:
January 12, 2012
Export Citation:
Assignee:
TEIJIN CHEMICALS LTD (JP)
SHIGEMATSU TERUYUKI (JP)
MATSUI MANABU (JP)
TANDO KAZUSHI (JP)
NUNOME KAZUNORI (JP)
SHIGEMATSU TERUYUKI (JP)
MATSUI MANABU (JP)
TANDO KAZUSHI (JP)
NUNOME KAZUNORI (JP)
International Classes:
G02B1/04; C08G64/16; G02B5/18
Foreign References:
| JP2002293911A | 2002-10-09 | |||
| JP2002090501A | 2002-03-27 | |||
| JP2003090901A | 2003-03-28 |
Attorney, Agent or Firm:
OHSHIMA, Masataka (JP)
Masataka Oshima (JP)
Masataka Oshima (JP)
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Claims:
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