Title:
METHOD OF MOLDING OPTICAL MEMBER
Document Type and Number:
Japanese Patent JP2014172390
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an injection molding method suitable for an optical lens excellent in transparency.SOLUTION: In molding an alicyclic-structure-containing resin composition comprising an alicyclic-structure-containing resin and a rubber polymer by an injection molding machine by means of a method of molding an optical member, the temperatures of the middle and front parts of a cylinder for supplying a resin into a mold through a nozzle are set, respectively, between the glass transition temperature of the alicyclic-structure-containing resin+70°C and the glass transition temperature of the alicyclic-structure-containing resin+110°C and between the glass transition temperature of the alicyclic-structure-containing resin+130°C and the glass transition temperature of the alicyclic-structure-containing resin+200°C.
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Inventors:
NISHIOKA HIROYA
UMEDA KENJI
UMEDA KENJI
Application Number:
JP2013050075A
Publication Date:
September 22, 2014
Filing Date:
March 13, 2013
Export Citation:
Assignee:
NIPPON ZEON CO
International Classes:
B29C45/78; B29C45/00; G02B1/04; G02B3/00; B29K9/00; B29K45/00; B29L11/00
Domestic Patent References:
| JPH08165354A | 1996-06-25 | |||
| JP2004295977A | 2004-10-21 |
Foreign References:
| WO2012114608A1 | 2012-08-30 |