Title:
MANUFACTURE OF PLASTIC MOLDED PRODUCT
Document Type and Number:
Japanese Patent JP3130099
Kind Code:
B2
Abstract:
PURPOSE: To provide the manufacturing method for a plastic molded product of high accuracy in which resin can be plasticized and deformed in a short time and a mirror face is transferred thereon.
CONSTITUTION: The temperature of a thermoplastic matrix processed preliminarily into the final shape is set at the load deflection temperature or over and also at the glass transition point or under, and compression force is applied by an optical part compression molding die with at least one mirror face, plasticized and deformed, and the mirror face is transferred.
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Inventors:
Hisaaki Koseko
Application Number:
JP34567191A
Publication Date:
January 31, 2001
Filing Date:
December 27, 1991
Export Citation:
Assignee:
株式会社リコー
International Classes:
B29C71/00; B29C43/02; B29C43/52; B29C59/02; B29D11/00; B29L11/00; (IPC1-7): B29C43/02; B29C59/02
Domestic Patent References:
| JP57187232A | ||||
| JP6295205A | ||||
| JP4366612A | ||||
| JP4163119A |
Attorney, Agent or Firm:
Gunichiro Ariga