The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 1998
Filed:
Jun. 19, 1997
Toshiharu Suzuki, Aichi, JP;
Tatsuhiko Ozaki, Aichi, JP;
Hirokazu Matsueda, Aichi, JP;
Yorikazu Tamura, Kanagawa, JP;
Tsuneo Hagiwara, Kanagawa, JP;
Takemoto Yushi Kbushiki Kaisha, Aichi, JP;
Teijin Seiki Co., Ltd., Osaka, JP;
Abstract
A plastic mold is produced by first repeating the process of forming a layer of a photocurable resin composition of a specified kind and exposing it to actinic radiation to at least partially photocure it to produce a photocured layered structure having a glass transition temperature of 70.degree.-120.degree. C. This structure is then subjected to a post-cure process at a temperature high than the glass transition temperature by 30.degree.-100.degree. C. Plastic molds made by this method have superior heat distortion temperature and tensile elastic modulus.