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:
Jul. 23, 2002
Filed:
Feb. 24, 1998
Toyoda Gosei Co., Ltd., Aichi-ken, JP;
Abstract
To provide a method for producing a molded crystalline resin article which enables a higher crystallization degree and to mass-produce the molded crystalline resin articles. The method comprises molding a molded resin article from a thermoplastic resin containing a crystalline resin followed by performing a heating process to obtain a molded crystalline resin article having a surface layer whose crystallization index is 0.9 or higher when determined by IR spectrometry. It is preferable that the temperature of the heating process is within the range of 20° C. lower than the crystallization temperature of the molded resin article to 30° C. higher than the crystalline temperature, and that the crystalline resin is a polypropylene resin.