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. 25, 2001
Filed:
Oct. 14, 1998
Hsi-Hsin Shih, Taichung, TW;
Chien-Tsung Wu, Taichung, TW;
Shihn-Juh Liou, Changhau, TW;
Yu-Chi Wang, Hsinchu, TW;
Chang-Ming Wong, Hsinchu, TW;
Chi-Chou Huang, Taichung, TW;
Chin-Chin Tsai, Taichung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention provides a method and apparatus for producing a crosslinked foamed article. Such a method comprises the steps of: (a) uniformly mixing at least one crosslinkable resin, at least one crosslinking agent, at least one foaming agent, and some additives into a resin composition; (b) extruding the resin composition through a die into an extrudate of a predetermined shape; and (c) heating the extrudate to a temperature sufficient to cause crosslinking and foaming of the crosslinkable resin while being driven by a driving device to move in the extruding direction, thereby obtaining a crosslinked foamed article. By means of the present invention, the resin extrudate can progress smoothly through the heater or the mold.