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:
Aug. 08, 1989
Filed:
Nov. 29, 1983
Applicant:
Inventor:
Tomio Minobe, Niiza-shi, Saitama-pref., JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 / ; 264 25 ;
Abstract
A method of heating polyvinyl chloride (PVC) using microwaves which is suitable for application in a process for producing PVC film or sheet. The microwave energy is applied to the PVC after the temperature of the PVC has been raised to the point that its intermolecular bonding force has weakened and molecular vibration occurs readily. As a result, uniform heating is obtained throughout the PVC with high energy utilization efficiency.