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:
Mar. 06, 1990
Filed:
Aug. 31, 1988
David R Stewart, Richmond, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A thermoplastic laminated billet is made by dielectrically heating a stack of thermoplastic layers within a mold press, wherein the sequence of dielectrically heatable and non-heatable individual layers is such that no more than a tie layer separates a heatable and non-heatable layer so that only that portion of the non-heatable layer nearest the heatable layer or layer melts. The laminated billet is formed within the mold press that has electrodes formed therein, the electrodes capable of impressing on the dielectrically heatable layers used to form the laminated billet sufficient energy to melt the heatable layers and at least a portion of the adjacent non-heatable layers.