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. 01, 2005
Filed:
Feb. 13, 2003
Iain Montgomery, Bergen op Zoom, NL;
Peter James Zuber, Pittsfield, MA (US);
Iain Montgomery, Bergen op Zoom, NL;
Peter James Zuber, Pittsfield, MA (US);
General Electric Company, Pittsfield, MA (US);
Abstract
An molding apparatus useful for molding polymer compositions includes a substrate; a first insulating layer having an electrical resistivity of at least about 10ohm-centimeters and thermal conductivity of about 0.2 to about 5 watts/(meter-kelvin); a heating element; a second insulating layer having an electrical resistivity of at least about 10ohm-centimeters and a thermal conductivity of at least about 5 watts/(meter-kelvin); and a first molding layer having a specific heat capacity of about 100 to about 2,500 joules/(kilogram-kelvin), and optionally, a second molding layer. The apparatus provides rapid heating and cooling of the mold surface. The apparatus may be employed for rapidly molding articles having desirable surface characteristics.