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:
Feb. 02, 1993
Filed:
Jul. 19, 1991
Applicant:
Inventors:
Herbert I Scher, Pikesville, MD (US);
Israel S Ungar, Randallstown, MD (US);
Richard R Baehr, Jr, Annapolis, MD (US);
Assignee:
Nevamar Corporation, Odenton, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 26 ; 264 73 ; 264145 ; 264148 ; 264216 ; 264236 ; 264347 ; 26433118 ; 2643 / ; 4251 / ; 425224 ; 425445 ; 425 75 ;
Abstract
A method and apparatus for continuous casting of polymerizable materials that shrink during polymerization includes rapidly heating a moving matrix substantially uniformly throughout its cross section by radio frequency energy to initiate polymerization and maintaining the matrix thereafter in substantial thermal isolation such that substantially adiabatic polymerization occurs.