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:
Nov. 09, 1993
Filed:
Nov. 22, 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 ; 264148 ; 264216 ; 264236 ; 264347 ; 264 85 ; 264166 ; 4251744 ; 4251 / ; 425224 ;
Abstract
A method and apparatus for continuous casting of polymerizable thermosetting materials comprises mixing the materials with controlled amounts of two or more catalyst groups and passing said mixture through two or more series of heating stages. The initially gelled mixture which has not yet undergone excessive shrinkage is mechanically isolated from the ungelled mixture.