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:
Sep. 12, 1978
Filed:
Nov. 01, 1977
Applicant:
Inventors:
Francis J McGarry, Thompson, CT (US);
Donald Greene, Danielson, CT (US);
Jeffrey B Otto, Brooklyn, CT (US);
Assignee:
Rogers Corporation, Rogers, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F / ; D21J / ; D21J / ;
U.S. Cl.
CPC ...
162123 ; 100 38 ; 100 / ; 162206 ; 162225 ; 264113 ;
Abstract
A high density insulating board is produced by a process which includes forming a wet multi-ply board of fibrous material, substantially free of resin, on the roll of a wet cylinder machine, drying the board, placing the dry board in a press, and then hot pressing the board at a differential temperature of about 15.degree. to about 40.degree. F across the board for at least 30 seconds.