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:
Dec. 28, 1993
Filed:
Aug. 30, 1991
Applicant:
Inventors:
Larry D Olson, Viroqua, WI (US);
Maureen D Burkhardt, Onalaska, WI (US);
Henry R Johnson, West Salem, WI (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428272 ; 428273 ; 428280 ; 428285 ; 428287 ; 428413 ; 428417 ; 428901 ; 428902 ;
Abstract
A laminate which has improved dimensional stability may be prepared by impregnating a reinforcing substrate such as a woven glass cloth with an epoxy resin system having a relatively high molecular weight, in excess of about 850, in the presence of a curing agent followed by curing, pressing and post-baking substrate to form the desired laminate board. The variation in this dimensional stability can also be improved by utilizing a B-stage substrate which has been cured to a lower flow percentage.