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:
Jan. 28, 1986
Filed:
Mar. 08, 1985
Applicant:
Inventor:
Fred L Jackson, Littleton, CO (US);
Assignee:
Manville Service Corporation, Denver, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
523218 ; 162165 ; 162172 ; 1621816 ; 523219 ; 524 13 ; 524 14 ;
Abstract
A novel economical hardboard is provided which comprises (a) about 1-40 wt % of a porous additive having a particle size in the range of about 0.1-2 mm; (b) about 65-97 wt % of cellulose fibers; (c) about 2-5 wt % binder; and (d) about 1-4 wt % wax. Also provided is an efficient economical process for the production of the above described inventive hardboard comprising the steps of formulating an aqueous mixture of the above ingredients, then dewatering the aqueous mixture, and finally heating the mixture at a temperature and time sufficient to cure the binder.