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:
Oct. 11, 1988
Filed:
Mar. 13, 1987
Applicant:
Inventor:
Douglas J Bridgeford, Champaign, IL (US);
Assignee:
Teepak, Inc., Oak Brook, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 30 ;
Abstract
A polymeric compound comprising crosslinked cellulose aminomethanate wherein 0.5 to 30 numerical percent of the cellulose hydroxy groups have been substituted with aminomethanate groups, each of the crosslinks being formed by a crosslinking agent reacted to connect at least two of the cellulose hydroxy groups, at least two of the aminomethanate groups or at least one each of the hydroxy groups and aminomethanate groups.