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. 16, 1997
Filed:
Sep. 27, 1996
Applicant:
Inventors:
Louis Robert Dragner, Rock Hill, SC (US);
Bernard North, Rock Hill, SC (US);
Assignee:
Sequa Chemicals, Inc., Chester, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ; D21H / ;
U.S. Cl.
CPC ...
162158 ; 162179 ;
Abstract
A chemical composition for use in the papermaking process to produce a paper having enhanced opaqueness is provided. The process using the composition to make the paper and the paper made therefrom are also provided by the present invention. The composition contains an alkyl bis (alkyl amido alkyl)-2-hydroxy alkyl ammonium alkyl salt.
Dragner, Louis. (1997). Method of enhancing the opacity of printing papers and paper produced (U.S. Patent No. 5667638). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5667638
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile