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, 1980
Filed:
Jun. 21, 1978
Applicant:
Inventors:
Assignee:
Tenneco Chemicals, Inc., Saddle Brook, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
162158 ; 106213 ; 162175 ; 26034674 ;
Abstract
A sizing agent for use in paper-making comprises an aqueous emulsion of at least one compound of the formulae ##STR1## wherein each R.sup.1 represents a hydrophobic group selected from alkyl, alkenyl, aralkyl or aralkenyl groups, where the R.sup.1 groups in either formula may be the same or different and together they contain from 25 to 60 carbon atoms. The sizing agent can be used for either internal or surface sizing, and is effective in the absence of, or in the presence of, a retention aid.