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:
Apr. 13, 1982
Filed:
Mar. 19, 1980
Applicant:
Inventors:
Gary E Geiger, Philadelphia, PA (US);
Roger C May, Glenside, PA (US);
Assignee:
Betz Laboratories, Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ; C23F / ; C23F / ;
U.S. Cl.
CPC ...
2523 / ; 106 1411 ; 106 1412 ; 106 1413 ; 106 1414 ; 106 1421 ; 210749 ; 252 / ; 2523 / ; 252181 ; 422 14 ; 422 15 ; 422 16 ; 422 17 ; 422 18 ; 422 19 ;
Abstract
A composition is disclosed comprising a stable aqueous solution of (i) water-soluble zinc compound, (ii) water-soluble chromate compound and (iii) a particular type of water-soluble polymer composed essentially of moieties derived from acrylic acid and hydroxylated lower alkyl acrylates. The composition could additionally comprise (iiii) orthophosphate.