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:
Jun. 13, 1978
Filed:
Jun. 06, 1977
Applicant:
Inventors:
Peter Franklin Humphreys, Great Sutton, EN;
Edwin Willis, Bromborough, EN;
Assignee:
Lever Brothers Company, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
252131 ; 252 90 ; 252132 ; 252134 ; 252174 ; 252D / ;
Abstract
The invention relates to a method of incorporating zinc oxide into a detergent bar. In order to avoid grittiness in the bar the zinc oxide is slurried in an aqueous or organic liquid before it is added to the detergent material. Preferably the zinc oxide used has a particle size distribution such that not more than about 5% by weight of the oxide is held on a 10 micron sieve and not more than about 3% by weight is held on a 30 micron sieve. The invention is particularly applicable to the production of superfatted bars.