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. 18, 1988
Filed:
Dec. 02, 1986
Applicant:
Inventors:
Michael J Garvey, Wirral, GB;
Ian C Griffiths, Wirral, GB;
Assignee:
Unilever Patent Holdings B.V., Rotterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423335 ; 423338 ; 423339 ;
Abstract
This invention relates to novel silica spheroids and to their production by a phase separation technique in which an aqueous alkaline stabilized silica sol and an aqueous solution of a non-adsorbing polymer are mixed and acidified to produce the new silica spheroids.