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:
May. 07, 1996
Filed:
Feb. 27, 1995
Applicant:
Inventors:
Geoffrey P Marks, Banbury, GB;
William F Marwick, Daventry, GB;
Assignee:
Alcan International Limited, , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; C08K / ;
U.S. Cl.
CPC ...
10628716 ; 427384 ; 428433 ; 428449 ;
Abstract
An aqueous composition for the treatment of surfaces such as metals particularly aluminum, comprises a tetraalkyl silicate or a monomeric or oligomeric hydrolysis product thereof, and an inorganic passenger powder below 100 nm diameter such as fumed silica, both in dispersion in a fluid aqueous medium. The composition can be applied as a conversion coating to improve the adhesion of subsequently applied paint, lacquer or adhesive. Non-aqueous intermediate products comprising the silicate component and passenger powder can be diluted with water to make the coating composition.