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. 23, 2003
Filed:
Jun. 26, 2001
Applicant:
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/024 ; C08F / ; C08F / ; C09K 3/18 ; D06M 1/5277 ;
U.S. Cl.
CPC ...
C08F 2/024 ; C08F / ; C08F / ; C09K 3/18 ; D06M 1/5277 ;
Abstract
A water and oil repellent aqueous dispersion is provided which is excellent in water and oil repellency and waterdrop rolling property and has dispersion stability even in the presence of co-agents and contaminants in the treatment bath. A preparative process comprises emulsifying a stock composition containing a polymerizable monomer containing a (meth)acrylate having perfluoroalkyl group as an essential component, a non-fluorine type surfactant containing no aromatic group, water and a solvent having a viscosity of at least 3 cP at 25° C. under pressure and polymerizing the stock composition.