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:
Nov. 01, 1983
Filed:
Jan. 25, 1982
Wolfgang J Wrasidlo, La Jolla, CA (US);
Karol J Mysels, La Jolla, CA (US);
Brunswick Corporation, Skokee, IL (US);
Abstract
A hydrophilic surface can be provided on a hydrophobic polymer surface by contacting the hydrophobic surface with a solution of a hydroxyalkyl cellulose and a perfluorocarbon surfactant in water or a mixture of water and one or more aliphatic alcohols so as to form a layer of the solution on the hydrophobic surface and then heating the surface coated with the layer so as to remove the solvent, so as to form a bond between the cellulose and the hydrophobic surface. This results in the formation of a hydrophilic surface coating a layer on the hydrophobic surface. Hydrophilic surfaces as are created in this manner are primarily intended to be utilized on polysulfone surfaces in semipermeable membranes such as are utilized in micro- and ultra-filtration.