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. 10, 2012
Filed:
Jun. 10, 1998
Jas P. S. Badyal, Wolsingham, GB;
Stephen Richard Coulson, Oxfordshire, GB;
Colin R. Willis, Andover, GB;
Stuart A. Brewer, Fyfield, GB;
Jas P. S. Badyal, Wolsingham, GB;
Stephen Richard Coulson, Oxfordshire, GB;
Colin R. Willis, Andover, GB;
Stuart A. Brewer, Fyfield, GB;
Abstract
A method of coating a surface with a polymer layer, which method comprises exposing said surface to a plasma comprising a monomeric unsaturated organic compound which comprises a chain of carbon atoms, which are optionally substituted by halogen; provided that where the compound is a perhalogenated alkene, it has a chain of at least 5 carbon atoms; so as to form an oil or water repellent coating on said substrate. Suitable compounds for use in the methods are compounds of formula (I) where R, Rand Rare independently selected from hydrogen, alkyl, haloalkyl or aryl optionally substituted by halo; provided that at least one of R, Ror Ris hydrogen, and Ris a group X—Rwhere Ris an alkyl or haloalkyl group and X is a bond; a group of formula —C(O)O(CH)Y— where n is an integer of from 1 to 10 and Y is a bond or a sulphonamide group; or a group —(O)R(O)(CH)— where Ris aryl optionally substituted by halo, p is 0 or 1, q is 0 or 1 and t is 0 or an integer of from 1 to 10, provided that where q is 1, t is other than 0. The method is particularly useful in the production of oil- and/or water repellent fabrics.