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:
Jun. 09, 2015
Filed:
Dec. 08, 2010
Leonard W. Harvey, Downington, PA (US);
Helen L. Brain, Merseyside, GB;
Thomas J. Bate, Glenview, IL (US);
Anita K. Peacock, Cheshire, GB;
Susan J. Roberts-bleming, Cheshire, GB;
Leonard W. Harvey, Downington, PA (US);
Helen L. Brain, Merseyside, GB;
Thomas J. Bate, Glenview, IL (US);
Anita K. Peacock, Cheshire, GB;
Susan J. Roberts-Bleming, Cheshire, GB;
Whitford Corporation, Elverson, PA (US);
Abstract
Fluoropolymer compositions that include multiple fluoropolymer components and, in exemplary applications, may be applied as coatings to either rigid or flexible substrates. The compositions may themselves be applied as basecoats or overcoats, or may be combined with other components to formulate basecoats or overcoats. In one embodiment, the compositions include at least one low molecular weight polytetrafluoroethylene (LPTFE) and at least two chemically different melt processible fluoropolymers (MPF). In another embodiment, the compositions include at least one high molecular weight polytetrafluoroethylene (HPTFE), at least one low molecular weight polytetrafluoroethylene (LPTFE), and at least two chemically different melt processible fluoropolymers (MPF). After being applied to a substrate, optionally over a basecoat and/or a midcoat and then cured, the present compositions form coatings that demonstrate improved characteristics, such as improved release characteristics, abrasion resistance, translucency/transparency, and permeability, for example.