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. 19, 2013
Filed:
Apr. 11, 2011
Leonard W. Harvey, Downingtown, PA (US);
Helen L. Brain, Merseyside, GB;
Susan J. Roberts-bleming, Cheshire, GB;
Lawrence D. Leech, West Chester, PA (US);
Thomas J. Bate, Glenview, IL (US);
Leonard W. Harvey, Downingtown, PA (US);
Helen L. Brain, Merseyside, GB;
Susan J. Roberts-Bleming, Cheshire, GB;
Lawrence D. Leech, West Chester, PA (US);
Thomas J. Bate, Glenview, IL (US);
Whitford Corporation, Elverson, PA (US);
Abstract
Blended fluoropolymer compositions that, in one exemplary application, may be applied as a coating to a substrate and, optionally, may be applied to a substrate that has been previously coated with a primer or basecoat and/or a midcoat. In one embodiment, the composition is a blend of at least one high molecular weight trace modified polytetrafluoroethyelene (TMHPTFE) and at least one melt-processible fluoropolymer (MPF). After being applied to the substrate, optionally over a primer or basecoat and/or midcoat, and then cured, the present compositions form coatings that demonstrate improved abrasion resistance and/or improved release characteristics and/or increased translucency/transparency and/or improved impermeability. The present compositions may also be used to produce films having a high degree of clarity and impermeability. The present compositions in powder form may be melt or paste extruded to form articles with improved impermeability.