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:
Apr. 14, 2015
Filed:
Oct. 15, 2009
Julio A. Abusleme, Saronno, IT;
Mattia Bassi, Milan, IT;
Régis Faig, Baverans, FR;
Paolo Toniolo, Cesate, IT;
Julio A. Abusleme, Saronno, IT;
Mattia Bassi, Milan, IT;
Régis Faig, Baverans, FR;
Paolo Toniolo, Cesate, IT;
Solvay Specialty Polymers Italy S.p.A., Bollate, IT;
Abstract
A fluoropolymer composition having a total luminous transmittance (TT) of less than 15%, when measured according to ASTM D1003 on a sample having a thickness of about 50 μm, said composition comprising: at least one hydrogen-containing fluoropolymer [polymer (A)]; from 5 to 80% by weight of (A) of at least one inorganic pigment [pigment (I)]; and from 1 to 99% by weight of (I) of at least one per(halo)fluoropolymer chosen among tetrafluoroethylene (TFE) copolymers having a dynamic viscosity at a shear rate of 1 rad×secof less than 100 Pa×sec at a temperature of 280° C. [polymer (B)]. By adding polymer (B) to the composition based on polymer (A) it is advantageously possible to obtain an even dispersion of the pigment (I) so that a composition possessing outstanding opacity and still being processable under the form of films, so as to provide adequate mechanical properties, can be manufactured therefrom.