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:
Feb. 22, 2022
Filed:
Dec. 08, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Alain Verschuere, Melsele, BE;
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
A composition comprising at least one fluoropolymer and at least one solvent, wherein the solvent comprises a branched, partially fluorinated ether and wherein the partially fluorinated ether corresponds to the formula:CF—O—CHwherein q is an integer from 1 to and 5 and p is an integer from 5 to 11; and wherein the fluoropolymer is a copolymer comprising at least 90% by weight (based on the total weight of the polymer, which is 100% by weight) of units derived from tetrafluoroethene (TFE) and one or more perfluorinated alkyl ethers selected from ethers corresponding to the general formulaR—O—(CF)—CF═CFwherein n is 1 in which case the ether is an allyl ether, or 0 in which case the ether is a vinyl ether and Rrepresents a perfluoroalkyl residue which may be interrupted once or more than once by an oxygen atom. Also provided are methods of preparing the compositions and methods for coating substrate with the compositions.