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. 18, 2014
Filed:
May. 01, 2012
Bin Wang, Kingsport, TN (US);
Thauming Kuo, Kingsport, TN (US);
Douglas Stephens Mcwilliams, Piney Flats, TN (US);
Frank W. Harris, Boca Raton, FL (US);
Ted Calvin Germroth, Kingsport, TN (US);
Jiaokai Jing, Uniontown, OH (US);
Dong Zhang, Uniontown, OH (US);
Xiaoliang Zheng, Hudson, OH (US);
Bin Wang, Kingsport, TN (US);
Thauming Kuo, Kingsport, TN (US);
Douglas Stephens McWilliams, Piney Flats, TN (US);
Frank W. Harris, Boca Raton, FL (US);
Ted Calvin Germroth, Kingsport, TN (US);
Jiaokai Jing, Uniontown, OH (US);
Dong Zhang, Uniontown, OH (US);
Xiaoliang Zheng, Hudson, OH (US);
Akron Polymer Systems, Inc., Akron, OH (US);
Abstract
A method for casting a styrenic fluoropolymer film on a substrate includes preparing a polymer solution by dissolving the fluoropolymer in a solvent or solvent blend whose Hansen solubility parameters (HSPs. MPa) satisfy the following relations: |SP−SP|<5, |SP−SP|<4, |SP−SP|<7, and 2<|SP−SP|<10 wherein SP, SP, SP, are the total Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; SP, SP, and, SPare the hydrogen-bond Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; wherein the fluoropolymer comprises a moiety of: wherein R, R, and Rare each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R, R, and Ris a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring.