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:
Aug. 26, 2025
Filed:
Oct. 08, 2019
Tosoh Corporation, Shunan, JP;
Kota Sakaguchi, Yokkaichi, JP;
Tomoya Shimono, Yokkaichi, JP;
Tomonari Nagai, Yokkaichi, JP;
Kazunari Iwanaga, Yokkaichi, JP;
Shohei Yumino, Yokkaichi, JP;
Masao Tanabiki, Yokkaichi, JP;
Toru Doi, Yokkaichi, JP;
TOSOH CORPORATION, Shunan, JP;
Abstract
A fluororesin including a residue unit of formula (1) and having a haze value equal to 2% or less of a heat-press molded product (thickness 1 mm) with a small haze value of a melt-molded product and a method for producing the same. Rf, Rf, Rfand Rfeach independently represent one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, and a cyclic perfluoroalkyl group having 3 to 7 carbon atoms, the perfluoroalkyl group may have an ethereal oxygen atom, Rf, Rf, Rfand Rfmay be linked to each other to form a ring having 4 or more and 8 or less carbon atoms, and the ring may include an ethereal oxygen atom.