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. 10, 1981
Filed:
Mar. 12, 1979
Takeo Saegusa, Kyoto, JP;
Akira Yamada, Osaka, JP;
Masaaki Iwase, Takarazuka, JP;
Akitoshi Iwatani, Suita, JP;
Daikin Kogyo Co., Ltd., Osaka, JP;
Abstract
A fluorine-containing polyester which comprises essentially as the constituting units (a) a group of the formula: ##STR1## wherein Rf is a perfluoroalkyl group having 8 to 21 carbon atoms and n is an integer of 0 or 1 and (b) a group of the formula: ##STR2## wherein R is one of the groups represented by the formulas: ##STR3## wherein R.sub.1 to R.sub.6 is each a hydrogen atom or a lower alkyl group, R.sub.1 and R.sub.3 being optionally combined together at the terminal carbon atoms to form a cyclic ring, X is a halogen atom or a lower alkyl group and m is an integer of 0 to 4, and is useful as a water and oil-repelling agent or a non-sticking agent.