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:
Jun. 12, 2007
Filed:
Apr. 18, 2005
Daisuke Shirakawa, Yokohama, JP;
Takashi Okazoe, Yokohama, JP;
Kazuya Oharu, Yokohama, JP;
Shu-zhong Wang, Yokohama, JP;
Koichi Murata, Yokohama, JP;
Kengo Kawahara, Yokohama, JP;
Daisuke Shirakawa, Yokohama, JP;
Takashi Okazoe, Yokohama, JP;
Kazuya Oharu, Yokohama, JP;
Shu-zhong Wang, Yokohama, JP;
Koichi Murata, Yokohama, JP;
Kengo Kawahara, Yokohama, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A novel perfluoropolyether derivative which is less likely to undergo decomposition, which is free from a problem of deterioration during its use, and which is useful as a lubricating oil or a coating agent, is provided. A compound represented by the following formula (1):HO—(CHCHO).(CHCH(OH)CHO)—CHCFO(CFCFO)CFCHO——(CHCH(OH)CHO).(CHCHO)—H  Formula (1)wherein m represents an integer of from 3 to 200, and each of p, q, r and s which are independent of one another, represents an integer of from 0 to 100, provided that when each of p, q, r and s which are independent of one another, is an integer of at least 1, the arrangement of —(CHCHO)— and —(CHCH(OH)CHO)— units is not particularly limited, and when one of r and p is an integer of at least 2 and the other is an integer of at least 1, or when one of q and s is an integer of at least 2 and the other is an integer of at least 1, these units may be arranged in a block form or at random.