IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0631880
(2000-08-02)
|
| 우선권정보 |
IT-0001756 (1999-08-04) |
|
발명자
/ 주소 |
- Giuseppe Marchionni IT
- Ugo De Patto IT
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
Arent Fox Kintner Plotkin & Kahn
|
| 인용정보 |
피인용 횟수 :
14 인용 특허 :
10 |
초록
▼
Perfluoropolyether lubricants containing sulphonylfluoride groups pending along the perfluoropolyether chain and having the following formula: [EQU1]wherein:T are end groups selected from -CF2X (X.dbd.F,CF3Cl), -C3F7, -COF, -CF(CF3)COF, -CF2COF, -CF2COCF3;d,e,f,h are integers; a,b,c can be zero or i
Perfluoropolyether lubricants containing sulphonylfluoride groups pending along the perfluoropolyether chain and having the following formula: [EQU1]wherein:T are end groups selected from -CF2X (X.dbd.F,CF3Cl), -C3F7, -COF, -CF(CF3)COF, -CF2COF, -CF2COCF3;d,e,f,h are integers; a,b,c can be zero or integers; said units are statistically distributed along the chain, being a+b+c+d+e+f+h such that the number average molecular weight ranges from 500 to 5.times.105, preferably from 1,000 to 50,000.
대표청구항
▼
1. Perfluoropolyether lubricants containing sequences of oxyperfluoroalkylene units, characterized by the presence of sulphonylfluoride groups pending along the perfluoropolyether chain and having the following formula: [EQU7]wherein:T are end groups selected from -CF2X (X.dbd.F,CF3,Cl), -C3F7, -COF
1. Perfluoropolyether lubricants containing sequences of oxyperfluoroalkylene units, characterized by the presence of sulphonylfluoride groups pending along the perfluoropolyether chain and having the following formula: [EQU7]wherein:T are end groups selected from -CF2X (X.dbd.F,CF3,Cl), -C3F7, -COF, -CF(CF3)COF, -CF2COF, -CF2COCF3; d,e,f,h are integers; a,b,c can be zero or integers; said units are statistically distributed along the chain being a+b+c+d+e+f+h such that the number average molecular weight ranges from 500 to 5.times.105.
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