Copolymers of ethylene with vinyl monomers, methods of their production and application |
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| 申请号 | US43282874 | 申请日 | 1974-01-14 | 公开(公告)号 | US3859220A | 公开(公告)日 | 1975-01-07 |
| 申请人 | SAMOILOV SERGEI MIKHAILOVICH; PLATE NIKOLAI ALFREDOVICH; MALTSEV VADIM VASILIEVICH; MONASTYRSKY VIKTOR NIKOLAEVICH; KARGIN VALENTIN ALEXE; | 发明人 | SAMOILOV SERGEI MIKHAILOVICH; PLATE NIKOLAI ALFREDOVICH; MALTSEV VADIM VASILIEVICH; MONASTYRSKY VIKTOR NIKOLAEVICH; KARGIN VALENTIN ALEXE; | ||||
| 摘要 | Copolymers of ethylene with vinyl monomers, which are derivatives of vinyltin of the general formula CH2 CHSnR1R2R3, where R1, R2, R3 are the same or different radicals: alkyls with the number of carbon atoms from one to six, or phenyl, the content of (-CH2-CH(SnR1R2R3)-) links in the copolymer being 1-30 mol.%, and that of (-CH2-CH2-) links, 99-70 mol.%. Said copolymers are produced by a method which consists in copolymerizing ethylene with derivatives of vinyltin of the above-specified general formula, at a molar ratio of ethylene to organovinyltin monomers equal to 20-98:80-2 respectively, under a pressure of 50-3000 atm, at a temperature of 50-300*C, in the presence of initiators of free-radical type. The copolymers thus produced can be used as antiwear additions to lubricants. | ||||||
| 权利要求 | 1. A LUBRICANT COMPOSITION WHICH COMPRISES A MAJOR AMOUNT OF A LUBRICATING OIL AND AN ETHYLENE-VINYLTIN COPOLYMER IN AMOUNT SUFFICIENT TO IMPART ANTIWEAR PROPERTIES, SAID COPOLYMER CONTAINING A MOLAR RATIO OF ETHYLENE TO VINYLTIN OF 20-98:80-2 AND SAID VINYLTIN HAVING THE FORMULA CH2=CHSN R1R2R3 WHERE R1, R2 AND R3 ARE RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL CONTAINING ONE TO SIX CARBON ATOMS AND PHENYL. |
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