Organo tin compound
US3991091A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1974 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Apr 26, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organo-tin compound, useful as an antiwear additive to fuels or lubricants, is obtained by polymerization of isobutylene in the presence of stannic chloride in a solvent. PAC CROSS REFERENCES TO RELATED APPLICATIONS This is a division, of application Ser. No. 381,634 filed July 23, 1973. This application is a continuation-in-part of Ser. No. 135,295 filed Apr. 19, 1971, Ser. No. 144,165 filed May 17, 1971 (now U.S. Pat. No. 3,715,313 issued Feb. 6, 1973), and Ser. No. 152,303 filed June 11, 1971, now U.S. Pat. No 3,793,203, the entire disclosure of said applications being incorporated herein by reference. Also incorporated herein by reference is the entire disclosure of U.S. Pat. No. 3,411,369 issued Nov. 19, 1968, U.S. Pat. No. 3,440,894 issued Apr. 29, 1969, U.S. Pat. No. 3,597,358 issued Aug. 3, 1971, U.S. Pat. No. 3,595,796 issued July 27, 1971, U.S. Pat. No. 3,595,797 issued July 27, 1971, U.S. Pat. No. 3,598,740 issued Aug. 10, 1971, U.S. Pat. No. 3,608,385 issued Sept. 28, 1971 and U.S. Pat. No. 3,648,531 issued Mar. 14, 1972, all of which disclose tractive or friction drives in which the present polar compounds can be used as lubricants per se or as base oils and tractiv…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.