Tractants comprising linear dimers of -alkyl styrene
Patent 3975278 Issued on August 17, 1976. Estimated Expiration Date: 
August 17, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 17, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3440894 3577361 3595796 3608385 InventorApplicationNo. 549231 filed on 02/12/1975US Classes:476/7, WITH FRICTION ENHANCING FLUID585/1, PRODUCT BLEND, E.G., COMPOSITION, ETC., OR BLENDING PROCESS PER SE585/25, Plural rings585/27Of differing carbon content or with bridgeExaminersPrimary: Pitlick, Harris A.Attorney, Agent or FirmInternational ClassC10M 171/00 (20060101)AbstractDimers of -alkyl styrene consisting of linear dimers with up to about 20% of cyclic dimers are substantially completely hydrogenated to improve the coefficient of traction of the dimers and to yield a composition comprising a major proportion of compounds having the general structure ##EQU1## wherein each R is an alkyl of 1 to 4 carbon atoms. These compositions are liquids which have good viscosity properties over a wide temperature range, have excellent oxidative stability, and are particularly useful as tractive fluids in applications requiring low temperature operability.Field of SearchOrganic components |
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