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:
Feb. 15, 1977
Filed:
Jul. 20, 1970
Robert E Moore, Wilmington, DE (US);
Abraham Schneider, Overbrook Hills, PA (US);
Sun Oil Company, (Sun Research and Development Co.), Marcus Hook, Pa., US;
Abstract
Alkyladamantanes and/or alkyladamantanols of the C.sub.12 -C.sub.19 range containing 1-3 alkyl groups of the C.sub.1 -C.sub.3 range are converted to hydrocarbon dimers in which two adamantane nuclei are linked to each other through an alkylene radical derived from and having the same number of carbon atoms as an alkyl group of the starting material. The reaction is effected by contacting the starting material with sulfuric acid having a strength in the range of 94-102% H.sub.2 SO.sub.4 in the absence of any other reactant material. When the reactant is a dimethyladamantane or ethyldimethyladamantane or a monool corresponding thereto, ether products in which two adamantane nuclei are joined both through an ether linkage and through a methylene or ethylene radical can also be produced. Some of the linked products are oily liquids while others are normally solid. Usually a small amount of alkyladamantanone is formed. Both the hydrocarbon dimers and ethers have unusually high traction coefficients and are particularly useful as component of traction fluids. These products also have various other uses, such as in coating, investment casting, caulking and potting compositions and as stiffening agents in candles.