公开(公告)号：CA534711A

公开(公告)日：1956-12-18

申请号：CA534711D

Applicant: SHELL DEV

Inventor： PETERSON WALTER H ,  STROSS FRED H

公开(公告)号：CA536896A

公开(公告)日：1957-02-05

申请号：CA536896D

Applicant: SHELL DEV

Inventor： STROSS FRED H ,  PETERSON WALTER H ,  ABRAMS STANLEY T

IPC: C10M169/00

Abstract: A lubricating composition comprises a major proportion of a lubricating oil, thickened by a synthetic inorganic gelling agent which is an inorganic compound containing an alkaline earth metal and silicon or is a mixture of an inorganic compound of an alkaline earth metal and an inorganic compound of silicon. The inorganic compound contains between 2 and 25 per cent. by weight of the alkaline earth metal. Compounds mentioned are alkaline earth (i.e. Be, Mg, Ca, Sr and Ba) silicates with or without silica or alkaline earth metal oxides or hydroxides, mixtures of silica with alkaline earth metal oxides or hydroxides, synthetic zeolites and synthetic montmorillonites. A water-repelling agent which may be a cationic, anionic or non-ionic surface active agent may be included in the compositions. Surface-active agents mentioned are quaternary ammonium salts, amine salts of organic or inorganic acids, ammonia or amine condensation products, higher fatty acids, phosphonic and phosphinic acids, dicarboxylic acids, amino acids, sulphonic acids, naphthenic acids and these acids which have been chlorinated, sulphurised or phosphorised; esters of fatty and hydroxy fatty acids, monohydric and polyhydric alcohols, ethers of polyhydric alcohols, mercapto compounds and polyvalent metal salts of high molecular weight organic acids; many examples of these classes of compounds are given. The cationic surface-active agents may be treated with phosphorus; sulphur- or silicon-containing oxy-acids. The lubricating oil may be a mineral oil or a synthetic oil such as oxyalkylene polymers, silicone fluids, organic phosphates, polymerized olefins and esters, examples of which are given. The gels containing alkaline earth metal compounds may be improved by reaction with alkali metal hydroxide fluorides or silicates or with alkali metal monohydrogen phosphates. Various methods for the preparation of the greases are described. In one example, a magnesium silicate gel is dried to form a xerogel which is heated with potassium hydroxide at 250 DEG C. for 48 hours. The product is washed, dispersed in water and treated with 60 per cent. by weight of dimethyldiheptadecylammonium chloride. The aminogel thus formed is dispersed in mineral lubricating oil, water eliminated and the composition milled to form a grease. Specifications 697,670 and 706,772 are referred to.

公开(公告)号：CA495272A

公开(公告)日：1953-08-11

申请号：CA495272D

Applicant: SHELL DEV

Inventor： STROSS FRED H ,  TAYLOR MARION D ,  DEAHL THOMAS J

公开(公告)号：CA472846A

公开(公告)日：1951-04-10

申请号：CA472846D

Applicant: SHELL DEV

Inventor： ANDERSON ALVIN P ,  STROSS FRED H