公开(公告)号：CA2194952A1

公开(公告)日：1997-07-17

申请号：CA2194952

申请日：1997-01-13

Applicant: LUBRIZOL CORP

Inventor： SCHARF CURTIS R ,  RICHARDSON ROBERT C ,  ROELL BERNARD C JR

IPC: C10M161/00 ,  C10M167/00 ,  C10M169/04 ,  C10N30/02 ,  C10N30/08 ,  C10N40/04 ,  C10N40/06 ,  C10M111/02 ,  C10M107/02 ,  C10M143/00

Abstract: This invention relates to a lubricating composition comprising at least about 30% by weight at least one mineral oil, having a kinematic viscosity of less than about 8 cSt at 100.degree.C, (A) from about 15% to about 40% by weight of at least one polymer, and (B) up to about 30% by weight of at least one fluidizing agent, provided that when the fluidizing agent is a poly.alpha.-olefin having a kinematic viscosity from about 2 to about 30 cSt at 100.degree.C, then the poly.alpha.-olefin is present in an amount up to about 12% by weight, wherein the lubricating composition has a shear loss of less than about 15% in the 20 hour taper bearing shear test. The invention also relates to concentrates used in preparing lubricating compositions. The present combination of components provides good low and high temperature properties especially when used in combination with one or more mineral oils. In one aspect, the compositions provide improved oxidation resistance.

公开(公告)号：FI96869C

公开(公告)日：1996-09-10

申请号：FI902176

申请日：1990-04-30

Applicant: LUBRIZOL CORP

Inventor： VINCI JAMES N ,  SCHARF CURTIS R

IPC: C10M141/08 ,  C10M141/10 ,  C10M163/00 ,  C10M173/00 ,  C10M177/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/00 ,  C10N40/22 ,  C10N70/00

公开(公告)号：FI96869B

公开(公告)日：1996-05-31

申请号：FI902176

申请日：1990-04-30

Applicant: LUBRIZOL CORP

Inventor： VINCI JAMES N ,  SCHARF CURTIS R

IPC: C10M141/08 ,  C10M141/10 ,  C10M163/00 ,  C10M173/00 ,  C10M177/00 ,  C10N10/02 ,  C10N10/04 ,  C10N20/04 ,  C10N30/00 ,  C10N40/22 ,  C10N70/00

Abstract: Nitrogen containing carboxylic compounds useful in reducing hydrogen sulfide are described herein. The compositions of the invention also desirably contain an alkali or alkaline earth metal containing compound.

公开(公告)号：BR9500987A

公开(公告)日：1995-10-31

申请号：BR9500987

申请日：1995-03-27

Applicant: LUBRIZOL CORP

Inventor： SCHARF CURTIS R ,  TWINING STEVEN R ,  TODD PATRICIA R

IPC: C10M119/02 ,  C10M119/06 ,  C10M119/12 ,  C10M123/04 ,  C10M123/06 ,  C10N10/02 ,  C10N10/04 ,  C10N10/06 ,  C10N20/00 ,  C10N50/10 ,  C10M119/10

Abstract: A grease of an oil of lubricating viscosity, a polyolefin having grafted acid functionality, a metallic species capable of interacting with the acid functionality of said polyolefin to cause association among the acid groups and a co-thickening agent, has improved rheological properties. The co-thickening agent and the metallic species can together comprise a gelled overbased material, particularly an over-based carboxylate.

公开(公告)号：AU1505495A

公开(公告)日：1995-10-12

申请号：AU1505495

申请日：1995-03-24

Applicant: LUBRIZOL CORP

Inventor： SCHARF CURTIS R ,  TWINING STEVEN R ,  TODD PATRICIA R

IPC: C10M119/02 ,  C10M119/06 ,  C10M119/12 ,  C10M123/04 ,  C10M123/06 ,  C10N10/02 ,  C10N10/04 ,  C10N10/06 ,  C10N20/00 ,  C10N50/10 ,  C10M143/12 ,  C10M161/00

Abstract: A grease of an oil of lubricating viscosity, a polyolefin having grafted acid functionality, a metallic species capable of interacting with the acid functionality of said polyolefin to cause association among the acid groups and a co-thickening agent, has improved rheological properties. The co-thickening agent and the metallic species can together comprise a gelled overbased material, particularly an over-based carboxylate.

公开(公告)号：SG174894G

公开(公告)日：1995-05-12

申请号：SG174894

申请日：1994-12-15

Applicant: LUBRIZOL CORP

Inventor： VINCI JAMES N ,  SCHARF CURTIS R

IPC: C10M129/10 ,  C10M129/34 ,  C10M129/54 ,  C10M133/16 ,  C10M133/52 ,  C10M135/02 ,  C10M135/10 ,  C10M141/08 ,  C10M141/10 ,  C10M163/00

公开(公告)号：AU608702B2

公开(公告)日：1991-04-11

申请号：AU3214389

申请日：1988-12-14

Applicant: LUBRIZOL CORP

Inventor： SCHARF CURTIS R

IPC: C10M143/08 ,  C08F4/06 ,  C08F4/12 ,  C08F4/14 ,  C08F10/00 ,  C08F210/14 ,  C08L23/18 ,  C10M143/00 ,  C10M143/06 ,  C10M161/00 ,  C10N30/02 ,  C10N40/04

Abstract: This invention deals with viscosity improvers which are obtained through the use of a mixed catalyst system comprising a tertiary organo halide and a Lewis acid catalyst.

公开(公告)号：AU606326B2

公开(公告)日：1991-02-07

申请号：AU6779587

申请日：1987-12-05

Applicant: LUBRIZOL CORP

Inventor： HAYASHI KATSUMI ,  HOPKINS ROBERTT ,  SCHARF CURTIS R

IPC: C08F20060101 ,  C08F8/32 ,  C08F285/00 ,  C08F287/00 ,  C08G81/00 ,  C08G81/02 ,  C08L51/00 ,  C08L53/00 ,  C08L53/02 ,  C10M129/00 ,  C10M143/12 ,  C10M145/10 ,  C10M149/14 ,  C10M159/12 ,  C10N20/02 ,  C10N20/04 ,  C10N30/02 ,  C10N30/04

公开(公告)号：AU594738B2

公开(公告)日：1990-03-15

申请号：AU6772987

申请日：1986-12-12

Applicant: LUBRIZOL CORP

Inventor： HAYASHI KATSUMI ,  SCHARF CURTIS R ,  HOPKINS THOMAS ROBERT

IPC: C10M145/10 ,  C08F285/00 ,  C08F287/00 ,  C10M143/12 ,  C10M149/06 ,  C10M149/18 ,  C10M149/22 ,  C10M159/12 ,  C10N30/02 ,  C10N30/04 ,  C10N40/00 ,  C10N40/25 ,  C10N70/00 ,  C08F8/32 ,  C08K5/17 ,  C08F8/46 ,  C08C19/22 ,  C08C19/28

Abstract: Oil-soluble compositions, useful as dispersant viscosity modifiers, are formed by the reaction product of an acylating product (D) a (F) polyamine, and a (G) mono-functional acid. The compositions can be prepared in solvent such as a hydrocarbon oil or in the absence of a solvent.

公开(公告)号：ES2003992A6

公开(公告)日：1988-12-01

申请号：ES8603501

申请日：1986-12-18

Applicant: LUBRIZOL CORP

Inventor： HAYASHI KATSUMI ,  SCHARF CURTIS R ,  HOPKINS T ROBERT

IPC: C08F20060101 ,  C08F8/32 ,  C08F285/00 ,  C08F287/00 ,  C08G81/00 ,  C08G81/02 ,  C08L51/00 ,  C08L53/00 ,  C08L53/02 ,  C10M129/00 ,  C10M143/12 ,  C10M145/10 ,  C10M149/14 ,  C10M159/12 ,  C10N20/02 ,  C10N20/04 ,  C10N30/02 ,  C10N30/04

Abstract: LAS COMPOSICIONES QUE SON UTILES COMO ADITIVOS PARA ACEITES SE PREPARAN EN UN DISOLVENTE O EN UN SISTEMA SIN DISOLVENTE POR REACCION DE (B) UN REACTIVO ACIDO CARBOXILICO INSATURADO CON (A) UN COPOLIMERO DE BLOQUE HIDROGENADO EN PRESENCIA DE (C) INICIADORES DE RADICALES LIBRES. EL PRODUCTO DE REACCION FORMADO (D) PUEDE REACCIONAR ADEMAS CON (E) UN COMPUESTO QUE CONTIENE AMINAS PRIMARIAS EN UN DISOLVENTE O EN UN SISTEMA SIN DISOLVENTE.