|
| US4107141 | 10 oct. 1975 | 15 août 1978 | | Method of preparing phenolamine resins |
| US4157309 | 30 sept. 1977 | 5 juin 1979 | Chevron Research Company | Mannich base composition |
| US4175044 | 30 sept. 1977 | 20 nov. 1979 | Chevron Research Company | Mannich base composition and lubricating oil compositions containing same |
| US4178259 | 1 mai 1978 | 11 déc. 1979 | Chevron Research Company | Dispersant Mannich base compositions |
| US4828742 | 24 juil. 1987 | 9 mai 1989 | Exxon Chemical Patents, Inc. | Lactone-modified, mannich base dispersant additives useful in oleaginous compositions |
| US4913830 | 9 janv. 1989 | 3 avr. 1990 | Exxon Chemical Patents Inc. | Lactone-modified, mannich base dispersant additives useful in oleaginous compositions |
| US5166439 | 24 nov. 1989 | 24 nov. 1992 | Ethyl Petroleum Additives, Inc. | Composition containing a mannich base of a partially sulfurized hindered phenol mixture |
| US5498809 | 22 mai 1995 | 12 mars 1996 | Exxon Chemical Patents Inc. | Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives |
| US5554310 | 9 juin 1994 | 10 sept. 1996 | Exxon Chemical Patents Inc. | Trisubstituted unsaturated polymers |
| US5663130 | 11 mars 1996 | 2 sept. 1997 | Exxon Chemical Patents Inc | Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives |
| US5811379 | 17 juin 1996 | 22 sept. 1998 | Exxon Chemical Patents Inc. | Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers and additives and use thereof (PT-1267) |
| US5814111 | 6 août 1996 | 29 sept. 1998 | Shell Oil Company | Gasoline compositions |
| US6030930 | 14 mai 1997 | 29 févr. 2000 | Exxon Chemical Patents Inc | Polymers derived from ethylene and 1-butene for use in the preparation of lubricant disperant additives |
| US6066603 | 21 juil. 1997 | 23 mai 2000 | Exxon Chemical Patents Inc. | Polar monomer containing copolymers derived from olefins useful as lubricant and useful as lubricant and fuel oil additivies process for preparation of such copolymers and additives and use thereof |
| US6172015 | 21 juil. 1999 | 9 janv. 2001 | Exxon Chemical Patents, Inc | Polar monomer containing copolymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such copolymers and additives and use thereof |
| US6468948 | 21 juil. 1999 | 22 oct. 2002 | Infineum USA L.P. | Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers and additives and use thereof (PT-1267) |
