CA991792A - Continuous process for the manufacture of oil soluble ethylene-propylene copolymers for use in petroleum products - Google Patents

Continuous process for the manufacture of oil soluble ethylene-propylene copolymers for use in petroleum products

Info

Publication number
CA991792A
CA991792A CA159,132A CA159132A CA991792A CA 991792 A CA991792 A CA 991792A CA 159132 A CA159132 A CA 159132A CA 991792 A CA991792 A CA 991792A
Authority
CA
Canada
Prior art keywords
manufacture
continuous process
oil soluble
propylene copolymers
petroleum products
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA159,132A
Other versions
CA159132S (en
Inventor
Thomas E. Johnston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of CA991792A publication Critical patent/CA991792A/en
Expired legal-status Critical Current

Links

CA159,132A 1971-12-22 1972-12-14 Continuous process for the manufacture of oil soluble ethylene-propylene copolymers for use in petroleum products Expired CA991792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21083071A 1971-12-22 1971-12-22

Publications (1)

Publication Number Publication Date
CA991792A true CA991792A (en) 1976-06-22

Family

ID=22784421

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,132A Expired CA991792A (en) 1971-12-22 1972-12-14 Continuous process for the manufacture of oil soluble ethylene-propylene copolymers for use in petroleum products

Country Status (1)

Country Link
CA (1) CA991792A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372863A (en) 1977-04-13 1983-02-08 Exxon Research & Engineering Co. Oil compositions containing oil-soluble, oxidatively and mechanically degraded ethylene copolymers
US4749505A (en) * 1985-07-08 1988-06-07 Exxon Chemical Patents Inc. Olefin polymer viscosity index improver additive useful in oil compositions
EP1632504A2 (en) 2004-08-27 2006-03-08 Polimeri Europa S.p.A. Ethylene-propylene copolymers with an improved shape stability suitable for modifying lubricating oils and process for the preparation thereof
WO2007093446A1 (en) 2006-02-16 2007-08-23 Polimeri Europa S.P.A. Ethylene-propylene copolymers suitable for the modification of lubricating oils and process for the preparation thereof
IT202200025962A1 (en) 2022-12-19 2024-06-19 Versalis Spa CONTINUOUS PROCEDURE FOR THE REDUCTION OF THE MOLECULAR WEIGHT OF ETHYLENE COPOLYMERS AND TERPOLYMERS.
IT202200025956A1 (en) 2022-12-19 2024-06-19 Versalis Spa ADDITIVES FOR IMPROVING THE VISCOSITY INDEX OF LUBRICATING OILS AND PROCEDURE FOR THEIR PREPARATION.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372863A (en) 1977-04-13 1983-02-08 Exxon Research & Engineering Co. Oil compositions containing oil-soluble, oxidatively and mechanically degraded ethylene copolymers
US4749505A (en) * 1985-07-08 1988-06-07 Exxon Chemical Patents Inc. Olefin polymer viscosity index improver additive useful in oil compositions
EP1632504A2 (en) 2004-08-27 2006-03-08 Polimeri Europa S.p.A. Ethylene-propylene copolymers with an improved shape stability suitable for modifying lubricating oils and process for the preparation thereof
WO2007093446A1 (en) 2006-02-16 2007-08-23 Polimeri Europa S.P.A. Ethylene-propylene copolymers suitable for the modification of lubricating oils and process for the preparation thereof
IT202200025962A1 (en) 2022-12-19 2024-06-19 Versalis Spa CONTINUOUS PROCEDURE FOR THE REDUCTION OF THE MOLECULAR WEIGHT OF ETHYLENE COPOLYMERS AND TERPOLYMERS.
IT202200025956A1 (en) 2022-12-19 2024-06-19 Versalis Spa ADDITIVES FOR IMPROVING THE VISCOSITY INDEX OF LUBRICATING OILS AND PROCEDURE FOR THEIR PREPARATION.
WO2024134391A1 (en) * 2022-12-19 2024-06-27 Versalis S.P.A. Viscosity index improver additives for lubricating oils and process for their preparation
WO2024134392A1 (en) * 2022-12-19 2024-06-27 Versalis S.P.A. Continuous process for reducing the molecular weight of ethylene copolymers and terpolymers

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