GB1001455A - Process for the manufacture of amorphous rubbery ethylene/propylene copolymers having improved properties - Google Patents

Process for the manufacture of amorphous rubbery ethylene/propylene copolymers having improved properties

Info

Publication number
GB1001455A
GB1001455A GB3974962A GB3974962A GB1001455A GB 1001455 A GB1001455 A GB 1001455A GB 3974962 A GB3974962 A GB 3974962A GB 3974962 A GB3974962 A GB 3974962A GB 1001455 A GB1001455 A GB 1001455A
Authority
GB
United Kingdom
Prior art keywords
manufacture
improved properties
propylene copolymers
rubbery ethylene
amorphous
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
GB3974962A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1001455A publication Critical patent/GB1001455A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

An amorphous, rubbery ethylene/propylene copolymer of reduced viscosity less than 1 is manufactured by heating at 260 DEG to 420 DEG C. an amorphous rubbery ethylene/propylene copolymer of reduced viscosity greater than 1, the heating being in the absence of air or oxidizing substances.
GB3974962A 1961-10-20 1962-10-19 Process for the manufacture of amorphous rubbery ethylene/propylene copolymers having improved properties Expired GB1001455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0035172 1961-10-20

Publications (1)

Publication Number Publication Date
GB1001455A true GB1001455A (en) 1965-08-18

Family

ID=7095889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3974962A Expired GB1001455A (en) 1961-10-20 1962-10-19 Process for the manufacture of amorphous rubbery ethylene/propylene copolymers having improved properties

Country Status (5)

Country Link
AT (1) AT239526B (en)
BE (1) BE623895A (en)
CH (1) CH422346A (en)
GB (1) GB1001455A (en)
NL (1) NL284428A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023789A1 (en) * 1979-09-10 1981-03-12 Agip Petroli S.P.A., Roma METHOD FOR PRODUCING AGENTS FOR IMPROVING THE VISCOSITY INDEX OF LUBRICANTS.
US4372863A (en) 1977-04-13 1983-02-08 Exxon Research & Engineering Co. Oil compositions containing oil-soluble, oxidatively and mechanically degraded ethylene copolymers
EP0182470A2 (en) * 1984-09-27 1986-05-28 UNIROYAL CHEMICAL COMPANY, Inc. Liquid rubber composition
EP1671982A1 (en) * 2004-12-16 2006-06-21 Polimeri Europa S.p.A. Preparation process of additives for lubricating oils having an improved dimensional stability and enhanced low temperature performances

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
DE3023789A1 (en) * 1979-09-10 1981-03-12 Agip Petroli S.P.A., Roma METHOD FOR PRODUCING AGENTS FOR IMPROVING THE VISCOSITY INDEX OF LUBRICANTS.
EP0182470A2 (en) * 1984-09-27 1986-05-28 UNIROYAL CHEMICAL COMPANY, Inc. Liquid rubber composition
EP0182470A3 (en) * 1984-09-27 1987-04-01 Uniroyal, Inc. Liquid rubber composition
EP1671982A1 (en) * 2004-12-16 2006-06-21 Polimeri Europa S.p.A. Preparation process of additives for lubricating oils having an improved dimensional stability and enhanced low temperature performances
US7868095B2 (en) 2004-12-16 2011-01-11 Polimeri Europa S.P.A. Additives for lubricating oils having an improved dimensional stability and enhances low temperature performances, and process for the preparation thereof

Also Published As

Publication number Publication date
AT239526B (en) 1965-04-12
BE623895A (en)
CH422346A (en) 1966-10-15
NL284428A (en)

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