GB1384143A - Process for manufacturing hydrogenated polymers from conju gated diolefins - Google Patents

Process for manufacturing hydrogenated polymers from conju gated diolefins

Info

Publication number
GB1384143A
GB1384143A GB3082572A GB3082572A GB1384143A GB 1384143 A GB1384143 A GB 1384143A GB 3082572 A GB3082572 A GB 3082572A GB 3082572 A GB3082572 A GB 3082572A GB 1384143 A GB1384143 A GB 1384143A
Authority
GB
United Kingdom
Prior art keywords
stage
halogen
catalyst
transition metal
reducing agent
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
GB3082572A
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of GB1384143A publication Critical patent/GB1384143A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/02—Hydrogenation

Abstract

1384143 Hydrogenated diene polymers INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 30 June 1972 [5 July 1971] 30825/72 Heading C3P Hydrogenated conjugated diene polymers are prepared by a two-stage process comprising (1) polymerizing the diene in solution, in the absence of an organometallic reducing agent, and in the presence of a transition metal compound of formula where X is halogen, n is 0, 1, 2 or 3, M is a Group IV to VIII transition metal, R<SP>11</SP> is hydride, halogen, hydrooarbyl or carbonyl, m is 1-5, L is a Lewis base containing at least one ether, alcohol or ketone group, p is 0-4, and q is an integer; and (2) reacting the solution from step (1) containing residual catalyst, with hydrogen in the additional presence of a metallic reducing agent of formula R<SP>1</SP> m <SP>1</SP>M<SP>1</SP>X<SP>1</SP> n <SP>1</SP>, M<SP>1</SP>AlH p <SP>1</SP>X<SP>1</SP> 4-p <SP>1</SP> or R<SP>1</SP> q <SP>1</SP>M<SP>1</SP> in which R<SP>1</SP> is an aromatic, saturated aliphatic or saturated cycloaliphatic hydrocarbon radical or a combination thereof, having 1-20 carbon atoms, m<SP>1</SP> is 1-3, M<SP>1</SP> is Al, Zn, Li, Na or Mg, X<SP>1</SP> is halogen, R, OR, NR 2 , or NHR, where R is a monovalent hydrocarbon radical, n<SP>1</SP> is 0-2, p<SP>1</SP> is 0-4 and q<SP>1</SP>, which is equal to the valence of the metal M<SP>1</SP>, is 1-3. Prior to stage (2) the residual catalyst may be modified by adding a complexing agent for the transition metal, e.g. acetylacetone, a carboxylic acid or an amine such as pyridine. Under certain conditions the hydrogenation may be selective to 1,2-units. All the examples start from 1,3-butadiene in toluene or n-heptane solution, the catalyst for stage (1) being one of the following and the reducing agent added for stage (2) being triethylaluminium, butyl lithium or lithium aluminium hydride. In Example 4 further stage (1) catalyst is also added for stage (2).
GB3082572A 1971-07-05 1972-06-30 Process for manufacturing hydrogenated polymers from conju gated diolefins Expired GB1384143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7124566A FR2144984A5 (en) 1971-07-05 1971-07-05

Publications (1)

Publication Number Publication Date
GB1384143A true GB1384143A (en) 1975-02-19

Family

ID=9079846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3082572A Expired GB1384143A (en) 1971-07-05 1972-06-30 Process for manufacturing hydrogenated polymers from conju gated diolefins

Country Status (7)

Country Link
BE (1) BE785461A (en)
CA (1) CA1000897A (en)
DE (1) DE2232767A1 (en)
FR (1) FR2144984A5 (en)
GB (1) GB1384143A (en)
IT (1) IT962445B (en)
NL (1) NL7209368A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009061A2 (en) * 1989-12-14 1991-06-27 The B.F. Goodrich Company High-temperature oil-resistant elastomers
US5231143A (en) * 1989-12-14 1993-07-27 The B. F. Goodrich Company High-temperature oil-resistant elastomers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219219B1 (en) 1973-02-22 1976-06-11 Inst Francais Du Petrole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009061A2 (en) * 1989-12-14 1991-06-27 The B.F. Goodrich Company High-temperature oil-resistant elastomers
WO1991009061A3 (en) * 1989-12-14 1991-07-25 Goodrich Co B F High-temperature oil-resistant elastomers
US5231143A (en) * 1989-12-14 1993-07-27 The B. F. Goodrich Company High-temperature oil-resistant elastomers

Also Published As

Publication number Publication date
IT962445B (en) 1973-12-20
BE785461A (en) 1972-12-27
NL7209368A (en) 1973-01-09
DE2232767A1 (en) 1973-01-18
FR2144984A5 (en) 1973-02-16
CA1000897A (en) 1976-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years