GB1448177A – Process for the preparation of block polymers
– Google Patents
GB1448177A – Process for the preparation of block polymers
– Google Patents
Process for the preparation of block polymers
Info
Publication number
GB1448177A
GB1448177A
GB3051474A
GB3051474A
GB1448177A
GB 1448177 A
GB1448177 A
GB 1448177A
GB 3051474 A
GB3051474 A
GB 3051474A
GB 3051474 A
GB3051474 A
GB 3051474A
GB 1448177 A
GB1448177 A
GB 1448177A
Authority
GB
United Kingdom
Prior art keywords
polymethacrylonitrile
styrene
block copolymers
dilithium
methacrylonitrile
Prior art date
1973-08-06
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
GB3051474A
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber 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.)
1973-08-06
Filing date
1974-07-10
Publication date
1976-09-02
1974-07-10
Application filed by Goodyear Tire and Rubber Co
filed
Critical
Goodyear Tire and Rubber Co
1976-09-02
Publication of GB1448177A
publication
Critical
patent/GB1448177A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
C08F297/048—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes polymerising vinyl aromatic monomers, conjugated dienes and polar monomers
Abstract
1448177 Methacrylonitrile block copolymers GOODYEAR TIRE & RUBBER CO 10 July 1974 [6 Aug 1973] 30514/74 Heading C3P Five-block copolymers ABCBA are obtained by polymerizing a conjugated diene (to form block C) and styrene or an alkyl styrene (to form blocks B) in the presence of a dilithium organometallic initiator, followed by addition of methacrylonitrile to the lining BCB polymer to form the terminal A blocks. Examples refer to the production of polymethacrylonitrile-polystyrene – polybutadiene – polystyrene – polymethacrylonitrile block copolymers in the presence of diisoprenyl dilithium or dilithiopolyisoprene initiators, the styrene and butadiene being charged as a mixture. A comparative polymethacrylonitrile – polybutadiene – polymethacrylonitrile copolymers is also prepared, using diisoprenyldilithium.
GB3051474A
1973-08-06
1974-07-10
Process for the preparation of block polymers
Expired
GB1448177A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US38591673A
1973-08-06
1973-08-06
Publications (1)
Publication Number
Publication Date
GB1448177A
true
GB1448177A
(en)
1976-09-02
Family
ID=23523418
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3051474A
Expired
GB1448177A
(en)
1973-08-06
1974-07-10
Process for the preparation of block polymers
Country Status (9)
Country
Link
JP
(1)
JPS559422B2
(en)
BE
(1)
BE818468A
(en)
BR
(1)
BR7406342D0
(en)
CA
(1)
CA1038535A
(en)
DE
(1)
DE2432696C3
(en)
FR
(1)
FR2240243B1
(en)
GB
(1)
GB1448177A
(en)
IT
(1)
IT1016965B
(en)
NL
(1)
NL172554C
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN113416288A
(en)
*
2021-06-01
2021-09-21
广东众和化塑股份公司
Preparation method of environment-friendly gel-free grafted diene polymer
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JP2004323743A
(en)
*
2003-04-25
2004-11-18
Institute Of Physical & Chemical Research
Method for producing block copolymer
1974
1974-07-04
CA
CA204,060A
patent/CA1038535A/en
not_active
Expired
1974-07-08
DE
DE19742432696
patent/DE2432696C3/en
not_active
Expired
1974-07-10
GB
GB3051474A
patent/GB1448177A/en
not_active
Expired
1974-07-23
IT
IT5223974A
patent/IT1016965B/en
active
1974-07-30
FR
FR7426363A
patent/FR2240243B1/fr
not_active
Expired
1974-08-02
BE
BE147271A
patent/BE818468A/en
not_active
IP Right Cessation
1974-08-02
BR
BR634274A
patent/BR7406342D0/en
unknown
1974-08-06
JP
JP9021974A
patent/JPS559422B2/ja
not_active
Expired
1974-08-06
NL
NL7410574A
patent/NL172554C/en
not_active
IP Right Cessation
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN113416288A
(en)
*
2021-06-01
2021-09-21
广东众和化塑股份公司
Preparation method of environment-friendly gel-free grafted diene polymer
Also Published As
Publication number
Publication date
IT1016965B
(en)
1977-06-20
JPS559422B2
(en)
1980-03-10
NL172554C
(en)
1983-09-16
FR2240243B1
(en)
1977-10-14
DE2432696B2
(en)
1981-02-26
CA1038535A
(en)
1978-09-12
FR2240243A1
(en)
1975-03-07
NL7410574A
(en)
1975-02-10
AU7105674A
(en)
1976-01-15
JPS5049390A
(en)
1975-05-02
BR7406342D0
(en)
1975-09-09
DE2432696A1
(en)
1975-02-20
DE2432696C3
(en)
1982-04-08
BE818468A
(en)
1974-12-02
NL172554B
(en)
1983-04-18
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Legal Events
Date
Code
Title
Description
1977-01-13
PS
Patent sealed
1986-03-12
PCNP
Patent ceased through non-payment of renewal fee
