GB1414174A – Process for preparing block copolymers containing a-methyl styrene
– Google Patents
GB1414174A – Process for preparing block copolymers containing a-methyl styrene
– Google Patents
Process for preparing block copolymers containing a-methyl styrene
Info
Publication number
GB1414174A
GB1414174A
GB5722572A
GB5722572A
GB1414174A
GB 1414174 A
GB1414174 A
GB 1414174A
GB 5722572 A
GB5722572 A
GB 5722572A
GB 5722572 A
GB5722572 A
GB 5722572A
GB 1414174 A
GB1414174 A
GB 1414174A
Authority
GB
United Kingdom
Prior art keywords
block
styrene
forming
elastomeric block
number average
Prior art date
1971-12-15
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
GB5722572A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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.)
1971-12-15
Filing date
1972-12-12
Publication date
1975-11-19
1972-12-12
Application filed by Stamicarbon BV
filed
Critical
Stamicarbon BV
1975-11-19
Publication of GB1414174A
publication
Critical
patent/GB1414174A/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
C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
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
Abstract
1414174 Block copolymers STAMICARBON BV 12 Dec 1972 [15 Dec 1971] 57225/72 Heading C3P Elastomeric block copolymers of the general formula A-B-C, at least blocks A and B being linked by styrene units in which A is a non- elastomeric block derived from α-methylstyrene units and having a number average M.Wt. of 2000 to 100,000, B is an elastomeric block with a number average M.Wt. of 15,000 to 250,000, and C is a non-elastomeric block with a number average M.Wt. of 2000 to 100,000, and wherein A and C are identical if a linkage agent is used, are prepared by forming a polymer block from α-methyl-styrene at below 0‹ C. with the aid of a monofunctional anionic initiator, reacting the block so formed at below 0‹ C. with 1-100 molar proportion of styrene based on the initiator, forming an elastomeric block at above 0‹ C. and then forming the A-B-C copolymers by adding a linkage agent or by forming a further non-elastomeric block. In examples sec.-butyl lithium is used an initiator and 1,3-butadiene used to form the elastomer block. Amyl acetate, divinyl benzene and methylenediphenylene diisocyanate are used as linkage agents to give as product an α – methyl styrene – styrene – butadienestyrene-α-methyl styrene block copolymer.
GB5722572A
1971-12-15
1972-12-12
Process for preparing block copolymers containing a-methyl styrene
Expired
GB1414174A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
NL7117171A
NL7117171A
(en)
1971-12-15
1971-12-15
Publications (1)
Publication Number
Publication Date
GB1414174A
true
GB1414174A
(en)
1975-11-19
Family
ID=19814698
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5722572A
Expired
GB1414174A
(en)
1971-12-15
1972-12-12
Process for preparing block copolymers containing a-methyl styrene
Country Status (8)
Country
Link
JP
(1)
JPS5037079B2
(en)
BE
(1)
BE792795A
(en)
CA
(1)
CA1010184A
(en)
DE
(1)
DE2261214A1
(en)
FR
(1)
FR2165530A5
(en)
GB
(1)
GB1414174A
(en)
IT
(1)
IT974500B
(en)
NL
(1)
NL7117171A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2169905A
(en)
*
1984-12-13
1986-07-23
Japan Synthetic Rubber Co Ltd
Conjugated diene based rubber composition
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4260694A
(en)
*
1979-11-29
1981-04-07
Mobil Oil Corporation
p-Methylstyrene diene block copolymers
FR2514011A1
(en)
*
1981-10-02
1983-04-08
Philippe Teyssie
CIPO-Patent
JP5168460B2
(en)
*
2007-09-28
2013-03-21
株式会社クラレ
Block copolymer and method for producing the same
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1191605A
(en)
*
1967-04-01
1970-05-13
Polymer Corp
Block Copolymers and their Preparation.
0
BE
BE792795D
patent/BE792795A/en
unknown
1971
1971-12-15
NL
NL7117171A
patent/NL7117171A/xx
unknown
1972
1972-12-12
GB
GB5722572A
patent/GB1414174A/en
not_active
Expired
1972-12-13
CA
CA158,774A
patent/CA1010184A/en
not_active
Expired
1972-12-14
DE
DE19722261214
patent/DE2261214A1/en
active
Pending
1972-12-14
FR
FR7244485A
patent/FR2165530A5/fr
not_active
Expired
1972-12-14
IT
IT5473272A
patent/IT974500B/en
active
1972-12-15
JP
JP47126044A
patent/JPS5037079B2/ja
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2169905A
(en)
*
1984-12-13
1986-07-23
Japan Synthetic Rubber Co Ltd
Conjugated diene based rubber composition
US4742117A
(en)
*
1984-12-13
1988-05-03
Japan Synthetic Rubber Co., Ltd.
Conjugated diene based rubber composition
GB2169905B
(en)
*
1984-12-13
1989-10-18
Japan Synthetic Rubber Co Ltd
Also Published As
Publication number
Publication date
FR2165530A5
(en)
1973-08-03
DE2261214A1
(en)
1973-06-20
JPS4867381A
(en)
1973-09-14
BE792795A
(en)
1973-06-15
JPS5037079B2
(en)
1975-11-29
CA1010184A
(en)
1977-05-10
NL7117171A
(en)
1973-06-19
IT974500B
(en)
1974-06-20
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PROCESS FOR THE PREPARATION OF AN ENTCOPOLY
Legal Events
Date
Code
Title
Description
1976-03-31
PS
Patent sealed
1979-07-11
PCNP
Patent ceased through non-payment of renewal fee
