GB1331521A - Block copolymer and process of manufacture - Google Patents

Block copolymer and process of manufacture

Info

Publication number
GB1331521A
GB1331521A GB1023471A GB1023471A GB1331521A GB 1331521 A GB1331521 A GB 1331521A GB 1023471 A GB1023471 A GB 1023471A GB 1023471 A GB1023471 A GB 1023471A GB 1331521 A GB1331521 A GB 1331521A
Authority
GB
United Kingdom
Prior art keywords
diluent
lithium
april
reacted
manufacture
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
GB1023471A
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Publication of GB1331521A publication Critical patent/GB1331521A/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
    • 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
    • C08F297/042—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 using a polyfunctional initiator

Abstract

1331521 Organolithium compounds DENKI KAGAKU KOGYO KK 20 April 1971 [24 April 1970] 10234/71 Heading C2J [Also in Division C3] Non-condensed polycyclic aromatic hydrocarbons containing at least one direct benzenephenyl linkage are reacted with lithium metal and then with a conjugated diene to form an oligomeric dianion, in a cyclic ether or aliphatic polyether as diluent. In examples, diphenyl or o-terphenyl are reacted with lithium in ethylene glycol dimethyl ether or tetrahydrofuran, in one case including minor amounts of styrene and sec-butyl lithium also, and the products contacted with butadiene or isoprene. The polar diluent is then replaced by a non-polar diluent, e.g. benzene, to form a suitable solution for block copolymerization.
GB1023471A 1970-04-24 1971-04-20 Block copolymer and process of manufacture Expired GB1331521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3473970A JPS514940B1 (en) 1970-04-24 1970-04-24

Publications (1)

Publication Number Publication Date
GB1331521A true GB1331521A (en) 1973-09-26

Family

ID=12422673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1023471A Expired GB1331521A (en) 1970-04-24 1971-04-20 Block copolymer and process of manufacture

Country Status (2)

Country Link
JP (1) JPS514940B1 (en)
GB (1) GB1331521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483432A1 (en) * 1980-03-07 1981-12-04 Shell Int Research
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483432A1 (en) * 1980-03-07 1981-12-04 Shell Int Research
US4845154A (en) * 1980-03-07 1989-07-04 Shell Internationale Research Maatschappij B.V. Copolymers of aromatic vinyl compounds and conjugated diolefins having substantial increase in aromatic vinyl compound differential content
US4948849A (en) * 1980-03-07 1990-08-14 Shell Internationale Research Maatschappij B.V. Process for making copolymers of aromatic vinyl compounds ADD conjugated diolefins having substantial increase in aromatic vinyl compound differential content

Also Published As

Publication number Publication date
JPS514940B1 (en) 1976-02-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee