GB1355342A - Random copolymers of a conjugated diene and a styrene - Google Patents

Random copolymers of a conjugated diene and a styrene

Info

Publication number
GB1355342A
GB1355342A GB1355342DA GB1355342A GB 1355342 A GB1355342 A GB 1355342A GB 1355342D A GB1355342D A GB 1355342DA GB 1355342 A GB1355342 A GB 1355342A
Authority
GB
United Kingdom
Prior art keywords
styrene
hydrogenated
catalyst
butylstyrene
butadiene
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
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij 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.)
Publication date
Publication of GB1355342A publication Critical patent/GB1355342A/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
    • C08F8/04—Reduction, e.g. hydrogenation
    • 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
    • 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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F236/10—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl-aromatic monomers

Abstract

1355342 Hydrogenation diene/alkylstyrene copolymers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 29 June 1971 [1 July 1970 25 Sept 1970] 53271/73 and 53272/73 Divided out of 1355341 Heading C3P A partially or totally hydrogenated random copolymer of a conjugated diene, an alkylstyrene and optionally styrene, has a number average molecular wt. of at least 5000. Specified dienes are piperylene, 2,3-dimethylbutadiene, isoprene and butadiene. The styrene may be alkylated in side-chain or ring. A small amount of other monomers may be included. The copolymer may be made by emulsion or solution polymerization using an alkali metal or alkali metal hydrocarbyl catalyst. Randomization may be effected by adjusting rates of monomer addition or by using a randomizer the product can be hydrogenated after recovery, or in situ, preferably after catalyst deactivation. Preferably at least 50% of the olefinic, and less than 10% of the aromatic unsaturation is removed. Examples describe hydrogenated copolymers of butadiene with (1) styrene and p-tert-butylstyrene; (2) vinyl toluene; (3) p-tert-butylstyrene; the hydrogenation catalyst being aluminium triethyl/nickel 2-ethylhexanoate.
GB1355342D 1970-07-01 Random copolymers of a conjugated diene and a styrene Expired GB1355342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5327173 1970-07-01

Publications (1)

Publication Number Publication Date
GB1355342A true GB1355342A (en) 1974-06-05

Family

ID=10467209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355342D Expired GB1355342A (en) 1970-07-01 Random copolymers of a conjugated diene and a styrene

Country Status (1)

Country Link
GB (1) GB1355342A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0885905A1 (en) * 1997-06-20 1998-12-23 Repsol Quimica S.A. Process for producing hydrogenated rubbers
ES2154520A1 (en) * 1997-06-20 2001-04-01 Repsol Quimica Sa Procedure for de-activating hydrogenated rubber, involves live polymer de-activated by highly soluble compounds in water with specific formula

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0885905A1 (en) * 1997-06-20 1998-12-23 Repsol Quimica S.A. Process for producing hydrogenated rubbers
US5985995A (en) * 1997-06-20 1999-11-16 Repsol Quimica, S.A. Process for producing hydrogenated rubbers
ES2154520A1 (en) * 1997-06-20 2001-04-01 Repsol Quimica Sa Procedure for de-activating hydrogenated rubber, involves live polymer de-activated by highly soluble compounds in water with specific formula

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Legal Events

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