GB1259519A - - Google Patents
Info
- Publication number
- GB1259519A GB1259519A GB3879269A GB3879269A GB1259519A GB 1259519 A GB1259519 A GB 1259519A GB 3879269 A GB3879269 A GB 3879269A GB 3879269 A GB3879269 A GB 3879269A GB 1259519 A GB1259519 A GB 1259519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- atom
- acrylonitrile
- butadiene
- aug
- aluminium
- 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
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
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and 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
- C08F36/04—Homopolymers and 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,259,519. Alternating copolymers. BRIDGESTONE TIRE K.K. 1 Aug., 1969 [2 Aug., 1968; 8 Aug., 1968; 18 Oct., 1968; 7 March, 1969], No. 38792/69. Heading C3P. Alternating copolymers are prepared by copolymerizing at least one C 4-10 conjugated diene and at least one of acrylonitrile, methacrylonitrile and α,#-unsaturated carboxylic acid esters at a temperature of -78‹ to 100‹ C. in the liquid state in the presence of a catalyst prepared from (A) at least one compound of the transition metals of Groups IV and V excluding chelate compounds and (B) at least one halide of the formula ZnX 2 , AlH n X 3-n or AlH n X 3-n .L wherein X is halogen, L is an ether group having up to 20 carbons and n is 0, 0À5, 1À0 or 2; the transition metal atom in (A) being present as 10<SP>-6</SP> to 2 gm. atom per gm. atom of the metal atom in (B), the total amount of metal atoms in the catalyst system being 10<SP>-5</SP> to 1 gm. atom based on 1 mole of fed monomers, and the molar ratio of conjugated dienes to other monomers being 1/10 to 10/1. A further catalyst component (C) comprising, as a free radical initiator, an organic peroxide, an azonitrile compound or a trialkylboron-oxygen system, may be present, the molar ratio of (C) to the fed monomers being 0À00005 : 1 to 0À05 : 1. A molecular weight regulator chosen from mercaptans and carbon polyhalides having at least one bromine or iodine atom may also be present, the molar ratio of said regulator to the fed monomers being 10<SP>-8</SP> : 1 to 0À05 : 1. In the examples copolymers of butadiene and acrylonitrile, isoprene and acrylonitrile, butadiene and methylmethacrylate, and butadiene, acrylonitrile and n-butylacrylate are prepared. The catalysts exemplified are (A) vanadyl trichloride, pentaethoxytantalum, tetraisopropoxy titanium, zirconium oxydichloride, (tritertiary butyl)vanadyl, zirconium tetrachloride, tetrapropoxy zirconium, (B) anhydrous zinc chloride, aluminium trichloride, aluminium trichloride diethyl etherate, aluminium tribromide and aluminium hydride dichloride diethyl etherate. The components (C) exemplified are benzoyl peroxide, 2,2<SP>l</SP>-azo-bisisobutyronitrile, diisopropyl peroxydicarbonate, tertiary butyl peroxy pivalate and triethylboron/oxygen, and the exemplified molecular weight inhibitors are carbon tetrabromide, iodoform and n-dodecylmercaptan.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430268 | 1968-08-02 | ||
JP5580968 | 1968-08-08 | ||
JP7555068 | 1968-10-18 | ||
JP1679369A JPS4933111B1 (en) | 1969-03-07 | 1969-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1259519A true GB1259519A (en) | 1972-01-05 |
Family
ID=27456651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3879269A Expired GB1259519A (en) | 1968-08-02 | 1969-08-01 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1259519A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076926A (en) | 1975-05-14 | 1978-02-28 | Imperial Chemical Industries Limited | Polymerization catalyst comprising aluminum halide and an alcohol or ether |
CN115505053A (en) * | 2022-10-19 | 2022-12-23 | 中国科学院青岛生物能源与过程研究所 | Hydrogenated butadiene-valeronitrile rubber and preparation method and application thereof |
-
1969
- 1969-08-01 GB GB3879269A patent/GB1259519A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076926A (en) | 1975-05-14 | 1978-02-28 | Imperial Chemical Industries Limited | Polymerization catalyst comprising aluminum halide and an alcohol or ether |
CN115505053A (en) * | 2022-10-19 | 2022-12-23 | 中国科学院青岛生物能源与过程研究所 | Hydrogenated butadiene-valeronitrile rubber and preparation method and application thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |