GB1359838A - Preparation of thermoplastic elastomers - Google Patents
Preparation of thermoplastic elastomersInfo
- Publication number
- GB1359838A GB1359838A GB4414871A GB4414871A GB1359838A GB 1359838 A GB1359838 A GB 1359838A GB 4414871 A GB4414871 A GB 4414871A GB 4414871 A GB4414871 A GB 4414871A GB 1359838 A GB1359838 A GB 1359838A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butadiene
- styrene
- block
- cross
- polymer
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
Abstract
1359838 Cross-linking block copolymers IDEMITSU KOSAN CO Ltd 22 Sept 1971 [24 Sept 1970] 44148/71 Heading C3P Thermoplastic elastomers containing at least one thermoplastic block of a styrene, alphamethyl styrene, acrylonitrile, methacrylonitrile, acrylate or methacrylate polymer and at least one elastomeric block of a butadiene, isoprene or phenylbutadiene polymer are crosslinked by heating the block polymer in solution in an aromatic hydrocarbon, in the presence of a cross-linking agent, and at 70 to 130‹ C. to 2 to 24 hours. In examples, the two-stage sequential polymerization in the presence of metallic sodium dispersion and as solvent, trimethylamine or a tetrahydrofuran/benzene mixture, of styrene / butadiene, butadiene / styrene, butadiene / acrylonitrile or butadiene / methyl methacrylate is described, followed by heating the copolymers in benzene and in the presence of benzoyl peroxide or azobisisobutyronitrile, and recovering the cross-linked products.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8293670 | 1970-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1359838A true GB1359838A (en) | 1974-07-10 |
Family
ID=13788096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4414871A Expired GB1359838A (en) | 1970-09-24 | 1971-09-22 | Preparation of thermoplastic elastomers |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2147356A1 (en) |
GB (1) | GB1359838A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936365A (en) * | 1974-05-28 | 1976-02-03 | The Dow Chemical Company | Radiation crosslinked block copolymer blends with improved impact resistance |
-
1971
- 1971-09-22 GB GB4414871A patent/GB1359838A/en not_active Expired
- 1971-09-22 DE DE19712147356 patent/DE2147356A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2147356A1 (en) | 1972-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |