GB1068005A - Treatment of diene elastomers with boron comopunds - Google Patents
Treatment of diene elastomers with boron comopundsInfo
- Publication number
- GB1068005A GB1068005A GB1494366A GB1494366A GB1068005A GB 1068005 A GB1068005 A GB 1068005A GB 1494366 A GB1494366 A GB 1494366A GB 1494366 A GB1494366 A GB 1494366A GB 1068005 A GB1068005 A GB 1068005A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polybutadiene
- treated
- prepared
- boron
- diene
- 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
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
Landscapes
- Chemical & Material Sciences (AREA)
- General 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)
Abstract
The properties of diene elastomers e.g. cold-flow, are improved by heating a solution or dispersion of a diene elastomer in a liquid medium at temperatures of 10 DEG to 170 DEG C. while in contact with a compound containing at least one boron-hydrogen bond. The boron compounds may have the formula BnHn + 4 or Bn\Hn + 6 in which n is 2 to 10, and are preferably addition products of boranes with amines. The diene polymers are suitably butadiene, isoprene, piperylene, and chloroprene polymers, and copolymers of these dienes with vinyl or vinylidene compounds e.g. styrene and acrylonitrile. Suitable solvents or dispersing agents are aromatic and aliphatic hydrocarbons and chlorohydrocarbons, and also, as the continuous dispersion phase, water, in which case the elastomers may be first dissolved in an organic solvent, and the solution dispersed in the aqueous phase. In the examples, (1) polybutadiene, prepared using TiCl4/I2/AlR3, in which R is an alkyl group, is treated with (C2H5)3N: BH3 in toluene; (2) polybutadiene, prepared using (C4H9O)TiT3/Al(i-C4H9)3, is treated with (C2H5)2NH: BH3 in benzene; and (3) polybutadiene, prepared as in (2), is treated with (C4\H3)3\N : BH3 in benzene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0045905 | 1965-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1068005A true GB1068005A (en) | 1967-05-10 |
Family
ID=7100744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1494366A Expired GB1068005A (en) | 1965-04-24 | 1966-04-04 | Treatment of diene elastomers with boron comopunds |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE679664A (en) |
| DE (1) | DE1570564A1 (en) |
| GB (1) | GB1068005A (en) |
| NL (1) | NL6605204A (en) |
-
1965
- 1965-04-24 DE DE19651570564 patent/DE1570564A1/en active Pending
-
1966
- 1966-04-04 GB GB1494366A patent/GB1068005A/en not_active Expired
- 1966-04-18 BE BE679664D patent/BE679664A/xx unknown
- 1966-04-19 NL NL6605204A patent/NL6605204A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6605204A (en) | 1966-10-25 |
| DE1570564A1 (en) | 1970-02-05 |
| BE679664A (en) | 1966-10-03 |
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