JPS5630444A - Rubber composition - Google Patents
Rubber compositionInfo
- Publication number
- JPS5630444A JPS5630444A JP10509979A JP10509979A JPS5630444A JP S5630444 A JPS5630444 A JP S5630444A JP 10509979 A JP10509979 A JP 10509979A JP 10509979 A JP10509979 A JP 10509979A JP S5630444 A JPS5630444 A JP S5630444A
- Authority
- JP
- Japan
- Prior art keywords
- tensile strength
- melamine resin
- softening point
- temperature
- rubber
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title abstract 5
- 239000005060 rubber Substances 0.000 title abstract 5
- 239000000203 mixture Substances 0.000 title abstract 4
- 229920000877 Melamine resin Polymers 0.000 abstract 3
- 239000004640 Melamine resin Substances 0.000 abstract 3
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- 238000004073 vulcanization Methods 0.000 abstract 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To improve tensile strength at high temperatures without detriment to processability, by adding a high-softening uncured melamine resin to a styrene- butadiene copolymer rubber.
CONSTITUTION: To 100pts.wt. of a styrene-butadiene copolymer rubber are added 5W25pts.wt. of an uncured melamine resin, softening point ≥80°C, and known additives usually used in rubber, i.e., vulcanizing agents, vulcanization accelerators, fillers, reinforcing agents, dispersants, pigments, etc. The mixture is milled in a Banbury mixer or between rolls at a temperature lower than the softening point of the melamine resin. The resulting composition is vulcanized at a temperature higher than the softening point. The vulcanizate of this rubber composition obtained shows good physical properties and, in addition, has excellent processability. Especially, the tensile strength of the vulcanizate at high temperature is excellent and temperature-dependence of elongation and tensile strength is little.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10509979A JPS5630444A (en) | 1979-08-20 | 1979-08-20 | Rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10509979A JPS5630444A (en) | 1979-08-20 | 1979-08-20 | Rubber composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5630444A true JPS5630444A (en) | 1981-03-27 |
Family
ID=14398441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10509979A Pending JPS5630444A (en) | 1979-08-20 | 1979-08-20 | Rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5630444A (en) |
-
1979
- 1979-08-20 JP JP10509979A patent/JPS5630444A/en active Pending
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