Title:
POLYBUTADIENE POLYMERS AND RUBBER COMPOSITIONS INCORPORATING POLYBUTADIENE POLYMERS FOR LOW TEMPERATURE APPLICATIONS
Document Type and Number:
Japanese Patent JP2021042389
Kind Code:
A
Abstract:
To provide 1,4-polybutadiene rubber compositions useful at low temperatures.MEANS FOR SOLVING THE PROBLEM: The 1,4-polybutadiene incorporated in the compositions comprises a cis content of at least 85 to about 92%, a vinyl content of about 1% to about 5%, and a trans content of about 3 to about 12%. The 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g°C as measured by differential scanning calorimetry (DSC).SELECTED DRAWING: Figure 1
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Inventors:
KIM HYONJE
JOSHUA S DICKSTEIN
JOSHUA S DICKSTEIN
Application Number:
JP2020202303A
Publication Date:
March 18, 2021
Filing Date:
December 04, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C08F36/06; B60C11/00; C08F4/54; C08F4/6192; C08K3/04; C08K3/06; C08L7/00; C08L9/00; C08L101/00
Domestic Patent References:
| JP2015017246A | 2015-01-29 |
Foreign References:
| WO2014006830A1 | 2014-01-09 | |||
| US20150291711A1 | 2015-10-15 |
Attorney, Agent or Firm:
Tamotsu Otani
Yoshio Takizawa
Yoshio Takizawa