Process for improving properties of vulcanized elastomers
Abstract
Abstract VULCANIZABLE ELASTOMERIC COMPOSITIONS IN WHICH THE RUBER IS A HALOGEN-FREE POLYMER AND WHICH CONTAIN AT LEAST ONE REINFORCING FILLER AND SULFUR ARE VULCANIZED IN THE PRESENCE OF AN EFFECTIVE AMOUNT OF AT LEAST ONE SUBSTITUTED S-TRIAZINE COMPOUND ADAPTED TO MODIFY THE REINFORCING EFFECTT OF THE FILLER, THE SAID S-TRIAZINE COMPOUND HAVING THE FORMULA (R1-N(-R2)-),(R3-N(-R4)-),(X-S-)-1,3,5-TRIAZINE WHEREIN R1, R2, R3 AND R4 MAY BE HYDROXY OR CYANO OR HYDROGEN OR ONE OF THE ORGANIC RADICALS FURTHER DEFINED IN THE SPECIFICATION AND X IS -N(-R6)-R7 WHEREIN R IS ALKYL AND R6 AND R7 ARE ALSO RADICALS, PRINCIPALLY ORGANIC RADICALS AS DEFINED BELOW. THE VULCANIZATES OBTAINED BY THE METHOD OF THE INVENTION ARE DISTINGUISHED BY LONGER MOONEY SCORCH TIMES, HIGHER TENSILE STRENGTH AND A HIGHER MODULUS, PARTICULARLY AT 300% ELONGATION, AS WELL AS OTHER FAVORABLE PROPERTIES.
Inventors
- 👤 H Westlinning
- 👤 S Wolff
- 👤 W Schwarze
Bibliographic Details
Claims Analysis
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