Graft copolymerisation process
Abstract
Abstract A METHOD OF PREPARING A COPOLYMER HAVING AN ELASTOMERIC HYDROCARBON POLYMERIC BACKBONE AND A PLURALITY OF SIDE CHAINS COMPRISING POLYMERISING ONE OR MORE POLYMERISABLE MONOMERS (AS HEREIN DEFINED) IN THE PRESENCE OF AN UNSATURATED HYDRCARBON ELASTOMERIC POLYMER OF IODINE NUMBER AT MOST 100 AND HAVING ATTACHED THERETO A PLURALITY OF ALKALI METAL ATOMS. IN A PREFERRED EMBODIMENT THE UNSATURATED HYDROCARBON ELASTOMERIC COPOLYMER HAVING ATTACHED THERETO THE ALKALI METAL ATOMS IS ONE PREPARED BY TREATING IN THE SUBSTANTIAL ABSENCE OF AROMATIC COMPOUNDS AN UNSATURATED HYDROCARBON ELASTOMERIC POLYMER OF IODINE NUMBER AT MOST 100 WITH A COMPLEX OF AN ALKALI METAL HYDROCARBON, WHEREIN THE HYDROCARBON IS SATURATED, AND A POLAR COMPOUND. THE UNSATURATED HYDROCARBON ELASTOMERIC COPOLYMER IS PREFERABLY AN ETHYLENE PROPYLENE TERPOLYMER AND THE POLYMERISABLE MONOMER(S) IS/ARE SELECTED FROM BUTADIENE, ISOPRENE AND STYRENE. THE PRODUCTS ARE COMPATIBLE AND COVULCANISABLE WITH OTHER ELASTOMERS OF HIGH UNSATURATION.
Inventors
- 👤 Edward William Duck
- 👤 John Michael Locke
- 👤 Allan John Amass
Bibliographic Details
Claims Analysis
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