Fluoroelastomer composition containing a triarylphosphorane vulcanization accelerator
Abstract
Abstract A FLUOROELASTOMER COMPOSITION WHICH HAS BENEFICIAL UTILITY IN THE MANUFACTURE OF CURED FLUOROELASTOMER ARTICLES HAVING GOOD RESISTANCE TO COMPRESSION SET CAN BE PREPARED BY BLENDING THE FOLLOWING COMPONENTS: (A) AN ELASTOMERIC COPOLYMER OF VINYLIDENE FLUORIDE AND ANOTHER FLUORINATED MONOMER; AND (B) A VULCANIZATION ACCELERATOR COMPRISED OF A TRIARYLPHOSPHORANE COMPOUND (FOR EXAMPLE, (CARBETHOXYETHYLIDENE) - TRIPHENYLPHOSPHORANE), WHICH IS USED EITHER ALONE OR IN COMBINATION WITH A CERTAIN QUATERNARY AMMONIUM COMPOUND OR A CERTAIN GUANIDINE OR AMIDINE COMPOUND; AND WHEN MAKING THE CURED ARTICLES, IT IS ALSO PREFERRED TO ADD (C) A SUITABLE METAL COMPOUND SUCH AS A DIVALENT METAL OXIDE OR HYDROXIDE AND OPTIONALLY A METAL SALT OF A WEAK ACID; AND (D) A CROSS-LINKING AGENT COMPOSED OF A SUITABLE POLYHYDROXYLICAROMATIC COMPOUND, FOR EXAMPLE, HEXAFLUOROISOPROPYLIDENE-BIS(4-HYDROXYBENZENE).
Inventors
- 👤 Brunner M De
Bibliographic Details
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