Free flowing stannous chloride in thermoplastic carrier

摘要

Stannous chloride particles are entrained in a thermoplastic polymer wherein the stannous chloride particles are a stannous chloride particle core coated with a layer of stannous oxide. The composition is readily prepared with high levels of stannous chloride in the composition, thought to be due to improved wetting of the particle by the polymer. The composition provides low acidity in contact with water and more even distribution of the stannous chloride in the polymer. The composition may be useful in the preparation of natural and synthetic rubbers, particularly when used in a coextrusion process.