Patent ID: 6224796
Filing Date: 2001-05-01
Classification: B29B,B29C,B29K,C08J,Y02W

Abstract:
Process for producing a batch of rubber-based composition capable of being heat-formed into a shaped article, comprising the steps offeeding a mixture of mixable materials consisting of from about 40% to about 98% by weight of said mixture of particles of cured rubber material, from about 1% to about 10% by weight of said mixture of a vulcanization agent, and from about 1% to about 40% by weight of said mixture of a polymeric binder which is reactive with said vulcanization agent, into a closed mixing chamber,mixing and thermokinetically heating the mixture of mixable materials,continuously monitoring one of temperature and temperature related parameter of the batch,discharging the batch from the mixing chamber when said one of temperature and temperature related parameter reaches a reference value ensuring a substantially uniform mix of said cured rubber material with said vulcanization agent and said polymeric binder without causing significant further vulcanization to produce said rubber-based composition.