• 专利标题:   Preparing composition useful for tire component or article comprises loading mixer separately with never-dried natural rubber and filler, mixing to form mixture, and controlling mixer temperatures by at least one temperature control means.
  • 专利号:   FR3117120-A1, WO2022125683-A1
  • 发明人:   MORRIS M D
  • 专利权人:   BEYOND LOTUS LLC, BEYOND LOTUS LLC
  • 国际专利分类:   B29B007/38, B60C001/00, C08C001/00, C08C001/14, C08J003/20, C08K003/013, C08K003/04, C08K003/36, C08L007/00
  • 专利详细信息:   FR3117120-A1 10 Jun 2022 C08J-003/20 202252 Pages: 62 French
  • 申请详细信息:   FR3117120-A1 FR013117 08 Dec 2021
  • 优先权号:   US123396P

▎ 摘  要

NOVELTY - Preparing composition comprises (a) loading a mixer separately with at least one never-dried natural rubber and a filler, where never-dried natural rubber has 5-55 wt.% water, (b) mixing at least one never-dried natural rubber and filler to form a mixture, controlling effecting mixing at mixer temperatures by at least one temperature control means, and removing at least a portion of water from the mixture by evaporation, and (c) evacuating composition comprising filler dispersed in the natural rubber at a filler level of at least 20 phr from the mixer, where composition has a not greater than 5 wt.% water content. USE - The vulcanizate is useful for tire component or article (claimed). ADVANTAGE - The method produces rubber with excellent quality, reduces process time, effort and is economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing vulcanizate, comprising curing the composite in the presence of at least one curing agent to form a vulcanizate.