Liquid crystal polymorphism of boron difluoride β-diketonates
摘要:
Boron difluoride 2-alkyl-beta-diketonates possessing liquid crystal polymorphism and luminescence properties were first obtained. Influence of the ligand structure on the liquid crystal properties of the boron difluoride complexes was demonstrated.
Liquid crystal polymorphism of boron difluoride β-diketonates
摘要:
Boron difluoride 2-alkyl-beta-diketonates possessing liquid crystal polymorphism and luminescence properties were first obtained. Influence of the ligand structure on the liquid crystal properties of the boron difluoride complexes was demonstrated.
Improving stability at moderate temperatures of motor vehicle components shaped from polyvinyl chloride resin compositions
申请人:WITCO CORPORATION
公开号:EP0331095A1
公开(公告)日:1989-09-06
Motor vehicle components are provided having an improved stability at moderate temperatures and shaped from polyvinyl chloride resin compositions, comprising a polyvinyl chloride resin, at least one heat stabilizer in a sufficient amount to impart heat processing stability, and a S-diketone in a sufficient amount to provide, after forming, stability at moderate temperatures not provided by any residual heat stabilizer, as well as polyvinyl chloride resin stabilizer compositions and polyvinyl chloride resin compositions containing such heat stabilizer compositions suitable for use in forming motor vehicle components, comprising at least one heat stabilizer and a β-diketone.