会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Low shrinkage unsaturated polyester resin composition
    • 低收缩不饱和聚酯树脂组合物
    • US4394480A
    • 1983-07-19
    • US361168
    • 1982-03-24
    • Norihisa UjikawaKyosuke Fukushi
    • Norihisa UjikawaKyosuke Fukushi
    • C08L67/00C08F295/00C08F299/04C08L23/00C08L51/00C08L51/02C08L53/00C08L67/06C08L77/00C08L101/00
    • C08L67/06
    • An unsaturated polyester resin composition comprising an unsaturated polyester resin, a polymerizable monomer and a mixture of block copolymers having acid groups prepared by first copolymerizing in a first copolymerization reaction a polymeric peroxide with a monomer A or B, or with an unsaturated acid together with monomer A or B, thereby obtaining a copolymer having peroxy bonds in the molecule thereof, which copolymer is further copolymerized in the second copolymerization reaction with each of monomers A or B or the unsaturated acid which were excluded in the first copolymerization reaction to give the block copolymer mixture, which composition shows no segregation of the low shrinkage agent on thickening by a thickener and the said composition gives cured moldings of reduced shrinkage which are excellent in many characteristics.Monomer A: a vinyl acetate or a mixture of vinyl acetate and one or more monomers which are copolymerizable with vinyl acetateMonomer B: styrene series monomers, unsaturated organic acids, anhydrides, or acid esters, or mixtures thereof
    • 一种不饱和聚酯树脂组合物,其包含不饱和聚酯树脂,可聚合单体和具有酸基的嵌段共聚物的混合物,其通过首先在聚合过氧化物与单体A或B的共聚反应中或与不饱和酸一起共聚而制备 A或B,从而得到其分子中具有过氧键的共聚物,该共聚物在第二次共聚反应中进一步与单体A或B