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    • 5. 发明授权
    • Multi-stage polymer composition and films and polarizer plates made therefrom
    • 多级聚合物组合物和由其制成的膜和偏振片
    • US09156976B2
    • 2015-10-13
    • US14111574
    • 2012-08-14
    • Hailan GuoVeera NelliappanEric G. Lundquist
    • Hailan GuoVeera NelliappanEric G. Lundquist
    • C08L33/12C08F2/00C08F220/14C08F285/00G02B1/04C08F220/18
    • C08L33/12C08F2/001C08F220/14C08F285/00C08F2220/1808G02B1/04Y10T428/2998C08F2220/281C08F236/20C08F222/1006C08L33/08C08L33/10
    • A multi-stage polymer composition comprising a crosslinked core component, one or more intermediate layer components and an outermost layer component in which the refractive index of each of the crosslinked core, the one or more intermediate layers and the outermost layer are within 2% of the refractive index of each adjacent component; wherein the crosslinked core component comprises from 75 to 99.9 weight percent of units derived from at least one first monomer selected from the group consisting of alkyl, aryl, and cycloalkyl (meth)acrylate monomer, optionally from 1 to 20 weight percent of units derived from a second monomer selected from the group consisting vinyl monomers; and from 0.1 to 5 weight percent of units derived from cross-linking monomers, graft-linking monomers, or combination thereof, and has a Tg of from −75 to −35° C.; wherein each of the one or more intermediate layer components comprises from 71 to 99.9 weight percent of units derived from a third monomer selected from the group consisting alkyl, aryl and cycloalkyl (meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, graft-linking monomer, or combination thereof, optionally from 1 to 10 weight percent of units derived from one or more functional monomers, from 0 to 14 weight percent of vinyl monomers, and has a Tg of from −35 to 100° C.; and wherein the outermost layer component comprises from 90 to 100 weight percent units derived from a fourth monomer selected from the group consisting of alkyl (meth)acrylate having from one to twelve carbon atoms, optionally from 0.5 to 10 weight percent of units derived from one or more functional monomers, and has a Tg of from 80 to 130° C. is provided. Films and polarizer plates made from the compositions are also provided.
    • 一种多级聚合物组合物,其包含交联核心组分,一种或多种中间层组分和最外层组分,其中每个交联核心,一个或多个中间层和最外层的折射率在 每个相邻部件的折射率; 其中所述交联核心组分包含75至99.9重量%的衍生自至少一种选自烷基,芳基和(甲基)丙烯酸环烷基酯单体的第一单体的单元,任选地1至20重量%衍生自 选自乙烯基单体的第二单体; 和0.1至5重量%的衍生自交联单体,接枝单体或其组合的单元,并且具有-75至-35℃的Tg。 其中所述一种或多种中间层组分中的每一种包含71至99.9重量%的衍生自选自烷基,芳基和(甲基)丙烯酸环烷基酯单体的第三单体的单元,0至5重量%的衍生自 交联单体,接枝单体或其组合,任选地1至10重量%的衍生自一种或多种官能单体的单元,0至14重量%的乙烯基单体,并且具有-35 至100℃。 并且其中最外层组分包含90至100重量%的衍生自第四单体的单元,所述第四单体选自具有1至12个碳原子的(甲基)丙烯酸烷基酯,任选地0.5至10重量%的衍生自一个 或更多官能单体,并且具有80至130℃的Tg。 还提供了由组合物制成的膜和偏振片。