Aqueous dispersions of particles of polymers with a glass transition temperature gradient
    9.
    发明授权
    Aqueous dispersions of particles of polymers with a glass transition temperature gradient 失效
    具有玻璃化转变温度梯度的聚合物颗粒的水分散体

    公开(公告)号:US6444749B2

    公开(公告)日:2002-09-03

    申请号:US78491501

    申请日:2001-02-16

    申请人: AKZO NOBEL NV

    IPC分类号: C08F2/22 C08L35/00

    摘要: The invention pertains to an aqueous dispersion of particles of a polymer having a functional group for cross-linking, which is obtainable by a free radical emulsion polymerization of at least two different ethylenically unsaturated monomers, a surfactant of the formula M+.-OOC-CH=CHCOOR, wherein R is C(6-22) alkyl and M+ is Na+, K+, Li+, NH4+, or a protonated or quaternary amine, and a co-reactive compound having at least two groups capable of reacting with the functional group for cross-linking, characterized in that the glass-transition temperature (Tg) of the polymer at the center of the particle is different from the Tg of the polymer at the surface of the particle, the difference being at least 55° C., and the Tg of the polymer having the highest Tg is at least 40° C.

    摘要翻译: 本发明涉及具有交联官能团的聚合物颗粒的水分散体,其可通过至少两种不同的烯键式不饱和单体的自由基乳液聚合获得,式M +的-OOC-CH = CHCOOR,其中R是C(6-22)烷基,M +是Na +,K +,Li +,NH4 +或质子化或季胺,以及具有至少两个能够与官能团反应的基团的共反应性化合物 交联,其特征在于,颗粒中心处的聚合物的玻璃化转变温度(Tg)与颗粒表面的聚合物的Tg不同,其差异为至少55℃,和 Tg最高的聚合物的Tg至少为40℃

    Aqueous dispersions of particles of polymers with a glass transition temperature gradient
    10.
    发明申请
    Aqueous dispersions of particles of polymers with a glass transition temperature gradient 失效
    具有玻璃化转变温度梯度的聚合物颗粒的水分散体

    公开(公告)号:US20010034400A1

    公开(公告)日:2001-10-25

    申请号:US09784915

    申请日:2001-02-16

    摘要: The invention pertains to an aqueous dispersion of particles of a polymer having a functional group for cross-linking, which is obtainable by a free radical emulsion polymerization of at least two different ethylenically unsaturated monomers, a surfactant of the formula Mnull.nullOOCnullCHnullCHCOOR, wherein R is C(6-22) alkyl and Mnullis Nanull, Knull, Linull, NH4null, or a protonated or quaternary amine, and a co-reactive compound having at least two groups capable of reacting with the functional group for cross-linking, characterized in that the glass-transition temperature (Tg) of the polymer at the center of the particle is different from the Tg of the polymer at the surface of the particle, the difference being at least 55null C., and the Tg of the polymer having the highest Tg is at least 40null C.

    摘要翻译: 本发明涉及具有交联官能团的聚合物颗粒的水分散体,其可通过至少两种不同的烯键式不饱和单体的自由基乳液聚合获得,式M +的-OOC-CH = CHCOOR,其中R是C(6-22)烷基,M +是Na +,K +,Li +,NH 4 +或质子化或季胺,以及具有至少两个能够与官能团反应的基团的共反应性化合物 用于交联,其特征在于,在颗粒中心处的聚合物的玻璃化转变温度(Tg)与颗粒表面处的聚合物的Tg不同,差值至少为55℃, Tg最高的聚合物的Tg至少为40℃。