Epoxy resin curing indicator composition
    1.
    发明授权
    Epoxy resin curing indicator composition 有权
    环氧树脂固化指示剂组成

    公开(公告)号:US08809422B2

    公开(公告)日:2014-08-19

    申请号:US13391964

    申请日:2010-08-26

    IPC分类号: C08L63/00 C08G59/50 C08L71/00

    摘要: Compositions comprising at least one epoxy resin and/or reactive diluents, at least one hardener for the at least one epoxy resin, at least one curing indicator, wherein the color of the composition changes depending on the curing degree, a process for determining sufficient cure of a composition comprising providing a composition comprising at least one epoxy resin and a hardener for the epoxy resin, adding a curing indicator, applying curing conditions to the colored composition until the composition changes its color and use of polymeric colorants as curing degree indicator, wherein the curing indicator is a polymeric colorant consisting of chromophores which are chemically bound to polymers having reactive groups.

    摘要翻译: 包含至少一种环氧树脂和/或反应性稀释剂的组合物,用于至少一种环氧树脂的至少一种硬化剂,至少一种固化指示剂,其中所述组合物的颜色根据固化程度而变化,确定足够固化的方法 的组合物,其包括提供包含至少一种环氧树脂和用于环氧树脂的硬化剂的组合物,添加固化指示剂,向着色组合物施加固化条件,直到组合物改变其颜色并使用聚合物着色剂为固化度指示剂,其中 固化指示剂是由发色团组成的聚合物着色剂,其与具有反应性基团的聚合物化学键合。

    Titanates in the form of spherical particles and process for preparing
the same
    2.
    发明授权
    Titanates in the form of spherical particles and process for preparing the same 失效
    球形颗粒形式的钛酸盐及其制备方法

    公开(公告)号:US4755373A

    公开(公告)日:1988-07-05

    申请号:US895871

    申请日:1986-08-12

    IPC分类号: C01G23/00

    摘要: Titanates of barium, strontium, or mixed barium and strontium consisting essentially of solid, non-aggregated particles having diameters ranging from 0.05 to 1 micron and a narrow particle size distribution expressed by the polydispersity index, dw/dn, not greater than 1.20, where dw is the weight average diameter and dn is the number average diameter, said particles being essentially perfectly spherical with a total mean axial ratio of at least 0.93. These titanates are prepared by a process which comprises precipitating of a peroxidic precursor having the same morphological characteristics of the titanates. The peroxidic precursor is obtained by heating an alkaline solution comprising a complex of a titanium compound with a peroxidic compound, an M.sup.2+ compound, wherein M is Ba, Sr or mixtures thereof, and a compound Z capable of complexing with the M.sup.2+ ion oxidizable by the peroxidic compound under the conditions of reaction to produce soluble decomposition products and provide a homogeneous precipitation of the peroxidic precursor comprising titanium and M.sup.2+. Subsequently the precursor is heated to a temperature of at least 100.degree. C. to obtain the corresponding titanate having the above-indicated morphological characteristics.

    摘要翻译: 钡,锶或混合钡和锶的钛酸盐,主要由直径为0.05至1微米的固体,非凝聚颗粒和由多分散指数dw / dn表示的窄粒度分布组成,不大于1.20,其中 dw是重均直径,dn是数均直径,所述颗粒基本上是完全球形的,总平均轴比至少为0.93。 这些钛酸盐通过包括沉淀具有相同钛酸盐形态特征的过氧化物前体的方法制备。 过氧化物前体是通过加热包含钛化合物与过氧化合物的络合物的碱性溶液,M2 +化合物(其中M是Ba,Sr或其混合物)和能够与M2 +离子可络合的化合物Z 过氧化合物在产生可溶性分解产物的反应条件下提供包含钛和M2 +的过氧化物前体的均匀沉淀。 随后将前体加热到至少100℃的温度,以获得具有上述形态特征的相应的钛酸盐。

    Epoxy resin curing indicator composition
    4.
    发明申请
    Epoxy resin curing indicator composition 有权
    环氧树脂固化指示剂组成

    公开(公告)号:US20120225187A1

    公开(公告)日:2012-09-06

    申请号:US13391964

    申请日:2010-08-26

    IPC分类号: C08L63/02 C08G59/02 B05D3/10

    摘要: Compositions comprising at least one epoxy resin and/or reactive diluents, at least one hardener for the at least one epoxy resin, at least one curing indicator, wherein the colour of the composition changes depending on the curing degree, a process for determining sufficient cure of a composition comprising providing a composition comprising at least one epoxy resin and a hardener for the epoxy resin, adding a curing indicator, applying curing conditions to the coloured composition until the composition changes its colour and use of polymeric colourants as curing degree indicator, wherein the curing indicator is a polymeric colourant consisting of chromophores which are chemically bound to polymers having reactive groups.

    摘要翻译: 包含至少一种环氧树脂和/或反应性稀释剂的组合物,用于至少一种环氧树脂的至少一种硬化剂,至少一种固化指示剂,其中所述组合物的颜色根据固化程度而变化,确定足够固化的方法 的组合物,其包括提供包含至少一种环氧树脂和用于环氧树脂的硬化剂的组合物,添加固化指示剂,向着色组合物施加固化条件,直到组合物改变其颜色并使用聚合物着色剂为固化度指示剂,其中 固化指示剂是由发色团组成的聚合物着色剂,其与具有反应性基团的聚合物化学键合。