Non-sintering epoxy resins prepared from triglycidyl ethers and
epihalohydrins
    2.
    发明授权
    Non-sintering epoxy resins prepared from triglycidyl ethers and epihalohydrins 失效
    由三缩水甘油醚和表卤代醇制备的非烧结环氧树脂

    公开(公告)号:US4672103A

    公开(公告)日:1987-06-09

    申请号:US829361

    申请日:1986-02-14

    IPC分类号: C08G59/06 H01B3/40

    CPC分类号: H01B3/40 C08G59/063

    摘要: Solid non-sintering epoxy resin products are prepared by reacting a trihydric phenol such as 1,1,1-tri(hydroxyphenyl)methane with an epihalohydrin such as epichlorohydrin in the presence of an alkali metal hydroxide such as sodium hydroxide. These epoxy resins are non-sintering solid resins useful in the preparation of electrical potting or molding compositions.

    摘要翻译: 通过在碱金属氢氧化物如氢氧化钠的存在下,使诸如1,1,1-三(羟基苯基)甲烷的三元酚与表卤代醇如表氯醇反应来制备固体非烧结环氧树脂产物。 这些环氧树脂是用于制备电灌封或模塑组合物的非烧结固体树脂。

    Anatomical model
    3.
    发明授权
    Anatomical model 失效
    解剖模型

    公开(公告)号:US4323350A

    公开(公告)日:1982-04-06

    申请号:US189805

    申请日:1980-09-22

    IPC分类号: G09B23/30

    CPC分类号: G09B23/30

    摘要: An anatomical model comprises a plurality of molded sections of uniform thickness, each of which has a flesh appearance on one side and on the opposite side a colored photograph of an actual body specimen with the sections being adapted for serial assembly to provide a realistic appearing sectioned body model suitable for anatomical study.

    摘要翻译: 解剖模型包括多个均匀厚度的模制部分,每个模制部分在一侧具有肉体外观,在相对侧具有实际身体标本的彩色照片,其中该部分适于串联组合以提供实际出现的切片 身体模型适合解剖学研究。

    Method for preparing advanced epoxy or phenoxy resins with low aliphatic
halide content
    4.
    发明授权
    Method for preparing advanced epoxy or phenoxy resins with low aliphatic halide content 失效
    制备低脂肪卤化物含量的高级环氧树脂或苯氧基树脂的方法

    公开(公告)号:US4684701A

    公开(公告)日:1987-08-04

    申请号:US911197

    申请日:1986-09-24

    CPC分类号: C08G59/066

    摘要: Advanced epoxy resins having a low total aliphatic halide content are prepared by reacting an epoxy resin having an average of more than one 1,2-epoxide group per molecule with a material having an average of more than one phenolic hydroxyl group per molecule in the presence of a solvent having at least one aliphatic hydroxide group per molecule and a catalytic quantity of an alkali metal hydroxide. These low aliphatic halide-containing advanced epoxy resins are useful in formulations for preparing laminates, moldings, pottings and coatings for the electronics industry.

    摘要翻译: 具有低总脂肪族卤化物含量的高级环氧树脂通过使每分子平均具有多于一个1,2-环氧基的环氧树脂与每分子平均具有多于一个酚羟基的材料在存在下反应来制备 每分子具有至少一个脂族氢氧基的溶剂和催化量的碱金属氢氧化物。 这些低脂肪族卤化物的先进环氧树脂可用于制备用于电子工业的层压板,模制品,灌封件和涂层的配方。

    Process for preparing epoxy resins containing low levels of total halide
    5.
    发明授权
    Process for preparing epoxy resins containing low levels of total halide 失效
    制备含有低水平总卤化物的环氧树脂的方法

    公开(公告)号:US4585838A

    公开(公告)日:1986-04-29

    申请号:US773500

    申请日:1985-09-09

    IPC分类号: C08G59/00 C08G59/14

    CPC分类号: C08G59/00

    摘要: The total halide content of epoxy resins is reduced by heating a resin containing halide dissolved in a solvent mixture containing at least one ketone, at least one aromatic hydrocarbon and optionally at least one compound containing at least one aliphatic hydroxyl group in the presence of an alkali metal hydroxide for a time sufficient to reduce the total halide content.

    摘要翻译: 环氧树脂的总卤化物含量通过在碱存在下加热溶解在含有至少一种酮,至少一种芳族烃和任选的至少一种含有至少一个脂族羟基的化合物的溶剂混合物中的卤化物来降低 金属氢氧化物足以减少总卤化物含量的时间。