High yield synthesis of hydroxyl-containing cationic photoinitiators
    61.
    发明授权
    High yield synthesis of hydroxyl-containing cationic photoinitiators 失效
    高收率合成含羟基阳离子光引发剂

    公开(公告)号:US5073643A

    公开(公告)日:1991-12-17

    申请号:US575276

    申请日:1990-08-30

    CPC classification number: C07C43/23

    Abstract: Synthesis use of a new class of diaryliodonium salt photo and thermal polymerization initiators in which the aryl groups are substituted with alkoxy group bearing hydroxy groups. Good to excellent yields are obtained of diaryliodonium salts in which the aryl groups are substituted with long chain alkoxy groups, which alkoxy groups also possess at least one hydroxyl moiety attached at the 2-position of an alkoxy group. The resultant salts have enhanced solubility when compared with their lower molecular weight counterparts. The hydroxyl groups serve as chain transfer agents; and, in cross linking UV-induced cationic polymerizations, the hydroxyl groups effect marked accelertion on polymerization rates. The salts also have excellent compatability with nonpolar monomers such as epoxidized oil and poly(1,2-butadience oxide) and provide further benefits when they are used along with copper cocatalysts in thermally curable polymer systems. In the latter form of cases, the secondary hydroxyl group serves as a reducing agent for the copper (II) complex.

    Abstract translation: 合成使用一类二芳基碘盐光聚合引发剂,其中芳基被带有羟基的烷氧基取代。 获得了芳基被长链烷氧基取代的二芳基碘鎓盐,这些烷氧基也具有连接在烷氧基的2位上的至少一个羟基部分。 当与其较低分子量的对应物相比时,所得的盐具有增强的溶解度。 羟基用作链转移剂; 并且,在交联UV诱导的阳离子聚合中,羟基对聚合速率的影响显着加快。 这些盐还与非极性单体如环氧化油和聚(1,2-丁二氧化物)具有优异的相容性,并且当它们与可热固化的聚合物体系中的铜助催化剂一起使用时提供进一步的益处。 在后一种情况下,仲羟基用作铜(II)络合物的还原剂。

    Polyimide molding compositions
    62.
    发明授权
    Polyimide molding compositions 失效
    聚酰亚胺模塑组合物

    公开(公告)号:US4609705A

    公开(公告)日:1986-09-02

    申请号:US703771

    申请日:1985-02-21

    CPC classification number: C08G73/12

    Abstract: A molding composition is provided comprising aromatic vinyl ether and maleimide. The cured composition exhibits high heat distortion temperatures and is easily processed into finished products with or without a catalyst.

    Abstract translation: 提供了包含芳族乙烯基醚和马来酰亚胺的模制组合物。 固化的组合物显示出高的热变形温度,并且容易地加工成具有或不具有催化剂的成品。

    Method for making silicone-organic block polymers
    64.
    发明授权
    Method for making silicone-organic block polymers 失效
    硅酮有机嵌段聚合物的制备方法

    公开(公告)号:US4584356A

    公开(公告)日:1986-04-22

    申请号:US667929

    申请日:1984-11-02

    CPC classification number: C08F283/124

    Abstract: A method is provided for making silicone-organic block polymers, such as polydimethylsiloxane-polystyrene block polymers resulting from the thermal generation of free-radicals in the presence of free-radical polymerizable organic monomer. A silicone prepolymer is used having chemically combined pinacolate groups the in backbone or terminal positions which are capable of generating free-radicals upon thermolysis and which retain chemically combined remnants of such pinacolate diradicals which serve as connecting sites for free-radical polymerized organic blocks.

    Abstract translation: 提供一种制备硅氧烷 - 有机嵌段聚合物的方法,例如在可自由基聚合的有机单体存在下由自由基的热产生产生的聚二甲基硅氧烷 - 聚苯乙烯嵌段聚合物。 使用硅氧烷预聚物,其具有化学结合的频哪醇基团,其在骨架或末端位置,其能够在热分解时产生自由基并且保留作为自由基聚合的有机嵌段的连接位点的这种频率对映体双基的化学组合残留物。

    Method for making diaryliodonium polyhalometalloid salts
    66.
    发明授权
    Method for making diaryliodonium polyhalometalloid salts 失效
    制备二芳基碘多卤代金属盐的方法

    公开(公告)号:US4329300A

    公开(公告)日:1982-05-11

    申请号:US163725

    申请日:1980-06-27

    CPC classification number: C07C25/18

    Abstract: A method is provided for making certain diaryliodonium salt photoinitiators, based on the initial formation of diaryliodonium perchlorate which is formed from a diaryliodonium bisulfate precursor. The diaryliodonium perchlorate is then reacted with a counter ion source, such as an alkali metal hexafluoro metalloid salt, to produce the desired diaryliodonium salt, which can be used as a photoinitiator. The iodonium salt photoinitiators made by the method of the present invention can be used to effect the cure of a variety of cationically polymerizable organic materials, such as epoxy resins.

    Abstract translation: 基于由二芳基碘鎓硫酸氢盐前体形成的高氯酸二芳基碘鎓的初步形成,提供了制备某些二芳基碘盐光引发剂的方法。 然后将高碘酸二芳基碘与抗衡离子源(例如碱金属六氟类准金属盐)反应,以产生可用作光引发剂的所需二芳基碘鎓盐。 通过本发明的方法制备的碘鎓盐光引发剂可用于实现各种阳离子聚合有机材料如环氧树脂的固化。

    Diaryliodonium salts
    67.
    发明授权
    Diaryliodonium salts 失效
    二芳基碘盐

    公开(公告)号:US4310469A

    公开(公告)日:1982-01-12

    申请号:US117726

    申请日:1980-02-01

    CPC classification number: C08G59/68 C07C17/12 C07C25/18 C08G59/306

    Abstract: Cationic polymerization of epoxy monomers or prepolymers can be achieved by use of certain radiation sensitive aromatic halonium salts. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.

    Abstract translation: 环氧单体或预聚物的阳离子聚合可以通过使用某些辐射敏感芳香族卤盐来实现。 提供可用作密封剂,涂料化合物,密封剂等的可固化组合物

    P, As, and Sb hexafluoride onium salts as photoinitiators
    69.
    发明授权
    P, As, and Sb hexafluoride onium salts as photoinitiators 失效
    P,As和Sb六氟鎓盐作为光引发剂

    公开(公告)号:US4250311A

    公开(公告)日:1981-02-10

    申请号:US137831

    申请日:1980-04-07

    CPC classification number: G03F7/029 C07F9/902 C08G59/68

    Abstract: Halogen onium salts, and onium salts of Group VA and V1A elements having an MF.sub.6.sup.- anion, where M is selected from P, As and Sb, have been found to exhibit unusual activity under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of organic resins and cyclic organic compounds.

    Abstract translation: 已经发现,在紫外光下,具有M,选自P,As和Sb的具有MF6-阴离子的组VA和V1A元素的卤素鎓盐和鎓盐呈现异常的活性。 当与各种有机树脂和环状有机化合物一起使用时,这些鎓盐可用作阳离子光引发剂。

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