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83 条记录 (耗时 0.035 秒)

    Radical polymerizable compositions containing polycyclic olefins
    11.
    发明授权
    Radical polymerizable compositions containing polycyclic olefins 失效

    公开(公告)号：US06521731B2

    公开(公告)日：2003-02-18

    申请号：US09779694

    申请日：2001-02-07

    申请人： Stephen M. Dershem ,  Kevin J. Forrestal

    发明人： Stephen M. Dershem ,  Kevin J. Forrestal

    IPC分类号： C08F12240

    CPC分类号： C08F232/08

    摘要： In accordance with the present invention, there are provided free-radical polymerizable compositions comprising polycyclic olefins, wherein the polycyclic olefins contain little, if any, cyclopentenyl unsaturation. As a result, these olefins are sufficiently reactive with the propagating free-radicals during cure to provide a highly crosslinked thermoset resin. Moreover, invention compositions comprise high molecular weight polycyclic olefins having low volatility. Accordingly, the observed undesirable weight loss upon cure of prior art thermosetting compositions is considerably reduced. Further provided by the present invention are compositions comprising functionalized polycyclic olefin monomers. These functionalized olefin monomers provide additional benefits such as increased adhesion to a variety of surfaces and greater control over glass transition temperatures.

    Method for isomerization of arylpropargyl ether monomers and uses therefor
    12.
    发明授权
    Method for isomerization of arylpropargyl ether monomers and uses therefor 失效
    芳基炔丙基醚单体的异构化方法及用途

    公开(公告)号：US5861111A

    公开(公告)日：1999-01-19

    申请号：US684148

    申请日：1996-07-19

    申请人： Stephen M. Dershem

    发明人： Stephen M. Dershem

    IPC分类号： H01M4/52

    CPC分类号： C07D311/58

    摘要： In accordance with the present invention, it has been discovered that arylpropargyl ethers can readily be isomerized to produce benzopyrans, by subjecting a defined group of aryl propargyl compounds to isomerization conditions in suitable solvent. Invention isomerization process allows the production of a good yield of a variety of benzopyran materials, free of contaminating diluent. Benzopyrans prepared in accordance with the present invention are useful for the preparation of adhesive compositions, microelectronic devices, and the like.

    摘要翻译： 根据本发明，已经发现芳基炔丙基醚可以容易地异构化以产生苯并吡喃，通过在合适的溶剂中使定义的芳基炔丙基化合物进行异构化条件。 本发明的异构化方法可以生产出不含污染稀释剂的各种苯并吡喃材料的良好产率。 根据本发明制备的苯并吡喃可用于制备粘合剂组合物，微电子器件等。

    Water washable soldering paste
    13.
    发明授权
    Water washable soldering paste 失效
    可水洗焊膏

    公开(公告)号：US5064480A

    公开(公告)日：1991-11-12

    申请号：US389489

    申请日：1989-08-04

    申请人： Stephen M. Dershem ,  Richard R. Weaver

    发明人： Stephen M. Dershem ,  Richard R. Weaver

    IPC分类号： B23K35/36

    CPC分类号： B23K35/36 ,  B23K35/3612 ,  B23K35/3615

    摘要： Improved soldering paste for surface mounting of electronic components comprises a novel fluxing agent selected from formylated polyhydric compounds. The paste enables circuit boards to be washed with water to remove flux residues.

    摘要翻译： 用于表面安装电子部件的改进的焊膏包括选自甲酰化多元化合物的新型助熔剂。 该浆料使得电路板可以用水洗涤以除去助焊剂残留物。

    MALEIMIDE-FUNCTIONAL MONOMERS IN AMORPHOUS FORM
    16.
    发明申请
    MALEIMIDE-FUNCTIONAL MONOMERS IN AMORPHOUS FORM 有权
    非晶形式的马来酰亚胺官能单体

    公开(公告)号：US20120049106A1

    公开(公告)日：2012-03-01

    申请号：US13218406

    申请日：2011-08-25

    申请人： Stephen M. Dershem

    发明人： Stephen M. Dershem

    IPC分类号： C08F222/40 ,  C09J9/02 ,  C09J9/00 ,  C09J4/00 ,  C08F2/46

    CPC分类号： C08F2/48 ,  C08F222/40 ,  C09J4/00 ,  C09J9/02

    摘要： The present invention provides amorphous maleimide-bismaleimide hybrid mixtures and methods for synthesizing such mixtures by condensation of diamine compounds with maleic anhydride along with one or more additional anhydrides. The invention provides a route to get passed the high melting point and the solubility issues of bismaleimide resins, yet to still obtain the good thermo-mechanical properties of these valuable molecules.

    摘要翻译： 本发明提供无定形马来酰亚胺 - 双马来酰亚胺混合物混合物和通过二胺化合物与马来酸酐与一种或多种另外的酸酐的缩合来合成这种混合物的方法。 本发明提供了通过双马来酰亚胺树脂的高熔点和溶解度问题的途径，仍然获得了这些有价值的分子的良好的热机械性能。

    Mono-functional monomers and methods for use thereof
    19.
    发明申请
    Mono-functional monomers and methods for use thereof 有权
    单官能单体及其使用方法

    公开(公告)号：US20070155869A1

    公开(公告)日：2007-07-05

    申请号：US11639625

    申请日：2006-12-14

    申请人： Stephen M. Dershem ,  Gina Hoang ,  Melin Lu

    发明人： Stephen M. Dershem ,  Gina Hoang ,  Melin Lu

    IPC分类号： C08G73/10

    CPC分类号： C09J179/085 ,  C09J179/02

    摘要： The invention is based on the discovery that adhesive compositions containing certain low-viscosity, mono-ethylenically unsaturated monomers have surprisingly good cure parameters, resulting in very little weight loss upon cure. Many of these monofunctional monomers used alone or in combination with other monofunctional monomers described herein have high glass transition temperatures when cured. Moreover, since these monomers are monofunctional the crosslink density of the adhesive composition does not increase (relative to multi-functional monomers), which in turns results in lower stress, lower modulus adhesive compositions. As such, these monomers are useful in a variety of thermoset adhesive compositions, such as for example, die attach adhesive compositions.

    摘要翻译： 本发明基于以下发现：含有某些低粘度单烯属不饱和单体的粘合剂组合物具有惊人的良好固化参数，导致固化时重量损失非常小。 单独使用或与本文所述的其它单官能单体组合使用的许多这些单官能单体在固化时具有高的玻璃化转变温度。 此外，由于这些单体是单官能的，粘合剂组合物的交联密度不会增加（相对于多官能单体），这又导致较低的应力，较低的模量粘合剂组合物。 因此，这些单体可用于各种热固性粘合剂组合物，例如模具附着粘合剂组合物。

    Imide-linked maleimide and polymaleimide compounds
    20.
    发明授权
    Imide-linked maleimide and polymaleimide compounds 有权
    酰亚胺化马来酰亚胺和聚马来酰亚胺化合物

    公开(公告)号：US07208566B2

    公开(公告)日：2007-04-24

    申请号：US10835911

    申请日：2004-04-30

    申请人： Farhad G. Mizori ,  Stephen M. Dershem

    发明人： Farhad G. Mizori ,  Stephen M. Dershem

    IPC分类号： C08G69/08 ,  C08G73/10 ,  C08G73/14

    CPC分类号： C07D207/452 ,  C08G73/12 ,  C08G73/125 ,  C08L79/085 ,  C09J179/085

    摘要： The invention is based on the discovery that a remarkable improvement in the performance of maleimide thermosets can be achieved through the incorporation of imide-extended mono-, bis-, or polymaleimide compounds. These imide-extended maleimide compounds are readily prepared by the condensation of appropriate anhydrides with appropriate diamines to give amine terminated compounds. These compounds are then condensed with excess maleic anhydride to yield imide-extended maleimide compounds.

    摘要翻译： 本发明基于以下发现：通过引入酰亚胺延伸的单 - ，双 - 或聚马来酰亚胺化合物可以实现马来酰亚胺热固性材料性能的显着改进。 这些酰亚胺扩展的马来酰亚胺化合物可以通过将适当的酸酐与合适的二胺缩合得到胺封端的化合物而容易地制备。 然后将这些化合物与过量的马来酸酐缩合，得到酰亚胺扩展的马来酰亚胺化合物。