Forming copper clad laminates
    51.
    发明授权
    Forming copper clad laminates 失效
    成型铜包层压板

    公开(公告)号:US5518779A

    公开(公告)日:1996-05-21

    申请号:US302570

    申请日:1994-09-08

    Abstract: An improved method for preparing copper clad laminates from a copper substrate without a conventional or infrared oven. The method contains the steps of: (a) preparing a precursory coating composition which can be subsequently cured to become polyimide; (b) coating the precursory coating composition on a copper substrate; and (c) exposing the precursory coating composition to an infrared heater provided in an infrared curing apparatus. The infrared heater is selected such that it emits infrared rays of wavelengths correponding to the absorption spectrum of the precursory coating composition. A plurality of infrared heaters can be provided in the infrared curing apparatus, each can be designed to have a different effective heating length and/or operated at a uniquely predetermined surface temperature for optimum energy efficiency. Preferably, the precursory coating composition contains an upper layer consisting essentially of polyamic acid and a lower layer disposed between the upper layer and the copper substrate, the lower layer being a blended mixture of the polyamic acid and a modified bismaleimide.

    Abstract translation: 一种用于从铜基底制备铜箔层压板而不使用常规或红外线烘箱的改进方法。 该方法包括以下步骤:(a)制备可随后固化成聚酰亚胺的前体涂料组合物; (b)将前体涂料组合物涂布在铜基材上; 和(c)将前体涂料组合物暴露于设置在红外固化装置中的红外加热器。 选择红外线加热器,使得其发射相应于前体涂料组合物的吸收光谱的波长的红外线。 红外线固化装置中可以设置多个红外加热器,每个红外线加热器可设计成具有不同的有效加热长度和/或在独特的预定表面温度下操作以获得最佳的能量效率。 优选地,前体涂料组合物包含基本上由聚酰胺酸组成的上层和设置在上层和铜基材之间的下层,下层是聚酰胺酸和改性双马来酰亚胺的共混混合物。

    Pentaaryldiamine-containing bismaleimide compound and method of producing the compound
    59.
    发明授权
    Pentaaryldiamine-containing bismaleimide compound and method of producing the compound 有权
    含有五芳基二胺的双马来酰亚胺化合物及其制备方法

    公开(公告)号:US08088932B2

    公开(公告)日:2012-01-03

    申请号:US12427077

    申请日:2009-04-21

    CPC classification number: C07D207/452 H05K1/0346 H05K3/386

    Abstract: Provided is a pentaaryldiamine-containing bismaleimide compound of Formula (I): wherein Ar1 to Ar5 are independently C6-C12 aryl; and Ar4 and Ar5 are optionally substituted by one or more substitutent(s) selected from the group consisting of C1-C6 alkyl, C1-C6 alkoxy, and cyano. The compound of Formula (I) is obtained by a method including the steps of reacting a diamine with maleic anhydride in a solvent to form an amic acid, and cyclodehydrating the amic acid in the presence of a catalyst and a dehydrating agent. The compound of Formula (I) has a nonlinear and asymmetric structure, is amorphous, and is readily soluble in a variety of organic solvents so that the toughness of the product made there from can be improved and processing of the compound can be simplified.

    Abstract translation: 本发明提供式(I)的含五芳基二胺的双马来酰亚胺化合物:其中Ar 1至Ar 5独立地为C 6 -C 12芳基; 并且Ar 4和Ar 5任选被一个或多个选自C 1 -C 6烷基,C 1 -C 6烷氧基和氰基的取代基取代。 通过包括以下步骤的方法获得式(I)化合物:在溶剂中使二胺与马来酸酐反应形成酰胺酸,并在催化剂和脱水剂的存在下将酰胺酸化。 式(I)的化合物具有非线性和不对称结构,是无定形的,并且易溶于各种有机溶剂,从而可以改善制备的产品的韧性,并且可以简化化合物的加工。

    Method and formula for forming hyper-branched polymer
    60.
    发明授权
    Method and formula for forming hyper-branched polymer 有权
    形成超支化聚合物的方法和配方

    公开(公告)号:US08058358B2

    公开(公告)日:2011-11-15

    申请号:US12334334

    申请日:2008-12-12

    CPC classification number: C08G73/12 C08G83/005 C08L79/085

    Abstract: The invention provides hyper-branched polymer manufactured by adding a bismaleimide and a barbituric acid into a Brönsted base solution and reacting the mixture at 20 to 100° C. The formation may further include maleimide monomer and/or multi-maleimide monomer to modify the hyper-branched polymer properties. In addition, the barbituric acid is added to the reaction in a batch not initially charged with other reactants in a one-pot.

    Abstract translation: 本发明提供了通过将双马来酰亚胺和巴比妥酸加入到布朗斯台德碱溶液中制备的超支化聚合物,并使该混合物在20-100℃下反应。该形成物还可包括马来酰亚胺单体和/或多马来酰亚胺单体以改性超 支链聚合物性质。 此外,将巴比妥酸以一罐不经最初加入其它反应物的批次加入到反应中。

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