Complete ether capping of oligomeric polyphenols
    3.
    发明授权
    Complete ether capping of oligomeric polyphenols 失效
    完成低聚多酚的醚封端

    公开(公告)号:US4871831A

    公开(公告)日:1989-10-03

    申请号:US126314

    申请日:1987-11-30

    摘要: A method is presented to prepare totally functionalized ether-capped oligomeric polyphenols without molecular weight fractionation. The products generally are very low in inorganic salts and are characterized by the absence of volatiles leading to void formation in their subsequent curing. The success of the method rests upon conducting the reaction under totally homogeneous conditions throughout.

    摘要翻译: 提出了一种无需分子量分级制备完全功能化的乙烯基封端的低聚多酚的方法。 产物通常在无机盐中非常低,并且其特征在于没有挥发物在其后续固化中导致空隙形成。 该方法的成功取决于在完全均匀的条件下进行反应。

    Vinyl-benzyl ethers of phenol-dicyclopentadiene adducts as new
thermosetting resins for composites
    4.
    发明授权
    Vinyl-benzyl ethers of phenol-dicyclopentadiene adducts as new thermosetting resins for composites 失效
    苯酚 - 二环戊二烯加成物的乙烯基 - 苄基醚作为复合材料的新型热固性树脂

    公开(公告)号:US4824920A

    公开(公告)日:1989-04-25

    申请号:US126312

    申请日:1987-11-30

    IPC分类号: C08G61/00 H05K1/03 C08G61/12

    CPC分类号: C08G61/00 H05K1/034

    摘要: The resins resulting from converting dicyclopentadiene-phenol adducts to their corresponding vinylbenzyl ethers are an excellent matrix in which to embed fibers to produce a composite. Such resins, especially as a blend of materials with varying molecular weight distribution, are amorphous materials whose glass transition temperature is well under the curing temperature, and whose solubility permits solutions with high solids content so as to afford coatings with high resin content. The extensively crosslinked polymer resulting from therma, photochemical, or free radical initiated polymerization has excellent thermal and electrical properties for use in multilayer circuit boards.

    摘要翻译: 将二环戊二烯 - 苯酚加合物转化成其相应的乙烯基苄基醚所产生的树脂是嵌入纤维以生产复合材料的优异基体。 这种树脂,特别是作为具有不同分子量分布的材料的混合物,是玻璃化转变温度好于固化温度的无定形材料,并且其溶解度允许高固含量的溶液,以便提供具有高树脂含量的涂层。 由热,光化学或自由基引发的聚合产生的广泛交联的聚合物具有优异的用于多层电路板的热和电特性。

    Substituted cyanoguanidines as curing agents for epoxy resins
    5.
    发明授权
    Substituted cyanoguanidines as curing agents for epoxy resins 失效
    取代的氰基胍作为环氧树脂的固化剂

    公开(公告)号:US5387656A

    公开(公告)日:1995-02-07

    申请号:US153401

    申请日:1993-11-16

    CPC分类号: C08G59/4021 C07C279/28

    摘要: A curing agent for epoxy resins having improved solubility characteristics has the formula ##STR1## where R is --CH.sub.2 C.sub.6 H.sub.4 X or --CH.sub.2 CH.sub.2 C.sub.6 H.sub.4 X,and X is either --H, --CH.sub.3, --OCH.sub.3, --OH, or --NY,and where Y is --H or CH.sub.3.Such substituted cyanoguanidines are soluble in various solvents and do not require the use of undesirable solvents necessary with cyanoguanidine (dicyanodiamide) itself.

    摘要翻译: 具有改善的溶解度特性的环氧树脂的固化剂具有式“IMAGE”,其中R是-CH 2 C 6 H 4 X或-CH 2 CH 2 C 6 H 4 X,X是-H,-CH 3,-OCH 3,-OH或-NY,其中Y是 - H或CH3。 这种取代的氰基胍可溶于各种溶剂中,并且不需要使用氰基胍(二氰基二酰胺)本身所需的不需要的溶剂。

    Method of selective esterification
    6.
    发明授权
    Method of selective esterification 失效
    选择性酯化方法

    公开(公告)号:US07368593B1

    公开(公告)日:2008-05-06

    申请号:US10920514

    申请日:2004-08-18

    IPC分类号: C07C69/88

    CPC分类号: C07C67/11 C07C69/732

    摘要: A method of preparing a compound of formula I wherein R is a hydrocarbon and n is an integer from 1 to 5, including the steps of: contacting a compound of formula II with a compound selected from the group consisting of amines, and carbonates, bicarbonates, and hydroxides of alkali metals, and combinations thereof, in a solvent to produce a salt of a compound of formula II; treating the salt of the compound of formula II in a polar, aprotic solvent with an organic halide having a formula R—X, wherein X is selected from chlorine, bromine, iodine, and combinations thereof, to produce an ester of formula I; isolating a reaction product including the ester of formula I from the solvent by precipitation or solvent extraction; and purifying the compound of formula I, is disclosed.

    摘要翻译: 一种制备式I化合物的方法,其中R是烃,n是1至5的整数,包括以下步骤:使式II化合物与选自胺和碳酸酯,碳酸氢盐的化合物接触 ,和碱金属的氢氧化物及其组合在溶剂中以产生式II化合物的盐; 在极性非质子溶剂中用具有式R-X的有机卤化物处理式II化合物的盐,其中X选自氯,溴,碘及其组合,得到式I的酯; 通过沉淀或溶剂萃取从溶剂中分离包括式I的酯的反应产物; 并公开了式I化合物的纯化。

    Ethers of the condensation products of phenoldicyclopentadiene adducts
with aldehydes and ketones as thermosetting resins
    7.
    发明授权
    Ethers of the condensation products of phenoldicyclopentadiene adducts with aldehydes and ketones as thermosetting resins 失效
    苯酚环戊二烯加成物与醛和酮作为热固性树脂的缩合产物的醚

    公开(公告)号:US4804721A

    公开(公告)日:1989-02-14

    申请号:US126378

    申请日:1987-11-30

    摘要: The resins resulting from converting the phenol-formaldehyde type condensation products of dicyclopentadiene-phenol adducts with selected aldehydes and ketones to their corresponding vinylbenzyl ethers are an excellent matrix in which to embed fibers to produce a composite. Such resins, especially as a blend of materials with varying molecular weight distribution, are amorphous materials whose glass transition temperature is well under the curing temperature, and whose solubility permits solutions with high solids content so as to afford coatings with high resin content. The extensively crosslinked polymer resulting from thermal, photochemical, or free radical initiated polymerization has excellent thermal and electrical properties for use in multilayer circuit boards.

    摘要翻译: 将二环戊二烯 - 苯酚加合物的酚醛缩合产物与选择的醛和酮转化成其相应的乙烯基苄基醚所产生的树脂是嵌入纤维以生产复合材料的优良基体。 这种树脂,特别是作为具有不同分子量分布的材料的混合物,是玻璃化转变温度好于固化温度的无定形材料,并且其溶解度允许高固含量的溶液,以便提供具有高树脂含量的涂层。 由热,光化学或自由基引发的聚合产生的广泛交联的聚合物具有优异的用于多层电路板的热和电特性。