Self-adhesive sheet-like structures, process for their preparation and
their use
    28.
    发明授权
    Self-adhesive sheet-like structures, process for their preparation and their use 失效
    自粘片状结构,其制备方法及其用途

    公开(公告)号:US4661099A

    公开(公告)日:1987-04-28

    申请号:US669402

    申请日:1984-11-08

    摘要: The present disclosure is concerned with self-adhesive sheet-like structures made by adhering an adhesive polyurethane gel material to a supporting substrate and the utilization of such structures in the medical field to adhere materials such as plasters, wound dressings and appliances to the human body, and in other fields to connect articles, such as the parts of a fractured or cracked object, to one another by means of an adhesive bond. The gel is formed by immobilizing a high molecular weight polymeric polyol in the matrix of a covalently crosslinked polyurethane which is prepared by reacting polyisocyanates having an isocyanate functionality of at least 2 with higher molecular weight polyhydroxyl compounds having a hydroxyl functionality of at least 3. These reactants are selected in accordance with the following formula which relates the isocyanate number, K, (isocyanate to hydroxyl equivalents ratio times 100) to the average functionalities of the polyisocyanates (F.sub.I) and of the polyhydroxyl compounds (F.sub.P) as follows: ##EQU1## wherein X is less than or equal to 120. These reactants are also selected to give a weight ratio of matrix to immobilized polymeric polyol of between about 15:85 and 62:38.

    摘要翻译: 本公开涉及通过将粘性聚氨酯凝胶材料粘附到支撑基底而制成的自粘片状结构,并且在医疗领域中利用这种结构将诸如膏药,伤口敷料和器具等材料粘附到人体上 ,并且在其他领域中,通过粘合剂粘合将诸如断裂或裂纹物体的部分的物品彼此连接。 凝胶通过将高分子量聚合物多元醇固定在共价交联的聚氨酯的基质中而形成,该聚合物多羟基化合物通过使具有至少2个异氰酸酯官能度的多异氰酸酯与具有至少3个羟基官能度的较高分子量多羟基化合物反应而制备。 根据以下公式选择反应物:将异氰酸酯数K(异氰酸酯与羟基当量比100倍)相对于多异氰酸酯(FI)和多羟基化合物(FP)的平均官能度如下所述: 其中X小于或等于120.这些反应物也被选择为使基质与固定的聚合多元醇的重量比在约15:85和62:38之间。

    Process for the adhesion-activation of polyamide substrates for
electroless metallization
    29.
    发明授权
    Process for the adhesion-activation of polyamide substrates for electroless metallization 失效
    用于化学镀金属化的聚酰胺基材的粘附活化方法

    公开(公告)号:US4568571A

    公开(公告)日:1986-02-04

    申请号:US665242

    申请日:1984-10-26

    摘要: A mild activation process for the adhesion-activation of polyamide mouldings for electroless metallization comprises treating the substrates, successively or simultaneously, with the solution of a mixture of CaCl.sub.2, LiCl and/or MgCl.sub.2 with AlCl.sub.3, FeCl.sub.3 and/or TiCl.sub.4 in a lower alcohol and with an activator solution based on inorganic complex compounds of the formulaM.sup.n+ [E.sup.m+ Hal.sub.z.sup.- ]in whichM represents two hydrogen or alkali metal atoms or one alkaline earth metal atom,Hal represents a halogen, preferably Cl, andE represents a noble metal atom of the 1st or 8th subgroup of the periodic table, having the valency m and the coordination number z (z-m=n),or with customary colloidal or ionic systems of these noble metals.

    摘要翻译: 用于无电镀金属化的聚酰胺模制品的粘合活化的温和活化方法包括用CaCl 2,LiCl和/或MgCl 2的混合物与AlCl 3,FeCl 3和/或TiCl 4在低级醇中的溶液连续或同时地处理底物 和基于式Mn + [Em + Halz-]的无机络合物的活化剂溶液,其中M表示两个氢或碱金属原子或一个碱土金属原子,Hal表示卤素,优选Cl,E表示贵金属 具有化合价m和配位数z(zm = n)的元素周期表第1或第8族的金属原子,或与这些贵金属的常规胶体或离子体系。

    Aqueous dispersions containing a synergistic dispersant combination
    30.
    发明授权
    Aqueous dispersions containing a synergistic dispersant combination 失效
    含有协同分散剂组合的水分散体

    公开(公告)号:US5266622A

    公开(公告)日:1993-11-30

    申请号:US970524

    申请日:1992-11-02

    摘要: Aqueous dispersions of fillers and/or pigments contain a dispersant combination of the following composition:A) 40 to 95 by weight of a water-soluble polymer,B) 0 to 60 by weight of a non-ionic alkylene oxide adduct having an average molecular weight of 200 to 100,000,C) 0 to 60% by weight of compounds of the formulae (I), (II) and/or (III) ##STR1## in which R.sub.1 represents an optionally substituted aliphatic, aromatic or araliphatic radical having 1 to 50 C atoms,z in each case independently of one another represents an integer from 1 to 10 andx represents hydrogen, a monovalent metal ion or an optionally substituted ammonium ion andD) 0 to 60% by weight of a compound of the formula (IV) ##STR2## in which Q represents hydrogen, ##STR3## in which Y in each case independently of one another represents hydrogen, a monovalent metal ion or an optionally substituted ammonium ion,R.sub.2 in each case independently of one another represents hydrogen, an optionally substituted alkyl radical having 1 to 12 C atoms or a radical of the type --CH.sub.2 --COOR.sub.3 or --CH.sub.2 CH.sub.2 COOR.sub.3 andR.sub.3 in each case independently of one another represents hydrogen, Y or an optionally substituted alkyl radical having 1 to 25 C atoms,where the sum A) +B) +C) +D) gives 100% by weight and at least one of the components B), C) and D) is different from zero.

    摘要翻译: 填料和/或颜料的水分散体含有以下组成的分散剂组合:A)40-95重量%的水溶性聚合物,B)0-60重量%的非离子环氧烷加成物,其平均分子量 重量200至100,000,C)0至60重量%的式(I),(II)和/或(III)的化合物R1(SO3X)z(I)R1(OSO3X)z(II)R1 OPO 3 X 2)z,(III)其中R 1表示具有1至50个C原子的任选取代的脂族,芳族或芳脂族基团,z在每种情况下彼此独立地表示1至10的整数,x表示氢,单价金属 离子或任选取代的铵离子和D)0至60重量%的式(IV)化合物其中Q表示氢,其中Y在每种情况下独立于彼此 代表氢,一价金属离子或任选取代的铵离子,各自彼此独立地表示氢, 具有1至12个C原子的任选取代的烷基或类型为-CH 2 -COOR 3或-CH 2 CH 2 COOR 3的基团和R 3在各自彼此独立地表示氢,Y或任选取代的具有1至25个C原子的烷基, 其中总和A)+ B)+ C)+ D)给出100重量%,并且组分B),C)和D)中的至少一个不同于零。