Cleaning process
    3.
    发明授权
    Cleaning process 失效
    清洁过程

    公开(公告)号:US5849106A

    公开(公告)日:1998-12-15

    申请号:US70308

    申请日:1993-05-26

    摘要: An industrial cleaning process in which a contaminant comprising soldering flux and/or adhesive tape residue is removed from a substrate contaminated therewith, for example, a printed circuit board contaminated with rosin flux, comprising: (A) contacting the substrate with a terpene-based cleaning composition which is substantially free of water-soluble organic material, for example, a surfactant, for a period of time sufficient to solubilize the contaminant; (B) removing the composition and solubilized contaminant from the substrate by contact with water having a temperature of about 70.degree. F. to about 140.degree. F. (but preferably lower) for a period of time of no longer than about 10 minutes to provide a substrate having a contamination rating of no greater than about 14 micrograms NaCl equivalent/square inch (MIL-P-28809A), and to thereby form a mixture comprising the composition, contaminant and water; and (C) separating the water from said mixture, the separated water being substantially free of water-soluble organic material and having a chemical oxygen demand of no greater than about 1,000 ppm. and also a cleaning process utilizing a cleaning composition comprising a major amount of a monobasic ester to clean surfaces that are contaminated with an organic residue.

    摘要翻译: 一种工业清洁方法,其中包含焊剂和/或胶带残留物的污染物从被污染的基底例如被松香助焊剂污染的印刷电路板上除去,包括:(A)使基材与萜烯基 清洁组合物,其基本上不含水溶性有机材料,例如表面活性剂,持续足以溶解污染物的时间; (B)通过与温度为约70°F至约140°F(但优选较低)的水接触不超过约10分钟的时间,从基材中除去组合物和溶解的污染物,以提供 污染等级不超过约14微克NaCl当量/平方英寸(MIL-P-28809A)的底物,从而形成包含组合物,污染物和水的混合物; 和(C)从所述混合物中分离水,所分离的水基本上不含水溶性有机材料,并且化学需氧量不大于约1,000ppm。 以及使用包含主要量的一元酯的清洁组合物以清洁被有机残余物污染的表面的清洁方法。

    Polyamide resin dispersions and method for the manufacture thereof
    5.
    发明授权
    Polyamide resin dispersions and method for the manufacture thereof 失效
    聚酰胺树脂分散体及其制造方法

    公开(公告)号:US4886844A

    公开(公告)日:1989-12-12

    申请号:US151733

    申请日:1988-02-03

    申请人: Michael E. Hayes

    发明人: Michael E. Hayes

    摘要: A method is provided for the preparation of stable aqueous dispersions of non-solvated, un-neutralized, low amine, low acid number polymerized fatty acid polyamide resins. In the preferred method of this invention, a polymerized fatty acid polyamide resin which has been prepared so as to have a low acid and low amine number is liquified by heating the polyamide resin to a temperature where it is at or above its melting point. The liquified polymerized fatty acid polyamide resin is then blended with a predetermined amount of water which is heated to a temperature such that the resulting blend will have a temperature above the melting point of the polyamide resin. A cationic surfactant which is the salt of the amine of the formula:R--NH--CH.sub.2).sub.n.sbsb.1 (NH--CH.sub.2).sub.n.sbsb.2).sub.n.sbsb.3 NH.sub.2wherein R represents an alkyl having 16-20 carbon atoms and n.sub.1 and n.sub.2 are the same or different and each represents a whole number from 1-3 and n.sub.3 is 0 or 1, is included in the mixture. The resulting mixture is then subjected to sufficient comminuting forces to form an emulsion in which droplets of the polyamide resin have a volume average size distribution of about 20 microns or less in diameter and preferably 5 microns or less. The resulting emulsion is then cooled to a temperature below the melting point of the polyamide resin causing the emulsified droplets of the polyamide resin to solidify as finely divided particles which are dispersed uniformly through the aqueous phase. The resulting stable aqueous dispersions of the polymerized fatty acid polyamide resin which are obtained are especially useful for hot melted adhesive applications, when utilized in coatings, inks, and the like.

    Polyamide resin dispersions and method for the manufacture thereof
    6.
    发明授权
    Polyamide resin dispersions and method for the manufacture thereof 失效
    聚酰胺树脂分散体及其制造方法

    公开(公告)号:US4853421A

    公开(公告)日:1989-08-01

    申请号:US320683

    申请日:1989-03-08

    申请人: Michael E. Hayes

    发明人: Michael E. Hayes

    摘要: A method is provided for the preparation of stable aqeuous dispersions of non-solvated, un-neutralized, low amine, low acid number polymerized fatty acid polyamider resins. In the preferred method of this invention, a polymerized fatty acid polyamide resin which has been prepared so as to have a low acid and low amine number is liquefied by heating the polyamide resin to a temperature where it is at or above its melting point. The liquified polymerized fatty acid polyamide resin is then blended with a predetermined amount of water which is heated to a temperature such that the resulting blend will have a temperature above the melting point of the polyamide resin. A cationic surfactant which is the salt of the amide of the formula:R--NH--CH.sub.2).sub.n.sbsb.1 (NH--CH.sub.2).sub.n.sbsb.2).sub.n.sbsb.3 NH.sub.2wherein R represents an alkyl having 16-20 carbon atoms and n.sub.1 and n.sub.2 are the same or different and each represents a whole number from 1-3 and n.sub.3 is 0 or 1, is included in the mixture. The resulting mixture is then subjected to sufficient comminuting forces to form an emulsion in which droplets of the polyamide resin have a volume average size distribution of about 20 microns or less in diameter and preferably 5 microns or less. The resulting emulsion is then cooled to a temperature below the melting point of the polyamide resin causing the emulsified droplets of the polyamide resin to solidify as finely divided particles which are dispersed uniformly through the aqueous phase. The resulting stable aqueous dispersions of the polymerized fatty acid polyamide resin which are obtained are especially useful for hot melted adhesive applications, when utilized in coatings, inks, and the like.

    摘要翻译: 提供了一种制备非溶剂化,未中和,低胺,低酸值聚合脂肪酸聚酰胺树脂的稳定分散体的方法。 在本发明的优选方法中,通过将聚酰胺树脂加热至其熔点以上的温度,使已经制备成具有低酸值和低胺值的聚合脂肪酸聚酰胺树脂液化。 然后将液化的聚合脂肪酸聚酰胺树脂与预定量的水混合,加热到一定温度,使得所得共混物的温度高于聚酰胺树脂的熔点。 一种阳离子表面活性剂,其为下式的酰胺的盐:R-NH-CH 2)n1(NH-CH 2)n2)n3NH 2其中R表示具有16-20个碳原子的烷基,n1和n2相同或不同, 各自表示1-3的整数,n3为0或1,包括在混合物中。 然后将所得混合物进行足够的粉碎力以形成乳液,其中聚酰胺树脂的液滴具有直径约20微米或更小,优选5微米或更小的体积平均尺寸分​​布。 然后将所得乳液冷却至低于聚酰胺树脂的熔点的温度,导致聚酰胺树脂的乳化液滴固化成均匀分散在水相中的细碎颗粒。 所获得的稳定的聚合脂肪酸聚酰胺树脂的水性分散体当用于涂料,油墨等时,特别适用于热熔粘合剂应用。

    Neutral aqueous cleaning composition
    10.
    发明授权
    Neutral aqueous cleaning composition 失效
    中性水性清洁组合物

    公开(公告)号:US5705472A

    公开(公告)日:1998-01-06

    申请号:US503810

    申请日:1995-07-18

    摘要: An aqueous cleaning composition having a pH of about 6 to about 8 and comprising a solution of the following ingredients: water, an organic solvent and an imidazoline-based cationic surfactant, each present in an amount effective to dissolve adherent soils from a substrate; and a nonionic surfactant in an amount sufficient to maintain said cationic surfactant in solution; and also a weak organic acid in an amount sufficient to impart to the composition said pH; wherein said composition is substantially free of any material which has an ozone-depletion factor of greater than about 0.15 and wherein said composition is substantially free of any material which would tend to form a solid with any of the ingredients comprising the composition, and its use to clean metallic and non-metallic surfaces.

    摘要翻译: 一种pH为约6至约8的水性清洁组合物,其包含以下成分的溶液:水,有机溶剂和咪唑啉类阳离子表面活性剂,其各自以有效溶解粘附的土壤的量来自底物; 和足以将所述阳离子表面活性剂保持在溶液中的量的非离子表面活性剂; 并且还具有足以赋予所述组合物所述pH的量的弱有机酸; 其中所述组合物基本上不含任何具有大于约0.15的臭氧消耗因子的材料,并且其中所述组合物基本上不含任何可能与包含所述组合物的任何成分形成固体的材料,其用途 清洁金属和非金属表面。