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    • 6. 发明授权
    • Process for the optical brightening of fibrous materials made from polyacrylonitrile
    • 从聚丙烯酸酯制成的纤维材料的光学加工方法
    • US3690947A
    • 1972-09-12
    • US3690947D
    • 1970-01-21
    • HOECHST AG
    • ROSCH GUNTERLINKE WERNERSMERZ OTTOSCHINZEL ERICH
    • C09B57/00C07D231/06D06L3/12D06M13/35C09K1/02
    • C07D231/06D06L4/679D06M13/35
    • FIBROUS MATERIALS MADE OF POLYMERS CONTAINING AT LEAST 85% OF POLYACRYLATONITRILE CAN BE OPTICALLY BRIGHTENED IN A SAID MATERIAL WITH A LIQUOR CONTAINING A 1-(4''-B-ALKOXYETHYL SULFONYL)-PHENYL-3-B-CHLOROPHENYL-$2-PYRAZOLINE, ADJUSTING THE IMPREGNATED MATERIAL TO A LIQUOR CONTENT OF ABOUT 5 TO 120% BY WEIGHT REFERRED TO THE DRY-WEIGHT OF THE GOODS, AND HEATING IT FOR ABOUT 2 SECONDS TO 30 MINUTES TO A TEMPERATURE OF ABOUT 100 TO 150*C.
    • 1288545荧光增白FARBWERKE HOECHST AG 19 Jan 1970 [30 Jan 1969] 4340/70标题DIP包含至少85%的聚丙烯腈的聚合物的纤维材料通过用含有通式光亮剂的液体浸渍材料进行光学增白,其中A代表 支链或非支链C 2-4亚烷基,R SP 1表示C 1-4烷基,R SP 2表示C 1-4烷基或两个基团 R 2 与氮原子一起形成饱和杂环,X表示无色阴离子,n为1或2,将材料的液体含量调整为参考材料的5-120重量% 并在100 <-150℃下加热,优选用蒸汽加热2秒至30分钟。 如果亮面织物要立即印刷,则优选在50 <-150℃进行中间干燥。 添加增稠剂例如淀粉醚,黄蓍胶,角豆粉和结晶胶,以防止在干燥过程中荧光增白剂的迁移。 当增亮液中加入脂肪酸和氧乙基化氨的非离子缩合产物和/或脂肪酸和低分子量脂肪族多胺的季
      缩合产物时,可实现增强的增亮。 其中A,R 1,R 2,X和n具有上述含义的通式的第二增白剂显示绿蓝色荧光,并且当应用时 与式II化合物的混合物,以补偿后者的淡红色。
    • 8. 发明授权
    • Liquid scintillators
    • 液体扫描仪
    • US3676360A
    • 1972-07-11
    • US3676360D
    • 1971-06-30
    • ADIL E SHAMOO
    • SHAMOO ADIL E
    • G01T1/204G01T1/20C09K1/02
    • G01T1/2042
    • The counting efficiency of liquid scintillators containing toluene as the solvent for a primary solute or activator and for a secondary solute or spectrum shifter is improved, particularly in the presence of water, for example, when the isotope to be detected is an aqueous solution, by adding to the liquid scintillator a hygroscopic substance which is soluble in toluene in an amount sufficient to absorb and/or emulsify the water that is present. Such hygroscopic additive is preferably cellulosic and may be selected from the group consisting of cellulose, carboxymethyl cellulose, cellulose phosphate, diethylaminoethyl cellulose, benzyl diethylaminoethyl cellulose and epichlorohydrin triethanolamine cellulose. The additive for improving the counting efficiency may advantageously include, apart from the cellulose and/or cellulose derivative, a small amount of sodium or calcium carbonate or bicarbonate. The improvement in counting efficiency resulting from the mentioned addition is particularly large when the scintillators liquid includes alcohol as well as toluene.
    • 含有甲苯作为一级溶质或活化剂和二级溶质或光谱移动剂的溶剂的液体闪烁体的计数效率得到改善,特别是在水的存在下,例如当待检测的同位素是水溶液时,由 向液体闪烁体中加入可溶于甲苯的吸湿物质,其量足以吸收和/或乳化存在的水。 这种吸湿添加剂优选为纤维素,并且可以选自纤维素,羧甲基纤维素,磷酸纤维素,二乙基氨基乙基纤维素,苄基二乙基氨基乙基纤维素和表氯醇三乙醇胺纤维素。 除了纤维素和/或纤维素衍生物外,用于提高计数效率的添加剂可以有利地包括少量的碳酸钙或碳酸钙或碳酸钙。 当闪烁体液体包括醇以及甲苯时,由所述添加产生的计数效率的改善特别大。
    • 9. 发明授权
    • Inorganic white pigments containing optical brighteners and process for their manufacture
    • 含有光学增亮剂的无机白色及其制造方法
    • US3669896A
    • 1972-06-13
    • US3669896D
    • 1969-12-02
    • CIBA GEIGY AG
    • PREININGER ERICHGING DIETER
    • C08K13/02C09C1/06C09C1/36C09C3/00D21H17/69C09K1/02
    • D21H17/69C01P2002/52C08K13/02C09C1/06C09C1/3661C09C3/006C09C3/063C09C3/08
    • The invention concerns a process for the manufacture of inorganic white pigments containing optical brighteners, characterized in that, in an aqueous suspension of an inorganic white pigment which contains a dispersion of at least one optical brightener which is sparingly soluble in water, dispersed by means of non-ionic surface-active agents, property-improving auxiliary substances for such pigments are precipitated or adsorbed on these pigments in a manner which is in itself known by admixing the property-improving auxiliary or admixing the components for the formation of such a property-improving auxiliary if several components for its formation are necessary, and the pigments treated in such manner are separated from the aqueous phase, washed and dried. The invention provides a valuable method for homogeneously distributing optical brightening agents in combination with white pigments in plastics.
    • 本发明涉及一种制造含有荧光增白剂的无机白色颜料的方法,其特征在于在无机白色颜料的水性悬浮液中,其含有至少一种微溶于水的荧光增白剂的分散体,其通过以下方式分散: 非离子表面活性剂,用于这些颜料的性能改进助剂为这些颜料的沉淀或吸附,其本身是通过混合改性助剂或混合用于形成这种性能的助剂, 如果需要形成几种成分,则改善助剂,并且以这种方式处理的颜料与水相分离,洗涤并干燥。 本发明提供了将荧光增白剂与塑料中的白色颜料组合均匀分布的有价值的方法。