CERAPHYL(R) RMT——赋予洗去型个人护理产品卓越保湿性

作为国际特品公司在皮肤脂质类似体领域推出的最新原料,在具有良好的安全性能的同时,Ceraphyl RMT能以与皮肤角质层中神经酰胺和甾醇同样的作用方式和脂肪酸形成有序的脂质结构.当被应用于洗去型个人护理产品配方时,它能提供良好的长效保湿功能.同时,皮肤外观和纹理也能得到明显的改善.     

CERAPHYL（r）RMT—赋予洗去型个人护理产品卓越保湿性

作为国际特品公司在皮肤脂质类似体领域推出的最新原料，在具有良好的安全性能的同时，Ceraphyl(r)RM能以与皮肤角质层中神经酰胺和甾醇同样的作用方式和脂肪酸形成有序的脂质结构。当被应用于洗去型个人护理产品配方时，它能提供良好的长效保湿功能。同时，皮肤外观和纹理也能得到明显的改善。     

CERAPHYL(R) RMT——赋予洗去型个人护理产品卓越保湿性

作为国际特品公司在皮肤脂质类似体领域推出的最新原料，在具有良好的安全性能的同时，Ceraphyl^R RMT能以与皮肤角质层中神经酰胺和甾醇同样的作用方式和脂肪酸形成有序的脂质结构。当被应用于洗去型个人护理产品配方时，它能提供良好的长效保湿功能。同时，皮肤外观和纹理也能得到明显的改善。     

保湿四部曲——从皮肤生理学到解决方案

综述了与保湿相关的皮肤生理学理论,包括皮肤各个层面的含水量及皮肤各层对保湿起关键作用的结构和组成。同时提出了针对不同皮肤保湿途径的解决方案,包括通过外源性补充角质层屏障的成分、结构或功能的快速保湿及针对角质屏障形成过程的靶点保湿机理。     

Design, synthesis and application of easy wash-off reactive dyes

New dyes that not only give good fixation levels but also relatively low substantivity in the hydrolysed form were the targets of this research. Our approach involved lowering the substantivity of the hydrolysed dye by reducing the planarity that is required for dyes to have high substantivity on cotton. In this regard, bifunctional bis-dichlorotriazine (bis-DCT) and tetrafunctional bis-monochlorotriazine/bis-sulphatoethyl sulphone [bis-(MCT/SES)] reactive dyes were made, using selected diaminobiphenyls. Bis-DCT bifunctional reactive dyes were applied to cotton by a pad–batch method, while bis-(MCT/SES) tetrafunctional reactive dyes were applied to cotton by a pad–dry–cure. Following dye application, it was found that the resultant hydrolysed dyes easily washed off the fibre surface and that the dyed cotton fabrics had colour fastness to rubbing and laundering properties that were comparable with the commercial prototypes used in this study. However, it is also apparent that the combination of relatively low water solubility and large molecular size has an adverse effect on fibre penetration.     

我国氯丁橡胶技术进步的探讨

引进氯丁橡胶（CR）生产技术和设备对有丁二烯货源的氯碱企业有利,但必须面对可能存在的一些问题,建议有关企业搞合资引进。     

Preparation of superior humidity-control materials from kenaf

Charcoals were prepared by carbonizing kenaf at temperature between 400 °C and 1,000 °C and their specific surface areas, pore volumes, iodine adsorption capacities and amounts of water vapor absorbed were measured. By comparing the properties of the core charcoal and the bark charcoal, it was found that specific surface areas, pore volumes and iodine adsorption capacities of the former were larger than those of the latter. Most of the obtained values were roughly similar to those of common wood charcoals, while humidity-control capacities (W _hc) of charcoals were much larger than those of common wood charcoals. The reason for this is believed to be the presence of potassium in kenaf charcoals. The extraction of potassium by water washing gave W _hc values similar to those of common wood charcoals, and the larger the W _hc values of original charcoals were, the larger amounts of potassium removed were. Moreover, it was indicated that carbonization at higher temperature helped expose potassium on the pore wall surfaces that had been covered and thus enhanced W _hc values.     

Autoxidation products from cholesterol

Thin-layer chromatography and gas-liquid chromatography were used to separate and identify products from the autoxidation of cholesterol. Both cholesterol-a-epoxide and 1,4-cholestadien-3-one were found. In addition, several other compounds, identified also by previous workers, were shown to be present. Autoxidation in bulk was quite slow at 82C, requiring several weeks for development of detectable quantities of decomposition products. The reaction could be accelerated by irradiation with ultraviolet light or by heating the sterol above its melting point.     

Combustion products from polydiallylamine

Crosslinked polydiallylamine (Sirorez Au¹) was prepared by the redox-initiated (K₂S₂O₈/TiCl₃) polymerization of freshly distilled diallylamine [containing 2% 1,6-bis(N,N-diallylamino)hexane] as a 30% solution in 80% phosphoric acid at 0°C. The resulting crosslinked resin is thoroughly washed with water and then sodium hydroxide solution (10%) before a final distilled water washing and air drying. Polydiallylamine resin containing ? 50% by weight gold was prepared by soaking the above resin in a three fold molar excess of gold cyanide solution (2 g/L at pH 8.5) overnight and then filtering the resin, washing with distilled water, and air drying. The samples were dried for 24 h over P₂O₅ before combustion.