Use of N,N′-di-(tert-butoxycarbonyl)thiourea 1 in the presence of mercuric chloride provides a very efficient method for the bis-Boc protected guanidine formation of the amino compounds which are highly deactivated either sterically or electronically.
Composition de mise en forme des cheveux comprenant au moins une imine hors hydroxyde
申请人:L'OREAL
公开号:EP1532960A1
公开(公告)日:2005-05-25
L'invention a pour objet une composition cosmétique de mise en forme permanente des fibres kératiniques prête à l'emploi contenant, en tant qu'agent actif de mise en forme permanente, une imine n'appartenant pas à la famille des hydroxydes. Elle vise également un kit contenant des compartiments à mettre en contact pour former la composition prête à l'emploi, ainsi qu'un procédé mettant en oeuvre cette composition.
Composition de défrisage des cheveux comprenant au moins une imine hors hydroxyde
申请人:L'OREAL
公开号:EP1532963A1
公开(公告)日:2005-05-25
L'invention a pour objet une composition cosmétique de défrisage des fibres kératiniques prête à l'emploi, le milieu cosmétiquement acceptable étant exempt d'alcane polyhydroxylé, contenant, en tant qu'agent actif de défrisage, une imine n'appartenant pas à la famille des hydroxydes. Elle vise également un kit contenant des compartiments à mettre en contact pour former la composition prête à l'emploi, ainsi qu'un procédé mettant en oeuvre cette composition.
Encapsulated particles comprising one or more particle cores of silicon-containing material, wherein the one or more particle cores are encapsulated in a waxy lipid shell comprising:
a) two lipidic components comprising from 55% to 95% of the total encapsulated particle weight;
b) a surfactant comprising from 0.1% to 5% by weight of the total encapsulated particle weight;
c) a co-surfactant comprising from 0.01% to 1% by weight of the total encapsulated particle weight;
d) a regulator of metastable state from 0.1% to 5% by weight of the total encapsulated particle.
Also related compositions and methods.
由一个或多个含硅材料颗粒核组成的封装颗粒,其中一个或多个颗粒核封装在蜡脂外壳中,蜡脂外壳包括
a) 两种脂质成分,占封装颗粒总重量的 55% 至 95%;
b) 一种表面活性剂,占封装颗粒总重量的 0.1% 至 5%;
c) 助表面活性剂,占封装颗粒总重量的 0.01%至 1%;
d) 一种稳定状态调节剂,占封装颗粒总重量的 0.1%至 5%。
还有相关的组合物和方法。
Non-toxic corrosion-protection pigments based on manganese
申请人:——
公开号:US20040011252A1
公开(公告)日:2004-01-22
Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.