Provided is a novel oily material that spreads smoothly upon application and is free from stickiness, and also gives ungreasy and moisturized feeling after application, but does not give friction feeling peculiar to silicone. The invention was completed upon finding that a specific acyl acidic amino acid monosilicone monosterol ester can solve the foregoing problems.
POLYSACCHARIDES AND EMULSIFIED PRODUCTS CONTAINING THE SAME
申请人:Kuramoto Masayuki
公开号:US20130231402A1
公开(公告)日:2013-09-05
To provide a novel substance having an excellent water-dispersibility capable of forming an emulsion which spreads rapidly onto the skin, does not undergo aggregation or segregation due to a salt, and is excellent in a low temperature stability. The aforementioned problems were found to be solved by means of a certain polysaccharide and the invention was established.
A body surface protecting composition, comprising at least one type of multi-chain multiple hydrophilic group-type compound having two or more hydrophobic groups and two or more hydrophilic groups in the molecule, which has an excellent effect of accelerating the recovery of the barrier function of skin and hair and preventing degradation of that function.
According to the present invention, a process is provided for producing an acyl group-containing composition that includes a step of reacting a long chain N-acyl acidic amino acid anhydride with one or more compounds which have, per molecule, m functional groups of one kind or more selected from the group consisting of hydroxyl, amino and thiol groups in an aqueous solvent and/or a mixed solvent of water and an organic solvent (reaction step). The process makes it possible to produce an acyl group-containing composition that is free from coloration under moderate conditions.
根据本发明,提供了一种生产含酰基组合物的工艺,该工艺包括以下步骤:将长链 N-酰基酸性氨基酸酐与一种或多种化合物在水性溶剂和/或水与有机溶剂的混合溶剂中进行反应(反应步骤),这些化合物每个分子具有 m 种官能团,这些官能团选自羟基、氨基和硫醇基组成的组中的一种或多种。该工艺可以生产出在中等条件下不着色的含酰基组合物。