LiHMDS: Facile, highly efficient and metal-free transesterification under solvent-free condition
作者:Lavanya L. Mittapelli、Kiran R. Gore
DOI:10.1016/j.catcom.2020.106194
日期:2021.1
transesterification reaction in the presence of LiHMDS undersolvent-free conditions. The transesterification reaction was carried out with three different benzoate esters and a wide range of primary and secondary alcohols (from C3-C18) in good to excellent yields (45 examples). By considering the commercial role of esters, this method will be promising for the facile synthesis of esters in industry-relevant applications
The invention relates to anhydrous compositions that are useful as UV-light screens for mammalian skin. Such compositions comprise octocrylene, octyldodecyl neopentanoate, and a C1-C4 alcohol vehicle. The invention also relates to methods of inhibiting or preventing UV light-induced skin damage by administering an effective amount of such a composition to the skin of a mammal in need of such inhibition or protection.
[Object] To provide a reversibly thermochromic composition free from accidental discoloration by heat conducting from the opposite side writing surface or by self-heating due to quick writing; and also to provide a solid writing material and a writing ink composition comprising that composition.
[Means to solve the problem] A reversibly thermochromic composition comprising a combination of: (a) a reversibly thermochromic component capable of being discolored or decolored by heat and (b) a component for controlling heat conducting to the reversibly thermochromic component; and also a solid writing material and a writing ink composition comprising that composition.
Compositions and methods for treating diseases of the nail
申请人:Dow Pharmaceutical Sciences, Inc.
公开号:EP2853274A1
公开(公告)日:2015-04-01
Methods and compositions for treating disorders of the nail and nail bed. Such compositions do not form a film upon application to the surface of the nail and contain a vehicle in which all components of the compositions are dissolved, suspended, dispersed, or emulsified, a non-volatile solvent, a wetting agent, and a pharmaceutically active ingredient that is soluble in the non-volatile solvent and/or a mixture of the vehicle and the non-volatile solvent, and which composition is effective in treating a disorder of the nail or nail bed.
Tunable directional color transition compositions and methods of making and using the same
申请人:Segan Industries, Inc.
公开号:US10168307B1
公开(公告)日:2019-01-01
Color change compositions that transition from a first to second color state upon application of an applied stimulus are provided. Also provided are substrates having the compositions on a surface thereof, as well as methods of making and using the compositions.