Synthesis and evaluation of novel cationic gemini surfactants based on Guava crude fat as petroleum-collecting and dispersing agents
作者:Mohammed Abo-Riya、Ahmed H. Tantawy、Wagdy El-Dougdoug
DOI:10.1016/j.molliq.2016.05.083
日期:2016.9
Cationic geminisurfactantsbased on Guava fat mixed fatty alcohols and isolated fatty alcohols C8, C12, C16, C18 were synthesized. The surfaceproperties and thermodynamic parameters of micellization process, of the new cationic geminisurfactants have been investigated. Furthermore, the petroleum-collecting and dispersing indices of obtained surfactants, in waters of varying salinity have been studied
Cationic gemini-surfactants based on waste cooking oil as new ‘green’ inhibitors for N80-steel corrosion in sulphuric acid: A combined empirical and theoretical approaches
作者:Mai M. Khalaf、Ahmed H. Tantawy、Kamal A. Soliman、Hany M. Abd El-Lateef
DOI:10.1016/j.molstruc.2019.127442
日期:2020.3
Abstract The objective of this report is to investigate the inhibition of cationic gemini-surfactants based on waste cooking, as a green source of inhibitors against acidic corrosion of N80-steel. Two Gemini cationic surfactants have been prepared based on waste frying oil with full characterization by different spectral tools (FTIR, 1H NMR and 13C NMR), and investigated as sustainable inhibitors for
Use of a (1>3)-Beta-D-Glucan as an Emulsion Stabiliser
申请人:Lommerts Bert Jan
公开号:US20110168055A1
公开(公告)日:2011-07-14
The present invention relates to the use of a (1→3)-β-D-glucan as an emulsion stabiliser. The present invention further relates to emulsions comprising a (1→3)-β-D-glucan in an amount of 0.01 to 10 wt. %, based on the total weight of the emulsion. The present invention also relates to bitumen binder compositions comprising a (1→3)-β-D-glucan in an amount of 0.005 to less than 0.1 wt. %, based on the total weight of the bitumen binder composition. The present invention further relates to emulsions comprising a novel biodegradable emulsifying agent, in particular in combination with a (1→3)-β-D-glucan.
Use of a (1>3)-β-D-glucan as an emulsion stabiliser
申请人:Latexfalt, B.V.
公开号:US08197589B2
公开(公告)日:2012-06-12
The present invention relates to the use of a (1→3)-β-D-glucan as an emulsion stabilizer. The present invention further relates to emulsions comprising a (1→3)-β-D-glucan in an amount of 0.01 to 10 wt. %, based on the total weight of the emulsion. The present invention also relates to bitumen binder compositions comprising a (1→3)-β-D-glucan in an amount of 0.005 to less than 0.1 wt. %, based on the total weight of the bitumen binder composition. The present invention further relates to emulsions comprising a novel biodegradable emulsifying agent, in particular in combination with a (1→3)-β-D-glucan.
Polymer, preparation process thereof, hairtreating compositions and cosmetic compositions
申请人:MITSUI TOATSU CHEMICALS, INC.
公开号:EP0767191A2
公开(公告)日:1997-04-09
Disclosed are polymers (polyaspartic acid derivatives) containing, in the molecule, 1 mol % or more of at least one repeating unit selected from the group consisting of repeating units represented by the following formulas (1) and (2).
These polymers are useful in the preparation of hair-treating compositions and cosmetic compositions having excellent hairdressing properties and good biocompatibility.