SECOND PART COMPOSITION FOR HAIR DYEING OR BLEACHING
申请人:Matsunaga Kenichi
公开号:US20100281627A1
公开(公告)日:2010-11-11
Provided is a second part composition for hair dyeing or bleaching, which is mixed with a first part composition containing an alkali agent before use, the composition containing the following components (A) to (D): (A) an organic amine having at least one hydrophobic chain or a salt thereof; (B) an oily component which is a liquid form at 25° C. under normal pressure (1013.25 hPa); (C) an oxidizing agent; and (D) water, in which the composition has a pH of 1 to 6 at 25° C.
US7972389B2
申请人:——
公开号:US7972389B2
公开(公告)日:2011-07-05
METHODS AND COMPOSITIONS FOR DOWNHOLE DIVERSION OF WELL TREATMENT FLUID
申请人:SAUDI ARABIAN OIL COMPANY
公开号:US20210380867A1
公开(公告)日:2021-12-09
In one aspect, embodiments disclosed herein relate to wellbore fluids that include a surfactant, calcium chloride, and an aqueous base fluid. The surfactant may have a structure represented by formula (I):
where R
1
is a C
15
-C
27
hydrocarbon group, R
2
is a C
1
-C
10
hydrocarbon group, and n and m are each, independently, an integer ranging from 1 to 4. The wellbore fluid may contain the calcium chloride in an amount of 5% by weight (wt. %) or more, relative to the total weight of the wellbore fluid.
Synthesis, Characterization and Surface Properties of Amidosulfobetaine Surfactants Bearing Odd-Number Hydrophobic Tail
作者:S. M. Shakil Hussain、Mustapha Alao Animashaun、Muhammad Shahzad Kamal、Nisar Ullah、Ibnelwaleed A. Hussein、Abdullah S. Sultan
DOI:10.1007/s11743-016-1788-9
日期:2016.3
respectively. The surfactants exhibit excellent surfaceproperties, which are comparable with conventional surfactants. The intrinsic viscosity of surfactant (2b) was studied at various temperatures and concentrations of multi‐component brine solution. The plot of natural logarithm of relative viscosity versus surfactant concentration obtained from Higiro et al. model best fit the surfactant behavior. Due