Patent classifications
C09K23/32
Phytol-based surfactants and methods therefor
Described herein are compositions and methods for the conversion of chlorophyll-derived phytol into useful and economically viable surfactants. The provided compositions utilize the hydrophobic phytol structure and added functional groups to increase hydrophilicity at one end of the molecule.
Phytol-based surfactants and methods therefor
Described herein are compositions and methods for the conversion of chlorophyll-derived phytol into useful and economically viable surfactants. The provided compositions utilize the hydrophobic phytol structure and added functional groups to increase hydrophilicity at one end of the molecule.
Polymer dispersant, colorant dispersion liquid, and ink composition
A polymer dispersant includes a first block; and a second block, the first block has a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion, and the second block has a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion.
Polymer dispersant, colorant dispersion liquid, and ink composition
A polymer dispersant includes a first block; and a second block, the first block has a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion, and the second block has a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion.
Polymer Dispersant, Colorant Dispersion Liquid, And Ink Composition
A polymer dispersant includes a first block; and a second block, the first block has a structural unit derived from a first monomer having an imidazolium salt portion and a hydrophobic portion, and the second block has a structural unit derived from a second monomer having an imidazolium salt portion and a hydrophilic portion.
Process for preparing alkyl pyroglutamic acids
Disclosed are compounds of formulae: ##STR00001##
and salts, hydrates, or solvates thereof, where R.sub.1, R.sub.2, R.sub.3, R.sub.5, and R.sub.6 are defined herein, compositions containing these compounds, methods of preparing these compounds, and methods of using these compounds in a variety of applications, such as a surfactant or additive in personal care products.
NONIONIC, REDOX-CLEAVABLE SURFACTANT FOR MASS SPECTROMETRY-BASED PROTEOMICS AND STRUCTURAL BIOLOGICAL APPLICATIONS
The present invention provides nonionic cleavable surfactants (NCS), specifically n-Decyl-disulfide--D-maltoside (DSSM), suitable for MS-based proteomics and analysis. These surfactants are designed to mimic the properties of a commonly used surfactant in structural biology, n-dodecyl--d-maltoside (DDM), but contain a disulfide bond that allows for facile cleavage and surfactant removal before analysis. DSSM and other NCS are compatible with native mass spectrometry, top-down and bottom-up proteomics, ESI-MS and other analytical techniques, and reduce signal suppression typically observed with other surfactants. DSSM and other NCS provide versatile surfactants that can facilitate protein sample preparation under non-denaturing conditions for a myriad of proteomic and structural biology applications and act as a general replacement for DDM.
NONIONIC, REDOX-CLEAVABLE SURFACTANT FOR MASS SPECTROMETRY-BASED PROTEOMICS AND STRUCTURAL BIOLOGICAL APPLICATIONS
The present invention provides nonionic cleavable surfactants (NCS), specifically n-Decyl-disulfide--D-maltoside (DSSM), suitable for MS-based proteomics and analysis. These surfactants are designed to mimic the properties of a commonly used surfactant in structural biology, n-dodecyl--d-maltoside (DDM), but contain a disulfide bond that allows for facile cleavage and surfactant removal before analysis. DSSM and other NCS are compatible with native mass spectrometry, top-down and bottom-up proteomics, ESI-MS and other analytical techniques, and reduce signal suppression typically observed with other surfactants. DSSM and other NCS provide versatile surfactants that can facilitate protein sample preparation under non-denaturing conditions for a myriad of proteomic and structural biology applications and act as a general replacement for DDM.
PROCESS FOR PREPARING ALKYL PYROGLUTAMIC ACIDS
Disclosed are compounds of formulae:
##STR00001##
and salts, hydrates, or solvates thereof, where R.sub.1, R.sub.2, R.sub.3, R.sub.5, and R.sub.6 are defined herein, compositions containing these compounds, methods of preparing these compounds, and methods of using these compounds in a variety of applications, such as a surfactant or additive in personal care products.
Emulsifiers for Invert Emulsion Drilling Fluids
The present disclosure relates to the creation of emulsifiers for use in an oil-based drilling mud. The disclosed emulsifiers may be created by the reaction of synthetic linear saturated fatty acids and polyamines under the conditions specified. The synthesized product may be used as a replacement for the wetting agent in conventional muds. Further improvements in conventional drilling muds are also disclosed where the synthesized product is used to replace incumbent wetting agents and the primary emulsifiers are replaced by synthetic fatty acids.