Recent in Rheology/Viscosity Modifier (page 5 of 6)

Evonik Goldschmidt and Aqualon Collaborate on Personal Care Products

Aqualon, a division of Hercules Incorporated, and Evonik Goldschmidt GmbH have signed an agreement to bring utilitarian polymers to the forefront of the personal care industry.

Choosing Thickening Agents for Emulsions, Part I: Water Phase Thickeners

As readers of this column certainly must by now know, emulsion stabilization is a favorite topic of mine. A key component of every emulsion is the thickener or, more properly, a thickener system that is employed.

Stimuli-responsive Polymer Systems: A Review of Thermo-associative Thickening

This article reviews recent trends in thermally initiated stimuli-responsive materials and provides some insight into the physicochemical mechanisms that underpin this behavior.

Comparatively Speaking: Newtonian vs. Non-newtonian Liquids

Industry expert Tony O'Lenick asks: What is the difference between newtonian and non-newtonian liquids? The answer to this question was provided by Peter Styne.

Arch Introduces Rheology Modifier

Arch Personal Care Products introduces a viscosity builder specifically developed for cosmetic and personal care applications...

Cationic-compatible Liquid Rheology Modifier

Noveon Inc., a subsidiary of specialty chemical company The Lubrizol Corporation, has announced a new cationic-compatible liquid rheology modifier.

Correlating the Structure and Rheology of Lamellar Liquid Crystalline Phases in Emulsions

This paper describes the correlation between the structure of liquid crystalline phases in emulsions and their rheological characteristics. An oleosome/lipophilic liquid crystalline-forming system and hydrosome/hydrophilic liquid crystalline-forming system were investigated. At the same high shear rate viscosity, the oleosome-system showed less thixotropy and rapid recovery when compared with the hydrosome-system.

Sunscreen Formulas With Multilayer Lamella Structure

The multilayer lamellar structure in sunscreens containing phosphate emulsifiers plays key roles in the emulsion rheology and in enhancing deposition of sunscreen oil on skin surface, thereby improving the SPF water wash resistance.

Fluid Gels Based On Natural Polymers For Cosmetic Applications

Varying the concentration of two polymers – xanthan gum and konjac mannan – mixed in solution and subjected to shear while cooling yields fluid gels whose viscosity can vary from a pourable solution to a spreadable gel.

Colonial Launches HMW Betaine

Colonial Chemical highlights a new high molecular weight (HMW) betaine that is naturally derived from linoleic acid.

Equilibration Reaction of Silicone Fluids

Silicone compounds resemble organic compounds in their ability to make derivatives, but they are fundamentally different because they are equilibrium products. The nature of the equilibrium and the composition of the equilibrium mixture are the key factors. This is important because cyclic compounds are undesirable in personal care products.

Polymers for Thickening and Aesthetics of Surfactant Systems

In the presented study, researchers suggest that acrylates/aminoacrylates/C10-30 alkyl PEG-20 itaconate copolymer serves to stabilize hydroxypropyl starch phosphate polymer in surfactant systems, and also enables hydroxypropyl starch phosphate polymer to further build viscosity.

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