Recent in Rheology/Viscosity Modifier (page 5 of 6)
Dec 14, 2007
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.
Oct 9, 2006 | Ken Klein, Cosmetech Laboratories
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.
Oct 2, 2006 | Robert Y. Lochhead, The University of Southern Mississippi
This article reviews recent trends in thermally initiated stimuli-responsive materials and provides some insight into the physicochemical mechanisms that underpin this behavior.
Aug 29, 2006
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.
Aug 14, 2006
Arch Personal Care Products introduces a viscosity builder specifically developed for cosmetic and personal care applications...
Jun 1, 2006
Noveon Inc., a subsidiary of specialty chemical company The Lubrizol Corporation, has announced a new cationic-compatible liquid rheology modifier.
May 1, 2006 | T. Tadros, Consultant; S. Leonard, M.-C. Taelman, C. Verboom and V. Wortel, Uniqema
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.
Apr 26, 2006 | Timothy Gao, PhD, Jung-Mei Tien and Yoon-Hee Choi, Croda Inc., North American Technical Center
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.
Apr 21, 2006 | Peter A. Williams and Martina Hickey, Centre for Water Soluble Polymers; and David Mitchell, Chesham Chemicals Ltd.
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.
Jan 5, 2006
Colonial Chemical highlights a new high molecular weight (HMW) betaine that is naturally derived from linoleic acid.
Jan 4, 2006 | Anthony J. O'Lenick, Jr., Siltech LLC; Kirk N. Wiegel, Department of Chemistry, University of Wisconsin; and Thomas G. O’Lenick, Department of Chemistry, Georgia Southern University
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.
Jan 2, 2006 | Anja Gestmann, PhD, and Judith Bucher, National Starch Personal Care
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.