Recent in Rheology/Viscosity Modifier (page 6 of 6)
Dec 23, 2005 | Anthony Bresin, Ghislain Sanhaji and Romain Reynaud, ARD/Soliance
A new polysaccharide, produced by fermentation of a Rhizobium sp. strain, is introduced as a typical example of how technology can create new properties and new applications from a “basic” natural ingredient.
Dec 23, 2005 | Brian Vondruska, Laurie Marshall, Pamela McCalister and Kittie Ramey, Noveon, Inc.
A new formulating technique allows for the preparation of clear gels containing both anionic rheology control polymers and cationic conditioning agents, ingredients which were traditionally thought to be incompatible with one another.
Dec 23, 2005 | D. J. Miller, R. Morschhäuser, M. Löffler, R. Milbradt and W. Stelter, Clariant GmbH
Hydrophobically modified, water-soluble polyelectrolytes based on acrylamidopropane sulphonic acid (AMP-S) are new polymers whose use as rheology modifiers in cosmetic formulations and as emulsifiers in surfactant-free cream gels is described here.
Aug 3, 2005 | T. Tadros, Wokingham; S. Leonard and M.-C. Taelman, Uniqema Personal Care
An emulsifier/biopolymer system using a mixture of nonionic surfactants and two biopolymers was developed. The surfactants provide effective steric stabilization against coalescence, whereas the biopolymers provide a high residual viscosity and yield value, thus providing stability against creaming. The mechanism of stabilization is discussed in terms of the synergy between the two biopolymers.
Jul 25, 2005 | R.Y. Lochhead, The University of Southern Mississippi
This article surveys patents and technical literature, principally from the past 10 years, to report advances in polymers used for dyeing hair, color retention,and hair lightening. Associative thickeners (anionic, cationic, amphoteric, nonionic, HASE, HEUR), nonassociative thickeners, and silicones are discussed.
May 6, 2003 | Ken Klein
Cosmetic chemists have at their disposal a seemingly endless supply of emulsifiers from which to choose. By far, the most popular category of emulsifiers is “soap"–the reaction product between a fatty acid typically stearic acid) and an alkali earth metal (typically sodium hydroxide, occasionally potassium hydroxide).
May 6, 2003 | K Bergstrom, A Busk and I Johansson, Akzo Nobel Surface Chemistry
Hydrophobic modified cellulose ethers can be used to thicken formulations containing high concentrations of anionic surfactants by adding nonionic surfactants to the system. Implications are shown for liquid soaps and hair shampoos.
May 6, 2003 | C Jones
This article describes the mechanisms of acrylate and polyurethane copolymers used as rheology modifiers. It gives examples of their use, and suggests new uses in emulsification and in suspending particles in clear formulations.
May 6, 2003 | Pascale Rossi, Uniqema Health & Personal Care
Cosmetic emulsions can be stabilized via bulk rheology and interfacial rheology by using a unique synergistic blend of two polysaccharides in a technology derived from the food industry.
May 6, 2003 | Patrick Obukowho and Barbara Woldin, Croda Inc.
Formulating tips and representative formulas are presented to help the formulating chemist select the appropriate emollient esters for use as pigment wetting agents in various types of makeup systems, such as foundations and lipsticks.
May 6, 2003 | Christina Juneau, Atrium Biotechnologies; and Arthur Georgalas and Renata Kapino, Tri-K Industries
A high-grade chitosan made from shrimp shells has viscosity-building properties that support its use in cosmetic emulsions and gels.