Rhodia

Aubervilliers, France
Aubervilliers, France

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The invention relates to a novel method for preparing a precipitated silica, consisting in: reacting a silicate with an acidifying agent, such as to obtain a suspension of precipitated silica; filtering the suspension of precipitated silica, such as to obtain a filter cake; subjecting the filter cake to a disintegration operation; and, after the disintegration operation, performing a drying step, characterised in that at least one polycarboxylic acid is added to the filter cake either during or after the disintegration step. The invention also relates to novel precipitated silicas and to the uses thereof.


The present invention relates to a copolymer useful especially as a suds boosting polymer in hand dishwashing detergent compositions. The copolymer of the invention provides improved foaming properties, and in particular may boost the suds, when added onto such hand dishwashing detergent compositions.


A resin blend composition of a polyamide resin and a polyester resin is described, which includes a polyamide resin, a polyester resin and an epoxy resin. The resin blend composition can have improved compatibility between the polyamide resin and the thermoplastic polyester resin, and therefore mechanical properties (strength, bending strength, elasticity, abrasion resistance, impact strength), chemical properties (solvent resistance), thermal resistance, dimensional stability, and paintability.


Patent
Rhodia | Date: 2017-03-22

The present invention relates to the use of an aminosulphonate compound corresponding to the following formula (I): R1R2N-CHR3-CHR4-CHR5-SO3- (I) where: R1 is a preferably C2 to C24 alkyl or alkylamido radical; R2 is an optionally hydroxylated alkyl radical; R3, R4 and R5 are, independently of one another, H or OH; it being understood that at least one of the R3, R4 and/or R5 groups is OH, for stabilizing a foam, in particular a foam used to extract hydrocarbons in an underground formation.


The present invention relates to a method for enhancing fragrance or perfume longevity of a composition by adding to the composition (a) a quaternary ammonium compound; (b) a cationic polysaccharide; (c) a nonionic polysaccharide; and (d) a fragrance material or perfume. In particular, the quaternary ammonium compound is a biodegradable quaternary ammonium compound. The composition has improved perfume longevity.


Patent
Rhodia and French National Center for Scientific Research | Date: 2017-02-08

The invention relates to a material comprising at least one compound having formula Bi1-xMxCu1-y-MyOS1-zMz, the methods for producing said material and the use thereof as a semiconductor, such as for photovoltaic or photochemical use and, in particular, for supplying a photocurrent. The invention further relates to photovoltaic devices using said compounds.


Disclosed are novel tri-substituted aromatic-alkoxylated polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.


Patent
Cnrs, Ivea, Eif Astute and Rhodia | Date: 2017-03-01

The invention relates to a system (1) for measuring the composition of a liquid by LIBS, wherein the liquid circulates in a measuring cell closed by a window (2). The cell comprises means (3) for protecting the window (3) from spray of the liquid. The cell according to the invention allows the in-line analysis of any type of liquid (viscous or not) and is suitable for measuring different compounds contained in the liquid.


The instant invention relates to a composition useful as a precursor for imparting flame-retardant properties to textile articles, comprising a condensate of :(a) a tetrakis (hydroxyorgano) phosphonium sulfate ;(b) urea or thiourea ;(c) optionally an aliphatic hydroxyl-reactive compound such an aminewherein said composition has a free formaldehyde content of less than 0,1%.


Patent
Rhodia | Date: 2017-03-01

A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent and a hydration inhibitor component.

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