Rhodia

Aubervilliers, France
Aubervilliers, France
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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.


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.


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.


The present invention relates to a composition containing an anionic surfactant based on an alkali salt of sulfosuccinic acid dialkylester to promote the obtention of an inverse microemulsion which is used as foam control composition in a phosphoric acid production medium. The present invention also discloses a process to produce said composition by stirring the components of such a composition to obtain a microemulsion. The invention also aims at a method for controlling foam during the production of phosphoric acid by wet process, avoiding its formation or decreasing its amount.


The present invention relates to a plasticized cellulose ester derivative composition comprising a cellulose ester derivative and at least a compound of formula (I)_(1)-C_(4))alkyl group or a -O(C_(1)-C_(4))alkyl group ; Y represents a bond or a group -C=C- in configuration (E), and when Y is a bond, at least one of R1, R2 and R3 is different from a hydrogen atom. The present invention further relates to the use of a compound of formula (I) as a plasticizer of a cellulose ester derivative and a process for the manufacture of a plasticized article.


The present invention concerns a plasticized cellulose ester derivative composition comprising a cellulose ester derivative and at least a compound of formula (I)R1 represents a hydrogen atom or a hydroxyl group,R2 and R3 independently represent a hydrogen atom, a (C_(1)-C_(4))alkyl group or a-O(C_(1)-C_(4))alkyl group,R4 represents a hydrogen atom, an hydroxyl group, a (C_(1)-C_(4))alkyl group, a benzyl group, a -O(C_(1)-C_(4))alkyl group or a -Obenzyl group, andrepresents a single bond or a double bond. The present invention further relates to the use of a compound of formula (I) as a plasticizer of a cellulose ester derivative and a process for the manufacture of a plasticized article.


Patent
Rhodia | Date: 2017-01-25

An adjuvant composition for modifying the spray properties of an aqueous pesticide composition contains (a) at least one fatty deposition control agent, and (b)(ii) a liquid medium, one or more hydrotropes, and, optionally one or more surfactants, or (b)(ii) one or more surfactants, and adjuvant compositions for modifying the spray properties of an aqueous pesticide composition contains (c) at least one deposition control agent, and (d)(ii) a liquid medium, one or more hydrotropes, and, optionally one or more surfactants, or (d)(ii) one or more surfactants, and use thereof in agricultural applications.


The invention relates to a novel process for the preparation of silicate comprising:- reacting rice husk ash with a silicate precursor P1 to obtain a silicate S2 having a SiO_(2)/M_(x)O molar ratio MR_(2),in which the precursor P1 iseither a silicate S1 having a SiO_(2)/M_(x)O molar ratio MR_(1) such that MR_(2) > MR_(1),or a mixture of sand with metal hydroxide.

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