This invention relates to the use of polyisocyanate compositions, in which polyisocyanates contain dimer patterns and imino-trimer patterns for the production of coatings, and particularly paints or varnishes for automobile bodywork parts and with excellent shock resistance properties, particularly resistance to thrown gravel.
The present invention relates to a polyamide matrix-based composition comprising electrically conductive fillers. Shaping this composition allows plastic articles to be obtained, such as, for example, bodywork components in the automotive field, which have a good capacity for being painted by an electrostatic paint deposition process.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
C08K 3/00 - Use of inorganic substances as compounding ingredients
H01B 1/20 - Conductive material dispersed in non-conductive organic material
The present invention relates to dispersions of mineral particles in a hydrophobic organic medium (organosols) which are stabilized with amphiphilic polymers comprising: - a polymer chain of hydrophobic nature, which has an affinity with respect to the dispersing organic medium; and - a non-polymer end group, linked to said hydrophobic polymer chain, and which bears at least one group RA capable of developing interactions with the surface of the particles. The invention also relates to processes for preparing these suspensions, and to various possible uses of these organosols.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
C07C 323/52 - Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
4.
PROCESS FOR TREATING A WOOD PRETREATED WITH A FATTY SUBSTANCE, COMPRISING THE APPLICATION OF AN AQUEOUS COMPOSITION COMPRISING A CROSSLINKING SYSTEM TO SAID WOOD
The present invention relates to a process for treating a wood pretreated with a fatty substance, comprising the application of an aqueous composition, in particular a stain, a varnish or a paint, comprising a binder based on a crosslinking system, to said wood.
The invention concerns a method for preparing a copolymer grafted with an unsaturated fatty chain comprising at least one terminal -OH group in aqueous phase. The invention also concerns a graft copolymer obtainable by said method and its uses as a binder in coating compositions and in particular in decorative or industrial paint compositions, in adhesive compositions or inorganic binder compositions.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.) (France)
Inventor
Labarre, Dominique
Mutin, Pierre
Lassiaz, Stéphanie
Galarneau, Anne
Brunel, Daniel
Abstract
The invention relates to a silica surface modification method which can be used, in particular, for the preparation of a silica grafted with hydrophobic chains R, in which: (A) a silica is treated in an aqueous medium with at least divalent metal cations that can bind to the surface thereof, typically type Al3+ aluminium cations; and subsequently (B) molecules of at least one phosphonic acid preferably having formula R-PO(-OH)2, wherein R is a hydrophobic chain, are added to the aqueous medium obtained in step A. The invention also relates to the hydrophobised silicas obtained using said method and to the uses thereof, for example as a filler in silicon matrices.
METHOD FOR PREPARING A GRAFTED COPOLYMER BY POLYUNSATURATED FATTY ACIDS, COPOLYMER GRAFTED BY POLYUNSATURATED FATTY ACIDS OBTAINABLE BY SAID METHOD AND USES THEREOF
The invention concerns a method for preparing a grafted copolymer by polyunsaturated fatty acids in aqueous phase. The invention also concerns a grafted copolymer by polyunsaturated fatty acids obtainable by said method and its uses as binder in coating compositions and in particular in decorative or industrial painting compositions, in adhesive compositions or in mineral binder compositions.
The invention relates to a high-bond strength silicon having a particle mean size equal to or greater than 100 νm, a porous volume (Vd1), formed by pores whose diameter ranges from 3.6 to 1000 nm, equal to or greater than 0.3 cm3/g, a mean pore diameter for the pores, whose diameter ranges from 3.6 to 1000 nm, greater than 11 nm and a bonding factor (IC) less than 0.25. A method for producing the inventive silicon, in particular consisting in carrying out a silicon wet granulation, in heat treating and possibly sieving it, the use of the silicon in the form of a liquid carrier, catalyst carrier, additive or for liquid or gaseous filtering are also disclosed.
This invention relates to water-soluble polysaccharide-based products that require less time and effort to incorporate into aqueous formulations, compared to existing polysaccharide products. This invention can be applied more particularly to cationic guar products to be used in cosmetic compositions. The product is in the form of granules and comprises a binding and/or dispersing agent and/or wetting agent.
The invention concerns a controlled architecture copolymer comprising at least one block A obtained by polymerizing a mixture of ethylenically unsaturated monomers (A0) not including vinyl phosphonate monomers and at least one block B obtained by polymerizing a mixture of ethylenically unsaturated monomers (B0) including at least 50 mole % of at least one monomer B1 bearing at least one vinyl phosphonate function. The invention also concerns a method for synthesizing a controlled architecture copolymer comprising at least one block A obtained by polymerizing a mixture of ethylenically unsaturated monomers (A0) not including monomers with vinyl phosphonate monomers and at least one block B obtained by polymerizing a mixture of ethylenically unsaturated monomers (B0) including at least 50 mole % of at least one monomer B1 bearing at least one vinyl phosphonate function. The invention further concerns the use of the copolymer as anti-scaling agent, as dispersant, as emulsifier or surface modifier.
C08F 293/00 - Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
C08F 230/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing phosphorus
11.
COMPOSITION COMPRISING A THERMOPLASTIC POLYMER AND A HYDROPHILIZING AGENT
The invention concerns a method for preparing thermoplastics to obtain a hydrophilic behaviour of the surface of objects made from said thermoplastics. The invention also concerns the additives used to obtain said surface hydrophily, said additives being mixed and jointly melted with the thermoplastics (mass-additivation process). The melted mixtures of thermoplastics and additives are shaped by any conventional means (extrusion, injection, film stretching) to obtain the desired objects. The invention further concerns the uses of said thermoplastic objects with hydrophilized surfaces.
patents