Abrégé

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.

Classes IPC  ?

• C09D 175/04 - Polyuréthanes
• C08L 75/04 - Polyuréthanes

Abrégé

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.

Classes IPC  ?

• C08L 77/00 - Compositions contenant des polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
• C08L 77/02 - Polyamides dérivés des acides oméga-aminocarboxyliques ou de leurs lactames
• C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
• C08K 3/00 - Emploi de substances inorganiques en tant qu'adjuvants
• H01B 1/20 - Matériau conducteur dispersé dans un matériau organique non conducteur

Abrégé

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.

Classes IPC  ?

• B01J 13/00 - Chimie des colloïdes, p. ex. production de substances colloïdales ou de leurs solutions, non prévue ailleursFabrication de microcapsules ou de microbilles
• C07C 323/52 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des groupes carboxyle liés au même squelette carboné ayant les atomes de soufre des groupes thio liés à des atomes de carbone acycliques du squelette carboné le squelette carboné étant acyclique et saturé

Abrégé

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.

Classes IPC  ?

• B27K 3/15 - Imprégnation incluant une polymérisation
• B27K 3/34 - Agents d'imprégnation organiques
• B27K 5/02 - Coloration ou teinture du boisBlanchiment du bois
• B27K 3/50 - Mélanges de différents agents d'imprégnation organiques

Abrégé

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.

Classes IPC  ?

• C08F 220/68 - Esters
• C08F 242/00 - Copolymères d'huiles siccatives avec d'autres monomères
• C09D 133/02 - Homopolymères ou copolymères d'acidesLeurs sels métalliques ou d'ammonium

Abrégé

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.

Classes IPC  ?

• C09C 1/30 - Acide silicique
• C08K 3/36 - Silice

Abrégé

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.

Classes IPC  ?

• C08F 220/64 - AcidesLeurs sels métalliques ou leurs sels d'ammonium
• C08F 242/00 - Copolymères d'huiles siccatives avec d'autres monomères
• C08F 2/24 - Polymérisation en émulsion utilisant des agents émulsifiants
• C09D 133/02 - Homopolymères ou copolymères d'acidesLeurs sels métalliques ou d'ammonium

Abrégé

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.

Classes IPC  ?

• B01J 20/283 - Absorbants ou adsorbants poreux à base de silice

Abrégé

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.

Classes IPC  ?

• C08L 5/00 - Compositions contenant des polysaccharides ou leurs dérivés non prévus dans les groupes ou
• C08J 3/12 - Pulvérisation ou granulation
• A61Q 5/00 - Préparations pour les soins des cheveux
• A61K 8/04 - DispersionsÉmulsions
• A61K 8/73 - Polysaccharides

Abrégé

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.

Classes IPC  ?

• C08F 293/00 - Composés macromoléculaires obtenus par polymérisation sur une macromolécule contenant des groupes capables d'amorcer la formation de nouvelles chaînes polymères rattachées exclusivement à une ou aux deux extrémités de la macromolécule de départ
• C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore

Abrégé

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.

Classes IPC  ?

• C08K 5/42 - Acides sulfoniquesLeurs dérivés
• C08K 5/098 - Sels métalliques d'acides carboxyliques