Abstract: A 1,3-dipolar compound including an epoxide group is provided. The epoxide group is a 3-membered ether ring in which a first member is a carbon atom having an attachment to the dipole of the 1,3-dipolar compound and a second member is a tertiary or quaternary carbon. The use of the 1,3-dipolar compound in the modification of a diene polymer makes it possible to improve the rupture properties of a rubber composition comprising the modified polymer, without the expense of its hysteresis properties, while at the same time improving its implementation.

Abstract: Silicone material obtained by a reaction between:—at least one organopolysiloxane (A) that has a molar mass of less than 70,000 g/mol, preferably less than 50,000 g/mol, and contains siloxyl units I.1 and I.2; and—at least one organic compound (B) carrying at least two carboxylic acid groups and having no unsaturation. Y a ? Z b 1 ? SiO 4 - ( a + b ) 2 ( I ? .1 ) Z c 2 ? SiO 4 - c 2 ( I ? .

Abstract: A rubber composition is based on at least 50 to 100 phr of a copolymer containing ethylene units and 1,3-diene units, the ethylene units in the copolymer representing more than 50 mol % of the monomer units of the copolymer, 0.1 to 9% by mass of crumb rubber, a reinforcing filler and a crosslinking system.

Abstract: A rubber composition is based on at least a diene elastomer, a reinforcing filler, a crosslinking system, an epoxy resin, an amine hardener comprising at least two primary amine functions, located on at least one six-membered aromatic ring, and an imidazole.

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.

Abstract: A process for manufacturing a rubber composition which comprises more than 50 phr of a diene elastomer rich in ethylene units, a reinforcing filler comprising a carbon black and a vulcanization system comprising sulfur, a sulfenamide as primary accelerator and a thiuram polysulfide or a mixture of a thiuram polysulfide and a guanidine as secondary accelerator is provided. The process comprises mixing the highly saturated diene elastomer, the reinforcing filler and the secondary accelerator by kneading at a temperature above 110?C, in the absence of the sulfur and the primary accelerator, and incorporating the sulfur and the primary accelerator into the rubber composition by kneading at a temperature below 110° C. The process makes it possible to reduce the hysteresis of the vulcanized rubber compositions.

Abstract: The invention relates to a process which responds to this problem scenario. The invention therefore relates to a process for preparing a rubber composition based on at least one diene elastomer, a reinforcing filler, a crumb rubber and a crosslinking system, said process comprising at least the following steps: incorporating the reinforcing filler into the diene elastomer, all at once or in several stages, and mixing; when the temperature of the mixture reaches a temperature of greater than 100° C., adding the crumb rubber; continuing the mixing up to a maximum temperature of between 120° C. and 190° C.; cooling the mixture to a temperature of less than 100° C.; incorporating the crosslinking system and mixing up to a maximum temperature of less than 110° C.

Abstract: A rubber composition based on at least one diene elastomer, a reinforcing filler and a 1,3-dipolar compound comprising an epoxide group is provided. The epoxide group is a 3-membered ether ring in which a first member is a carbon atom exhibiting a connection to the dipole of the 1,3-dipolar compound and a second member is a tertiary or quaternary carbon. Such a rubber composition exhibits improved properties at break and an improved processing, as well as good hysteresis properties.

Abstract: A method of providing a modifier on the surface of an active-containing core-shell aminoplast microcapsule, including the covalent attachment of the modifier to the capsule shell surface by means of a coupling compound capable of covalent bonding to both shell and modifier by means of epoxy groups on the coupling compound. The method is especially useful for enhancing the substantiveness to fabrics of fragrance microcapsules added to laundry products.

Abstract: A rubber composition is based on at least a diene elastomer, a reinforcing filler, a crosslinking system, an epoxy resin, an amine hardener comprising at least two primary amine functions, located on at least one six-membered aromatic ring, and an imidazole.

Abstract: Approaches are described for coating various flexible media, such as sheets of paper, synthetic polymer (polyolefin, polyester, etc.) sheets or fabric sheets, with a silicone on high-speed rolls. For example, an efficient method is described for minimizing and/or reducing mist formation when coating flexible supports with a liquid silicone composition precursor of crosslinked coatings. The coating process can be performed using a coating device that includes a roll operating at a high speed.

Abstract: A method for producing a porous silicone material including the following steps: 1) implementing a direct emulsion E of silicone in water including: A) a silicone base A crosslinkable by polyaddition or polycondensation; B) at least one nonionic silicone surfactant B having a cloud point between 10 and 50° C.; C) optionally, at least one catalyst C; and D) water; 2) heating the emulsion E to a temperature greater than or equal to 60° C. to obtain a porous silicone material; and 3) optionally, drying the porous silicone material.

Abstract: A diene polymer including at least one specific epoxide side group, one of the carbon atoms of which simultaneously has an attachment to the polymer chain and is a trisubstituted carbon, and the other carbon atom is an at least trisubstituted carbon is provided. The introduction of such a polymer, in particular elastomer, into a rubber composition makes it possible to improve its rupture properties without this being at the expense of its hysteresis properties, while at the same time improving its implementation.

Abstract: A rubber composition is based on at least one elastomer, a reinforcing filler, a crosslinking system and from 5 to 100 phr of a crumb rubber, the crumb having a mean size D50 of between 100 and 300 ?m, and a particle size distribution such that the ratio of the mean sizes D10/D50 is greater than or equal to 0.5; the composition also comprises 1 to 10 phr of a tackifying resin having a number-average molecular weight (Mn) greater than 800 g/mol and a polydispersity index (PI) greater than or equal to 2.0.

Abstract: A 1,3-dipolar compound including an epoxide group is provided. The epoxide group is a 3-membered ether ring in which a first member is a carbon atom having an attachment to the dipole of the 1,3-dipolar compound and a second member is a tertiary or quaternary carbon. The use of the 1,3-dipolar compound in the modification of a diene polymer makes it possible to improve the rupture properties of a rubber composition comprising the modified polymer, without the expense of its hysteresis properties, while at the same time improving its implementation.

Abstract: A tire intended to equip a vehicle bearing heavy loads is provided. The tire includes a tread having at least one rubber composition based on at least: one elastomer matrix comprising at least one modified copolymer at a content greater than or equal to 51 phr, the modified copolymer having a glass transition temperature Tg above ?65° C. and below or equal to ?30° C. and being composed of a copolymer based on styrene and based on butadiene functionalized in the middle of the chain with an alkoxysilane group linking the two arms of the copolymer via the silicon atom which bears an amine function bonded directly or via a spacer group to the silicon atom, a reinforcing filler, a chemical crosslinking system, an agent for coupling, and a plasticizing system comprising from 2 to 15 phr of at least one plasticizing resin.

Abstract: Silicone material obtained by a reaction between:—at least one organopolysiloxane (A) that has a molar mass of less than 70,000 g/mol, preferably less than 50,000 g/mol, and contains siloxyl units I.1 and I.2; and—at least one organic compound (B) carrying at least two carboxylic acid groups and having no unsaturation. Y a ? Z b 1 ? SiO 4 - ( a + b ) 2 ( I ? .1 ) Z c 2 ? SiO 4 - c 2 ( I ? .

Abstract: A rubber composition based on at least one diene elastomer, a reinforcing filler and a 1,3-dipolar compound comprising an epoxide group is provided. The epoxide group is a 3-membered ether ring in which a first member is a carbon atom exhibiting a connection to the dipole of the 1,3-dipolar compound and a second member is a tertiary or quaternary carbon. Such a rubber composition exhibits improved properties at break and an improved processing, as well as good hysteresis properties.

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrates. The present invention relates in particular to a polyurethane composition with a high biosourced monomer content, comprising isosorbide as a diol chain extender and a pentamethylene diisocyanate trimer; the invention also relates to the polyurethane coating obtained from this composition.

Abstract: The present invention relates to a crosslinkable composition for forming a polyurethane coating on different types of substrate. The present invention relates in particular to a polyurethane composition comprising isosorbide as a diol chain extender, and to the polyurethane coating obtained from this composition.