Abstract: A cooking item including a vitreous coating with improved impact-resistance properties, and a method for manufacturing such an item. The method for manufacturing includes optionally treating a concave internal side of a substrate having the end shape of the cooking item, the concave internal side being arranged on the side of the food to be introduced in said item, and a convex exterior side to be arranged on the heat source side, so as to obtain a treated internal side adapted to cause a hard base layer to adhere to the substrate, The method further includes preparing an adhering hard base layer on said internal side of the substrate, be it treated beforehand or not, and preparing a non-stick coating on the hard base layer.

Abstract: Provided is a vitreous coating comprising at least one layer embodied in the form of a continuous film of sol-gel material comprising a matrix formed from at least one metal polyalkoxylate and wherein anisotropically-shaped particles are dispersed, said layer comprising at least one area wherein the particles are particles predominantly inclined by an angle (?) of between 20° and 90° relative to the median plane of the film. The subject matter of the present invention also comprises a method of manufacturing such a coating, and a culinary article one of the surfaces of which is coated with such a coating.

Abstract: Provided is a primer composition for a non-stick coating which includes a polyamide-amic acid having an acid value of 50 to 200 mg KOH/g, a Lewis base, water and at least 5 wt % of a polar aprotic solvent relative to the total weight of said composition. According to the invention, the weight ratio of PAI/polar aprotic solvent in said composition is at least 1.5. Also provided is a method for preparing such a composition, and a method for manufacturing an item comprising a metal substrate to which such a composition is applied.

Abstract: The present invention relates to a heating article (1) which includes a substrate (2) having two opposite surfaces (21, 22), at least one of which is opaque, and a heat-stable coating (3) arranged on said opaque surface (21). According to the invention, the heat-stable coating (3) includes an at least two-colour decoration (31) having continuous tones and being provided in the form of a continuous or discontinuous layer, and the heating article has been cured at a temperature of more than 300° C. The present invention also relates to a method for manufacturing such an article (1).

Abstract: The present invention relates to a cooking article a substrate having a contact surface at least partially made of metal and coated with a non-stick coating comprising at least one layer including at least one fluorocarbon resin alone or mixed with a thermostable coupling binder that is heat-resistant up to at least 200° C., the fluorocarbon resin and, if necessary, the thermostable coupling binder forming a sintered network. According to the invention, the contact surface comprises an interface layer consisting of a polymer layer formed by plasma polymerization from a precursor selected from among unsaturated carboxylic acids, the salts or esters thereof, saturated carboxylic acid vinyl esters, unsaturated dicarboxylic acids, the salts, esters, hemiesters or anhydride esters thereof, and unsaturated epoxides. The present invention also relates to a method for manufacturing such an article.

Abstract: This invention relates to a cooking article (1) including a metal dish (2) having a base area (20), a concave internal face (21) intended to be arranged on the side of the food to be placed in said article (1) and a convex external face (22) intended to be arranged toward a heat source, and an external coating (3) covering said external face (22), characterized in that said external coating (3) includes between 30% and 50% by weight, with respect to the entire weight of said coating (3), of at least one polyimide having a glass transition temperature Tg equal to or above 250° C. This invention also relates to a process for producing such an article (1).

Abstract: Provided is a heating article comprising a substrate having two opposite surfaces, a heat-stable coating comprising at least one base layer comprising at least one heat-stable binder, said base layer being arranged on one of the surfaces of the substrate, and one microstructured surface layer comprising a heat-stable binder of the same chemical nature as that of the base layer. The microstructured layer partly or fully covers the base layer and is sintered integrally to it. The microstructured surface layer has a relief with patterns comprised of local variations in its surface level, said relief having a regularity in average pitch Ar with a variation SAr which is not more than 10% higher or lower than the value of said average pitch Ar. A method of manufacturing such an article is also provided.

Abstract: Provided is an article, particularly culinary, comprising a cast iron support having two opposite sides. The article comprises a vitreous coating in the form of at least a continuous layer of a sol-gel material comprising a matrix formed from at least a metal polyalkoxylate and at least a reactive or unreactive silicone oil, the layer of sol-gel material being deposited directly on one at least of the sides of said support, and the side provided with a vitreous coating has a surface roughness Ra ranging between 3 and 15 ?m with a peak count per centimeter RPc ranging between 50 and 200. A method for manufacturing such an article is also provided.

Abstract: Provided is a ceramic coating intended to be applied on a metal support and having the form of at least a continuous film having a thickness between 2 and 100 ?m, this coating comprising a matrix including at least a metal polyalkoxide and wherein are dispersed particles whereof the diameter ranges between 0.01 and 50 ?m, said particles being from a material having a thermal conductivity equal to or higher than 10 W·m?1·K?1 and a bulk density of at the most 3.9 g/cm3. Also provided is an article, for example culinary, comprising such a coating and its method of manufacture.

Abstract: This invention relates to a heating article (1) comprising a substrate (2) of which one of the surfaces (21) is equipped with a design (4), in the form of a coating layer with at least one pattern (41, 42), which comprises a thermochromic pigment composition with at least one SC thermochromic pigment that is lipid-sensitive under heat. According to the invention, the thermochromic pigment composition includes at least one thermostable pigment and composite pigment grains (43), which each include a core (430) including the semiconducting thermochromic pigment, and a solid, transparent and continuous envelope (431), formed by a mineral or organomineral material. The thermochromic pigment composition shows a reversible change in color in a thermal color-change area with an amplitude of no more than 40° C. within the range of variation of said temperature T1 of use.

Abstract: Provided is a metal-oxide nanofiller including at least two graft chains, at least one of the chains being hydrophilic and the other being a hydrophobic chain compatible with fluorinated polymers. The hydrophobic chain is an oligomer, the weight-average molar mass Mw of which is between 300 and 20,000 g/mol?1. Also provided is a non-stick coating comprising such a filler, as well as to a culinary article provided with such a coating.

Abstract: Provided is a heating utensil comprising a support intended to be heated, said support comprising a surface covered by a non-stick coating, said non-stick coating comprising at least one sintered layer based on fluorocarbon resin forming a continuous network. Said sintered layer additionally comprises a mixture of magnetizable particles and of non-magnetizable particles, some of said magnetizable particles being oriented so as to form a three-dimensional pattern. Also provided is a method for producing such a heating utensil.

Abstract: The present invention relates to a cooking item comprising a vitreous coating with improved impact-resistance properties. The present invention also relates to a method for manufacturing such an item.

Abstract: A cooking item comprising a vitreous coating with improved impact-resistance properties. The present invention also relates to a method for manufacturing such an item.

Abstract: This invention relates to an article (1) including a substrate (2) including two opposite faces (21, 22), and a sol-gel coating (3) covering at least one of the faces (21, 22) of said substrate (2), in which said sol-gel coating (3) is in the form of a continuous film of a material including a matrix formed by at least one metal polyalkoxylate and at least 5% by weight with respect to the total weight of the coating (3) of at least one metal oxide dispersed in said matrix. According to the invention, the sol-gel coating (3) is coated with a functional design (4) including at least one optically non-transparent chemical substance. This invention also relates to a process for producing an article.

Abstract: The invention relates to a cooking utensil comprising a hollow bowl with a base and a side wall rising from the base, and including at least one fragile area. The bowl has a concave inner surface for receiving food, as well as a convex outer surface. The utensil is coated successively, from the bowl, with a hard base and a nonstick coating, which covers the hard base and includes at least one layer containing at least one fluorocarbon resin. The hard base has a layer that is at least broken at the fragile area. The invention also relates to a method for producing such a utensil.

Abstract: This invention relates to a heating article (1) comprising a substrate (2) of which one of the surfaces (21) is equipped with a design (4), in the form of a coating layer with at least one pattern (41, 42), which comprises a thermochromic pigment composition with at least one SC thermochromic pigment that is lipid-sensitive under heat. According to the invention, the thermochromic pigment composition includes at least one thermostable pigment and composite pigment grains (43), which each include a core (430) including the semiconducting thermochromic pigment, and a solid, transparent and continuous envelope (431), formed by a mineral or organomineral material. The thermochromic pigment composition shows a reversible change in colour in a thermal colour-change area with an amplitude of no more than 40° C. within the range of variation of said temperature T1 of use.

Abstract: This invention relates to an article (1) including a substrate (2) including two opposite faces (21, 22), and a sol-gel coating (3) covering at least one of the faces (21, 22) of said substrate (2), in which said sol-gel coating (3) is in the form of a continuous film of a material including a matrix formed by at least one metal polyalkoxylate and at least 5% by weight with respect to the total weight of the coating (3) of at least one metal oxide dispersed in said matrix. According to the invention, the sol-gel coating (3) is coated with a functional design (4) including at least one optically non-transparent chemical substance. This invention also relates to a process for producing an article.

Abstract: The invention concerns a culinary item comprising a support element and a first coating of a sol-gel baked composition, said first coating overlying at least a portion of a first face of the support element, wherein said culinary item further comprises a second coating of a silicone-based baked composition overlying at least a portion of the first coating. The invention also involves a method of manufacturing such a culinary item.

Abstract: An article comprising a metal support with two opposing faces at least one of which is covered by a discontinuous ceramic coating. Said coating has a softening point above the melting point of the support and has at least one absorbing element for the laser radiation at a wavelength of the order of 1 ?m, being at least 1% of the weight of said coating. The invention further relates to a method for producing said article.