Paris, France
Paris, France

Imerys S.A. is a French multinational company which specialises in the production and processing of industrial minerals. It is headquartered in Paris and is a constituent of the CAC Mid 60 index. Imerys has operations in 50 countries and has more than 16,000 employees. It extracts and processes rocks and minerals on behalf of customers in the manufacturing and construction industries. Wikipedia.

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Patent
Imerys | Date: 2017-02-01

A ceramic composition, optionally in the form of a honeycomb structure, ceramic precursor compositions suitable for sintering to form said ceramic composition, a method for preparing said ceramic composition and ceramic honeycomb structure, a diesel particulate filter comprising said ceramic honeycomb structure, and a vehicle comprising said diesel particulate filter.


Patent
Imerys | Date: 2017-04-12

A dried or at least partially dried ceramic feedstock, a method of preparing a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 5 wt. %, ceramic formulations comprising one or more ceramic precursors, temperature sensitive gelling agent, solvent, and having a viscosity suitable for low pressure injection molding, methods for preparing said ceramic formulations, a method of forming a ceramic article from said ceramic formulations, and a ceramic article obtainable therefrom.


A composition may include a first talc having a morphology index less than or equal to about 0.8 and a second talc having a morphology index greater than or equal to about 0.6. The first talc and the second talc may form a talc composition, and the talc composition may have a content ratio of the first talc to the second talc ranging from about 30:70 by weight to about 80:20 by weight. A polymer composition may include a polymer matrix and a filler composition. The filler composition may include a first talc having a morphology index less than or equal to about 0.8 and a second talc having a morphology index greater than or equal to about 0.8. The filler composition may have a content ratio of the first talc to the second talc ranging from about 30:70 by weight to about 80:20 by weight. The first talc may be a microcrystalline talc. The second talc may be a macrocrystalline talc.


Patent
Imerys | Date: 2017-01-25

The present invention relates to pigment compositions and aqueous coating compositions comprising said pigment compositions which are suitable for coating paper products, particularly inkjet paper products.


The present invention concerns precipitated calcium carbonate particles being at least partially in the form of nanofibers or nanochain like agglomerates, wherein the particles are at least partially coated with at least one coating agent, use of such precipitated calcium carbonate particles and a process for the manufacture of such precipitated calcium carbonate particles.


There is disclosed a polymer-based foam composition comprising a polymer and up to 20 wt.-% particles of one or more inorganic particulate materials, based on the total weight of the composition, wherein the one or more inorganic particulate materials comprise less than 20 wt.-% Al, calculated as Al2O3-content. According to one aspect, the one or more inorganic particulate materials comprise phyllosilicates. Also part of the present invention is the use of such polymer-based foam compositions and their method of production.


Patent
Imerys | Date: 2017-03-15

Ink compositions comprising a carrier and an inorganic particulate additive are described. The ink composition comprises a liquid carrier and an inorganic particulate additive, wherein bleeding of the additive into a fount solution in offset printing is reduced. The inorganic particulate additive has a washout factor, representing the extent of bleeding in offset printing use, of less than about 0.70.


Patent
Imerys | Date: 2017-01-18

An agglomerated mineral composite coating composition may include a coating vehicle, an agglomerated mineral composite including a first inorganic particulate mineral, a second inorganic particulate mineral, and a binder. The binder may facilitate agglomeration of the first inorganic particulate mineral and the second inorganic particulate mineral. A method of making a coating composition including agglomerated mineral composites may include adding a first inorganic particulate material to a second inorganic particulate material to form a mixture, adding a binder to the mixture to form agglomerated mineral composites, and adding the agglomerated mineral composites to a coating vehicle. The first and second inorganic particulate materials may include diatomaceous earth, mica, perlite, aluminosilicate, talc, and an alkali earth metal carbonate. The aluminosilicate may include kaolin. The alkali earth metal carbonate may include calcium carbonate. The binder may include sodium silicate. The coating composition may include not more than 10% by weight titanium dioxide.


The present disclosure relates to a process for preparing surface-modified carbonaceous particles, wherein said carbonaceous particles are coated with a surface layer of amorphous carbon by dispersing carbonaceous material with an amphiphilic compound, spray drying of the dispersion and subsequent calcination of the dried material. The disclosure also pertains to surface-modified carbonaceous particles coated with amorphous carbon, which can for example be obtained by the process of the invention. The present disclosure further relates to the use of the surface-modified carbonaceous particles in a variety of technical applications, such as its use as an active material for negative electrodes of lithium ion batteries. The present disclosure also relates to a carbon brush or a polymer composite material, and generally compositions comprising said surface-modified carbonaceous particles, optionally together with other carbonaceous or non-carbonaceous materials.


Patent
Imerys | Date: 2017-09-27

There are disclosed polymer-based foam compositions comprising a polymer; and up to 20 wt. % talc particles, based on the total weight of the composition. The talc particles are microcrystalline talc. The polymer is selected from a thermoplastic, a thermoplastic elastomer, and a rubber. There are further disclosed uses of the said polymer-based foam compositions, products comprising the said polymer-based foam compositions, and methods of formation of the said polymer-based foam compositions.

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