The invention relates to a fatty acid diamide-based rheology additive composition, which is pre-activated and pre-concentrated in fatty acid diamide, comprising: a) from 5% to 30% by weight of at least one fatty acid diamide based on 12 hydroxystearic acid and on a linear, in particular C5, C6 or C7, aliphatic diamine, b) from 70% to 95% by weight of at least one monofunctional (meth)acrylic reactive diluent comprising a cycloaliphatic group or several cycloaliphatic groups, the % being expressed relative to a)+b). It also relates to a process for preparing the composition and to the use thereof as a rheology additive in reactive binder compositions such as coating, moulding, composite material, anchor bolt or sealant compositions or photocrosslinkable compositions for stereolithography or for 3D printing of objects by inkjet.

Polymeric systems useful for maintaining particle dispersions for extended periods of time.

Polymeric systems useful for maintaining particle dispersions for extended periods of time.

A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.

A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.

[Problems] An object of the present invention is to provide a crystalline radical polymerizable composition which is excellent in flowability and is easy to handle. [Solution Means] The crystalline radical polymerizable composition for sealing electrical and electronic component according to the present invention is characterized by comprising at least a crystalline radical polymerizable compound, an inorganic filler, a silane coupling agent, and a radical polymerization initiator. In addition, in a preferred embodiment of the crystalline radical polymerizable composition for sealing electrical and electronic component according to the present invention, the crystalline radical polymerizable compound is characterized by comprising one or more selected from unsaturated polyester, epoxy (meth) acrylate, urethane (meth) acrylate, polyester (meth) acrylate, -polyether (meth) acrylate, radical polymerizable monomer and radical polymerizable polymer.

[Problems] An object of the present invention is to provide a crystalline radical polymerizable composition which is excellent in flowability and is easy to handle. [Solution Means] The crystalline radical polymerizable composition for sealing electrical and electronic component according to the present invention is characterized by comprising at least a crystalline radical polymerizable compound, an inorganic filler, a silane coupling agent, and a radical polymerization initiator. In addition, in a preferred embodiment of the crystalline radical polymerizable composition for sealing electrical and electronic component according to the present invention, the crystalline radical polymerizable compound is characterized by comprising one or more selected from unsaturated polyester, epoxy (meth) acrylate, urethane (meth) acrylate, polyester (meth) acrylate, -polyether (meth) acrylate, radical polymerizable monomer and radical polymerizable polymer.

The present invention provides a resin composition for stereolithography that, with its low consistency, enables easy fabrication while ensuring good shape accuracy and desirable color masking properties in the cured product. The present invention relates to a resin composition for stereolithography comprising: an 80 to 99 mass % polymerizable monomer (a); a 0.1 to 10 mass % photopolymerization initiator (b); a 0.1 to 5.0 mass % inorganic particle (c) having an average particle diameter of 5 to 200 nm; and a 0.01 to 10 mass % metal oxide particle (d) having an average particle diameter of 0.1 to 10 μm, the inorganic particle (c) being different from the metal oxide particle (d).

The present invention provides a resin composition for stereolithography that, with its low consistency, enables easy fabrication while ensuring good shape accuracy and desirable color masking properties in the cured product. The present invention relates to a resin composition for stereolithography comprising: an 80 to 99 mass % polymerizable monomer (a); a 0.1 to 10 mass % photopolymerization initiator (b); a 0.1 to 5.0 mass % inorganic particle (c) having an average particle diameter of 5 to 200 nm; and a 0.01 to 10 mass % metal oxide particle (d) having an average particle diameter of 0.1 to 10 μm, the inorganic particle (c) being different from the metal oxide particle (d).

The present invention concerns a process for decolorizing a polyolefin composition, the process comprising the steps of a) providing a polyolefin composition comprising at least one polyolefin and at least one organic chromophore, b) mixing the polyolefin composition in a melt state at a temperature of 170 to 290° C. with an inorganic oxidizing agent, wherein the inorganic oxidizing agent is selected from the group of inorganic peroxides and hypochlorites, and c) obtaining a decolorized polyolefin composition.