C08F2/22

Fiber molding
11499021 · 2022-11-15 · ·

A process for producing a thermoformable and/or -embossable fiber/polymer composite using a fibrous lignocellulosic substrate S and a polymer P, which contains i) homogeneously mixing the substrate S and the polymer P, then ii) converting the substrate S/polymer P mixture to a fiber web, and then iii) compacting the resultant fiber web at a temperature not less than the glass transition temperature of the polymer P [Tg.sup.P] to give a thermoformable and/or -embossable fiber/polymer composite, wherein a) the substrate S comprises acetylated lignocellulosic fibers, and b) the polymer P is thermoplastic and has a Tg.sup.P≥20° C. The invention relates to a fiber/polymer molding obtainable by the process and a component in motor vehicle construction, in built structures and in furniture which contains the fiber/polymer molding.

Aqueous dispersion of multistage polymer

An aqueous dispersion of a hydrophobically-modified alkali-soluble multistage polymer useful as a thickener affording high thickening efficiency and an aqueous coating composition comprising such aqueous dispersion showing good stability after heat aging without compromising stability upon addition of colorants.

Aqueous dispersion of multistage polymer

An aqueous dispersion of a hydrophobically-modified alkali-soluble multistage polymer useful as a thickener affording high thickening efficiency and an aqueous coating composition comprising such aqueous dispersion showing good stability after heat aging without compromising stability upon addition of colorants.

BURST-RESISTANT, DISPERSIBLE NANO-ENCAPSULATED PHASE-CHANGE MATERIAL AND METHODS FOR PREPARING THE SAME

A burst-resistant, dispersible nano-encapsulated phase-change material includes at least one phase change core material and a shell. The shell includes the reaction product of a plurality of non-phase change materials comprising at least one monomer, an initiator, a crosslinker and at least one surfactant. The shell surrounds at least one phase change core material and is formed by low-energy emulsification followed by polymerization of a mixture of the phase change core material and the plurality of non-phase change materials in water. The mass ratio between at least one phase change core material and the plurality of non-phase change materials is 5-15:10. The nano-encapsulated phase-change material after said low-energy emulsification and polymerization has a particle size ranging between 50 and 500 nm and a heat of fusion of 60 J/g or greater.

BURST-RESISTANT, DISPERSIBLE NANO-ENCAPSULATED PHASE-CHANGE MATERIAL AND METHODS FOR PREPARING THE SAME

A burst-resistant, dispersible nano-encapsulated phase-change material includes at least one phase change core material and a shell. The shell includes the reaction product of a plurality of non-phase change materials comprising at least one monomer, an initiator, a crosslinker and at least one surfactant. The shell surrounds at least one phase change core material and is formed by low-energy emulsification followed by polymerization of a mixture of the phase change core material and the plurality of non-phase change materials in water. The mass ratio between at least one phase change core material and the plurality of non-phase change materials is 5-15:10. The nano-encapsulated phase-change material after said low-energy emulsification and polymerization has a particle size ranging between 50 and 500 nm and a heat of fusion of 60 J/g or greater.

Water-based acrylic pressure-sensitive adhesive for clothing, and preparation method thereof

A water-based acrylic pressure-sensitive adhesive for clothing and a preparation method thereof are provided. Since a specific internal crosslinking agent is used in a predetermined range during polymerization of an acrylic emulsion resin, a glass transition temperature and an internal crosslinking degree may be controlled while maintaining physical properties of the resin equal to those of the existing adhesives, and thus a residual ratio of the pressure-sensitive adhesive may be greatly reduced at the time of removing the pressure-sensitive adhesive from a substrate such as a fabric for clothing, etc.

Substituted catechol polymeric dispersants

Disclosed are novel substituted catechol polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.

Substituted catechol polymeric dispersants

Disclosed are novel substituted catechol polymeric dispersants and related method of preparing. Also disclosed are methods of dispersing at least one pigment comprising the following steps: contacting an aqueous solution containing at least one pigment with the polymeric dispersant copolymers as described herein.

Method for preparing super absorbent polymer

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.

Method for preparing super absorbent polymer

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.