C08L2666/54

COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER
20210122906 · 2021-04-29 ·

The invention relates to a composition comprising (A) a propylene-based polymer, (B) an elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (A) the propylene-based polymer has a melt flow index of 60 to 150 dg/min measured according to ASTM D1238 (2.16 kg/230° C.) and wherein (B) the elastomer has a density of 0.840 to 0.865 g/cm.sup.3, wherein (B) the elastomer has a melt flow index of 3 to 13 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein the amount of (B) the elastomer is 2 to 30 wt % based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt % based on the total composition.

Polymer gel with nanocomposite crosslinker

A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxid includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.

Polymer gel with nanocomposite crosslinker

A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxide includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.

OPTICAL LAMINATE, POLARIZING PLATE, AND DISPLAY DEVICE

The present disclosure provides an optical laminate including: a polymer substrate containing a polymer resin and rubber particles having a cross-sectional diameter of 10 to 500 nm dispersed in the polymer resin; and an antiglare layer containing a binder resin and organic fine particles, nano-inorganic particles and chain-shaped silica dispersed in the binder resin, wherein rubber particles having a cross-sectional diameter of 10 to 500 nm exist within 50% of the thickness of the antiglare layer from the interface between the polymer substrate and the antiglare layer, a polarizing plate including the optical laminate, and a liquid crystal display and a display device including the polarizing plate.

OPTICAL LAMINATE, POLARIZING PLATE, AND DISPLAY DEVICE

The present disclosure provides an optical laminate including: a polymer substrate containing a polymer resin and rubber particles having a cross-sectional diameter of 10 to 500 nm dispersed in the polymer resin; and an antiglare layer containing a binder resin and organic fine particles, nano-inorganic particles and chain-shaped silica dispersed in the binder resin, wherein rubber particles having a cross-sectional diameter of 10 to 500 nm exist within 50% of the thickness of the antiglare layer from the interface between the polymer substrate and the antiglare layer, a polarizing plate including the optical laminate, and a liquid crystal display and a display device including the polarizing plate.

POLYMER GEL WITH NANOCOMPOSITE CROSSLINKER

A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxid includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.

Optoelectronic component and method for producing an optoelectronic component
10840416 · 2020-11-17 · ·

The invention relates to an optoelectronic component (100) comprising a semiconductor chip (1) configured for emitting radiation, a conversion element (2) comprising quantum dots (5) and configured for wavelength conversion of radiation, wherein the conversion element (2) comprises a layer structure (7) having a plurality of inorganic barrier layers (31, 32, 33, 34), wherein the inorganic barrier layers (31, 32, 33, 34) are spatially separated from one another at least regionally by a hybrid polymer (4), wherein the hybrid polymer (4) comprises organic and inorganic regions that are covalently bonded to one another, wherein the quantum dots (5) are embedded in the hybrid polymer (4) and/or at least in one of the barrier layers (31, 32, 33, 34).

METHOD FOR MANUFACTURING ROOM-TEMPERATURE-CURABLE ORGANOPOLYSILOXANE COMPOSITION, ROOM-TEMPERATURE-CURABLE ORGANOPOLYSILOXANE COMPOSITION, AND ARTICLE

Through the present invention, by undergoing a step in which a straight-chain diorganopolysiloxane having silanol groups at both terminal ends of the molecular chain thereof, a hydrolyzable silane and/or a partial hydrolysis condensate thereof having a hydrolyzable group capable of detaching a lactic acid ester, and an amino-group-containing hydrolyzable organosilane and/or a partial hydrolysis condensate thereof are pre-mixed/reacted in advance and silanol groups at both terminal ends of the molecular chain of a main agent (base polymer) are blocked by specific hydrolyzable silyl groups, it is possible to manufacture a lactic-acid-ester-type room-temperature-curable organopolysiloxane composition excellent in all characteristics including curability, adhesive properties, workability, and the like that were not attainable by the conventional lactic-acid-ester-type room-temperature curable (RTV) silicone rubber composition.

POLYMER GEL WITH NANOCOMPOSITE CROSSLINKER

A nanocomposite including a metal oxide and two-dimensional nanosheets. The metal oxide includes at least one of zirconia and titania, and the two-dimensional nanosheets include at least one of reduced graphene oxide and boron nitride. A weight ratio of the metal oxide to the two-dimensional nanosheets is in a range of 2:1 to 19:1, or in a range or 2:1 to 9:1. Making the nanocomposite includes forming a first aqueous dispersion including zirconia nanoparticles and graphene oxide powder, combining a reducing agent with the first aqueous dispersion, irradiating the first aqueous dispersion with microwave radiation, thereby yielding a second aqueous dispersion including zirconia and graphene, and separating the nanocomposite from the second aqueous dispersion, wherein the nanocomposite comprises zirconia and graphene.

WATER-SOLUBLE COPOLYMER AND USE THEREOF AS DISPERSANT FOR SUSPENSION OF PARTICLES

The invention relates to the field of preparing aqueous dispersions of organic, organometallic or inorganic particles. In particular, the invention relates to the preparation of aqueous suspensions comprising organic, organometallic or inorganic particles and at least one particular copolymer obtained by polymerization of at least one acid and at least one compound or at least one ester derived from a particular acid, in the presence of water, at least one initiator compound and at least one activator compound, followed by total or partial neutralization by means of at least one compound chosen from alkali metal hydroxides, alkaline earth metal hydroxides, alkaline earth metal dihydroxides and mixtures thereof. The invention relates to such a particular copolymer having a low polydispersity index and weight-average molecular weight, the preparation process thereof and the use thereof, especially for the preparation of an aqueous paint composition.