C08L33/062

METHOD OF PREPARING GRAFT POLYMER

Provided is a method of preparing a graft polymer, which includes: adding a diene-based rubber polymer, a first monomer mixture including a (meth)acrylate-based monomer and an aromatic vinyl-based monomer, and a reactive ultraviolet (UV) stabilizer to a reactor and carrying out polymerization to prepare a composite rubber polymer; and graft-polymerizing a second monomer mixture including a (meth)acrylate-based monomer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to the composite rubber polymer to prepare a graft polymer, wherein the reactive UV stabilizer is added in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the sum of the diene-based rubber polymer, the first monomer mixture, and the second monomer mixture.

POLYMER NETWORKS WITH UNIQUE PROPERTIES

A composition comprising a crosslinked polymer network and one or more oligomers that are substituted with one or more polar groups. The compositions are useful in the manufacture of furniture, flooring, optical fibers, information storage media, dental devices and implants, printing inks, 3D printing, adhesives, biomaterials, and optical lenses (e.g. contact lenses).

Photo-responsive shape changing polymer composition for colored optical lens

Photo-responsive shape changing polymer compositions including photoinitiators that absorb light in the range about 400 nm to about 700 nm, a cross-linked polymer matrix and a polymerizable composition. Photopolymerization of the polymerizable composition sorbed in the cross-linked polymer matrix results in the shape change which manifests in the change in the refractive properties of the composition. The light dose required to effect the shape change; lock-in dose and the photobleaching dose are determined by the choice of the photoinitiator, electron donor and the hydrogen donor. These compositions are useful in the fabrication of coloured lenses, especially intraocular lenses.

BINDER COMPOSITION FOR MANUFACTURING LITHIUM-SULFUR BATTERY CATHODE, AND LITHIUM-SULFUR BATTERY CATHODE MANUFACTURED THEREFROM
20230253564 · 2023-08-10 ·

A binder composition for manufacturing a positive electrode of a lithium-sulfur battery comprising a binder, a thickener, and gum arabic is provided, a positive electrode manufactured using the binder composition is provided, and a lithium-sulfur battery comprising the positive electrode is provided. The binder composition may improve initial discharge performance and cycle performance of a battery by comprising gum arabic with a thickener, when applied to a lithium-sulfur battery.

Damping material as intermediate layer for a brake pad and process for making the damping material

A damping material 10 for a damping layer or interlayer of a brake lining has at least one rubber content and one resin content. A plurality of macroscopic, heterogeneously delimited areas are formed in the damping material 10, areas comprising rubber areas 1 with a high rubber content of at least 3% to maximally 50% by weight, and resin areas 2 with a high resin content of at least 5% by weight, wherein the rubber areas 1 are free of resin or have a resin content ≤5% by weight, and the resin areas 2 are free of rubber.

Damping Material as Intermediate Layer for a Brake Pad and Process for Making the Damping Material

A damping material 10 for a damping layer or interlayer of a brake lining has at least one rubber content and one resin content. A plurality of macroscopic, heterogeneously delimited areas are formed in the damping material 10, said areas comprising rubber areas 1 with a high rubber content of at least 3% to maximally 50% by weight, and resin areas 2 with a high resin content of at least 5% by weight, wherein the rubber areas 1 are free of resin or have a resin content ≤5% by weight, and the resin areas 2 are free of rubber.

Thermally Conductive Material Technical Field
20220017740 · 2022-01-20 ·

A thermally conductive material according to the present technology includes: 100 parts by mass of a crosslinking reaction product of an acrylic polymer (A) including at least two crosslinkable functional groups containing a carbon-carbon unsaturated bond and an acrylic polymer (B) including at least one of the crosslinkable functional groups; from 100 to 200 parts by mass of an acrylic polymer (C) with a viscosity of 650 mPa.Math.s or less; from 150 to 350 parts by mass of a trimellitate ester plasticizer; from 3500 to 7500 parts by mass of a thermally conductive filler with an average particle size ranging from 0.1 μm to 100 μm; and from 50 to 300 parts by mass of a thickener with an average particle size of 50 nm or less.

Thermally Conductive Material Technical Field
20220017740 · 2022-01-20 ·

A thermally conductive material according to the present technology includes: 100 parts by mass of a crosslinking reaction product of an acrylic polymer (A) including at least two crosslinkable functional groups containing a carbon-carbon unsaturated bond and an acrylic polymer (B) including at least one of the crosslinkable functional groups; from 100 to 200 parts by mass of an acrylic polymer (C) with a viscosity of 650 mPa.Math.s or less; from 150 to 350 parts by mass of a trimellitate ester plasticizer; from 3500 to 7500 parts by mass of a thermally conductive filler with an average particle size ranging from 0.1 μm to 100 μm; and from 50 to 300 parts by mass of a thickener with an average particle size of 50 nm or less.

CROSSLINKABLE AND CROSSLINKED COMPOSITIONS

A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these crosslinkable or crosslinked compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate polymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or significantly increasing in molecular weight. The crosslinked compositions can function as either a pressure-sensitive adhesive composition or a heat bondable adhesive composition and are particularly well suited for use in electronic devices.

CROSSLINKABLE AND CROSSLINKED COMPOSITIONS

A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these crosslinkable or crosslinked compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate polymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or significantly increasing in molecular weight. The crosslinked compositions can function as either a pressure-sensitive adhesive composition or a heat bondable adhesive composition and are particularly well suited for use in electronic devices.