C08L71/10

COMPOSITION FOR BONDED MAGNETS AND METHOD OF MANUFACTURING THE SAME
20220157500 · 2022-05-19 · ·

The present invention relates to a composition for bonded magnets having good hot water resistance and a method of manufacturing the composition. The method of manufacturing a composition for bonded magnets includes: obtaining a first kneaded mixture by kneading a rare earth-iron-nitrogen-based magnetic powder and an acid-modified polypropylene resin; and obtaining a second kneaded mixture by kneading the first kneaded mixture with a polypropylene resin and an amorphous resin having a glass transition temperature of 120° C. or higher and 250° C. or lower, wherein, with respect to 100 parts by weight of the rare earth-iron-nitrogen-based magnetic powder, the amount of the acid-modified polypropylene resin is 3.5 parts by weight or greater and less than 10.4 parts by weight, and the total amount of the polypropylene resin and the amorphous resin is 0.35 part by weight or greater and less than 3.88 parts by weight.

INSULATED ELECTRICAL WIRE AND RESIN COMPOSITION

An insulated wire including a conductor (A) and an insulating layer (B) around the conductor (A). The insulating layer (B) contains an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II) and has a melt viscosity at 60 sec.sup.−1 and 390° C. of 0.40 to 0.75 kPa.Math.s. The aromatic polyetherketone resin (I) has a melt viscosity at 60 sec.sup.−1 and 390° C. of 0.30 kPa.Math.s or lower. The insulating layer (B) has a thickness of 30 to 300 μm.

INSULATED ELECTRICAL WIRE AND RESIN COMPOSITION

An insulated wire including a conductor (A) and an insulating layer (B) around the conductor (A). The insulating layer (B) contains an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II) and has a melt viscosity at 60 sec.sup.−1 and 390° C. of 0.40 to 0.75 kPa.Math.s. The aromatic polyetherketone resin (I) has a melt viscosity at 60 sec.sup.−1 and 390° C. of 0.30 kPa.Math.s or lower. The insulating layer (B) has a thickness of 30 to 300 μm.

COMPOSITE MATERIALS
20230250277 · 2023-08-10 ·

The invention relates to a composite material comprising polyaryletherketone, reinforcement fibre, and contrast agent. The reinforcement fibre is present in an amount of 52 to 58 volume % based on the total volume of the composite material.

COMPOSITE MATERIALS
20230250277 · 2023-08-10 ·

The invention relates to a composite material comprising polyaryletherketone, reinforcement fibre, and contrast agent. The reinforcement fibre is present in an amount of 52 to 58 volume % based on the total volume of the composite material.

RESIN COMPOSITION, SELF-FUSING INSULATED ELECTRIC WIRE AND WIRE BUNDLE

A resin composition includes a phenoxy resin as a principal component. The phenoxy resin has a weight-average molecular weight of 40,000 or more. The phenoxy resin has, in the same or different molecules, a first structural unit derived from bisphenol S phenoxy and a second structural unit derived from a bisphenol epoxy other than the bisphenol S phenoxy. A content ratio of the first structural unit in the phenoxy resin is 20 mol% to 80 mol% relative to a total content of the first structural unit and the second structural unit constituting the phenoxy resin.

COMPOSITION FOR THREE-DIMENSIONAL SHAPING AND THREE-DIMENSIONAL SHAPED OBJECT

A composition for three-dimensional printing which contains an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II). The composition satisfies a ratio r2/r1 of 1.60 or lower, wherein r1 represents an average dispersed particle size of the fluorine-containing copolymer (II) and r2 represents an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g with 5-minute pre-heating in conformity with ASTM D1238. Also disclosed is a three-dimensionally printed article obtained by three-dimensional printing of the composition for three-dimensional printing.

COMPOSITION FOR THREE-DIMENSIONAL SHAPING AND THREE-DIMENSIONAL SHAPED OBJECT

A composition for three-dimensional printing which contains an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II). The composition satisfies a ratio r2/r1 of 1.60 or lower, wherein r1 represents an average dispersed particle size of the fluorine-containing copolymer (II) and r2 represents an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g with 5-minute pre-heating in conformity with ASTM D1238. Also disclosed is a three-dimensionally printed article obtained by three-dimensional printing of the composition for three-dimensional printing.

Sheets including polyphenylene and an aryl salicylate and methods of making the same

A sheet includes: a composition comprising about (60) to about (85) weight percent of polyphenylene, about (0) to about (10) weight percent of polystyrene, about (10) to about (20) weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, about (3) to about (10) weight percent of an aryl salicylate, and optionally, a flame retardant additive.

Sheets including polyphenylene and an aryl salicylate and methods of making the same

A sheet includes: a composition comprising about (60) to about (85) weight percent of polyphenylene, about (0) to about (10) weight percent of polystyrene, about (10) to about (20) weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, about (3) to about (10) weight percent of an aryl salicylate, and optionally, a flame retardant additive.