C08K5/378

POWDER COATING MATERIAL COMPOSITION AND LAMINATE
20230104482 · 2023-04-06 · ·

To provide a powder coating material composition capable of forming a fluororesin layer excellent in adhesion to a base material and having foaming or cracking suppressed even when the firing temperature is as high as at least 380° C.

A powder coating material composition comprising a resin powder with an average particle size of from 10 to 800 μm containing polymer A and heat stabilizer B, wherein the proportion of the heat stabilizer B to 100 parts by mass of the polymer A is from 0.01 to 30 parts by mass. Polymer A: A tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer having at least one type of functional group selected from the group consisting of a carbonyl group-containing group, etc., or a tetrafluoroethylene/hexafluoropropylene copolymer, having the functional group, and having a melting point of from 260 to 320° C. Heat stabilizer B: A heat stabilizer selected from the group consisting of an aromatic polyether compound, an aromatic amine compound, an aromatic sulfur compound and a polysilane compound.

POWDER COATING MATERIAL COMPOSITION AND LAMINATE
20230104482 · 2023-04-06 · ·

To provide a powder coating material composition capable of forming a fluororesin layer excellent in adhesion to a base material and having foaming or cracking suppressed even when the firing temperature is as high as at least 380° C.

A powder coating material composition comprising a resin powder with an average particle size of from 10 to 800 μm containing polymer A and heat stabilizer B, wherein the proportion of the heat stabilizer B to 100 parts by mass of the polymer A is from 0.01 to 30 parts by mass. Polymer A: A tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer having at least one type of functional group selected from the group consisting of a carbonyl group-containing group, etc., or a tetrafluoroethylene/hexafluoropropylene copolymer, having the functional group, and having a melting point of from 260 to 320° C. Heat stabilizer B: A heat stabilizer selected from the group consisting of an aromatic polyether compound, an aromatic amine compound, an aromatic sulfur compound and a polysilane compound.

METHOD OF MANUFACTURING COMPOSITE MEMBER AND THE COMPOSITE MEMBER
20230150244 · 2023-05-18 · ·

According to an aspect of the present disclosure, A method of manufacturing a composite member including an aluminum member and a resin member that are bonded to each other, the method including: blasting on a surface of the aluminum member to form asperities on the surface of the aluminum member; performing hydrothermal treatment on the surface of the aluminum member having the asperities to modify a surface of the asperities into aluminum hydroxide and form a surface nano structure on the surface of the asperities; applying a binder containing a triazine thiol derivative to the surface of the asperities of the aluminum member modified into aluminum hydroxide and having the surface nano structure to form a coating to be bonded to the aluminum member; and bonding the coating and the resin member.

PNEUMATIC TIRE
20230151192 · 2023-05-18 · ·

A pneumatic tire includes: a rubber member A containing a rubber component containing 70 mass % to 100 mass % of a hydrogenated copolymer, sulfur, and a triazine-thiol compound; and a rubber member B containing sulfur and a rubber component containing a diene rubber. The hydrogenated copolymer is obtained by hydrogenating an aromatic vinyl-conjugated diene copolymer, has a weight average molecular weight of 300,000 or more as measured by gel permeation chromatography, and has a hydrogenation rate of a conjugated diene moiety of 80 mol % or more, the rubber member A and the rubber member B are in contact with each other at an interface, and a content of the triazine-thiol compound is 0.1 parts by mass to 5 parts by mass with respect to 100 parts by mass of the rubber component in the rubber member A.

PNEUMATIC TIRE
20230151192 · 2023-05-18 · ·

A pneumatic tire includes: a rubber member A containing a rubber component containing 70 mass % to 100 mass % of a hydrogenated copolymer, sulfur, and a triazine-thiol compound; and a rubber member B containing sulfur and a rubber component containing a diene rubber. The hydrogenated copolymer is obtained by hydrogenating an aromatic vinyl-conjugated diene copolymer, has a weight average molecular weight of 300,000 or more as measured by gel permeation chromatography, and has a hydrogenation rate of a conjugated diene moiety of 80 mol % or more, the rubber member A and the rubber member B are in contact with each other at an interface, and a content of the triazine-thiol compound is 0.1 parts by mass to 5 parts by mass with respect to 100 parts by mass of the rubber component in the rubber member A.

Run flat tire
09849735 · 2017-12-26 · ·

A run flat tire having improved run flat durability is provided. The run flat tire has a side wall part reinforced by a side reinforcing rubber part, and the side reinforcing rubber part is formed by a rubber composition which comprises 100 parts by mass of a diene rubber containing natural rubber and polybutadiene rubber, and from 0.1 to 4.0 parts by mass of a mercaptobenzimidazole compound.

Run flat tire
09849735 · 2017-12-26 · ·

A run flat tire having improved run flat durability is provided. The run flat tire has a side wall part reinforced by a side reinforcing rubber part, and the side reinforcing rubber part is formed by a rubber composition which comprises 100 parts by mass of a diene rubber containing natural rubber and polybutadiene rubber, and from 0.1 to 4.0 parts by mass of a mercaptobenzimidazole compound.

Run flat tire
09849735 · 2017-12-26 · ·

A run flat tire having improved run flat durability is provided. The run flat tire has a side wall part reinforced by a side reinforcing rubber part, and the side reinforcing rubber part is formed by a rubber composition which comprises 100 parts by mass of a diene rubber containing natural rubber and polybutadiene rubber, and from 0.1 to 4.0 parts by mass of a mercaptobenzimidazole compound.

GOLF BALL

In a golf ball having a core and a cover of one or more layer, the core is formed of a material molded under heat from a rubber composition containing (a) a base rubber, (b) water and/or a lower alcohol having a specific molecular weight, (c) an α,β-unsaturated carboxylic acid and/or a metal salt thereof, and (d) an organic peroxide.

The base rubber (a) is a rubber obtained by mixing together (a-1) a polybutadiene and (a-2) an unneutralized ethylene-unsaturated carboxylic acid copolymer, and subsequently neutralizing the copolymer with (a-3) a metal oxide. Component (a-2) has a specific acid content and accounts for a specific portion of the combined amount of components (a-1) and (a-2). The core surface and center have a specific JIS-C hardness difference therebetween.

This ball achieves both a lower spin rate and excellent durability while maintaining a high rebound.

GOLF BALL

In a golf ball having a core and a cover of one or more layer, the core is formed of a material molded under heat from a rubber composition containing (a) a base rubber, (b) water and/or a lower alcohol having a specific molecular weight, (c) an α,β-unsaturated carboxylic acid and/or a metal salt thereof, and (d) an organic peroxide.

The base rubber (a) is a rubber obtained by mixing together (a-1) a polybutadiene and (a-2) an unneutralized ethylene-unsaturated carboxylic acid copolymer, and subsequently neutralizing the copolymer with (a-3) a metal oxide. Component (a-2) has a specific acid content and accounts for a specific portion of the combined amount of components (a-1) and (a-2). The core surface and center have a specific JIS-C hardness difference therebetween.

This ball achieves both a lower spin rate and excellent durability while maintaining a high rebound.