Abstract: A 3D printed thermal expansion structure includes a thermoplastic material and a thermal expansion material, wherein the thermoplastic material is in a range from 50 to 90 wt % based on a weight of the 3D printed thermal expansion structure, and the thermal expansion material is in a range from 10 to 50 wt % based on the weight of the 3D printed thermal expansion structure. The thermoplastic material and the thermal expansion material are mixed to form a mixed material, and the mixed material is utilized by a 3D printing apparatus to form a solid object, and the solid object is heated to form the 3D printed thermal expansion structure. A manufacturing method of a 3D printed thermal expansion structure is provided herein.

Abstract: A light-cured anti-slip structure includes an anti-slip layer fixed onto a substrate surface. The anti-slip layer is composed of the light-curing composite, wherein the light-curing composite includes 50 wt % to 100 wt % of photopolymer, 0.5 wt % to 20 wt % of photoinitiator, 5 wt % to 50 wt % of thermosetting polymer, less than or equal to 5 wt % of thermal curing initiator, which are mixed. The photoinitiator receives light energy to trigger a light-curing reaction of the photopolymer. Simultaneously the photoinitiator releases heat to activate the thermal curing initiator, the thermal curing initiator induces a curing reaction of the thermosetting polymer to form the anti-slip layer. The light-cured anti-slip structure provided by the present invention could be quickly cured on the substrate surface, and the manufacturing time and the cost of material could be significantly reduced. A manufacturing method of a light-cured anti-slip structure is provided as well.

Abstract: A method of producing a reclaimed rubber made of recycled shoe material waste includes the following steps. Step S1: collect a scrap rubber which is the shoe material waste. Step S2: grind the scrap rubber to form scrap rubber granules. Step S3: devulcanize the scrap rubber granules to form a reclaimed rubber. A reclaimed material for manufacturing shoes includes a reclaimed rubber formulation and a crosslinking agent, wherein the reclaimed rubber formulation is constituted by compounding a basic rubber formulation and the reclaimed rubber, wherein the reclaimed material for manufacturing shoes includes 65-94.8 wt % of the basic rubber formulation, 5-30 wt % of the reclaimed rubber, and 0.2 wt % to 5 wt % of crosslinking agent. Mechanical properties of the reclaimed material for manufacturing shoes meet required standards of shoe outsole material. A method of consuming rubber waste produced during the shoe manufacturing process is disclosed herein.

Abstract: A shoe component includes a foam member including a thermoplastic material and a mixed material mixed to each other, wherein the weight percentage of the thermoplastic material is 90 wt % to 99 wt %, and the weight percentage of the mixed material is 10 wt % to 1 wt %. A manufacturing method of the shoe component is also disclosed herein.

Abstract: The invention provides a method for manufacturing shoe material containing leather and cloth and a shoe material made therefrom. The method includes the steps of: a) material preparation; b) leather treatment; c) gluing; d) TPU (thermoplastic polyurethane) placement; and e) hot pressing. This saves time compared to the sewing process. The shoe material includes a cloth, a leather, a first hot-melt adhesive layer selectively provided on said leather or said cloth, and a TPU film having a second hot-melt adhesive layer covered on the leather and the cloth with the second hot-melt adhesive layer in contact with the leather and the cloth. In this way, the problem of excessive adhesive is avoided.

Abstract: A molding thermal expansion structure includes a thermoplastic material and a thermal expansion material, wherein the thermoplastic material is 50 wt % to 90 wt % based on a weight of the molding thermal expansion structure; the thermal expansion material is 50 wt % to 10 wt % based on a weight of the molding thermal expansion structure; wherein, the thermal expansion material is expanded from a foaming original material through a pre-foaming process; the thermoplastic material and the thermal expansion material are mixed to form a mixed material; the mixed material is thermally expanded to form a thermal expansion structure in a molding apparatus. The molding thermal expansion structure provided in the present invention could satisfy various needs of light-weighted products. A molding method of the thermal expansion structure is also provided herein.

Abstract: A 3D printed thermal expansion structure includes a thermoplastic material and a thermal expansion material, wherein the thermoplastic material is in a range from 50 to 90 wt % based on a weight of the 3D printed thermal expansion structure, and the thermal expansion material is in a range from 10 to 50 wt % based on the weight of the 3D printed thermal expansion structure. The thermoplastic material and the thermal expansion material are mixed to form a mixed material, and the mixed material is utilized by a 3D printing apparatus to form a solid object, and the solid object is heated to form the 3D printed thermal expansion structure in a manufacturing method of a 3D printed thermal expansion structure provided herein.

Abstract: A shoe component includes a foam member including a thermoplastic material and a mixed material mixed to each other, wherein the weight percentage of the thermoplastic material is 90 wt % to 99 wt %, and the weight percentage of the mixed material is 10 wt % to 1 wt %. A manufacturing method of the shoe component is also disclosed herein.

Abstract: A thermoplastic vulcanizate composition, a method for forming a thermoplastic vulcanizate with the composition and a product thereof are disclosed. The thermoplastic vulcanizate composition includes a thermoplastic polyurethane, a rubber, a vulcanizing agent for crosslinking the rubber, and an additive. Wherein, a hardness of the thermoplastic polyurethane is at least 19A greater than a hardness of the rubber, and the hardness of the thermoplastic polyurethane is equal to or greater than 70A. A weight ratio of the thermoplastic polyurethane to the rubber is from 30:70 to 70:30. The crosslinked rubber is dispersed in a continuous phase constituted by the thermoplastic polyurethane.

Abstract: A thermoplastic vulcanizate composition, a method for forming a thermoplastic vulcanizate with the composition and a product thereof are disclosed. The thermoplastic vulcanizate composition includes a thermoplastic polyurethane, a rubber, a vulcanizing agent for crosslinking the rubber, and an additive. Wherein, a hardness of the thermoplastic polyurethane is at least 19A greater than a hardness of the rubber, and the hardness of the thermoplastic polyurethane is equal to or greater than 70A. A weight ratio of the thermoplastic polyurethane to the rubber is from 30:70 to 70:30. The crosslinked rubber is dispersed in a continuous phase constituted by the thermoplastic polyurethane.

Abstract: A golf ball core for use in a multi-piece golf ball includes a solid sphere and between 100 and 300 spaced polygonal protrusions extending from the solid sphere in a radially outward direction. The sphere is substantially formed from an ionomeric material, and has a diameter (D) of between 24 mm and 32 mm. The polygonal protrusions extend from the sphere by a maximum distance of between 0.15 mm and 1.0 mm.

Abstract: A multi-layer golf ball includes a core, an intermediate layer surrounding the core, and a cover layer surrounding the intermediate layer. The core defines an outer surface that includes a plurality of polygonal land portions substantially aligned on a common sphere, which has a diameter of between 22 mm and 32 mm. The intermediate layer has a radially inward-facing surface that is flush with the outer surface of the core, and has a radial thickness of between 4 mm and 9 mm. The outer surface of the core defines a first set of annular grooves disposed about a first axis, and a second set of annular grooves disposed about a second axis. Each of the first and second set of annular grooves extend radially inward from the common sphere, and the first axis and the second axis are orthogonal.

Abstract: A golf ball includes a relatively large polymer core and has a soft ball compression. The polymer is, in the illustrated embodiments, a highly neutralized acid polymer. The golf ball may, optionally, include an outer core made of a different material, such as a thermoset polybutadiene rubber. The golf ball may, optionally, include a mantle layer made of an ionomer material. The inner core having a diameter of between 24 mm and 40 mm, and in some designs, between 28 mm and 32 mm, yields increased iron initial velocity and lower iron spin while maintaining driver performance.

Abstract: A cured elastomer golf ball component is made by heating an elastomer compound containing an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, and first and second free radical initiators to a first crosslinking temperature T1 in a compression mold and partially crosslinking the elastomer, then heating to a second crosslinking temperature T2 and curing the elastomer component of the golf ball. Either: (i) the first initiator has a half-life of about 0.2-5 minutes at T1, the second initiator has a half-life of about 0.2-5 minutes at T2, and T2 is higher T1 by at least about 30° C.; or (ii) the second initiator's one-minute half-life temperature is at least about 30° C. higher than the first initiator's one-minute half-life temperature, T1 is within about 20° C. of the first initiator's one-minute half-life temperature, and T2 is within about 20° C. of the second initiator's one-minute half-life temperature.

Abstract: A thermoplastic multi-layer golf ball has a core center including a first thermoplastic material, a core layer including a second thermoplastic material, and a cover including a third thermoplastic material. The core center has a diameter of 21-29 mm and a surface Shore D hardness H1 of less than about 50. The core layer is at least about 5 mm thick with an outer surface Shore D hardness H2 of more than about 50. The cover has an outer surface Shore D hardness H3 of more than about 60. H3 is up to about 20 Shore D units higher than H2, and H2 is up to about 10 Shore D units higher than H1. The core layer has a specific gravity that is at least 0.1 g/cm3 greater than the specific gravity of the core center.

Abstract: A cured elastomer golf ball component is made by heating an elastomer compound containing an ethylenically unsaturated elastomer, an ethylenically unsaturated monomer, and first and second free radical initiators to a first crosslinking temperature T1 in a compression mold and partially crosslinking the elastomer, then heating to a second crosslinking temperature T2 and curing the elastomer component of the golf ball. Either: (i) the first initiator has a half-life of about 0.2-5 minutes at T1, the second initiator has a half-life of about 0.2-5 minutes at T2, and T2 is higher T1 by at least about 30° C.; or (ii) the second initiator's one-minute half-life temperature is at least about 30° C. higher than the first initiator's one-minute half-life temperature, T1 is within about 20° C. of the first initiator's one-minute half-life temperature, and T2 is within about 20° C. of the second initiator's one-minute half-life temperature.

Abstract: A mold for manufacturing hemispherical sections for a golf ball includes a mold plate and a movable insert. The mold plate includes a first surface. The movable insert includes a second surface. The moveable insert is connected to the mold plate. The first surface of the mold plate and the second surface of the movable insert may move relative to one another during molding of the hemispherical section for a golf ball.

Abstract: In a golf ball, the surface of the core layer has a predetermined number of depressions, and the depressions have a predetermined total volume. By means of the aforesaid structural design, the spin rate of the golf ball is effectively controlled, and the golf ball has the advantages of simple design and high productivity.

Abstract: A golf ball is provided with a compression deformation of 2 mm and 4 mm and has a core made from a thermoplastic material, an intermediate layer made from a thermoset material, and at least one cover layer. The COR of the core falls between 0.78 and 0.89 and is higher than that of the whole golf ball. In this way, the golf ball has long flight distance and good hitting feel to fit both of the amateur golfers, whose swing speed is lower, and the low-handicap or professional golfers, whose swing speed is higher.

Abstract: The present invention provides a multilayer solid golf ball having an enclosing layer between a core and a cover. The core has a coefficient of restitution (COR) greater than 0.750, and the enclosing layer has a thermal conductivity less than or equal to 0.20 W/m-K. The enclosing layer with low thermal conductivity may reduce the decrease of the COR of the ball in a cold weather that improves the ball control and the flying distance.