The invention relates to an artificial nail tip having a plurality of smile line guidelines embedded on the surface of the artificial nail tip, which allows a user or a nail professional to easily create smile lines of varying depths on the artificial nail tip.

The present invention relates to a heat conservation-insulating material which is coated with a UV film and has maximized heat efficiency, wherein: the material uses a thermosetting water-soluble acrylic adhesive to ensure the minimum uniform coating film thickness required for corrosion prevention of a pipe and strength reinforcement during curing and allow easy installation with flexibility and sufficient working time before the installation; and a surface of the insulating material is UV-coated and thermosetting-coated by dual-cure curing method so that even a part where light or ultraviolet rays cannot penetrate can be cured, a heat conservation-insulating material having vivid colors can be obtained even when dye and pigment are added to realize various colors, and the cutting processability is excellent to enable a uniform coating on various surfaces, such as metal, plastic, glass, ceramics, stone, wood, and various building materials, or even on sharply bent shapes.

The present invention relates to a heat conservation-insulating material which is coated with a UV film and has maximized heat efficiency, wherein: the material uses a thermosetting water-soluble acrylic adhesive to ensure the minimum uniform coating film thickness required for corrosion prevention of a pipe and strength reinforcement during curing and allow easy installation with flexibility and sufficient working time before the installation; and a surface of the insulating material is UV-coated and thermosetting-coated by dual-cure curing method so that even a part where light or ultraviolet rays cannot penetrate can be cured, a heat conservation-insulating material having vivid colors can be obtained even when dye and pigment are added to realize various colors, and the cutting processability is excellent to enable a uniform coating on various surfaces, such as metal, plastic, glass, ceramics, stone, wood, and various building materials, or even on sharply bent shapes.

An object of the present invention is to provide an acrylic resin powder suitable for hot melt adhesives which dissolves in polyol components such as polyalkylene glycols faster than conventional ones, as well as a resin composition which can be produced with lower energy than conventional ones. The object is achieved by using an acrylic resin powder comprising: a copolymer which contains a methyl methacrylate unit, wherein a volume average particle size of a primary particle is 0.1 to 10 μm, a volume average particle size of a secondary particle is 20 to 80 μm, a weight average molecular weight is 10,000 to 500,000, and the acrylic resin powder is soluble in polypropylene glycol having a weight average molecular weight of 1000 under stirring at a concentration of 10% by mass at 60° C. for 60 minutes.

An object of the present invention is to provide an acrylic resin powder suitable for hot melt adhesives which dissolves in polyol components such as polyalkylene glycols faster than conventional ones, as well as a resin composition which can be produced with lower energy than conventional ones. The object is achieved by using an acrylic resin powder comprising: a copolymer which contains a methyl methacrylate unit, wherein a volume average particle size of a primary particle is 0.1 to 10 μm, a volume average particle size of a secondary particle is 20 to 80 μm, a weight average molecular weight is 10,000 to 500,000, and the acrylic resin powder is soluble in polypropylene glycol having a weight average molecular weight of 1000 under stirring at a concentration of 10% by mass at 60° C. for 60 minutes.

Provided is a masking tape to be used at the time of formation of an electromagnetic wave shield, which is excellent in followability to irregularities, and which is capable of being peeled off from an irregular surface without any adhesive residue. The masking tape for forming an electromagnetic wave shield includes a pressure-sensitive adhesive layer that is increased in modulus of elasticity through active energy ray irradiation to 20 times or more as high as that before the active energy ray irradiation, wherein the pressure-sensitive adhesive layer has a modulus of elasticity after the active energy ray irradiation of 500 MPa or less.

A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.

A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.

A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.

Clickable waterborne polymers, click crosslinking of waterborne polymers, click crosslinked waterborne polymers, clickable functional compounds, and click functionalized waterborne polymers are presented. For example, the waterborne polymers have pendant groups bearing alkyne and/or azide groups and alkyne. For example, the functionalized azide-containing functional compounds such as antimicrobial or infrared-refractive compounds. The click crosslinking of clickable waterborne polymers or polymer mixtures, and the click conjugation of clickable waterborne polymers with clickable functional compounds such as clickable antimicrobial or infrared-refractive compounds, which resulted in functional waterborne polymers with antimicrobial or infrared-refractive functions, are presented. The presented polymers, including clickable waterborne polymers, click-crosslinked waterborne polymers, and functional waterborne polymers with, for example, antimicrobial or infrared-refractive functions, can be used in applications such as coating and adhesive compositions. The aqueous suspensions of waterborne polymers can also be used directly as drug delivery systems, or can be crosslinked into hydrogels or composites for biomedical applications such as drug/cell delivery, tissue engineering, and other medical device.