摘要:
Provided are a flame-retardant sheet showing extremely high flame retardancy and a flame-retardant composite material using the flame-retardant sheet and showing extremely high flame retardancy despite including a combustible base material. The flame-retardant sheet of the present invention includes: a coating film formed of a silicone resin composition (C) containing at least an inorganic oxide particle-containing condensation-reactive silicone resin; and an adhesive layer or a pressure-sensitive adhesive layer. The flame-retardant composite material of the present invention includes the flame-retardant sheet of the present invention on at least one surface side of a base material, the flame-retardant composite material having the adhesive layer or the pressure-sensitive adhesive layer between the base material and the coating film.
摘要:
Provided is a flame-retardant member having flexibility and a high degree of flame retardancy. A flame-retardant polymer member of the present invention is a flame-retardant polymer member having a polymer layer (B) and a flame-retardant layer (A) on at least one surface of the polymer layer (B), in which the flame-retardant layer (A) is a layer containing a layered inorganic compound (f) in a polymer (X) .
摘要:
Provided is a viscoelastic article which exerts different properties between one surface and the other surface thereof, which has a transparent appearance, and which less causes staining of objects to which the viscoelastic article is adopted. The viscoelastic article is an article having a multilayer structure including a polymer layer, and a monomer-absorptive layer capable of absorbing at least one of monomer component(s) constituting the polymer, in which the polymer layer is a polymer layer containing an elastomer unevenly distributed and enriched at an interface, or in the vicinity thereof, opposite to the monomer-absorptive layer. The viscoelastic article may further include a cover film on the polymer layer containing the unevenly distributed elastomer on an opposite surface to the monomer-absorptive layer. The vicinity of the interface opposite to the monomer-absorptive layer is preferably a region ranging from the interface opposite to the other interface with the monomer-absorptive layer and occupying, in a thickness direction, 50% or less of the total thickness.
摘要:
A foamed sheet according to the present invention has a thickness of 30 to 500 µm and includes a foam. The foam has a density of 0.2 to 0.7 g/cm 3 , an average cell diameter of 10 to 150 µm, and a peak top of loss tangent (tan ´) occurring in a temperature range of from -30°C to 30°C, where the loss tangent is defined as the ratio of a loss modulus to a storage modulus determined at an angular frequency of 1 rad/s in dynamic viscoelastic measurement of the foam. The foam preferably has a maximum of the loss tangent (tan ´) in the temperature range of from -30°C to 30°C of 0.2 or more.
摘要:
The flame-retardant silicone resin composition of the present invention comprises: an inorganic oxide particle-containing condensation-reactive silicone resin (A) comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group are crosslinked with the polysiloxane resin by chemical bonds; and inorganic particles (B). The inorganic oxide particles are preferably at least one type of inorganic oxide particles selected from the group consisting of silica, alumina, glass frit, and antimony-doped tin oxide.
摘要:
There is provided a light diffusing flame-resistant composite member which has both flame resistance and flexibility and has excellent light diffusibility. The light diffusing flame-resistant composite member of the present invention includes a glass fiber sheet and a condensation-reactive silicone resin, wherein at least one surface of the glass fiber sheet is coated with the condensation-reactive silicone resin, or the glass fiber sheet is impregnated with the condensation-reactive silicone resin, and wherein the composite member has a total light transmittance of 60% or more and a haze value of 80% or more. The condensation-reactive silicone resin may be an inorganic oxide particle-containing condensation-reactive silicone resin comprising a crosslinking structure in which inorganic oxide particles dispersed in a polysiloxane resin having a condensation-reactive group is crosslinked with the polysiloxane resin by chemical bonds.
摘要:
Provided is a gas barrier article which exerts gas barrier properties by the action of a gas barrier material contained in a small content. The gas barrier article is an article having a multilayer structure including a polymer layer and a monomer-absorptive layer capable of absorbing at least one of monomer component(s) constituting the polymer, in which the polymer layer is a polymer layer containing the gas barrier material unevenly distributed in the layer and enriched at an interface, or in the vicinity thereof, opposite to the monomer-absorptive layer. The gas barrier article may further include a cover film on an opposite side of the polymer layer opposite to the monomer-absorptive layer. The vicinity of the interface opposite to the monomer-absorptive layer is preferably a region ranging from the interface opposite to the monomer-absorptive layer and occupying, in a thickness direction, 50% or less of the total thickness.
摘要:
The present invention relates to a process for producing a pressure-sensitive adhesive layer, which includes irradiating a photopolymerizable acrylic pressure-sensitive adhesive composition layer provided between two films with an active energy beam to polymerize the photopolymerizable acrylic pressure-sensitive adhesive composition layer, in which the polymerization is performed while a layer of a composition for preventing polymerization inhibition which is curable with an active energy beam in the atmosphere is provided on a side surface of the photopolymerizable acrylic pressure-sensitive adhesive composition layer. According to the the process for producing a pressure-sensitive adhesive layer of the present invention, owing to the construction as discussed above, it is possible to reuse a film. Moreover, it is possible to prevent a lowering in the cohesive force in the side surface of the thus formed pressure-sensitive adhesive composition layer caused by a lowering in the polymerization degree in the side surface of the photopolymerizable acrylic pressure-sensitive adhesive composition layer during the photopolymerization.
摘要:
An adhesive tape for continuously arranging electronic parts, which comprises a base material and an adhesive layer formed thereon, the adhesive layer comprising from 20 to 150 parts by weight of a rosin resin per 100 parts by weight of a thermoplastic resin having no carboxyl group in side chains. The adhesive tape exhibits good adhesive properties, causing no slippage of the electronic parts, is excellent in impact resistance, and capability of holding the electronic parts even under high temperature and high humidity conditions.