Abstract: Provided are a negative electrode binder composition which has excellent slurry stability without using a thickener, such as cellulose, in a negative electrode active material for an LIB secondary battery, and which is suppressed in the resistance to swelling by a solvent, and a negative electrode using the same and a secondary battery. A negative electrode binder composition comprising a copolymer having a hydroxyl group-containing monomer and an acid group-containing monomer as essential components, in which the copolymer has a weight average molecular weight of 700,000 or more, as measured using an aqueous GPC measurement apparatus, and in which a dried polymer film of the negative electrode binder composition has a swelling ratio of 0 to 10% by weight, as measured after immersed in a carbonate mixed solvent at 45° C. for 72 hours.

Abstract: The method for producing a molded resin product with a simulated wood grain pattern on an exterior surface according to the present invention comprises the steps of: supplying a first molten resin into a mold cell to form a resin layer with said exterior surface; making a plurality of grooves through said resin layer so as to reach said exterior surface before said molten resin solidifies; filling up said grooves with a second molten resin such that said exterior surface exhibits simulated wood grain patterns; and solidifying said first resin and said second resin.

Abstract: A method for producing artificial marble having a stripe pattern comprising injecting liquid resins having different colors into a molding cell so that they are laminated to form two or more layers; then moving a comb-like tool through the laminated liquid resins while allowing the teeth to contact the bottom surface of the molding cell, then curing the liquid resins to form artificial marble, wherein, the comb-like tool is allowed to move through the liquid resins while the interval between teeth of the comb-like tool is allowed to vary. Artificial marble can be produced having a natural marble-like appearance in which the interval of stripe varies in a natural fashion or having a radial cut moire stripe pattern.

Abstract: A method for producing artificial marble having a stripe pattern comprising injecting liquid resins having different colors into a molding cell so that they are laminated to form two or more layers, then moving a comb-like tool through the laminated liquid resins while allowing the teeth to contact the bottom surface of the molding cell, then curing the liquid resins to form artificial marble, wherein, the comb-like tool is allowed to move through the liquid resins while the interval between teeth of the comb-like tool is allowed to vary. Artificial marble can be produced having a natural marble-like appearance in which the interval of stripe varies in a natural fashion or having a radial cut moire stripe pattern.

Abstract: A method in which a liquid resin in which a coloring agent is dispersed non-uniformly is injected into a molding cell, one or more liquid resins having different colors are laminated to form one or more layers on the liquid resin in which a coloring agent is dispersed non-uniformly, a comb-like tool is allowed to move through the laminated liquid resins while allowing the teeth to contact the bottom surface of the molding cell, and then, liquid resins are cured to produce artificial marble having stripe pattern. Artificial marble having a radial cut moire pattern with a delicate hue of wood and a natural appearance, or a stripe pattern having a natural marble-like appearance excellent in texture and deep feeling can be formed in a simple manner.

Abstract: A process for producing artificial marble by curing liquid resins in a molding cell, which comprises a step in which liquid resins each having different color are laminated by injection in the molding cell so that at least two layers are formed, then a comb-like tool is moved in the liquid resins laminated while the blades of the tool are in contact with the bottom of the molding cell to produce a striped pattern formed from at least the liquid resin of a layer which is adjacent a bottom layer and which flows to the bottom of the molding cell, and then the liquid resins are cured to produce artificial marble having a striped pattern

Abstract: A dental adhesive composition comprising, as the main components, (a) a polymer powder obtained by radical copolymerization of at least one (meth)acrylate unsaturated monomer containing no carboxyl or anhydride group in its molecule, with a silane compound having a polymerizable unsaturated group, (b) at least one radical polymerizable unsaturated monomer, and (c) a radical polymerization initiator.

Abstract: Disclosed is a process for producing dental polymeric shaped articles resistant to the adhesion of plaque which comprises the steps of shaping and curing a dental composition containing a monomer having at least one (meth)acryloyloxy group, and bringing the cured product into contact with a halogen or a halogen compound. Also disclosed is a dental composition comprising a monomer having at least one (meth)acryloyloxy group and a polymerization initiator, which is characterized by having added thereto at least one of a halogen and a halogen compound. When cured, this dental composition produces dental polymeric shaped articles resistant to the adhesion of plaque.

Abstract: Disclosed is a dental composition comprising a (meth)acrylic ester compound as the principal component and containing a polymerization initiator, which is characterized by having incorporated therein a grafted rubber obtained by polymerizing at least one ethylenically unsaturated monomer in the presence of a rubber. This dental composition can be cured to yield a cured product having excellent strength properties and, therefore, is particularly useful in applications such as a molar restoration material and a denture base resin.

Abstract: A material for dentistry having a low odor, a low stimulation and a proper dough stage time is here disclosed which is prepared by blending a monomer selected from the group consisting of (meth)acrylate compounds represented by the general formula ##STR1## R.sub.1 is a hydrogen atom or a methyl group, each of R.sub.3, R.sub.6 and R.sub.10 is an alkyl group, and each of R.sub.2, R.sub.5, R.sub.8 and R.sub.9 is an alkylene group) and (meth)acrylate dimers.

Abstract: This invention provides dental adhesive compositions consisting essentially of(a) an aliphatic amine salt of a polymerizable phosphoric ester, as represented by the formula ##STR1## where R and R' are specific radicals; (b) at least one radical-polymerizable unsaturated monomer; and(c) a radical polymerization initiator. These compositions are useful in bonding living dental tissue restoration materials to living tooth tissues, particularly to dentin.

Abstract: A photopolymerizable composition comprising a vinylic compound, a sulfur-containing compound and an .alpha.-diketone is disclosed. The sulfur-containing compound may be a mercaptobenzoic acid or a polysulfide.

Abstract: A visible light ray-curable monomeric composition for fastening loose teeth, comprising: a filler component consisting of fine, solid particles having an average size of 0.01 to 100 .mu.m and in an amount of 40% to 85% based on the weight of the total weight of the composition; a polyfunctional monomer component consisting of a radical-polymerizable, polyfunctional monomer; a monofunctional monomer consisting of a radical-polymerizable, monofunctional monomer; and a photopolymerization initiator; having a viscosity of 1,000 to 500,000 cps at a temperature of 25.degree. C., and contained in a light-shielded container.

Abstract: A dental adhesive composition containing as major components:(a) at least one isocyanate-group-containing urethane prepolymer,(b) at least one isocyanate-group-containing silane compound,(c) at least one radical-polymerizable unsaturated monomer, and(d) at least one initiator selected from the group consisting of redox polymerization initiators and photopolymerization initiatorsis disclosed.This composition is excellent in bonding properties when it is used to bond a living dental tissue with a restoring material such as a metal, organic polymer, and ceramic. Also, this adhesive composition does not require a troublesome pretreatment of the restoring material with an etching agent such as phosphoric acid when the restorating material is required to bond to the living tissue.

Abstract: A photopolymerizable dental composition, which comprises:(A) an organic composite filler obtained by polymerizing at least one carboxylic acid monomer of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOY group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a --COOZ group, a halogen atom, or a phenyl group or a derivative thereof; R.sub.3 is a hydrogen atom, a C.sub.1 -C.sub.15 alkyl group, a halogen atom, or a phenyl group or a derivative thereof; and each of X, Y and Z is a hydrogen atom, NH.sub.4 or an alkali metal atom; or the formula: ##STR2## wherein each of R.sub.4 and R.sub.5 is a hydrogen atom, a C.sub.1 -C.sub.

Abstract: Disclosed are dental adhesive compositions consisting essentially of(a) at least one urethane prepolymer containing one or more isocyanate groups, or a blend of the urethane prepolymer and an inert diluent;(b) at least one radical-polymerizable unsaturated monomer;(c) a photopolymerization initiator;and, if desired,(d) a polymerizable phosphoric ester compound having a specific structure.These dental adhesive compositions can be used to bond a restorative material to dentin without requiring any troublesome pretreatment with an etching agent such as phosphoric acid, and can exhibit bonding power sufficient for practical purposes.

Abstract: A photopolymerizable dental composition, which comprises:(A) an organic composite filler obtained by polymerizing a sulfonic acid or sulfonate monomer of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.20 alkyl group, a phenyl group or a derivative thereof, or a halogen atom; ##STR2## wherein each of R.sub.2 and R.sub.3 is a hydrogen atom or a C.sub.1 -C.sub.15 alkyl group, R.sub.4 is a C.sub.1 -C.sub.15 alkylene group, m is an integer of from 1 to 20 and n is an integer of from 0 to 20; and Y is a hydrogen atom, NH.sub.4 or an alkali metal atom, and at least one radical polymerizable vinyl monomer in a polymerization system in which an inorganic compound is dispersed;(B) a monomer mixture comprising 2,2-bis[4-(methacryloxyethoxy)phenyl]propane, at least one hexa-functional urethane (meth)acrylate of the formula: ##STR3## wherein X is ##STR4## wherein n is an integer of from 1 to 10, and each of R.sub.1 and R.sub.

Abstract: A method for preparing a polymeric composition in which an inorganic compound is firmly consolidated in an organic polymer, which comprises polymerizing at least one radical polymerizable vinyl monomer in an aqueous medium polymerization system comprising an inorganic compound dispersed in the presence of an organic acid monomer or organic acid salt monomer, by using a radical polymerization initiator.

Abstract: A photopolymerizable composition comprising a vinyl monomer, a mercaptocarboxylic acid/.alpha.-diketone photopolymerization initiator and a storage stabilizer. The composition may admit of a filler, and exhibits excellent mechanical strength, storage stability, color and resistance to coloring, and availability.

Abstract: A method for preparing a polymeric composition in which an inorganic compound is firmly consolidated in an organic polymer, which comprises polymerizing at least one radical polymerizable vinyl monomer in an aqueous medium polymerization system comprising an inorganic compound dispersed in the presence of an organic acid monomer or organic acid salt monomer, by using a radical polymerization initiator.