Gc Corporation

Nippon Paint Surf Chemicals Co., Ltd.

Honda Motor Co., Ltd.

Miraial Co., Ltd.

Nintendo Co., Ltd.

Takayuki Ueno

Tomohiro Kumagai

Makoto Takahashi

Hiroki Kato

Haruhiko Horiuchi

Tetsuro Sakuma

Takayuki Murata

Yuki Kasahara

Katsuyoshi Kaneko

Fuminobu Kubo

Yuki Kasai

Yuri Fukuyo

Tatsumasa Hidaka

Teruzo Toi

Nobuhito Takagi

Osamu Izumi

Yu Koganezawa

Yuji Ohtake

Yuya Kotani

Koichiro Izumi

Shuntaro Urata

Makoto Katsu

Sumie Shigeta

Norikazu Nakagaki

Shota Fukushima

Shinko Sato

There is provided a method of producing a polymerizable composition that includes a first polymerizable monomer; and a second polymerizable monomer, a polymer of the second polymerizable monomer, or both, the second polymerizable monomer, the polymer of the second polymerizable monomer, or the both being dispersed in the first polymerizable monomer, the method of producing a polymerizable composition includes dissolving the first polymerizable monomer; the second polymerizable monomer, the polymer of the second polymerizable monomer, or the both in a solvent to obtain a solution in a first step; and evaporating the solvent from the solution in a second step, wherein the first polymerizable monomer is a liquid, and wherein the second polymerizable monomer is a solid.

Method of producing polymerizable composition and polymerizable composition

Provided is a method of performing pre-paint treatment of an automobile body including a high-tensile steel sheet, in which desirable corrosion resistance can be obtained after painting. A method of performing pre-paint treatment of an automobile body, the method including performing an alkaline degreasing step, a first water-washing step, a chemical conversion treatment step, a second water-washing step, and a cationic electrodeposition painting step, in this order, wherein the chemical conversion treatment step is performed using an chemical conversion treatment agent including zirconium (A), free fluorine ions (B), an allylamine-diallylamine copolymer (C), aluminum ions (D), nitrate ions (E) each at a predetermined concentration; the allylamine-diallylamine copolymer (C) forms an acid addition salt having an anionic counter ion, and the pKa of an acid thereof falls within the range of &#x2212;3.7 to 4.8; and the content percentage of diallylamine is 80 mol % or more and 98 mol % or less.

Method of performing pre-paint treatment of automobile body and automobile body

An object of the present invention is to provide a method for manufacturing a dental prosthesis capable of properly arranging a dental reinforcement when a dental prosthesis made of resin where the dental reinforcement is arranged is manufactured. The method includes turning information on an intraoral shape into data: designing, in a form of data, a shape of a resin body that is a part formed of resin based on the data; designing, in the form of data, a position of a dental reinforcement that is to be arranged inside the resin body; and forming, in the form of data, a space and an opening that communicates with an outside in the position in the resin body where the dental reinforcement are to be arranged, based on the position, to design a resin body with an opening.

Method for manufacturing dental prosthesis

The lid body which includes a lid body main body having a lid body inner face and a lid body outer face, is detachable to the opening rim portion, and can close the container main body opening portion, wherein the lid body inner face forms the substrate storing space together with the main body inner face when the container main body opening portion is closed. The external component made from resin that is mounted to at least one of a part of the container main body other than the main body inner face, and a part of the lid body main body other than the lid body inner face. The external component is annealed.

Substrate storing container

A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.

Polymerizable composition for dental use

A metal surface treatment agent and a metal surface treatment which impart excellent electrodeposition coatability (smoothness and throwing power) to a metallic base while heightening corrosion resistance. The metal surface treatment agent that is used in a pretreatment of an electrodeposition coating of a metallic base and includes one or more zirconium, titanium, or hafnium metallic elements, one or more silane coupling agents, hydrolysates thereof, or polymers thereof, and an electrophilic reactive group-containing compound (C) containing a homocycle and a heterocycle in one molecule and has a water solubility at 20&#xb0; C. of 0.2 to 30 g/L, and the contents of the metallic elements, the coupling agents, and the electrophilic reactive group-containing compound satisfy a given relationship.

Metal surface treatment agent, and metal surface treatment method

In order to produce a dental cast product having the flat surface, by blending a dispersant with a phosphate-based investing material to improve the dispersability of an aggregate powder and a binder powder so as to prevent a agglomeration of the aggregate powder and the binder powder thereby forming a wall surface of an cavity in a mold to be flat, and also to make more various kinds of powders available for the aggregate powder without restriction to quartz, cristobalite and tridymite, the phosphate-based dental investing material comprising a mixed powder including an aggregate powder and a phosphate-based binder powder, and a liquid, with an alkaline metal salt of phosphoric acid being added to at least one of the mixed powder and the liquid.

Phosphate-based dental investing material

A dental restorative composition is disclosed, comprising: (a) a methacrylate or acrylate monomer, (b) an organic-inorganic composite filler prepared by curing a mixture of a particulate filler having a mean particle size of 20 nm or less with a methacrylate or acrylate monomer having a viscosity of 60 cP or more and pulverizing the cured mixture, (c) a particulate filler having a mean particle size of 20 nm or less, and (d) a polymerization initiator, and further, if desired, (e) a glass powder having a maximum particle size of 5 &mgr;m or less and having a mean particle size of from 0.5 to 2 &mgr;m. The dental restorative composition according to the invention gives restorations having surface smoothness and transparency similar to natural teeth, having superior esthetics and superior physical properties such as bending strength and bending strain energy characteristics, and being provided with easy polishing.

Dental restorative composition

An adhesive for dental resin composite materials is disclosed, which comprises (a) from 10 to 40 parts by weight of tetrahydrofurfuryl methacrylate; (b) from 90 to 60 parts by weight of one or more methacrylates having at least one unsaturated double bond in one molecule thereof; and (c) from 0.04 to 0.12 part by weight, based on 100 parts by weight of the monomer mixture consisting of (a) and (b), of a photopolymerization initiator, the adhesive for dental resin composite materials of the present invention having a proper viscosity, not causing the color remaining, is superior in the operability and esthetics, having further a satisfactory adhesive strength, and is of safe even when used in the mouth.

Adhesive for dental resin composite materials

Growing community of inventors

Tokyo, Japan

Takayuki Ueno