Mitsubishi Rayon Company, Limited

Hitoshi Ige

Nobuhiro Mukai

Isao Sasaki

Junko Atarashi

Akira Yanagase

Takayuki Makino

Hiroyuki Watanabe

Naoki Yamamoto

Masao Kobayashi

Seiji Tone

Toru Tokimitsu

Shougo Okazaki

Naoto Ohsuga

Hajime Yasuda

Eiji Ihara

Artificial marble and method for preparing it

Composite material and molded articles containing same

Block copolymer and a preparation process thereof

Coating composition and molded articles having a surface coated therewith

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.

Dental composition and process for producing dental polymeric shaped

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.

Dental composition

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.

Material for dentistry

This invention provides dental adhesive compositions consisting essentially of

Dental adhesive composition

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.

Visible light ray-curable monomeric composition for fastening loose teeth

A dental adhesive composition containing as major components:

A photopolymerizable dental composition, which comprises:

Photopolymerizable dental composition

Disclosed are dental adhesive compositions consisting essentially of

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.

Method for preparing a polymeric composition

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.

Growing community of inventors

Ohtake, Japan

Hitoshi Ige