Zeon Corporation

The University of Tokyo

Yupo Corporation

Cad Center Corporation

Atsushi Sone

Hidekazu Tanaka

Tamio Shikano

Shinsuke Ashida

Tetsuya Toyoshima

Kohei Arakawa

Hiroshi Koike

Akira Isogai

Osamu Kobayashi

Tsutomu Nagamune

Mitsunori Abe

Tomoaki Hayano

Naomi Hayano

Bujin Goh

Masakazu Hashimoto

Toru Murata

Disclosed is a fixing member in which adhesion of foreign substances to its surface is suppressed, and which hardly causes lateral displacement when such fixing members are attached together to form a joined state. The fixing member disclosed herein includes a surface having a coefficient of kinetic friction of 1.50 or less, an arithmetic mean roughness Ra of 5.00 μm or less, and a shear stress at the time of self-attachment of 100.00 N or more.

Fixing member and laminated body

A method for producing a self-adsorbing foam sheet is provided. The method comprising making a resin composition for a self-adsorbing foam sheet, the resin composition including: 100 parts by mass of a (meth)acrylic acid ester copolymer resin which includes an N-methylol group, and whose glass transition temperature is &#x2212;10&#xb0; C. or less; and 1 to 20 parts by mass of a carbodiimide crosslinking agent; foaming the resin composition, to obtain foam of the resin composition; and shaping the foam into a sheet and after that, carrying out crosslinking reaction on the (meth)acrylic acid ester copolymer resin.

Method for producing a self-adsorbing foam sheet and method for producing a self-adsorbing laminated foam sheet

The present disclosure is directed to provide a package which enables repeated opening and sealing of an opening, and can be favorably closed by bringing a pair of resin adhesive parts into contact with each other while preventing sticking of materials to each resin adhesive part. A package of the present disclosure comprises a main body having an internal space and an opening in communication between the internal space and an outside; and a pair of, i.e., two, resin adhesive parts which are disposed so as to be capable of being brought into contact with each other for sealing the opening. Here, the 90-degree peel force between the pair of resin adhesive parts is 0.02 N or more, the coefficient of dynamic friction of each of the two resin adhesive parts is 1.50 or less, and the tack force of each of the two resin adhesive parts is 1.60 N or less.

Package

Disclosed is a dispersion of metal-containing oxidized cellulose nanofibers with superior dispersibility, which is applicable to various uses. The disclosed metal-containing oxidized cellulose nanofiber dispersion comprises a dispersion medium, and metal-containing oxidized cellulose nanofibers containing a metal other than sodium in salt form, wherein the metal-containing oxidized cellulose nanofibers have a number-average fiber diameter of 100 nm or less and an average degree of polymerization of 100 to 2,000.

Metal-containing oxidized cellulose nanofiber dispersion and method of producing the same

Provided is a laminated sheet including an upper paper layer and a release sheet layer, the upper paper layer including synthetic paper and an adsorbing layer, the synthetic paper, the adsorbing layer and the release sheet layer, in order, being laminated, wherein the adsorbing layer is a foam sheet of a resin composition, the resin composition containing crosslinking resultant of 100 parts by mass of a (meth)acrylic acid ester copolymer resin and 1 to 20 parts by mass of a carbodiimide crosslinking agent, the (meth)acrylic acid ester copolymer resin having a N-methylol group, a glass transition temperature of the (meth)acrylic acid ester copolymer resin being no more than &#x2212;10&#xb0; C., the release sheet layer consists of a thermoplastic resin sheet, and a rate of tensile elastic moduli is 0.1 to 10, the rate being calculated from a tensile elastic modulus of the upper paper layer and a tensile elastic modulus of the release sheet layer, and a peel strength of the adsorbing layer and the release sheet layer is 5 to 30 N/m, the laminated sheet using a new foamed resin layer having well-balanced properties, the amount of formaldehyde emitted from which is extremely small, as the adsorbing layer, the release sheet and the adsorbing layer having a proper release force.

Laminated sheet and method for producing the same

Provided are a self-adsorbable foamed laminate sheet having excellent weather resistance and causing no paste residue, and a composition for a self-adsorbable foamed sheet used to obtain the self-adsorbable foamed laminate sheet. A composition for a self-adsorbable foamed sheet comprises: a copolymer containing an unsaturated carboxylic acid monomer unit and having a solubility parameter (SP value) of 9.7 (cal/cm)or less and a glass-transition temperature of &#x2212;10&#xb0; C. or less; and a crosslinking agent.

Self-adsorbable foamed laminate sheet and composition for self-adsorbable foamed sheet

Provided is a method for producing a self-adhesive to be arranged on a package comprising a space to store contents and an opening by which the space and an outside communicate, wherein the opening is repeatedly openable and sealable by the self-adhesive that consists of a cross-linking material of a resin composition containing a (meth)acrylic acid ester copolymer resin having a glass transition temperature of &#x2212;22.8&#xb0; C. or more, and a crosslinking agent. The method comprises making the resin composition that contains the (meth)acrylic acid ester copolymer resin, and the crosslinking agent, the resin composition being either emulsion or dispersion; and cross-linking the resin composition.

Package, and methods for producing and for using self-adhesive

An optical multilayer film comprising a hard coat layer and a low refractive index layer comprising aerogel, which layers are laminated, in this order, directly or with another intervening layer on one surface of a base film comprising a transparent resin, wherein the refractive index nof the hard coat layer and the refractive index nof the low refractive index layer satisfy the following three formulae [1], [2] and [3],1.25&#x2266;&#x2266;1.37 Formula [1]&#x2267;1.53 Formula [2]()&#x2212;0.2&#x3c;&#x3c;()+0.2. Formula [3.]

Optical multilayer film, polarizing plate and optical product

An automatic three-dimensional structure shape generation apparatus for automatically generating the shape of a three-dimensional structure from a plurality of points having three-dimensional coordinates containing height information includes means for constituting a point group by collecting points such that three-dimensional distances between the points are within a predetermined threshold or two-dimensional distances and height differences between the points are within predetermined thresholds, means for detecting a polygon that includes the points of the point group at a minimum area from at least one of a plurality of predetermined polygons, and means for generating an outer shape or a rooftop shape of the three-dimensional structure from the polygon having the minimum area.

Automatic generating device for 3-d structure shape, automatic generating method, program therefor, and recording medium recording the program

A block copolymer comprising a polymer block [A] and a polymer block [B]. The polymer block [A] contains mainly a repeating unit having an alicyclic structure, and the polymer block [B] contains the repeating unit having an alicyclic structure and a repeating unit derived from a diene based monomer and/or a vinyl based monomer. In any block, the carbon-carbon unsaturated bonds are hydrogenated. The block copolymer is molded into optical disks, optical waveguides, films, sheets, containers, and optical lenses.

Growing community of inventors

Tokyo, Japan

Atsushi Sone