B29K2633/08

METHOD OF PRODUCING LAMINATED STRUCTURE
20190084283 · 2019-03-21 ·

A method of producing a laminated structure includes: a laminated structure that has high adhesion strength between resin layers and that is excellent in respect of working efficiency, the method including: a lamination step of preparing an intermediate laminate in which a first resin layer and a second resin layer are laminated with an adhesive resin layer interposed between the first resin layer and the second resin layer; a first molding step of molding the intermediate laminate; and a second molding step of forming a resin member on a surface of the molded intermediate laminate by injection molding using a raw material resin to obtain a laminated structure in which at least a part of the adhesive resin layer is thermally cured to be an adhesion layer. An adhesive resin composition constituting the adhesive resin layer contains at least an acrylic-based polymer, a crosslinking agent, and a thermal polymerization initiator.

Method and device for manufacturing artificial marble having stripe pattern

The present invention relates to a method and device for manufacturing artificial marble. According to the present invention, artificial marble having a stripe pattern similar to that of natural stone, such as striato, may be provided.

COATING AGENT AND FILMS HAVING INCREASED MECHANICAL AND CHEMICAL RESISTANCE AND SUFFICIENT DEFORMABILITY IN 2-D FILM INSERT MOLDING METHODS

A coating agent and films coated with it are provided, of which the coating comprises an enhanced mechanical and chemical resistance and a formability adequate for 2-D-film-insert molding processes. The coating agent, comprising (a) at least one thermoplastic polymer with a proportion of at least 30% by weight of the solid content of the coating agent; (b) at least one UV hardenable reactive thinner with a proportion of at least 30% by weight of the solid content of the coating agent; (c) at least one photo-initiator; and (d) at least one organic solvent, wherein the proportion of ethylenically unsaturated groups amounts to at least 3 mol per kg of the solid content of the coating agent, wherein the at least one reactive thinner comprises at least three polymerisable (meth)acrylate functions in the molecule and wherein the ester-oxygen atoms of the (meth)acrylate functions in the molecule of the reactive thinner are separated from one another by a chain of at least six atoms.

METHOD FOR PRODUCING OPTICAL FILM, AND OPTICAL FILM
20180022014 · 2018-01-25 · ·

A method for producing an optical film includes forming a stretched film by stretching a thermoplastic resin composition comprising a thermoplastic resin and rubber particles at a stretching temperature; and heating the stretched film at a heat treatment temperature while applying a tensile force in a stretching direction of the stretched film. The stretched film is a biaxially stretched film. The stretching temperature is from Tg to (Tg+20 C.), provided that Tg is a glass transition temperature of the stretched film. The heating reduces a size of the stretched film in the stretching direction by simultaneously decreasing a longitudinal size and a width size of the stretched film, and the heat treatment temperature is from (Tg+10 C.) to (Tg+23 C.)

Method for making embedded hydrogel contact lenses

The invention relates to a method for producing embedded hydrogel contact lenses each having a magnetized insert that comprises magnetic particles and is centrally embedded in the bulk hydrogel material of the embedded hydrogel contact lens. During molding, a magnetized insert can be centered and held in position in a lens mold by using a magnet placed below the lens mold. The invention also relates to an embedded hydrogel contact lens produced from a method of the invention.

Embedded hydrogel contact lenses

The invention relates to a method for producing embedded hydrogel contact lenses involving a set of 3-mold halves consisting essentially of: one female lens mold half having a molding surface defining the anterior surface of a contact lens; one male lens mold half having a molding surface defining the posterior surface of the contact lens; and an insert mold half having a molding surface defining one of the front and back surfaces of an insert. One of the lens mold halves is used twice: first with the insert mold half for molding an insert during first curing process and then with the other lens mold half for molding an embedded hydrogel contact lens with the molded insert embedded partially or fully therein during second curing process. The invention also relates to embedded hydrogel contact lenses produced from a method of the invention.

Polarizing plate comprising an optical film including an alignment layer, an anisotropic layer, and an isotropic acrylic polymer layer and method for producing the same
09671539 · 2017-06-06 · ·

The present invention provides a polarizing plate that includes a polarizer, and an optical film including an alignment layer, an optically anisotropic layer, and an optically isotropic acrylic polymer layer on at least one surface of the polarizer, in which the optically anisotropic layer is a layer formed by irradiating a polymerizable composition including a liquid crystal compound that is directly applied to the alignment layer with light to polymerize the liquid crystal compound, the acrylic polymer layer is a layer formed by curing a polymerizable composition including (meth)acrylate that is directly applied to a surface of the layer formed from the polymerizable composition including a liquid crystal compound, and the thickness of the acrylic polymer layer is larger than the thickness of the optically anisotropic layer. According to the present invention, it is possible to provide a polarizing plate having a small thickness.