Abstract:
Provided is a water-dispersed pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive that exhibits good adhesiveness to a non-polar adherend and maintains its properties at a low temperature. The water-dispersed pressure-sensitive adhesive composition according to the present invention comprises a (meth)acrylic polymer obtained by polymerizing a monomer composition containing as a primary component an alkyl (meth)acrylate having an alkyl group with 1 to 18 carbon atoms, a latex containing a rubber component that is immiscible with the (meth)acrylic polymer and has a loss tangent peak temperature of −5° C. or below when determined by a dynamic viscoelastic measurement in which shear strain is applied at a frequency of 1 Hz, and a tackifier that is miscible with the rubber component, but immiscible with the (meth)acrylic polymer.
Abstract:
An aqueous dispersion type oil-resistant pressure-sensitive adhesive composition contains an aqueous dispersion polymer and inorganic particles. The content ratio of the inorganic particles with respect to 100 parts by mass of the aqueous dispersion polymer is 3 to 90 parts by mass.
Abstract:
A semiconductor device bonded by an anisotropic conductive film, the anisotropic conductive film including a conductive adhesive layer and an insulating adhesive layer stacked thereon, an amount of reactive monomers in the conductive adhesive layer being higher than an amount of reactive monomers in the insulating adhesive layer.
Abstract:
A protective film that can be applied using a wet or dry application process. The protective film may be part of a protective film application kit that also includes a package and, optionally, liquid, installation tabs, and a squeegee.
Abstract:
The present invention is directed to providing a pressure-sensitive adhesive with good initial tack and good adhesion at low temperature. Generally, the pressure-sensitive adhesive composition comprises (1) a carboxylic group-containing (meth)acrylic tacky polymer having a weight average molecular weight of less than 800,000 and a glass transition temperature of −100° C. to −30° C., and (2) an amino group-containing (meth)acrylic non-tacky polymer having a weight average molecular weight of from 30,000 to 100,000 and a glass transition temperature of 20° C. to 90° C. The amino group-containing (meth)acrylic non-tacky polymer (2) is present in an amount of no less than 1 parts by mass and less than 20 parts by mass on a basis of 100 parts by mass of said carboxylic group-containing (meth)acrylic tacky polymer (1).
Abstract:
Provided is a roll body of a band-like patch that can be held in a roll-like form without causing deviated rolling or unrolling, and can allow simple pulling out of a patch without causing stickiness on a person's hand or fingers when being pulled out. In the roll body of a band-like patch formed by rolling a band-like patch including a cloth support, a pressure-sensitive adhesive layer, and a release liner laminated in this order, at least one temporary attachment region in which a temporary attachment layer is formed and at least one grip region in which no temporary attachment layer is formed are provided at an interface between a back face of the cloth support and a back face of the release liner.
Abstract:
There is provided a polyester elastomer which is excellent in compression set characteristics and has a micro cell structure.The polyester elastomer foam is formed by allowing a polyester elastomer composition containing a polyester elastomer having a melting point of 180 to 240° C. and an epoxy-modified polymer to expand. The epoxy-modified polymer is an epoxy-modified polymer having a weight average molecular weight of 5,000 to 100,000 and an epoxy equivalent of 100 to 3000 g/eq.
Abstract:
An adhesive label includes a polymeric first film layer that has a high tensile modulus. The label is useful in various labeling applications and especially in adhesive labeling of reusable and recyclable containers which require removal of the label during a washing process in a warm or hot washing fluid.
Abstract:
Provided are a transparent film of an excellent visual quality and a pressure-sensitive adhesive film including the transparent film. Transparent film includes base layer formed of transparent resinous material and top coat layer provided on its first face. Top coat layer has an average thickness Dave of 2 nm to 50 nm and the thickness deviation ΔD is 40% or smaller of the average thickness Dave.
Abstract:
A transparent film, the back-face of which has excellent resistance to scratch and printability, and a surface protection film which has such a transparent film are provided. A transparent film 10 has a substrate layer 12 formed of a transparent resin material, and a back-face layer 14 with a thickness of 1 μm or less provided on a first face 12A thereof. A percent change in coefficient of friction Δμ is less than 10% for the transparent film 10 when the percent change is determined from a coefficient of friction μ50 of the back-face layer after being conserved at 50° C. and 15% RH for three days and a coefficient of friction μ80 of the back-face layer after being conserved at 80° C. and 80% RH for three days, with an absolute value of difference between the two coefficients of friction |μ80−μ50| being divided by the smaller value of the two coefficients of friction.