An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

The invention relates to the use of an adhesive composition comprising at least one silyl-containing polymer, at least one compatible tackifying resin and at least one catalyst, to make a breathable self-adhesive article. The invention also relates to a breathable self-adhesive article comprising at least one breathable substrate coated with a breathable adhesive layer. The invention also relates to a pressure-sensitive adhesive composition.

Adhesive articles that include a substrate and a silicone adhesive are disclosed. The articles also include a polymer containing poly(propylene oxide) units and optionally poly(ethylene oxide) units and having a number average molecular weight of at least 1000 grams per mole. The polymer may either be incorporated into the substrate or may be used as a primer on the substrate. If the polymer includes poly(ethylene oxide) units, the copolymer typically has a weight ratio of poly(ethylene oxide) to poly(propylene oxide) of up to 3:1, or if the copolymer has a number average molecular weight of at least 10,000 grams per mole, the weight ratio of poly(ethylene oxide) to poly(propylene oxide) is up to 2:1. Methods of making the adhesive articles are also disclosed.

A method for producing a pressure-sensitive adhesive layer-carrying optical film includes the step of applying, over the optical film, a coating liquid for anchor layer comprising a mixed solvent comprising 10 to 100% by weight of water and 90 to 0% by weight of an alcohol, and a polyoxyalkylene-group-containing polymer so as to give an applied-coat thickness before drying of 20 m or less; and next drying the workpiece under drying conditions satisfying both of the following requirements (1) and (2): (1) the drying temperature T is from 40 to 70 C., and (2) a value obtained by multiplying the drying temperature T ( C.) by the drying period H (seconds), TH, satisfies:
400(TH)4000,
thereby removing the mixed solvent to form the anchor layer.

An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.

The present invention provides an adhesive composition excellent in adhesive strength. The adhesive composition of the present invention contains 100 parts by weight of polyalkylene oxide having a hydrolyzable silyl group, 1 to 20 parts by weight of an epoxy resin, 0.1 to 10 parts by weight of an epoxysilane coupling agent, 0.5 to 20 parts by weight of a ketimine compound, and 1 to 100 parts by weight of fatty acid-treated calcium oxide.

The present invention provides specific alkoxylation products, a process for preparing them, compositions which comprise these alkoxylation products, and the use thereof.