Provided is a foam sheet showing little change in dielectric constant even when exposed under a high-humidity condition. The foam sheet of the present invention includes: a foam layer; and a pressure-sensitive adhesive layer arranged on at least one side of the foam layer, wherein the foam sheet has a dielectric constant change amount [(YX)100]/X of 10(%) or less, where X (F/m) represents a dielectric constant of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 23 C. and a humidity of 50% for 2 hours, and Y (F/m) represents a dielectric constant of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 60 C. and a humidity of 95% for 24 hours.

An adhesive containing silicone, in the form of an adhesive compound which contains at least a first adhesive component and a second adhesive component containing silicone is provided. The second, silicon-laced adhesive component consists of a non-crosslinked polysiloxane. The kinematic viscosity of the non-crosslinked polysiloxane is at least 100,000 mm.sup.2/s and at most 10,000,000 mm.sup.2/s or that the molar mass of the non-crosslinked polysiloxane is less than 10,000 g/mol, and the second, silicone-containing adhesive component is microencapsulated. Alternatively it can be provided that the molar mass of the polysiloxane is at least 80,000 g/mol and at most 500,000 g/mol, or that the kinematic viscosity of the non-crosslinked polysiloxane is less than 100,000 mm.sup.2/s, and the second, silicone-containing adhesive component is microencapsulated.

An adhesive containing silicone, in the form of an adhesive compound which contains at least a first adhesive component and a second adhesive component containing silicone is provided. The second, silicon-laced adhesive component consists of a non-crosslinked polysiloxane. The kinematic viscosity of the non-crosslinked polysiloxane is at least 100,000 mm.sup.2/s and at most 10,000,000 mm.sup.2/s or that the molar mass of the non-crosslinked polysiloxane is less than 10,000 g/mol, and the second, silicone-containing adhesive component is microencapsulated. Alternatively it can be provided that the molar mass of the polysiloxane is at least 80,000 g/mol and at most 500,000 g/mol, or that the kinematic viscosity of the non-crosslinked polysiloxane is less than 100,000 mm.sup.2/s, and the second, silicone-containing adhesive component is microencapsulated.

Adhesive tapes include a plasticized polyvinyl chloride backing, a primer including an ethylene/carbon monoxide-containing terpolymer and a styrene-containing block copolymer, and an adhesive.

The present disclosure is directed to a foam tape product that does not require a release paper or other release material to prevent sticking on or within itself upon rolling. A method of manufacturing the foam tape product and kit are also provided.

Provided is a sticky cleaner whose adhesive face can be easily renewed and whish is less susceptible to roll-loosening. The sticky cleaner provided by this invention comprises a PSA tape having an adhesive face on the first face of a substrate. The PSA tape forms a PSA tape roll wound with the adhesive face on the outside. On the first face of the substrate, the PSA tape comprises a first layer formed of a PSA and a second layer formed of an acrylic viscoelastic material. The adhesive face comprises first sections where the first layer is exposed and second sections where the second layer is exposed. The second sections protrude further out of the PSA tape roll relative to the first sections. The PSA tape roll shows an unwinding force F.sub.0 at 0 C. and an unwinding force F.sub.30 at 30 C.

A multi-layer plastic film as a carrier film for a glue layer, comprising a layer sequence of (a) an outer layer (a) based on a mixture of ) 3-15 wt % of an extrudable glue and ) 85-97 wt % of at least one C.sub.2-C.sub.8 olefin-alkyl acrylate copolymer, C.sub.2-C.sub.8 olefin-methacrylic acid copolymer and/or C.sub.2-C.sub.8 alkyl methacrylate copolymer, wherein the mixture of ) and ) must be compatible with each other, (b) a layer (b) of at least one polyolefin or one olefin copolymer, (c) a layer (c) of at least one polyolefin or one olefin copolymer, and optionally typical auxiliary substances, as a second outer layer, and composites of said carrier film and an adhesive layer.

A moisture barrier material including a carrier, an adhesive layer formed on at least one surface of the carrier, and a release treated liner, wherein the moisture barrier material has a non-planar shape.

An absorbent member (20) includes an absorbent sheet (10) in which absorbent polymer (12) is fixed to a base sheet (11) and a cover sheet (21) covering at least a first surface of the absorbent sheet (10). The absorbent sheet (10) has an absorbent polymer fixing proportion of 40% or more. The absorbent member (20) has high fixing performance of the absorbent polymer (12) to the base sheet (11) and is less likely to suffer from detachment of the absorbent polymer (12) even after liquid absorption. The absorbent polymer (12) is preferably fixed to the base sheet (11) with a base sheet fixing adhesive (13) interposed therebetween. The adhesive (13) is preferably an acrylic, silicone-based or rubber-based adhesive, and is preferably a hot-melt adhesive.

A fastening system having at least of an application agent which, when viewed in relation to a surface to which it is applied, forms a smooth adhesion surface, in particular, after curing, and a functional part which, on its side facing the adhesion surface, has a functional surface which can be secured to the adhesion surface in a releasable manner.