The current disclosure describes carrier tape systems that include a carrier tape substrate and a cover tape. The carrier tape system includes a plurality of repetitive adhesion areas where the carrier tape substrate and cover tape are attached to each other and non-adhesion areas where the carrier tape substrate and cover tape are not attached to each other. Separating the cover tape and the carrier tape substrate at these repetitive adhesion and non-adhesion areas imparts a vibration to the cover tape which impedes or prevents semiconductor devices carried in pockets of the carrier tape substrate from adhering to adhesive on the cover tape.

The current disclosure describes carrier tape systems that include a carrier tape substrate and a cover tape. The carrier tape system includes a plurality of repetitive adhesion areas where the carrier tape substrate and cover tape are attached to each other and non-adhesion areas where the carrier tape substrate and cover tape are not attached to each other. Separating the cover tape and the carrier tape substrate at these repetitive adhesion and non-adhesion areas imparts a vibration to the cover tape which impedes or prevents semiconductor devices carried in pockets of the carrier tape substrate from adhering to adhesive on the cover tape.

The invention relates to an adhesive tape with a carrier composed of a film, there being applied on one side of the carrier an adhesive based on natural rubber or synthetic rubber, where the film is a biaxially oriented film made of polypropylene, polyethylene or polyester such as PET, and on the side of the carrier not coated with adhesive there is a release layer, based in particular on carbamate.

A method of making an adhesive article comprises three steps. First, a backing is provided having first and second opposed major surfaces with respective first and second silicone release layers disposed thereon. The second silicone release layer further comprises organic solvent and a compound represented by the formula: R.sup.1 represents a monovalent, divalent, or trivalent hydrocarbon radical having from 2 to 40 carbon atoms or covalent bond. R.sub.f represents a perfluorinated group having from 3 to 5 carbon atoms. X.sup.1 represents NH or a covalent bond. Second, an adhesive layer is disposed onto the first silicone release layer. Third, the adhesive layer is exposed to E-beam radiation within a process chamber containing oxygen to provide a crosslinked adhesive layer. An adhesive article made by the method and the compound are also disclosed. ##STR00001##

A method of making an adhesive article comprises three steps. First, a backing is provided having first and second opposed major surfaces with respective first and second silicone release layers disposed thereon. The second silicone release layer further comprises a compound represented by the formula: R.sup.1 represents a divalent hydrocarbon radical having from 2 to 40 carbon atoms or covalent bond. R.sup.2 represents a monovalent or divalent poly(dimethylsiloxane) moiety. X represents NH or a covalent bond. R.sub.f represents a perfluorinated group having from 3 to 5 carbon atoms. y is 1 or 2. Second, an adhesive layer is disposed onto the first silicone release layer. Third, the adhesive layer is exposed to E-beam radiation within a process chamber containing oxygen to provide a crosslinked adhesive layer. An adhesive article made by the method and the compound are also disclosed. ##STR00001##

An adhesive article includes a pressure-sensitive adhesive layer with a release liner releasably adhered thereto. The release liner comprises a thermoplastic polymer and a first release agent represented by the formula: Each R.sup.1 represents a hydrocarbylene group having from 2 to 40 carbon atoms; each R.sub.f independently represents a perfluorinated alkyl group of having 3 to 5 carbon atoms; and each X.sup.1 is NH or a covalent bond. Methods of making the adhesive articles are also disclosed. ##STR00001##

An optical clear adhesive (OCA) and a manufacturing method thereof are provided. The OCA is a three-layer laminated structure including an OCA transparent film, a high release film coated on a lower surface of the OCA transparent film and a light release film coated on an upper surface of the OCA transparent. The high release film and the light release film contain 0.01 to 3 wt % of UV absorber. After UV light irradiation, the OCA transparent film has a suitable peeling force between the light release film and the high release film.

A blend suitable for use in a release layer of a multilayer protective film. The blends comprise greater than 50 wt. % of an ethylene/alpha-olefin copolymer, a functionalized ethylene-based polymer, and an inorganic filler.

The disclosure relates to articles comprising a substrate, a pressure sensitive adhesive, and a release layer, wherein the release layer comprises at least one silicone carbonate polymer.

Embodiments provide a pressure-sensitive adhesive film having () a poly(meth)acrylimide-based resin film layer and () a pressure-sensitive adhesive agent layer in that order from the surface layer side and having a total light transmittance of 80% or higher. The pressure-sensitive adhesive film may further have () a hard coat layer on the surface layer side of the poly(meth)acrylimide-based resin film layer (). This hard coat layer () may comprise an active energy ray-curable resin composition that contains (A) 100 parts by mass of a polyfunctional (meth)acrylate; (B) 0.2-4 parts by mass of a compound having an alkoxysilyl group and a (meth)acryloyl group; (C) 0.05-3 parts by mass of organic titanium; and (D) 5-100 parts by mass of fine particles having an average particle diameter of 1-300 nm. This active energy ray-curable resin composition may further contain (E) 0.01-7 parts by mass of a water-repelling agent.