There are provided rolls comprising an air and water barrier article having opposing first and second major surfaces, a pressure sensitive adhesive disposed on at least the first major surface of the article, and a liner having a first major surface that contacts the opposing second major surface of the article, and at least two adhesion modifying zones disposed between the second major surface of the article and the first major surface of the liner, wherein both of a first and second adhesion modifying zones contact the first major surface of the liner, and wherein the pressure sensitive adhesive contacts a second major surface of the liner when wound in the roll. There are also provided films made using these air and water barrier articles and building envelopes made using such films.

Provided is a sealant sheet that shows reduced elongation during application to a target object. A laminate comprising a sealant sheet is provided. The laminate has a support layer satisfying the formula (1): E′×t≥1×10.sup.4 (N/m). In the formula (1), E′ is the support layer's modulus (MPa) and t is the support layer's thickness (μm).

A wrappable protective sleeve for providing protection to at least one elongate member contained therein and methods of construction and use thereof are provided. The sleeve includes a flexible textile wall having opposite inner and outer faces bounded by opposite edges and opposite ends. The opposite edges extend generally parallel to one another between the opposite ends. A pair of adhesive layers is bonded to the inner face, with each of the adhesive layers being spaced from one another. The adhesive layers extend between the opposite ends adjacent the opposite edges. Further, a release paper is releasably adhered to the pair of adhesive layers for subsequent removal and use of the sleeve.

To provide a half-cut double-sided tape from a double-sided tape with a release-liner commercially available in the market by means of a simple process without contacting a cutter blade directly to an adhesive layer when making the half cuts in the half-cut process. The invention includes: a processing protection layer formation step of feeding a protect release paper tape having the release surface to the double-sided tape to form a processing protection layer on the double-sided tape with the release liner; a half-cut step of continuously performing half-cut together with the processing protection layer and the double-sided tape on the release liner while leaving only the release liner, and making a number of the double-sided tape pieces of proper length are held on the release liner; a half-cut double-sided tape winding step of winding the half-cut double-sided tape with the release liner while peeling off the processing protection layer. A cut trace has a fully cut region in the width direction of the double-sided tape on the release liner and a non-cut region in the width direction of the protect release paper tape, so that the peeling is facilitated.

The disclosure provides a micro-groove drag reduction flexible film and a preparation method thereof. The micro-groove film has a triangular groove structure on the upper surface along the direction of an air flow, and an adhesive layer on the lower surface for quick adhesion to an aircraft surface. After the surface of the aircraft is covered with a micro-groove film, it could limit the spanwise movement of the bottom air at the boundary layer of the aircraft surface, improve the flow field characteristics of the aircraft near the wall, and effectively reduce the frictional resistance of the wall. The micro-groove flexible film is prepared by a roller hot pressing method. The triangular groove structure is processed on the surface of the mold roller of the double roller hot press. After pretreatment of the thermoplastic polyurethane (TPU) polymer film, a micro-groove structure is hot-pressed on the surface of the TPU film.

Provided is an outdoor facing system and method is for re-facing an object. The outdoor re-facing system includes a plasticized facing layer, the facing layer having an exterior surface. The outdoor re-facing system includes an interior surface and an adhesive layer comprising a pressure-sensitive adhesive resistant to plasticizer migration, the adhesive layer having a first surface attached to the interior surface of the facing layer and a second surface for adhering the re-facing system to the re-facing object.

In the present invention, compounding an addition-reaction-curable organopolysiloxane composition with a specific amount of an organopolysiloxane compound that has three or more (meth)acryl groups in the molecule and a weight-average molecular weight of 1,000 or greater yields an organopolysiloxane composition for use in a release paper or release film in which addition reactions can occur using a small amount of platinum family metal catalyst, cured films can be formed having a peeling strength approximating levels encountered in the past, and addition-reaction-prompted curing will proceed even on a base material containing a catalyst-poisoning component.

The present invention provides a silicone release agent composition comprising the components (A), (B), (C) and (D): 50 to 99.9 parts by mass of (A) linear or branched organopolysiloxane represented by the general formula (1) and having at least two alkenyl group-containing organic groups and at least one aryl group-containing organic group in one molecule and having no fluorine-containing organic group, wherein a percentage of the number of the alkenyl group-containing organic group is 0.005 to 5% and a percentage of the number of the aryl group-containing organic groups is 0.1 to 40%, each based on the total number of groups each bonded to a silicon atom; 50 to 0.1 part by mass of (B) linear or branched organopolysiloxane having at least one alkenyl group-containing organic group and at least one fluorine-containing organic group in one molecule, wherein a percentage of the number of the fluorine-containing organic group is 3% to 50%, based on the total number of groups each bonded to a silicon atom, provided that the total amount of components (A) and (B) is 100 parts by mass; (C) organohydrogenpolysiloxane having three or more hydrogen atoms each bonded to a silicon atom in one molecule and having no fluorine-containing organic group, in such an amount that a ratio of the number of the SiH group in component (C) to the total number of the alkenyl group in components (A) and (B) is from 0.5 to 15; and a catalytic amount of (D) platinum group metal catalyst, provided that the silicone release agent composition does not comprise (E) organohydrogenpolysiloxane having one or more hydrogen atoms each bonded to a silicon atom and having a fluorine-containing organic group.

There is provided a vinyl alcohol-based polymer having an ethylenic double bond with a saponification degree of 70 mol % or more, wherein the vinyl alcohol-based polymer is water-soluble; a molar ratio of the ethylenic double bond to the total of vinyl alcohol units and vinyl acetate units is 0.05/100 to 2/100; and a limiting viscosity [η] and a weight-average molecular weight Mw of a vinyl ester-based polymer which is produced by esterifying the vinyl alcohol-based polymer satisfy the following formulas (1) and (2).

4.7≦log Mw 6.3   (1)

0.60<(log [η]+3.75)/log Mw<0.69   (2)

The present invention provides a photocurable adhesive composition. The photocurable adhesive composition comprises, based on the total solid content thereof, 10 to 40 wt % of a thermoplastic polymer containing carboxylic groups and epoxy groups, 20 to 50 wt % of an epoxy component, 1 to 10 wt % of a hydroxy-containing compound, and 0.1 to 5 wt % of a photoinitiator. The present invention further provides a photocurable adhesive tape comprising the photocurable adhesive composition. The photocurable adhesive composition and the photocurable adhesive tape prepared according to technical solutions of the present invention have excellent adhesiveness to phosphorus-containing nickel-plated substrates.