1893results about "Film/foil adhesive release liners" patented technology

The invention provides a marking method in which marking is performed on a protective film formed on a work with a high accuracy while suppressing a warpage and, also, a sheet for both protective film forming and dicing which is advantageously used in the method. The marking method comprises irradiating laser light to a laminated structure comprising a support film tensely supported by a ring frame, a protective film releasably laminated on the support film and a work fixed to the protective film, wherein the protective film is irradiated laser light from a side of the support film, to thereby mark the protective film.

A dicing sheet with a protective film forming layer has a substrate film, an adhesive layer, and a protective film forming layer, and at a minimum, the adhesive layer is formed in an area surrounding the protective film forming layer in a planar view, and the substrate film has the following characteristics (a)-(c): (a) the melting point either exceeds 130° C. or the film has no melting point; (b) the thermal contraction rate under conditions of heating at 130° C. for two hours is from −5 to +5%, and (c) the degree of elongation-to-break in the MD direction and the CD direction is at least 100%, and the stress at 25% is no more than 100 MPa.

The present invention comprises methods for making and using antimicrobial laminate constructs comprising an antimicrobial layer and optionally, an adhesive layer. The present invention comprises methods for making medical devices, surfaces that may be in contact with medical equipment, personnel or patients, or treatment areas antimicrobial comprising, for example, applying an antimicrobial laminate construct.

A release liner for use with face stocks for pressure sensitive labels, tapes, decals and other products formed from sheet and roll stock. A filled polymer is laminated to one side of a paper web. An extrudate is laminated to the other side of the paper substrate to form a release liner. The filled polymer has paper-like properties and replaces paper tissue back liners.

A solventless cured release coating-forming organopolysiloxane composition having a viscosity at 25° C. of 50 to 2,000 mPa·s comprising (A) 100 weight parts of an alkenyl-functional diorganopolysiloxane that has a viscosity of 25 to 1,000 mPa·s; (B) 0.5 to 15 weight parts of a diorganopolysiloxane that has a viscosity of at least 10,000 mPa·s and that has an aliphatically unsaturated group content of no more than 0.1 mole %; (C) 0.5 to 5 weight parts of a branched organopolysiloxane that has more than one SiO_4/2 unit and that is a polymer product provided by an equilibration polymerization between a branched organosiloxane oligomer represented by the average siloxane unit formula (1) (SiO_4/2)(R^aR^b₂SiO_1/2)_x(1) and a diorganosiloxane oligomer; (D) a specific amount of an organohydrogenpolysiloxane that has a viscosity of 1 to 1,000 mPa·s; and (E) a hydrosilylation reaction catalyst in a catalytic quantity.

Problem: To provide a silicone-based releasable adhesive composition that is capable of easily controlling peeling force of a releasable adhesive layer by the composition, and whereby the silicone-based releasable adhesive composition has excellent attachment characteristics and releasability characteristics. A further object is to provide a sheet-form substrate and a releasable adhesive sheet that have a releasable adhesive layer formed by curing this composition.

Resolution Means: The silicone-based releasable adhesive composition includes an organopolysiloxane resin-organopolysiloxane condensation reaction product obtained by condensation reaction between (a1) 100 weight parts of an MQ type organopolysiloxane resin containing hydroxyl groups or alkoxy groups in a range of 0.3 to 2.0 weight % and having an M unit to Q unit molar ratio of 0.6 to 1.0, and (a2) 20 to 150 weight parts of a chain-like diorganopolysiloxane having an average degree of polymerization of 100 to 1,000 and having at least one hydroxyl group or alkoxy group, wherein the organopolysiloxane resin-organopolysiloxane condensation reaction product preferably includes a certain hydroxyl group content.

The present invention relates to a pressure sensitive adhesive composition. The present invention may effectively provide a pressure sensitive adhesive where peel forces for both sides are different and an modulus differs along the thickness direction. By applying the pressure sensitive adhesive as above, the present invention may provide, for example, an optical element, such as a polarizing plate, which can effectively inhibit light leakage and shows excellent durability, while being formed to have a thin thickness as well.

An exemplary moisture barrier membrane 10 comprises a waterproof adhesive layer, (14) a carrier support, (12) and a release liner (16) composite having a paper sheet, (20) cutting strings, (22) a polyolefin (24) coating or film for holding the strings against the paper and apart from the waterproof adhesive layer, and a release agent (26) such as silicone or wax over the polyolefin coating or film. This construction allows for relatively thin paper and strings to be used, such that tear resistance is conferred upon the release liner composite as a whole.

Disclosed is a double-coated pressure-sensitive adhesive tape which has a small total thickness, includes a foam layer, and excels in removability. The double-coated pressure-sensitive adhesive tape has a total thickness of 500 μm or less and includes a foam layer; a reinforcing layer; and two surface pressure-sensitive adhesive layers, in which at least one of the two surface pressure-sensitive adhesive layers is formed from a pressure-sensitive adhesive composition containing an acrylic polymer, a tackifier resin, and a crosslinking agent, the acrylic polymer including, as an essential monomer component, an alkyl(meth)acrylate whose alkyl moiety being a linear or branched-chain alkyl group having 4 to 9 carbon atoms.

The present invention is directed to a linerless label that utilizes a starch or starch ester based coating as a release coating. The release coating of the linerless label can be used to provide textural or aesthetic characteristics to the label in various patterns or arrangements as may be selected by the end user or manufacturer of the product.

The present invention provided is the temporary adhesive for wafer processing which temporarily bonds a wafer having a circuit face on the front surface and a processing face on the back surface to a support, and includes a first temporary adhesive layer which is a layer (A) of a thermoplastic resin modified organopolysiloxane obtained by partial dehydration condensation of an organopolysiloxane resin containing a R²¹R²²R²³SiO_1/2, and a SiO_4/2 unit in a molar ratio of R²¹R²²R²³SiO_1/2 unit/SiO_4/2 unit of 0.6 to 1.7 and an organopolysiloxane represented by the following general formula (1), and a second temporary adhesive layer which is a thermosetting modified siloxane polymer layer (B) which is laminated on the first temporary adhesive layer and is releasably bonded to the support.

An anti-curling reinforcement device can be applied to corners of a rug, such as an area rug, to prevent the corners from curling. By adhering to the underside of the rug, and not the floor, the anti-curling reinforcement device does not damage the floor as may occur with double-sided carpet tape. The device utilizes a specially designed shape and structure that straightens and reinforces the corner to prevent further curling and possible damage to the rug. The device straightens, reinforces and adds weight to the rug corner to prevent curling, keeping the corner flat, and preventing possible damage to the rug as well as minimizing tripping hazards from curled corners.

An easily peelable laminated film includes a laminate of a peelable surface layer (B) having a peeling strength of 5 to 100 g/cm with a base layer (A) containing a thermoplastic resin. The laminated film of the invention provides an easily peelable laminated film excellent in water resistance as a base materialfor, for example, concealing seals and labels for preventing re-pasting. The easily peelable laminated film of the invention requires no specific process to start peeling.

A wafer processing tape includes a release film having a large length; an adhesive layer formed on a first surface of the release film and having a predetermined planar shape; a pressure-sensitive adhesive film having a label portion and a surrounding portion surrounding outside the label portion; and a support member formed on a second surface of the release film opposite to the first surface on which the adhesive layer and the pressure-sensitive adhesive film are formed. The label portion has a predetermined planar shape and covers the adhesive layer so that the label portion contacts with the release film around the adhesive layer. The support member is disposed at both end portions of the release film in a short side direction of the release film. The support member has a coefficient of linear expansion of 300 ppm/° C. or less.

Provided is a novel transparent adhesive sheet with which the cut edge is not sticky over time when a laminated body that has been bonded via the adhesive sheet is cut, which can be adhered without generating residual air bubbles, even when the surface of an adherend is uneven, and which can be adhered without foaming, even when the adherend is a material such as plastic that can generate outgas. Suggested is an adhesive sheet that has one or more layers of a first adhesive layer and one or more layer of a second adhesive layer that exhibit different viscoelastic behaviors, and has an integrated structure whereby these layers are laminated, with a dynamic shear storage modulus G′ of 2×10⁴ to 5×10⁵ Pa for G′(20° C.) and 1×10⁴ to 1×10⁵ Pa for G′(150° C.) when measured with a 1 Hz frequency temperature dispersion.

The invention provides an adhesive composition and a surface-protective adhesive film, which have excellent electrical resistance and excellent adhesive balance, durability and rework performance during peeling in high speed and low speed. The adhesive composition contains (A) acrylate monomer (methyl) containing alkyl carbons of C4-C10, (B) comonomer containing hydroxyl, (C) comonomer containing carboxyl and (D) acrylic polymer of copolymer of poly alkylene glycol single (meth) acrylate monomer. The adhesive composition further contains (E) over three-functional isocyanate compound, (F) crosslinking inhibitor, (G) Crosslinking catalyst, (H) antistatic agent and (I) polyether modified siloxane compound, wherein the acid value of the acrylic polymer ranges from 0.01-8.0.

There is provided an adhesive sheet comprising an adhesive base sheet, an adhesive layer, and a release sheet laminated in sequence from the adhesive base sheet. The release sheet comprises a release agent layer and a release base material laminated in sequence from the adhesive layer. A release force between the release sheet and the adhesive layer is decreased by an external stimulus.