C09J2301/122

PRESSURE-SENSITIVE ADHESIVE SHEET FOR SEMICONDUCTOR WAFER PROCESSING
20220403214 · 2022-12-22 ·

Provided is a pressure-sensitive adhesive sheet for semiconductor wafer processing that is excellent in adhesiveness with a semiconductor wafer, and that has light peelability and suppresses adhesive residue. The pressure-sensitive adhesive sheet for semiconductor wafer processing includes in this order: a base material; an intermediate layer; and a UV-curable pressure-sensitive adhesive layer. The intermediate layer has a storage modulus of elasticity at room temperature, G′1.sub.RT, of from 300 kPa to 2,000 kPa, and a storage modulus of elasticity at 80° C., G′1.sub.80, of from 10 kPa to 500 kPa. The UV-curable pressure-sensitive adhesive layer has a storage modulus of elasticity at room temperature, G′2.sub.RT, of from 100 kPa to 1,000 kPa, and a storage modulus of elasticity at 80° C., G′2.sub.80, of from 10 kPa to 1,000 kPa. G′1.sub.RT/G′2.sub.RT is 1 or more.

TRANSPARENT, ANTI-FOG TAPE OR FILM AND RELATED DEVICES AND METHODS
20220403220 · 2022-12-22 ·

The present disclosure generally relates to a stretchable anti-fogging tape (SAT) that can be applied to diverse transparent materials with varied curvatures for persistent fogging prevention. The SAT comprises three synergistically-combined transparent layers: i) a stretchable middle layer with high elastic recovery to keep transparent materials tightly bound; ii) an anti-fogging top layer to impart hydrophilicity to transparent materials; and iii) an adhesive bottom layer to form robust yet reversible adhesion between transparent materials and SATs. The SAT can be configured to have water condensate form a predominantly continuous film thereon in response to a high humidity environment At least two applications are demonstrated, including the SAT-adhered eyeglasses and goggles for clear fog-free vision, and the SAT-adhered condensation cover for efficient solar-powered freshwater production.

ADHESIVE MEDICAL ARTICLE HAVING FLUID MANAGEMENT PROPERTIES

The disclosed adhesive medical article has a backing layer having a first major surface and a second major surface opposite to the first major surface. The backing layer has a central portion and an outer circumferential portion. The article further has a pressure sensitive adhesive pattern coating applied onto at least part of the first major surface of the backing layer in such a way as to form a plurality of adhesive coated and adhesive uncoated areas of the backing layer. The adhesive uncoated areas comprise a central collection portion and at least one longitudinal extension radiating from the central collection portion towards the outer circumferential portion of the backing layer.

TEMPORARY VEHICLE PROTECTION FILM WRAP WITH REVERSE ADHESIVE
20220396718 · 2022-12-15 ·

The adhesive faces outwardly in a temporary vehicle wrapping film, dramatically improving the process of application. The film may be a durable 3-mil, puncture-resistant plastic film with a UV inhibitor, and the adhesive may be a reduced-tack or “low-tack” adhesive. The base layer and the adhesive are preferably transparent or translucent, and the width of the roll may be in the range of 1 to several feet. A portion of the outwardly facing adhesive is applied to a surface to be protected, enabling the film to be unrolled with the outwardly facing adhesive surface at all times being applied to the surface. The film is cut when the surface to be protected is sufficiently covered. In contrast to existing solutions, the film may be applied by a single user, with one hand grasping one end of the roll and the other hand grasping the other end of the roll.

AN ACOUSTIC DAMPING MATERIAL COMPRISING RENEWABLE RAW MATERIALS

An acoustic damping material includes a binder matrix which includes a bitumen component or a polymer component, and a filler component that includes at least one solid particulate cellulose-containing filler. The acoustic damping material is suitable for use in damping of undesired vibrations and noise in mechanical structures and components of manufactured articles. The acoustic damping material may be applied to damping of vibrations and noise in transportation vehicles and white goods, to a vibration and noise damping element including a damping layer composed of the acoustic damping material, to a method for applying a vibration and noise damping element to a noise emitting surface of a substrate, and to a vibration damped system comprising a substrate and the vibration and noise damping element bonded to a noise emitting surface of the substrate.

Adhesive Composition for Decorative Film
20220372350 · 2022-11-24 ·

One embodiment of the present invention relates to an adhesive composition for a decorative film, a decorative film, or a decorative molded body. The adhesive composition for a decorative film contains a (meth)acrylic polymer (A) that satisfies (I) and (II) below, has a weight-average molecular weight of 300,000 or less as measured by gel permeation chromatography, and has a glass transition temperature of higher than 0° C. and lower than 50° C. as determined from a peak temperature of tan δ measured by dynamic mechanical analysis. Relative to a total of 100 mass % of the (meth)acrylic polymer (A) and a (meth)acrylic polymer (Ah) having a glass transition temperature of 50° C. or higher, a percentage content of the (meth)acrylic polymer (Ah) is less than 25 mass %. (I) The (meth)acrylic polymer (A) is a polymer of a monomer component that contains 19 mass % or more of a monomer (a1) that does not have a crosslinkable functional group. (II) A homopolymer of the monomer (a1) has a glass transition temperature of 0° C. or higher.

LAMINATE AND HOT MELT-TYPE ADHESIVE LABEL
20220372338 · 2022-11-24 · ·

Provided is a laminate and a hot melt-type adhesive label that suppress curling due to swelling while having a pulp-paper feel. The laminate includes a porous substrate layer and an adhesive resin receiving layer on one side of the porous substrate layer, and the adhesive resin receiving layer contains an amorphous resin.

CROSSLINKED POLYOLEFIN RESIN FOAM, ADHESIVE TAPE, LAYERED BODY, MOLDING, AND DISPLAY MEMBER
20220372336 · 2022-11-24 · ·

A cross-linked polyolefin resin foam of the present invention has a total light transmittance and a thickness that satisfy a predetermined condition, and has a reflection color difference Δ* of −10 to 16, a reflection color difference Δa* of −3 to 3, and a reflection color difference ΔL* of 50 or more. According to the present invention, there can be provided a cross-linked polyolefin resin foam that can suppress a change in color tone of transmitted light while ensuring transparency, and a pressure-sensitive adhesive tape, layered product, formed product, and display member that include such a cross-linked polyolefin resin foam.

DOUBLE PASS PROCESS OF MAKING A SELF ADHERING ROOFING MEMBRANE WITH IMPROVED ADHESION AT LOWER INSTALLATION TEMPERATURE

A self-adhering roofing membrane may include a polymeric membrane. The roofing membrane may include a first adhesive layer disposed on a major surface of the polymeric membrane. The first adhesive layer may include one or both of a hot melt adhesive and a butyl rubber-based adhesive. The roofing membrane may include a UV curable adhesive layer disposed on the first adhesive layer. The UV curable adhesive layer may have a thickness of less than about 4 mils.

Battery packaging material, battery, and method for producing battery packaging material

A battery packaging material that is excellent in electrolytic solution resistance and ink printing characteristics of the surface. A battery packaging material comprising a laminate having at least a protective layer, a base material layer, a barrier layer, and a heat-sealable resin layer in this order, wherein a maximum value A of absorbance detected in an infrared wavenumber range of 2800 to 3000 cm.sup.−1 and a maximum value B of absorbance detected in an infrared wavenumber range of 2200 to 2300 cm.sup.−1 satisfy the relation: 0.05≤B/A≤0.75, as measured from an outermost surface of the protective layer, using attenuated total reflection Fourier transform infrared spectroscopy.