B32B2405/00

Air and water barrier article with porous layer and liner

There is provided an article that includes a polymeric layer disposed on and covering a first major surface of an porous layer, an adhesive layer disposed on a second major surface of the elastic layer opposite the polymeric layer; and a liner disposed on a major surface of the polymeric layer opposite the first major surface of the elastic layer. The polymeric layer and the porous layer together form an air and water barrier that is water vapor permeable. The liner is water vapor impermeable. In a preferred embodiment the polymeric layer comprises a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane. A method of applying the article to a surface of a building component is also provided.

Polyurethane film comprising graphene and preparation process thereof

A polyurethane film comprising a polyurethane resin and graphene, wherein the graphene is present in an amount of 1 to 30% by weight on the total weight of the film and consists of graphene nano-platelets, wherein at least 90% has a lateral dimension (x, y) of 50 to 50000 nm and a thickness (z) of 0.34 to 50 nm, wherein the lateral dimension is always greater than the thickness (x, y>z), wherein the C/O ratio is ≥100:1, and a preparation process thereof.

Decorative film and method for producing decorative molded body using same

This decorative film is to be bonded to a resin molded body by means of thermoforming, and comprises a sealing layer (I) that contains a polypropylene resin (A) and a layer (II) that contains a polypropylene resin (B). The polypropylene resin (A) satisfies the requirement (a1), while the polypropylene resin (B) satisfies the requirement (b1). (a1) The melt flow rate (MFR (A)) (at 230° C. under a load of 2.16 kg) is more than 0.5 g/10 minutes. (b1) The melt flow rate (MFR (B)) (at 230° C. under a load of 2.16 kg) and the MFR (A) satisfy relational expression (b-1). MFR (B)<MFR (A) (b-1).

Foam sheet

Provided is a foam sheet that can raise an electrostatic capacitance at the time of compression, and hence can improve sensitivity when used for an electrostatic capacitance sensor. The foam sheet 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 increase amount Q-P at 10% compression of 0.2 (F/m) or more, where P (F/m) represents a dielectric constant of the foam sheet 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 Q (F/m) represents a dielectric constant of the foam sheet at a time when the foam sheet is compressed by 10% immediately after being left at rest under the conditions of a temperature of 23° C. and a humidity of 50% for 2 hours.

Polyurethane foam and methods of forming the same

A polyurethane foam may include an isocyanate polymer component and a polyol component. The polyol component may include a polyol having a molecular weight of at least about 500 kg/mol and not greater than about 6000 kg/mol. The polyurethane foam may have an elongation of at least about 500%. The polyurethane foam may further have a density of at least about 250 g/L and a tensile strength of not greater than about 1000 kPa.

Stitch bonded foam tape product and method
11512230 · 2022-11-29 · ·

An adhesive tape product incorporating foam that is stitch-bonded with a stitching yarn to provide substantial dimensional stability in the machine direction without sacrificing the sound dampening and insulation properties of the foam. A pressure sensitive adhesive is disposed in overlying relation to at least one face of the foam. One or more fibrous layers may be positioned between the foam and the adhesive.

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.

CONNECTING TAPE MICROSTRUCTURE AND MANUFACTURING METHOD THEREOF
20220371303 · 2022-11-24 ·

A connecting tape microstructure includes a reinforced layer and two plastic layers. The reinforced layer has a first Young's modulus. The plastic layers are disposed on two opposite sides of the reinforced layer. Each of the plastic layers has a second Young's modulus. The first Young's modulus is larger than the second Young's modulus.

ARTICLE FOR SEALING OBJECTS
20220372814 · 2022-11-24 ·

The invention provides for an article of manufacture, being a sealing pad (410a, 410b, 510a, 510b, 610a) for providing resistance (obstruction) to infiltration of matter and/or energy into pre-manufactured products, including such as windows, doors and appliances. The invention also provides for a method of employing the sealing pad (410a, 410b, 510a, 510b, 610a) to provide location targeted and value added obstruction (resistance) to such infiltration into pre-manufactured products, in response to performance of infiltration testing.

Methods and compositions for on-demand release of ClO.SUB.2 .gas from UV-activated chlorite ion

Compositions and methods for generating ClO.sub.2 gas are disclosed. A composition that includes a chlorite salt is activated by exposure to ultraviolet light. After an optional storage period, the composition is then exposed to moisture, resulting in the generation of ClO.sub.2 gas. Exemplary compositions include polymers in which the chlorite salt is dispersed. The polymers may be used to form films that can be used to package, e.g., food products, pharmaceutical products, medical devices, and/or laboratory devices. Upon exposure to ultraviolet light and moisture, the packaging releases controlled quantities of ClO.sub.2 gas, which may disinfect and/or deodorize the packaged device or product.