C09J2203/346

Method and apparatus for adhesive application to barrier sheet

According to one embodiment, a process for applying an adhesive material onto a barrier sheet substrate is provided. The process includes providing an adhesive material having viscosity of at least about 10,000 centipoise at 250? F. The adhesive material is applied to a multitude of cavities on a surface of a first tool with a coater unit in close proximity to the surface. The adhesive material is transferred from the surface of the first tool to the substrate supported on a surface of a second tool and pressed against the surface of the first tool.

ADHESIVE SHEET

The adhesive sheet for bonding an unvulcanized rubber to a metal, including a base cloth layer impregnated with a solvent dispersed type vulcanization adhesive having reactivity with the unvulcanized rubber; and an adhesive layer having reactivity with the metal.

A SELF-ADHERING BITUMINOUS SEALING ELEMENT WITH IMPROVED BONDING AT LOW TEMPERATURES

A sealing element includes: a waterproofing adhesive layer having first and second major surfaces, an adhesive layer covering at least a portion of the first major surface of the waterproofing adhesive layer, and a carrier layer on the side of the waterproofing adhesive layer opposite to the side of the adhesive layer, wherein the waterproofing adhesive layer is composed of a self-adhering bituminous composition and the adhesive layer is composed of a non-bituminous pressure sensitive adhesive. The sealing element is used as a waterproofing, roofing, vapor barrier, vapor retarder, or a fa?ade membrane, or as a waterproofing, roofing tape, or fa?ade tape.

One-Component Moisture-Curable Adhesive Composition

A one-component moisture-curing adhesive composition is provided, comprising from 80 to 100 wt % of an isocyanate-functional prepolymer obtainable by reacting (a) a polyisocyanates mixture having an average nominal isocyanate functionality in the range of from above 2.00 to below 2.05, and (b) a polyol mixture, wherein the equivalent ratio between isocyanate groups in (a) and hydroxyl groups in (b) is in the range of from 3.5 to 7.0, wherein the content of free isocyanate groups in the adhesive composition is in the range of from 14 to 17 wt %, and wherein polyisocyanates mixture (a) comprises (a1) a diisocyanate comprising methyl diphenyl diisocyanate in excess of (a2) a uretonimine-modified methyl diphenyl diisocyanate comprising at least 3 isocyanate functional groups. A method of bonding a first piece of material to a second piece of material using such adhesive composition, and an object made from the method, are also provided.

FELT-BASED FOUR-SIDE-PROCESSED MATERIAL AND METHOD FOR PRODUCING SAID PROCESSED MATERIAL
20240271011 · 2024-08-15 ·

There is provided a technique by which when using a felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer, not only a worker can release the release paper from a pressure-sensitive adhesive layer quickly and favorably but also breakage of a base material made of rock wool can be suppressed. There is provided a felt-based four-sides-processing material having a pressure-sensitive adhesive layer having a continuous pressure-sensitive adhesive region provided on any of flat surfaces of a base material in a longitudinal direction of the flat surface and release paper pasted to the pressure-sensitive adhesive layer, wherein the base material is a laminate obtained by laminating felt-like rock wool in a thickness direction, the laminate having a thickness of 3 to 50 mm and a width of 5 mm to 10 cm and having a long, rectangular column shape, the pressure-sensitive adhesive layer has a configuration such that the continuous pressure-sensitive adhesive region is provided on the flat surface of the base material where the pressure-sensitive adhesive layer is provided in a width narrower than a width of a short side of the base material, and a non-pressure-sensitive adhesive region where a pressure-sensitive adhesive is not present is provided along the whole of at least one edge in the longitudinal direction, and the release paper has the same size as the flat surface of the base material. There is also provided a method for producing the felt-based four-sides-processing material.

Partially cured coated sheet
12077690 · 2024-09-03 · ·

A sheet includes a support layer and a coating layer on a side of the support layer. The coating layer is partially cured. The coating layer has carbon-carbon double bonds. The relative amount of carbon-carbon double bonds is higher at the surface of the coating layer than at the contact surface of the coating layer with the support layer. Methods are disclosed to manufacture such sheets; and to produce a decorative panel using such sheets.

APPARATUS FOR MANUFACTURING A REINFORCED COMPOSITE PIPE USING COMPRESSION TECHNIQUES

An apparatus for manufacturing pipes using thermoplastic pipe and tape (continuous fiber, fully wetted in a similar thermoplastic as the pipe) that embeds its fibers into pipe surface. The thermoplastic pipe is mechanically compressed prior fiber tape being applied. Outer diameter reduction of the pipe is at least partly maintained by the fiber tape being tightly wrapped around the pipe immediately after compression causes the pipe to contract. Then, an external heat source is applied to the pipe causing the thermoplastic to melt and the pipe to undergo thermal expansion. Fibers stretch less and are embedded into the molten layer of the pipe, creating a permanent bond between the fibers and the pipe. Individual pipes may be joined using couplers or butt welds.

Adhesive mixture used for the purpose of creating water activated stick on insulation

A self-stick insulation includes an insulation product and an adhesive coating applied to a major surface of the insulation product. The adhesive coating includes between about 5-15% by weight of the adhesive coating of at least one of polystyrene-maleic anhydride (SMA) and polyacrylic acid (PAA), between about 1 and 8% by weight of the adhesive coating of an alcohol amine, between about 25 and 50% by weight of the adhesive coating of a polyvinyl alcohol, and between about 20 and 40% by weight of the adhesive coating of a starch paste. The adhesive is activated with the application of liquid water.

A SEALING ELEMENT WITH IMPROVED BONDING TO CEMENTITIOUS COMPOSITIONS
20240309193 · 2024-09-19 · ·

A scaling element including a filled polymeric layer including a polymer component including a polyvinylchloride resin and at least one ethylene vinyl acetate copolymer and at least one inorganic filler. The sealing element can be used as a waterbar or as a waterproofing membrane, to a method for scaling a joint between two sections of concrete, to a method for waterproofing a substrate, and to a method for producing a sealing element.

WATERPROOFING MEMBRANE SYSTEM AND METHOD
20240309634 · 2024-09-19 · ·

A waterproofing membrane system for waterproofing a concrete substrate includes a first layer comprising a thermoplastic elastomeric waterproof material using advanced polymerization and squeeze technology. The second layer comprises a carrier sheet that comprises a fabric. The third layer comprises an adhesive to provide bonding of the first layer with a concrete substrate upon contact. In addition, the third layer may reduce migration of water and vapor traveling between the first layer and the concrete substrate. In some examples, the waterproofing membrane system also includes a fourth layer to provide mechanical protection and ease of handling for the first layer, the second layer, and the third layer. In some examples, the first layer comprises a thermoplastic polyolefin (TPO), the fabric comprises polypropylene or polyethylene, the adhesive comprises a C5 petroleum resin, and the fourth layer is a protective coating comprising quartz sand (SiO2) having a reflectivity of 4.5%.