The present disclosure relates to a hollow board 1 with first and second main surface layers 3, 5. A plurality of distance elements connecting the first and second main surface layers and maintain a predetermined distance there between. The main surface layers include at least a layer of high-density fiber, HDF, board, and a plurality of distance elements are distributed in the space between the main surface layers, and at least some comprise at least one elongate HDF board strip 15 which is oriented such that its longitudinal edges interconnect the first and second main surface layers 3, 5. The HDF boards of the surface layers and of the at least some of the distance elements comprise wood particles bonded by a resin including an isocyanate, such as methylene diphenyl di-isocyanate, MDI.

Systems, feeder devices and methods for moving particulate hot melt adhesive from an adhesive supply to an adhesive melter. A feeder device includes a body having an inlet and an outlet, and an interior communicating with the inlet and the outlet. The inlet is configured to receive particulate hot melt adhesive from an outlet of the adhesive supply, and the outlet is configured to provide particulate hot melt adhesive to an inlet of the adhesive melter. The feeder device further includes a mechanical agitator positioned in the interior for urging the particulate hot melt adhesive in a flow direction toward the outlet.

A continuous process for preparing insulation panels having thick (0.2 mm to 1 mm) metal facing panels and a fiber-reinforced polymer foam core is disclosed. In the process, a bottom metal facing panel (2) is continuously supplied. A mat (10) of reinforcing fibers and a foamable resin composition (19) are applied to the bottom facing panel. A flexible barrier layer (5) is applied atop the foamable resin composition, and the assembly is passed through nip rolls (12,13) to compress the assembly and force the resin composition into the fiber mat. An adhesive layer (4) and top metallic facing layer (1) are then applied on top of the flexible barrier layer, and the resulting assembly is gauged and cured by passing it through a double band laminator (11).

A light blocking composite film and preparation method and use thereof. The light blocking composite film comprises a middle non-woven fabric layer, and at least one light-reflective layer and at least one light-absorptive layer alternately arranged on each side of the non-woven fabric layer, wherein the light-reflective layer is made of a resin containing light-reflective particles, and the light-absorptive layer is made of a resin containing light-absorptive particles. The light blocking composite film of the present invention has the advantages of good blocking, not easy to curl, good durability, light-weight structure, beautiful color and the like.

An electronic heat transfer label includes a substrate. A pattern layer is printed on the substrate, and an adhesive is printed on the pattern layer to form a first adhesive layer. A chip is attached onto the first adhesive layer, and an adhesive is printed on the chip to form a second adhesive layer. The second adhesive layer covers the chip, and a hot-melt layer is arranged on the second adhesive layer. A method for preparing the electronic heat transfer label includes: S1: printing an ink on a substrate and drying the ink to form a pattern layer; S2: printing an adhesive on the pattern layer and drying to form a first adhesive layer; S3: attaching a chip onto the first adhesive layer; S4: printing an adhesive onto the first adhesive layer and the chip, and drying to form a second adhesive layer.

Provided is an elastic laminate comprising a multilayer film comprising first elasticity skin layers arranged on both sides of a second elasticity core layer, said second elasticity core layer having higher elasticity than the sandwiching first elasticity skin layers, wherein the first elasticity skin layers comprise an olefin polymer, and the second elasticity core layer comprise an elastomer layer, and said multilayer film having arranged on both outer surfaces thereof non-woven layers bonded either (i) through hotmelt pressure-sensitive adhesive layers or (ii) by means of ultrasonic bonding or thermal bonding,
wherein the elastic laminate is characterized by an elongation strength of less than 20 N/50 mm width when elongated by 50% with 300 mm/min elongation speed.

Provided among other things is an elastomeric article providing a chemical barrier, the article having a layered structure comprising a sequential laminate of: (a) a latex-based elastomeric polymeric barrier layer; (b) a non-reactive tie adhesive resin layer comprising oxo (—(C═O)—) groups; and (c) a polyamide layer; wherein the layered structure has a first side nearest the latex-based elastomeric polymeric barrier layer and a second side; wherein the layered structure is effective to provide a chemical permeation time in excess of 100 minutes pursuant to EN 16523-1:2015 for benchmark solvents of acetone, ethyl acetate and methanol, when applied to the first side, and in excess of 100 minutes for acetone when applied to the second side; and wherein the elastomeric layer is primarily not polyolefin.

A polymer composition for use in a hot melt adhesive comprises at least one semierystalline, low molecular weight (LMW) propylene-based polymer; at least one essentially amorphous, high molecular weight (HMW) propylene-based polymer; and at least one essentially amorphous, LMW propylene-based polymer. A hot melt adhesive composition further contains a tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. The hot melt adhesive is useful for a variety of industrial applications where bonding of low surface energy substrates is encountered, including disposable nonwoven hygienic articles, labeling and other assembly applications. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies. The composition demonstrates improved peel strength while maintaining very good creep resistance.

A manufactured composite comprising synthetic turf and impermeable geomembrane is used in a single-layer capping system as the single layer to provide permanent, impermeable and functional aesthetic cover for a job site. During installation of composite pieces at a job site, an edge portion of a tufted section of a second composite piece is overlaid onto an edge untufted section of the first composite piece already laid and anchored over foundation soil to form a reinforced overlapping seam, through which the two composite pieces are physically and permanently joined together. As composite pieces are joined together, the continuity of synthetic grass and the continuity of impermeability are extended and realized over the entire site to form permanent, impermeable and functional aesthetic cover for a job site.

The invention comprises a method of making synthetic turf. The method comprises applying an ethylene-vinyl acetate copolymer adhesive to a first primary surface of a tufted primary backing to form a coating thereon and wherein the primary backing is tufted with a plurality of synthetic filaments to form a face pile extending outwardly from a second primary surface of the synthetic turf opposite the first primary surface and heating the ethylene-vinyl acetate copolymer adhesive to a temperature above its melting point so that the ethylene-vinyl acetate copolymer adhesive melts and at least partially flows into the primary backing. The method also comprises heating a linear low-density polyethylene film to a temperature below the softening point of the film and pressing the heated linear low-density polyethylene film into contact with the polymer coated first primary surface of the tufted primary backing. The method further comprises allowing the ethylene-vinyl acetate copolymer adhesive and the linear low-density polyethylene film to cool, whereby the linear low-density polyethylene film is adhered to the tufted primary backing.