An underlayment material has a fiber mat partially infused and/or coated with asphalt and coated with silicone coating. A selvedge edge, may be coated or uncoated. The back of the underlayment has a self-adhesive coating, which is protected before use by a siliconized release film. The upper surface of the underlayment is coated with silicone composition providing waterproofing and radiation control. When unsaturated, the selvedge edge of fibrous material establishes a reinforced bond with an overlying sheet. When saturated with asphalt, the bond at the selvedge edge between adjacent sheets is between the asphalt layer of the selvedge edge and the adhesive on the bottom of the adjacent sheet.

A sheet includes a first surface, a second surface, an adhesive portion, a fold-back portion, and a first area. The first surface extends in a first direction. The second surface is opposite to the first surface, and allows light to pass therethrough from the first surface to the second surface. The adhesive portion is a portion of the first surface to which an adhesive is applied, and is disposed at a first end portion of the sheet in the first direction. The fold-back portion is disposed on the first end portion. The first area is disposed on the adhesive portion between a first edge of the first end portion and the fold-back portion.

The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.

A multilayer film comprises an inner layer and an outer layer. The multilayer film can be used to wrap products. The multilayer film is free of tris(nonylphenyl) phosphite (TNPP).

A sheet of polymeric material that is constructed to be coiled into a roll while in a substantially flat configuration. The sheet is positionable over a load bearing surface and at least partially around side surfaces of a bunk of a trailer. The sheet of polymeric material has at least two living hinges that are disposed along a length of the sheet and are substantially parallel to opposing side edges. The living hinges provide areas for the sheet to flex which allows the sheet of material to be manipulated about the trailer bunk. The sheet includes a top surface is configured to contact the trailer bunk where the top surface includes a plurality of ribs extending parallel to the opposing side edges and along a length of the sheet. The plurality of ribs is spaced apart and defines channels there-between that are configured to drain water from the trailer bunk.

The present invention relates to a layered packaging film for fresh produce. The film provides a water vapour transmission rate of at least 30 g m.sup.−2 per day, and includes a polymer layer with a sealing temperature of 205° C. or less. The present invention also provides a comprising fresh produce enclosed by a packaging film, wherein the packaging film is sealed by an elongate seal extending along the underside of the package, and wherein the elongate seal has a sealing strength such that when the packaging film is lifted from the upper side of the fresh produce package the seal breaks permitting the packaging film to be removed from the fresh produce in a single lifting action.

A packaging film includes an inner layer for contacting a packaged subject, a first adhesive layer, a gas barrier layer, a second adhesive layer and an outer layer which are laminated in that order; wherein the inner layer contains linear low-density polyethylene in an amount of more than 40% by mass and no more than 90% by mass and low-density polyethylene and/or high-density polyethylene, does not contain any leachable components and has at least 0.920 g/cm.sup.3 density and at least 50 μm thickness; the first and second adhesive layers, contain antioxidants, and has less than 30 μm thickness; and the first adhesive layer, the gas barrier layer and the second adhesive layer have less than 30 μm thickness.

1) Multilayer film comprising 2 thin layers D and E of a thermoplastic material bonded together by a continuous layer A consisting of a hot-melt pressure-sensitive adhesive composition comprising: from 40% to 70% by weight of a composition of styrene block copolymers consisting of a mixture of diblock and triblock copolymers; and from 30% to 60% by weight of one or more tackifying resins;

said multilayer film being such that the adhesive layer A is: connected to the layer D by means of a tie layer B, and connected to the layer E by means of a tie layer C,

each of the 2 layers B and C respectively consisting of a composition (b) and (c) each comprising: a polyolefin (P) chosen from a polyethylene (PE) and a polypropylene (PP), optionally modified with an unsaturated carboxylic anhydride; and at least one elastomer compound (EL) chosen from a copolymer of ethylene and of propylene (EL1) and a styrene block copolymer (EL2) comprising at least one elastomer block.

2) Process for producing said film by coextrusion.

3) Use of said film for producing resealable packagings.

Disclosed herein are novel or improved microporous battery separator membranes, separators, batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries. Further disclosed are laminated multilayer polyolefin membranes with exterior layers comprising one or more polyethylenes, which exterior layers are designed to provide an exterior surface that has a low pin removal force. Further disclosed are battery separator membranes having increased electrolyte absorption capacity at the separator/electrode interface region, which may improve cycling. Further disclosed are battery separator membranes having improved adhesion to any number of coatings. Also described are battery separator membranes having a tunable thermal shutdown where the onset temperature of thermal shutdown may be raised or lowered and the rate of thermal shutdown may be changed or increased. Also disclosed are multilayer battery separator membranes having enhanced web handling performance during manufacturing processes and coating operations.

The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.