Abstract: An improved chemical protective garment is provided by first forming a multilayer film structure having an inner layer of substantially isotactic oriented polypropylene homopolymer sandwiched between a layer of ethylene-propylene random copolymer and a layer of ethylene-vinyl acetate. The multilayer film structure is then bonded to a two-layer polyester substrate using an elastomeric adhesive. In a preferred embodiment, a barrier material having a layer of ethylene-vinyl alcohol is combined with the multilayer film structure to form a composite, which is then combined with the substrate.

Abstract: A protective garment made of material which includes a high barrier, multi-layer film incorporating EVOH laminated to a spun bonded polyester substrate. The film is a five layer construction with a layer of EVOH in the middle, bracketed by water resistant bonding resin layers and outer layers of polyethylene or polyester. The substrate is formed with low temperature binders and is calendered on both sides, the outer side being calendered much more extensively than the inner side. The material is joined together at pattern edges by thermal bonding under pressure or by a strip of the film thermal bonded to material segments.

Abstract: Method and device for sealing thermoplastic material. A support plate (16) supports sheets (29, 31) of the thermoplastic material, and a heat element (18) is provided adjacent thereto. A pressure plate (20) mates with the support plate and includes recess means (24) for receiving the heat element means. A confined melt zone (35) is formed between the heat element and the pressure plate (or the recess means) when they are in mating relationship. The confined melt zone serves to confine the melted thermoplastic material to form a good seal by relieving stress between the seal and the seal-material interface. The heat element and recess means are manufactured as interchangeable dies in different sizes and shapes for different materials. The heat element may be formed into different shapes, such as a glove for manufacturing gloves.

Abstract: Gloves and other articles are manufactured from a pair of thermoplastic sheets which are drawn along a process line in adjacent, facing relation. A portion of one of the sheets is pushed outwardly to form an outwardly projecting loop, and a thumb-shaped line is formed between adjacent sides of the loop. The loop and adjacent portions of the thermoplastic sheets are then advanced to a finger and hand-forming station, where a thermobonded line of the shape of fingers and hand is formed between the thermoplastic sheets in registry with the thumb-shaped line, while retaining an open wrist portion. One may then cut away the resulting glove at the wrist portion.