Abstract: Laminated sheet product reinforced with composite heat sealable plastic strands and process for preparation thereof.

Abstract: A method of manufacturing a thin net by a polycondensation reaction is disclosed. One of the reactants is deposited upon a template and subsequently the second reactant is also deposited on the template. An embossed structure is obtained which can then be biaxially oriented to form a net sheet if desired.

Abstract: The invention relates to a process and apparatus for making a thermoplastic polymer sheet and particularly a thermoplastic polymer netting structure. It further relates to a process and apparatus for splitting a thermoplastic polymer sheet or net structure so as to divide the sheet or net at the center thereof into two thin sheets. According to the invention, a previously formed plastic sheet or netting structure is reheated and then placed between two opposed heated smooth surfaces such as metal rolls. The sheet or net is heated to a temperature within the range of temperatures wherein the adhesion of the resin forming the sheet to the metal rolls is good and where its cohesion is poor. The opposed faces of the sheet or net structure adhere to the heated smooth surfaces. The opposed heated surfaces are separated; this causes the sheet or net to split in half to follow each surface.

Abstract: An improved method of manufacturing fusible net products and the products resulting therefrom are disclosed. Low-melt-strength polymers are extruded with a stable high-melt-strength polymer to form a composite net structure having a carrier net layer of the stable high-melt-strength polymer carrying a net layer of similar structure and of the low-melt-strength polymer. After the molten layers are quenched and solidified the net layer on the carrier is easily delaminated. The net layer can be removed anytime after the material ceases to be tacky and may be conveniently stored as a composite if desired. The carrier polymer net is available for sale directly as is or it may be oriented or ground and recycled to again form the carrier. The low-melt-strength polymer may be sandwiched between outer layers of high-melt-strength polymer or the low-melt-strength polymer may be carried on both sides of the high-melt-strength polymer.