Abstract

Process for producing a laminate being built of at least two monolayers of polymeric tapes, the polymeric tapes having a tensile strength of at least 200 MPa, said process comprises the steps of consolidating the thus stacked monolayers of polymeric tapes to obtain a laminate.

IPC Classes  ?

• B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B32B 3/10 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
• F41H 5/04 - Plate construction composed of more than one layer
• B29L 31/00 - Other particular articles

Abstract

consolidating the thus stacked monolayers of polymeric tapes to obtain a laminate.

IPC Classes  ?

• B32B 5/12 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by the relative arrangement of fibres or filaments of adjacent layers
• B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations

Abstract

A stack having at least one layer of tapes and at least one layer of multifilament yarn.

IPC Classes  ?

• B29C 65/00 - Joining of preformed parts; Apparatus therefor
• B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure
• B32B 37/22 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of both discrete and continuous layers

Abstract

A laminate for anti ballistic purposes is proposed which comprises unidirectionally placed polymeric tapes with a E-modulus of an individual polymeric tape of at least 50 GPa and a square meter weight of the laminate above 150 grams.

IPC Classes  ?

• F41H 5/04 - Plate construction composed of more than one layer

Abstract

The invention pertains Polymeric fibers coated with an olefin block copolymer containing resin, the olefin block copolymer having a density of 0,815 kg/dm3 to 0,920 kg/dm3 and a melting point of 110°C to 130°C and laminates comprising polymeric tapes embedded in a resin of olefin block copolymer having a density of 0,815 kg/dm3 to 0,920 kg/dm3 and a melting point of 110°C to 130°C

IPC Classes  ?

• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• D01F 8/06 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent

Abstract

Process for producing high strength polyethylene films or tapes comprising the steps of: providing a quantity of disentangled polyethylene, applying a pressure of at least 20 bar to the quantity of disentangled polyethylene and a temperature between the α-relaxation temperature and the melting temperature of the disentangled polyethylene Tm PE resulting in a block of disentangled polyethylene, skiving a film or tape off the block of disentangled polyethylene and, drawing said film or tape in a single or multi stage drawing step at a total draw ratio of at least 1:20.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating

Abstract

A stack is proposed comprising at least one layer of tapes and at least one layer of multifilament yarn.

IPC Classes  ?

• B32B 3/10 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• F41H 5/04 - Plate construction composed of more than one layer

Abstract

Process for producing a laminate being built of at least two monolayers of polymeric tapes, the polymeric tapes having a tensile strength of at least 200 MPa, said process comprises the steps of -forming a first monolayer of polymeric tapes by pre-tensioning the polymeric tapes and subsequently positioning the polymeric tapes under tension in a unidirectional, parallel manner, - forming at least a second monolayer over the first monolayer in the same manner the first monolayer is formed, thereby -stacking the at least two monolayers of polymeric tapes in such a way that the direction of the polymeric tapes is the same in every monolayer and that the polymeric tapes of each monolayer are offset to the tapes of the adjoining monolayer above or below that monolayer -consolidating the thus stacked monolayers of polymeric tapes to obtain a laminate.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins

Abstract

A method for the producing self-reinforced polymeric three-dimensional products is disclosed comprising the steps of a) chopping a polymeric tape in mono-extruded or co-extruded form into short lengths, b) spraying the chopped polymeric tapes into or onto a porous mould, and c) thermosetting and/or thermobinding the chopped tapes by suitable binders and/or binding matrixes to obtain a preform, characterized in that the chopped polymeric tapes, the binders and/or binding matrixes are already given right from the start in the correct quantity.

IPC Classes  ?

• B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
• B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements

Abstract

A flexible panel comprising a plurality of individual laminates, the laminates being built of at least two monolayers of unidirectionally arranged polymeric tapes bonded together, the direction of the polymeric tapes being the same in every monolayer and the polymeric tapes of each monolayer are offset to the tapes of the adjoining monolayer, characterised in that the laminates are stacked on top of each other and secured to each other by separated bonding points or bonding lines.

IPC Classes  ?

• B32B 3/14 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a face layer formed of separate pieces of material

Abstract

Process for producing a laminate being built of at least two monolayers of polymeric tapes, the polymeric tapes having a tensile strength of at least 200 MPa, said process comprises the steps of -forming a first monolayer of polymeric tapes by pre-tensioning the polymeric tapes and subsequently positioning the polymeric tapes under tension in a unidirectional, parallel manner, - forming at least a second monolayer over the first monolayer in the same manner the first monolayer is formed, thereby -stacking the at least two monolayers of polymeric tapes in such a way that the direction of the polymeric tapes is the same in every monolayer and that the polymeric tapes of each monolayer are offset to the tapes of the adjoining monolayer above or below that monolayer -consolidating the thus stacked monolayers of polymeric tapes to obtain a laminate.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics

Abstract

Process for producing fabrics comprising at least one layer of unidirectionally arranged polymeric tapes with the tapes comprising at least a core component, the process comprises the steps of forming at least one layer of unidirectionally arranged polymeric tapes in a weaving machine with the polymeric tapes being used as warp yarn and a binding thread being used as weft yarn or with the polymeric tapes being used as weft yarn and a binding thread being used as warp yarn and subsequently consolidating the at least one monolayer using pressure and heat, characterised in that the melting temperature of the binding yarns lies below the consolidating temperature and the melting temperature of the core component of the polymeric tapes lies above the consolidating temperature.

IPC Classes  ?

• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
• D06C 7/00 - Heating or cooling textile fabrics

Abstract

A method of manufacturing a laminate of polymeric tapes, characterised in that polymeric tapes of the core-cladding type are used, in which the core material has a higher melting temperature than the cladding material, which method comprises the following steps: i) biassing the polymeric tapes, ii) positioning the polymeric tapes, iii) consolidating the polymeric tapes to obtain the laminate.

IPC Classes  ?

• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• B29C 70/04 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins