B29L2007/007

MACHINE AND METHOD FOR PRODUCING STRIPS FROM FIBER-REINFORCED PLASTIC COMPOSITE MATERIALS
20220297397 · 2022-09-22 ·

A machine and a method produce strips from a fiber-reinforced plastics composite material. The machine includes a housing through which fibers pass and in which profiled bars are fixedly or rotatably mounted, which are oriented perpendicularly to the passing direction of the fibers and by which forces can be applied alternately to the top and bottom of the fibers and to their coating with a plastics material in order to impregnate the fibers and to consolidate the plastics material between the fibers. The ratio of the average total contact length of all the profiled bars used in the impregnation in millimeters to the number of profiled bars is between 2:1 and 1:400, preferably between 1 and 1:200 and particularly preferably between 1:10 and 1:100.

Flat flexible hose for transporting fluids
20220275885 · 2022-09-01 ·

A flat flexible hose for transporting a fluid, for example water, is adapted to move between an inoperative position having a flattened configuration and an operative position, in which the hose expands radially under pressure from the fluid. The hose has a first inner layer defining an axis, a second covering layer, and a reinforcement textile layer therebetween. The first and second layers are made of a first and respectively a second thermoplastic elastomeric material adapted to adhere to each other. The reinforcement textile layer is made of rigid textile yarns which at least partially have a respective first and second predetermined inclination opposite to each other so that the length of the hose remains unchanged both in the inoperative and the operative positions. The reinforcement textile layer is a knitted layer with tricot chain stitches with rows of stitches and courses of stitches made of chain stitches.

METHOD AND DEVICE FOR PRODUCING AT LEAST ONE PLA STRIP

Techniques for producing at least one PLA strip involve: a) providing a strip-shaped extruded PLA film, b) heating the PLA film provided according to step a) to a temperature in the range from 40 to 70° C., c) cutting the PLA film heated according to step b) into the at least one PLA strip, and d) stretching the PLA film cut according to step c).

Carrier for reversibly immobilizing one or more objects
11452249 · 2022-09-20 · ·

A carrier for reversibly immobilizing one or more objects is disclosed. The carrier comprises a frame having a major axis, a top surface, a bottom surface, and one or more openings through the frame along the major axis. The carrier also comprises a film comprising a thermoplastic elastomer material and having a top surface and a bottom surface. The film is attached to the frame based on thermal bonding of the top surface of the film to the bottom surface of the frame, is under tension along the major axis, and is free to flex at the openings. The top surface of the film comprises one or more exposed top surface portions that are accessible through the openings. The exposed top surface portions exhibit a holding force on stainless steel as per ASTM D1000 that is greater than that of the bottom surface of the film.

Woven irrigation tubing, apparatus and method of making same
11441706 · 2022-09-13 · ·

Woven irrigation tubing comprising a woven, extrusion coated & laminated tube formed of a high density polyethylene (HDPE) outer layer, a low density polyethylene (LDPE) middle layer and a linear low density polyethylene (LLDPE) inner layer. The finished tubing is treated for ultraviolet resistance. The tubing is tied off at a distal end with a proximal end connected to a pressurized irrigation source. Watering holes are created in the tubing at spaced intervals and the resulting water streams are directed into parallel plowed furrows. The tubing is completely recyclable. The tubing is formed by manufacturing tape for the woven outer tubing cover, stretching the tape along its length to strengthen it, weaving the outer layer from the tape, flattening the woven outer layer, extrusion coating each surface of the outer layer with LDPE, laminating the LLDPE inner layer to the LDPE, reversing and winding the tubing for storage and distribution.

PROCESS FOR PRODUCTION OF FIBER REINFORCED TAPE

The invention relates to a process for the production of a tape comprising a plurality of impregnated continuous multifilament strands and a polymer sheath which intimately surrounds the plurality of impregnated continuous multifilament strands, wherein each of the plurality of impregnated multifilament strands extends in the longitudinal direction, wherein each of the plurality of impregnated continuous multifilament strands comprises at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent, wherein the process comprising the steps of a) unwinding from a package the continuous glass multifilament strands, b) applying the impregnating agent to the continuous glass multifilament strands to form the plurality of impregnated continuous multifilament strands, c) placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction and d) applying a sheath of a thermoplastic polymer composition around the plurality of impregnated continuous multifilament strands of step c) to form the tape, wherein steps c) and d) are performed in a die having a guiding means arranged for placing the plurality of impregnated continuous multifilament strands in parallel alignment in the longitudinal direction, wherein the plurality of impregnated continuous multifilament strands pass through a melt of the thermoplastic polymer composition inside of the die downstream of the guiding means.

Tape of a plurality of sheathed continuous multifilament strands

The invention relates to a tape comprising a plurality of sheathed continuous multifilament strands, wherein each of the sheathed continuous multifilament strands comprises a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein each of the cores comprises an impregnated continuous multifilament strand comprising at least one continuous glass multifilament strand, wherein the at least one continuous glass multifilament strand is impregnated with an impregnating agent in an amount from 0.50 to 15.0 wt %, for example from 0.5 to 10.0 wt % or for example from 10.0 to 15.0 wt % based on the sheathed continuous multifilament strand, wherein the impregnating agent has a melting point of at least 20° C. below the melting point of the thermoplastic polymer composition, has a viscosity of from 2.5 to 200 cSt at 160° C., wherein the continuous glass multifilament strand comprises at most 2 wt % of a sizing composition based on the continuous glass multifilament strand and wherein the polymer sheath consists of a thermoplastic polymer composition, wherein the thermoplastic polymer composition comprises at least 60 wt %, for example at least 80 wt % of a thermoplastic polymer, wherein the amount of impregnated continuous multifilament strand is in the range of 10 to 70 wt % based on the sheathed continuous multifilament strands and wherein the amount of polymer sheath is in the range of 30 to 90 wt % based on the sheathed continuous multifilament strand and wherein the sum of the amount of impregnated continuous multifilament strand and the polymer sheath is 100 wt %.

Extruder system and method for extruding cord-reinforced tire components
11400631 · 2022-08-02 · ·

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, in particular for tire components, wherein the extruder system comprises an extruder head with flow channels for receiving an extrusion material from an extruder, a die for receiving said extrusion material from the flow channels and a cord guide for guiding cords side-by-side in a cord plane into the die, wherein the extruder head is provided with an insertion slot that extends in an insertion direction parallel to the cord plane through the extruder head, wherein the flow channels debouch into the insertion slot at a flow area, wherein the insertion slot is arranged for receiving the die and the cord guide in the insertion direction into a die position downstream of the flow area and a cord guide position upstream of the flow area, respectively, with respect to the insertion direction.

SPORTING APPARATUS AND INDUSTRIAL PRODUCTS
20220212073 · 2022-07-07 ·

There is herein described a range of sporting products comprising sucker elements, which can be used in various uses such as on products which require, for example, hand or any other type of grip contact. The grip contact may be with the feet or hands (or any other part of the body). The sporting products that the grips may be used on may comprise rackets (e.g. for tennis/badminton/squash etc.), bats (e.g. cricket/baseball/table-tennis etc.), bicycles, motorcycles, golf clubs, water sports (surfing, windsurfing) etc. The sucker elements may also be included with other sporting product such as on the inside and/or outside of running sock or shoes for example. There is also described a range of industrial products comprising sucker elements which can be used in a range of applications such as on a range of vehicle parts (e.g. bus rails, train rails, boat rails, steering wheels, motorbike handles and foot pegs etc.), industrial machinery (e.g. handles for tools such as drills, pneumatic drills etc.), flooring (e.g. decking on boats and in industrial environments), crockery, bathroom and shower flooring, and surfaces to aid disabled people.

APPARATUS AND METHOD FOR PRODUCING A GATHERED OR GATHERABLE MATERIAL

The present invention relates to an apparatus for producing a gathered material, wherein the material consists of two material web portions and a thread positioned between the material web portions and the two material web portions are connected to one another at two connecting surfaces, wherein the thread is disposed between the two connecting surfaces such that the thread is connected to the material web portions, wherein the apparatus comprises a sonotrode having a first sealing surface and a counter tool having a second sealing surface, wherein the counter tool is cylindrical with a lateral surface and a cylinder axis and the second sealing surface is disposed on the lateral surface, wherein the sonotrode and the counter tool are disposed with respect to one another in a processing position such that the material web portions and the thread can be guided through a gap formed by the first and the second sealing surface in a feed direction tangential to the lateral surface of the counter tool. To overcome or at least mitigate the described drawbacks, it is proposed according to the invention that the sonotrode comprise a groove which is oriented in feed direction and extends over the entire first sealing surface for receiving the thread.