B29K2105/128

Methods for manufacturing serving tray with inner raised surface incorporating thermoplastic polyurethane
11083317 · 2021-08-10 · ·

A serving tray comprised of at least one synthetic material and an insert which provides a non-slip top surface of the serving tray. The textured relief is preferably made of thermoplastic polyurethane (TPU) which allows a glass or other item to be placed on the serving tray without the item sliding or slipping while the tray is in motion. As the tray is being fabricated, the TPU is mechanically bonded with the top surface of the tray while a textured relief is simultaneously defined into the top surface. The textured relief provides adequate frictional force to an item being placed on the tray so as to substantially prevent its lateral movement. The tray also includes an inner support structure disposed on its inner surface. The inner support structure provides an upward facing edge which allows a plurality of trays to be easily and efficiently stacked or nested on one another.

METHOD OF MANUFACTURING A MOULDED ARTICLE AND MOULDED ARTICLE OBTAINED THEREBY
20210197425 · 2021-07-01 · ·

A method of manufacturing a moulded article from first and second moulding compounds includes attaching a first moulding component to a carrier tool, placing the carrier tool and the attached first moulding component in a mould, applying a first moulding process, removing the carrier tool, placing a second moulding component in the mould, and applying a second moulding process to shape the first and second moulding components and bond the first moulding component to the second moulding component. A moulded article is also disclosed.

THERMOPLASTIC SHEETS AND ARTICLES WITH VARIABLE LOFTING CAPACITY
20210146650 · 2021-05-20 ·

Certain configurations are described herein of a thermoplastic sheet or article comprising a plurality of porous layers coupled to each other. In one configuration, the thermoplastic article may comprise a core layer, a first layer disposed on one surface of the core layer and a second layer disposed on another surface of the core layer. In some instances, each of the core layer, the first layer and the second layer may comprises a web of open celled structures formed by a plurality of reinforcing materials bonded together with a thermoplastic material and optionally may also include a lofting agent. The lofting capacity in different layers can be selected or tuned to provide desired properties.

HYBRID FIBER BASED MOLDING THERMOPLASTIC ARTICLE AND PROCESS OF FORMING SAME

A process is provided for thermal molding an article with at least one layer of thermoplastic fibers that are non-woven and uni-directionally oriented in combination with at least one layer of reinforcing fibers. The reinforcing fibers including glass, carbon, nature based, and combinations thereof; alone or mixed with chopped thermoplastic fibers. Upon subjecting the layers to sufficient heat to thermally bond in the presence of non-oriented filler fibers, thermoplastic fiber fusion encapsulates the filler fibers. The filler fibers impart physical properties to the resulting article and the residual unidirectional orientation of the thermoplastic melt imparts physical properties in the fiber direction to the article. By combining layers with varying orientations of uni-directional fibers relative to one another, the physical properties of the resulting article may be controlled and extended relative to conventional thermoplastic moldings. The uni-directional fibers may have discontinuities along the length of individual fibers.

Fiber-reinforced resin shaped product having grains on at least part of surface
10913182 · 2021-02-09 · ·

A fiber-reinforced resin shaped product includes: reinforcing fibers with a weight average fiber length of 100 mm or less; and a thermoplastic resin. The fiber-reinforced resin shaped product has grains on at least a part of a surface thereof. A maximum height (Rz) of the grains is 100 m to 200 m, and an average pitch (Rsm) between adjacent grains is 1100 m or less.

System for manufacture of low density sheets rigidized with nylon fibers
10894343 · 2021-01-19 ·

A rigid nylon porous material sheet is produced by the adhesive bonding of kinked nylon fibers having lengths of 1 to 5 inches. These fibers are cut from melt spun nylon or harvested from clean carpet fibers by shearing. The adhesive used is glycol, which attacks nylon at 180 C. forming a gel on the surface of the kinked fibers, but does not attack the nylon fibers when the kinked fiber assembly is cooled to 150 C. to precipitate ultrafine nylon within the gel. The fiber assembly is heated to 160 C. to bond the nylon fibers. It is then washed in hot water to remove unused glycol. The other adhesive is polyurethane, which is applied to the kinked fibers using coupling agents of aqueous resorcinol and vinyl pyrrolidone.

Injection molded panels
10882231 · 2021-01-05 · ·

Provided is a molded panel having at least one surface resembling a knit-like pattern, said panel comprising a plurality of stitches at least partially interconnected through connecting members wherein at locations where the stitch strand and the connecting member intersect they form together an integrated, solid molded material location and wherein the panel comprises through going apertures extending therethrough.

METHOD OF MANUFACTURING A COMPOSITE PART COMPRISING A CORE AND AT LEAST ONE SKIN REGION

A method of manufacturing a composite part comprising, a core (16) and at least one skin region (20, 22) formed of a skin polymer attached thereto, the skin polymer being a low-friction thermoplastic polymer, by: a) providing a mold with a heatable mold cavity; b) loading into the mold cavity a core element having a surface with at least one contacting region provided with a plurality of anchoring sites (10), andpreviously or subsequentlyloading into the mold cavity a layer of the skin polymer in powder form adjacent said contacting region and embedding the anchoring sites; c) applying a heat pressing step melting the skin polymer powder to form a molten skin polymer matrix (20, 22, 32); d) applying a cooling step, solidifying the skin polymer matrix forming a skin region mechanically engaged into anchoring sites of the core element forming the core.

MOLDING PROCESS FOR INSULATION PRODUCT

A molding process includes the operation of placing insulation material comprising fibers and binder on the fibers in a mold cavity. The molding process further includes the operation of transferring heat to the insulation material to cause the binder to cure.

Thermal Insulators and Methods Thereof
20200263336 · 2020-08-20 ·

The provided articles and methods use a non-woven fibrous web containing 60-100 wt % of oxidized polyacrylonitrile fibers; and 0-40 wt % of reinforcing fibers having outer surfaces comprised of a polymer with a melting temperature of from 100 C. to 300 C. The non-woven fibrous web has an average bulk density of from 15 kg/m.sup.3 to 50 kg/m.sup.3, with the plurality of fibers substantially entangled along directions perpendicular to a major surface of the non-woven fibrous web. Optionally, the oxidized polyacrylonitrile fibers can have a crimped configuration. Advantageously, these articles can display a combination of low thermal conductivity, high tensile strength, and flame resistance.