B29K2023/083

Method of microcellular foam molding
11318647 · 2022-05-03 ·

A method of microcellular foam molding an article is provided with filling a mold with a polyolefin compound; forming crosslinks in the mold to obtain a crosslinked mold; dissolving a supercritical fluid into the crosslinked mold under a predetermined pressure and at a predetermined temperature for a predetermined period of time to obtain a second mold configured to allow the supercritical fluid to effuse through; and heating the second mold at a second predetermine temperature for a predetermined foaming time until a foamed article is finished in the second mold. A second embodiment involves using elastomers as foaming materials is also provided.

Film, molded product, and method for producing film
11718074 · 2023-08-08 · ·

A film with a gas barrier resin having a glass transition temperature of 70° C. or below and an elastomer, and having an oxygen permeability coefficient of 200 mL/(m.sup.2.Math.day.Math.atm) or less. In a case where tension is applied to stretch the film in a machine direction (MD) at 20° C. such that a twofold increase in length of the film is kept for 30 seconds, and then the tension is released, a ratio L.sub.2/L.sub.1 is 1.5 or less, where L.sub.1 denotes the length of the film prior to application of the tension and L.sub.2 denotes the length of the film subsequent to release of the tension. An elongation ratio at break E.sub.TD/E.sub.MD of the film is preferably 0.9 or more and 1.7 or less, there E.sub.MD denotes the elongation at break in MD and E.sub.TD denotes the elongation at break in the transverse direction (TD).

Heating element for inflation and sealing system

A protective packaging formation device is disclosed herein. The device includes an inflation assembly that directs fluid between first and second overlapping plies of a web material. The device also includes a sealing mechanism. The sealing mechanism includes a heating zone and a cooling zone. The sealing mechanism also includes a heating element that extends along both the heating zone and the cooling zone, with the heating element having a first profile in the heating zone and a second profile in the cooling zone.

Heating element for inflation and sealing system

A protective packaging formation device is disclosed herein. The device includes an inflation assembly that directs fluid between first and second overlapping plies of a web material. The device also includes a sealing mechanism. The sealing mechanism includes a heating zone and a cooling zone. The sealing mechanism also includes a heating element that extends along both the heating zone and the cooling zone, with the heating element having a first profile in the heating zone and a second profile in the cooling zone.

IMPLANTABLE DEVICES FOR DRUG DELIVERY WITH REDUCED BURST RELEASE
20230301902 · 2023-09-28 ·

The invention provides implantable drug delivery devices comprising a core comprising a polymer (or polymer blend) and one or more drugs or pharmaceutical substances, and an outer shell comprising a polymer (or polymer blend) and one or more porogen materials. The invention reduces burst release of drug. Pharmaceuticals such as triiodothyronine (T3) or ropinirole can be delivered by the devices.

Article of footwear with thermoformed siped sole structure

An article of footwear includes an upper coupled to a sole structure. The upper has a ground facing surface, and opposing medial and lateral sidewalls disposed on and extending from opposite medial and lateral sides of the ground facing surface. The sole structure is formed from a plurality of non-coextensive, thermoplastic foam layers, where each layer extends across a portion of the ground facing surface of the upper. These layers include at least a first foam layer and a second foam layer. The first foam layer has a different hardness and/or density than the second foam layer. Each of the first foam layer and the second foam layer extends into direct contact with, and is directly adhered to the lateral sidewall and the medial sidewall of the upper, and the first foam layer is secured to the second foam layer via an adhesive or a thermal weld.

INJECTION MOLDING OF CROSSLINKING POLYMERS

Non-time dependent measured variables are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity.

PRODUCT PACKAGING WITH HEAT SEALABLE BARRIER MATERIAL
20220024663 · 2022-01-27 ·

A package that is suitable for packaging an article for collecting or administering a pharmaceutical active substance is disclosed. The package includes a first packaging component that includes a product-contacting sealant layer that includes a first ethylene vinyl alcohol copolymer. The package includes a second packaging component that includes a product-contacting sealant layer that includes a second ethylene vinyl alcohol copolymer. The ethylene content of the second ethylene vinyl alcohol copolymer is equal to or less than about 38 percent and the ethylene content of the first ethylene vinyl alcohol copolymer is greater than the ethylene content of the second ethylene vinyl alcohol copolymer.

PRODUCT PACKAGING WITH HEAT SEALABLE BARRIER MATERIAL
20220024663 · 2022-01-27 ·

A package that is suitable for packaging an article for collecting or administering a pharmaceutical active substance is disclosed. The package includes a first packaging component that includes a product-contacting sealant layer that includes a first ethylene vinyl alcohol copolymer. The package includes a second packaging component that includes a product-contacting sealant layer that includes a second ethylene vinyl alcohol copolymer. The ethylene content of the second ethylene vinyl alcohol copolymer is equal to or less than about 38 percent and the ethylene content of the first ethylene vinyl alcohol copolymer is greater than the ethylene content of the second ethylene vinyl alcohol copolymer.

Bicycle Saddle, Saddle Pad, and Method for Producing a Bicycle Saddle or Saddle Pad
20210362794 · 2021-11-25 ·

The invention relates to a bicycle saddle having a saddle shell, on the underside of which a frame is arranged. A saddle pad is arranged on the upper side of the saddle shell. According to the invention, the saddle pad has two padding elements for improved comfort, wherein in a preferred embodiment the inner padding element is made of TPU (thermoplastic polyurethane).