B29C41/045

Flexible manufacture of polymeric tubing including flow-altering structures
10357899 · 2019-07-23 · ·

Tubular polymeric structures are formed by creating a convex mold conforming to a fluid pathway design, depositing a coating of polymer over the mold, and in situ removing the mold without drawing it against the polymer. The resulting structures are fabricated with flow-altering features.

Fabrication for ultra-compliant probes for neural and other tissues

Methods of fabricating ultra-miniature, ultra-compliant probe arrays through spin coating, wherein a dissolvable material in hydrogel form is dispensed onto an assembled mold with wires. Once the dissolvable material is dispensed onto the mold, centrifuging spin casts the material by evaporating the solvent, forming a dried dissolvable polymer. Finally, a device is used with water to remove excess dissolvable material to obtain a dissolvable needle with wires.

Centrifugal hollow basic body forming method and device
10286581 · 2019-05-14 ·

A centrifugal hollow basic body forming method includes forming a parison that includes a superficial frozen layer and an inner uncured layer, by filling a model with material; and centrifuging to form the hollow basic body by causing the inner uncured layer to separate from the parison under centrifugal force generated by a centrifugation device and provide a separated uncured material. A centrifugal hollow basic body forming device includes a molding device structured to form a parison that includes a superficial frozen layer and an inner uncured layer; and a centrifugation device that generates a centrifugal force effective to separate the inner uncured layer from the superficial frozen layer as separated uncured material and form the hollow basic body, and that is provided with an overflow chamber for collecting the separated uncured material.

Liner and Composite Tank Assembly Method

An improved liner for a container in which gases, liquids, or powders are stored. The liner is a multi-layer structure made in a roto molding machine. The liner includes a first outer layer made of metallocene polyethylene, an intermediate gas and liquid impermeable layer, and one or more inner layers made of thermoplastic material compatible with the material stored inside the container. During the molding process, the three layers are made sequentially with the second and third layers being bonded and fused to the adjacent layer to form a uniform composite layer. The outer layer is made of metallocene polyethylene with superior rigidity and relatively low coefficient of thermal expansion making the liner less susceptible to cracking and useful as a layup structure for molding a structure around it. The liner is then used as a layup structure for outer fibers and infused resin.

Compositions and methods related to proteins capable of reversible transition to a melt

Provided are compositions and methods for making a variety of products. The methods involve mixing sucker ring teeth (SRT) protein and a plasticizer or a solvent to obtain a mixture of the SRT protein and the plasticizer. When the SRT is mixed with a plasticizer it is heated to between 32 C. and 195 C. to obtain an SRT protein melt. The melt is used to form a wide variety of products. When the SRT is mixed with a solvent, such as an organic solvent or an aqueous solvent, a solution of the SRT protein is formed, and is subsequently used to forming a product from the solution, wherein the product contains SRT protein.

SYSTEMS AND METHODS FOR PRINTING ON A CONTACT LENS
20240248327 · 2024-07-25 ·

One embodiment of a contact lens includes a lens body configured to fit directly on the surface of the eye and legible characters positioned on the lens body. Another embodiment of a contact lens comprises a lens body including polymeric material and a lens enhancing material (e.g., ink, silicone material, medicament material, and the like) encapsulated in the polymeric material. The lens enhancing material can be in the form of isolated sections distributed in the surrounding polymeric material. Methods of making contact lenses include forming a first lens layer including a first surface, forming a pattern on the first surface, and forming a second lens layer over the pattern.

MOLECULARLY ENGINEERED HIGH THERMAL CONDUCTIVITY POLYMERS AND METHODS FOR MAKING THE SAME

Methods of increasing thermal conductivity of a bulk polymer are provided. The methods include contacting a bulk polyelectrolyte polymer comprising an ionizable repeating pendant group with an aqueous liquid having a pH that ionizes the pendant group and isotropically extend the polyelectrolyte polymer to an extended non-globular chain conformation. The polyelectrolyte polymer so treated thus exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. In other aspects, the present disclosure provides a high thermal conductivity material comprising a bulk polyelectrolyte polymer bearing a repeating charged group and having an extended non-globular chain conformation and that exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. The high thermal conductivity material may be used in electronic devices, including as housings/encapsulation and thermal interfaces.

Methods for the production of fluoropolymer fibers

A method of producing fibers, includes placing a composition that includes one or more fluoropolymers in the body of a fiber producing device and rotating the device at a speed sufficient to eject material from the fiber producing device to form fluoropolymer microfibers and/or nanofibers.

ROTARY DEVICE AND SPHERICAL RECEIVING DEVICE FOR RECEIVING AT LEAST ONE ROTATIONAL MOLD
20180126606 · 2018-05-10 ·

The invention relates to a spherical receiving device for receiving at least one rotational mold, which is configured and intended to be driven to rotate in a rotational device by means of a drive wheel rolling on the outer side of the spherical receiving device. The spherical receiving device is distinguished by the fact that it has at least one guiding device which causes a drive wheel rolling on the outer side of the spherical receiving device to follow a predetermined rolling path on the outer side of the spherical receiving device. The invention also relates to a rotational device which has such a spherical receiving device and a drive wheel which is driven by means of a drive motor, said drive wheel rolling on the outer side of the spherical receiving device and driving the spherical receiving device to rotate.

PET PREFORM INJECTION SYSTEM AND PRODUCTION METHOD
20240375324 · 2024-11-14 ·

The invention is related to the production of pet preform and similar plastic products. as well as similar-shaped metallic pieces manufactured by plastic injection.