Abstract

The present disclosure relates to a fiber, a method of forming a fiber, a system for forming a fiber, and a method of engineering tissue from a fiber. The fiber includes an engineered geometric feature forming a non-Euclidian geometry.

IPC Classes  ?

• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• A61F 2/10 - Hair or skin implants
• A61L 27/60 - Materials for use in artificial skin
• D01D 5/253 - Formation of filaments, threads, or the like with a non-circular cross sectionSpinnerette packs therefor
• D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters

Abstract

Disclosed is a three-dimensional microfiber extrudate structure and a process of forming a three-dimensional microfiber extrudate structure. The three-dimensional microfiber extrudate structure includes a matrix having a three-dimensional geometry wherein the three-dimensional geometry is a visco-elastic relaxation state of a preform introduced to a medium.

IPC Classes  ?

• A61K 9/20 - Pills, lozenges or tablets
• A61K 9/16 - AgglomeratesGranulatesMicrobeadlets

Abstract

A fiber having a non-uniform composition is disclosed. The fiber includes a first domain having a first composition and a second domain having a second composition different from the first composition. The fiber includes an interphase region intermediate the first and second domains that includes a blend of the first and second compositions to provide a gradual transition from the first domain composition to the second domain composition. A method for making such fibers is also disclosed.

IPC Classes  ?

• D01F 8/04 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers

Abstract

Disclosed is a spinneret and a method of spinning. The spinneret includes a first pore configured for extruding a first component of a multi-component fiber, a second pore configured for extruding a second component of the multi-component fiber, and a thermal insulator positioned between the first pore and the second pore and configured for preventing heat from the first component from damaging the second component. The first component and the second component have incompatible thermal resistance.

IPC Classes  ?

• D01D 5/30 - Conjugate filamentsSpinnerette packs therefor
• D01D 4/06 - Distributing spinning solution or melt to spinning nozzles
• D01D 1/09 - Control of pressure, temperature or feeding rate

Abstract

A microfiber extrudate and delivery process includes a bio-compatible polymer matrix forming a body of the microfiber extrudate, an exogenously excitable material arranged within the body, and an active load arranged within the body.

IPC Classes  ?

• A61K 9/16 - AgglomeratesGranulatesMicrobeadlets
• A61K 9/50 - Microcapsules
• A61K 9/70 - Web, sheet or filament bases
• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation

Abstract

A method for producing covert markers is disclosed. The method includes providing a substrate, providing a radiation source, providing a mask intermediate the substrate and the radiation source and transmitting radiation from the radiation source through the mask onto the substrate to ablate a portion of the substrate thereby creating the covert marker. The covert markers can be applied to genuine articles for later authentication.

IPC Classes  ?

• B41M 5/24 - Ablative recording, e.g. by burning marksSpark recording
• B41M 5/26 - Thermography
• B41M 3/14 - Security printing
• G09F 3/00 - Labels, tag tickets, or similar identification or indication meansSealsPostage or like stamps