Posted DateApril 15, 2019
Electrospun polymer fibers are typically limited with respect to the width of fibers produced, identification of appropriate solvents, and high capital costs of production. In contrast, this continuous microlayer coextrusion approach enables a solventless technique, whereby multilayered coextruded f...
high capital costs
multilayered coextruded films
volumetric flow rates
membrane support materials
simple aqueous solvents
Posted DateOct. 19, 2012
This multilayer polymeric structure provides a nonlinear dielectric optical material that has a substantial modulation in the nonlinear dielectric constant across the material. (A material with a modulation in the linear dielectric constant is commonly called a "photonic crystal" when the period of ...
multilayer polymeric structure
linear dielectric constant
intensity dependent transmission
nonlinear dielectric constant
Posted DateJuly 23, 2019
This technology from the laboratory of Dr. Rigoberto Advincula at Case Western Reserve University provides a new, efficient method of forming particles for controlled guest agent release. By coextruding two or more different polymer materials, a multilayer polymer composite sheet may be formed compr...
and/or delayed manner
delivery and/or administration
encapsulated and/or loaded
unstable therapeutic agents
polymer material and/or
Posted DateAug. 25, 2015
A polymer nanofiber scaffold that includes any number of melt extruded nanofibers that are chemically modified to append surface functionality to the nanofibers. ...
polymer nanofiber scaffold
append surface functionality
melt extruded nanofibers
Posted DateSept. 10, 2015
The technology is a continuously coextruded nanofiber process that enables one to produce a PEO (polyethylene oxide), clotrimazole, and PCL (polycaprolactone) sandwich or mat for topical drug delivery applications; i.e., useful and easy-to-manufacture polymer fiber scaffolds for a wide-range of appl...
obtain clinical validation
Posted DateNov. 10, 2015
Multilayer coextrusion technologies that enable the preparation of multilayered membrane structures completely without solvents. The elimination of solvents reduces the production of separation membranes to coextrusion and post process stretching. This provides for efficient production of effective,...
post process stretching
gas barrier/separation applications
non-toxic barrier membranes
multilayer coextrusion technologies
Posted DateNov. 2, 2016
Process for producing coextruded, multilayered polymer films that are delaminated or separated to form rectangular nanofibers and fibrous substrates. These nano-fiber structures may be used as fibrous substrates, separation membranes, and/or filters. The multilayered polymer films can be formed usin...
multilayered polymer films
form rectangular nanofibers
higher surface area-to-volume
resulting materials possess
reduced pore size
Posted DateJan. 18, 2018
In this technology, a novel solvent-free or low-solvent approach to fabricating multilayered anisotropic particles is provided by combining a forced assembly by layer-multiplying coextrusion technique with reactive ion etching. One of the key advantages of this technique combined with reactive ion e...
vertical sidewall profile
reactive ion etching
high-throughput anisotropic etching
layer-multiplying coextrusion technique
multilayered polymer film
Posted DateFeb. 6, 2018
This technology is characterized by a multilayer barrier thin film, comprising an alternating polymer bilayer architecture encapsulated by a moisture-isolated protective surface layer. It possesses excellent barrier properties to oxygen and water vapor, as well as good transparency and flexibility, ...
flexible electronic devices
continuous co-extruded films
high density polyethylene
high barrier performance
multilayer co-extrusion technique
Posted DateMarch 20, 2018
These confined crystallization multilayer films of two different polymers provide substantially impermeable gas diffusion properties. Polymers may be selected from a group including polypropylene, HDPE, polyethylene oxide, polycaprolactone, polyamide, polyvinylidene fluoride, PTFE, etc. ...