Sabic Global Technologies B.v.

Jacob Scott Labelle

Erich Otto Teutsch

Richard H Peters

Huiqing Wu

Qunjian Huang

Yanju Wang

Roy Martinus Adrianus L'Abee

Wujun Rong

Amanda Marie Flores

Peter James Zuber

Kim R Choate

A process including shearing a first dispersion medium and a second dispersion medium under conditions that precipitate a plurality of polymeric fibers; and collecting the plurality of polymeric fibers at a rate of at least 300 grams/hour. The first dispersion medium is a solution including at least one polymeric component. The at least one polymeric component includes a polyetherimide component selected from the group consisting of polyetherimide homopolymers, polyetherimide co-polymers, polyetherether ketones homopolymers, polyetherether ketones copolymers, polyphenylene sulfones homopolymers, polyphenylene sulfones copolymers, and combinations thereof. Products produced by the process can be non-woven paper, medical implants, ultra-fine filters, membranes, hospital gowns, electrical insulation paper, honeycomb structures and personal hygiene products, dialyzers, blood, oxygenator filters, intravenous (IV) filters, diagnostic test filters, and blood/apheresis filters.

Shear spun sub-micrometer fibers

Disclosed herein are polycarbonate fibers and fibrous substrates, such as papers, containing such fibers. The polycarbonate fibers are produced from a polymeric composition comprising a cross-linkable polycarbonate containing endgroups derived from a monofunctional benzophenone or containing repeating units derived from a difunctional benzophenone. The polycarbonate fibers can be combined with other fibers to form the fibrous substrate. Upon exposure to ultraviolet light, crosslinking of the polycarbonate fibers will occur, improving various properties of the fibrous substrate.

Polycarbonate fibers and substrates comprising same

A method for preparing a high temperature melt integrity separator, the method comprising spinning a polymer by one or more of a mechanical spinning process and an electro-spinning process to produce fine fibers.

Process of making battery separators via spinning

A process of forming a non-woven web including spinning continuous polymeric filaments including one selected from a poly(phenylene ether) component, a poly(phenylene ether)-polysiloxane block copolymer, and combinations thereof. The filaments can have a length to diameter ratio that is more than 1,000,000, and a diameter ranging from 50 nanometers to 5 microns. The spinning can include passing a polymer through a spinneret having a plurality of orifices in a non-electrospinning environment. The process can further include chopping the plurality of continuous filaments and obtaining a plurality of chopped nano-fibers and forming the nano-fibers into a nonwoven web. The spinning can be conducted at a rate of at least 300 grams/hour/spinneret.

Force spun sub-micron fiber and applications

High temperature melt integrity battery separators via spinning

Growing community of inventors

Pittsfield, MA, United States of America

Jacob Scott Labelle