公开(公告)号：US20210095127A1

公开(公告)日：2021-04-01

申请号：US17007644

申请日：2020-08-31

Applicant: SABIC Global Technologies B.V.

Inventor： Bart VANDORMAEL ,  Arno C. HAGENAARS ,  Johannes Gerardus Petrus GOOSSENS ,  Johannes DE BROUWER ,  Pieter Jan Antoon JANSSEN

IPC: C08L83/10 ,  C08G64/18 ,  C08G64/16

Abstract: A foamable poly carbonate composition comprising 5 to 95 wt % of a poly(siloxane) block copolymer comprising a poly(carbonate-siloxane) comprising 50 to 99 wt % of bisphenol A carbonate units and 1 to 50 wt % of dimethylsiloxane units, each based on the weight of the poly(carbonate-siloxane), a poly(ester-carbonate-siloxane) comprising bisphenol A carbonate units, isophthalate-terephthalate-bisphenol A ester units, and 5 to 200 dimethyl siloxane units, or a combination thereof; 5 to 95 wt % of an auxiliary component comprising a poly(alkylene ester), a poly(ester-carbonate), or a combination thereof, and optionally, a homopolycarbonate; optionally, up to 10 wt % of an additive composition, wherein the composition has a glass transition temperature of 140° C. and below measured using differential scanning calorimetry, and wherein a foamed sample of the composition has an average cell size of 10 nanometers to 20 micrometers.

公开(公告)号：US20210008781A1

公开(公告)日：2021-01-14

申请号：US16473736

申请日：2017-12-27

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Vaidyanath RAMAKRISHNAN ,  Bruke Danniel JOFORE ,  Johannes Gerardus Petrus GOOSSENS ,  Pieter Jan Antoon JANSSEN ,  Hans LOOIJ

IPC: B29C48/70 ,  B29C48/05 ,  B29C48/00

Abstract: Provided are extrusion dies having entrance, orientation, merging (205), and exit (211) sections, which dies may be used to produce fibers having, e.g., oriented reinforcement materials (e.g., PTFE) dispersed within. The dies provide fibers having enhanced mechanical and processing properties. The orientation section comprises orientation channels (203) wherein a ratio of a cross-sectional area having of the channel inlet to a cross-sectional area of the channel outlet is between 2 and 45.

公开(公告)号：US20190388670A1

公开(公告)日：2019-12-26

申请号：US16480810

申请日：2018-01-30

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Johannes DE BROUWER ,  Herwig JUSTER ,  Pieter Jan Antoon JANSSEN ,  Marco NEFS

IPC: A61M37/00 ,  B29C55/02 ,  B29C59/02

Abstract: A method of forming a microneedle array having alternating layers of material includes transforming a multilayer sheet by cutting, assembling and stretching steps to form a stretched, stacked multilayer sheet. The stretched, stacked multilayer sheet is cut, assembled and stretched to form a film, the film is heated, and at least a portion of the film is caused to be displaced into a plurality of recesses thereby forming a plurality of protrusions at a surface of the film.