Methods for preparation of functionalized polyvinylpyrrolidone with polymeπzablβ functions and amphipathic polydimethylsiloxane-PVP block copolymers A (meth)acrylated polyvinylpyrrolidone compound and a (meth)acrylamide-functionalized polyvinylpyrrolidone structures are disclosed The block copolymers are useful as biomaterial components in biomedical devices They provide improved wettability, lubricity, and material compatibility to the biomedical device, e g, ophthalmic lenses
MEDICAL DRESSING AND NEGATIVE PRESSURE WOUND THERAPY APPARATUS USING THE SAME
申请人:CHEN Jui-Hsiang
公开号:US20120150078A1
公开(公告)日:2012-06-14
A medical dressing is provided. The medical dressing includes a first and a second woven layers respectively having a fiber of polyurethane or a yarn of polyurethane; and a plurality of linear support portions woven between the first and second woven layers.
ARTICLES WITH SOIL-SHEDDING PERFORMANCE
申请人:NIKE, Inc.
公开号:US20170252722A1
公开(公告)日:2017-09-07
An article of manufacture has an external surface at least partly defined by a material compositionally comprising a polymeric hydrogel that takes up water when wetted. The hydrogel-containing material is effective in reducing soil accumulation on, and/or for reducing soil adhesion to, an article designed for a variety of uses, such as transportation, vehicle safety, storage, recreation, leisure, waste disposal, construction, gardening, or traffic control.