摘要:
A thread made from extruded silicone rubber that is crosslinked after extrusion, wherein the thread includes a fluor rubber portion exclusively at a surface of the thread.
摘要:
Methods of treating fabrics using sol-gel halamine chemistry to impart antimicrobial properties thereto are described, as well as fabrics produced by the described methods. In one embodiment, the antimicrobial fabrics may be used to fabricate antimicrobial divider curtains for use in hospitals and medical facilities.
摘要:
The present invention provides, inter alia, durable and regenerable microbiocidal textiles and methods for preparing same. Such textiles can be readily prepared using a wet finishing process to covalently attach a hetercyclic N-halamine to a cellulose based material or other polymeric material. Once prepared, the textiles of the present invention have a broad spectrum of biocidal activity against pathogenic microorganisms. Moreover, the biocidal activity of such textiles can be regenerated by washing with a halogenated solution.
摘要:
Adhesion of polyester yarn, tire cord or fabric in polyester reinforced rubber goods such as tires is improved by fluorinating the polyester yarn, tire cord or fabric prior to incorporation into the tire and rubber goods.
摘要:
The present invention relates to surface modification of synthetic resin fiberform materials, notably polyamide and polyester fiberform materials whose surface has been modified by treatment with elemental fluorine, and to the fluorination process.
摘要:
Process for lactonizing an acrylic copolymer of acrylonitrile and a monomer containing a hydroxyl group, in an acidic medium, containing nitric acid and/or nitrates by carrying out lactonization while passing chlorine gas through the acidic medium.
摘要:
Yarns for electrical conduction that comprise a composite of fibres composed of carbon nanotubes and/or of a multiplicity of graphene layers and have a specific porosity are already known. The yarns have an electrical insulation layer, which is produced by application of a polymer coating. The electrical insulation layer has to adhere to the yarn sufficiently well for the insulation not to detach even in the event of mechanical stress, for example deflection with a small bending radius. Furthermore, the electrical insulation layer should be as thin as possible in order to achieve a low thermal resistance. Additionally, the electrical insulation layer has to be elastic enough to be able to cope with any geometric changes in the non-rigid yarn without detaching. In the electric conductor according to the invention, the electrical insulation is improved. The invention provides for the outer fibres of the composite to be fluorinated in such a way that they form an electrical insulation layer (2) and for the fibres in an internal region (3) to be electrically conductive.
摘要:
A MANUFACTURED MATERIAL AND A PROCESS FOR MAKING THE MATERIAL IS DISCLOSED. THE MANUFACTURED MATERIAL I A HYDROGEN CONTAINING SUBSTANCE HAVING A FUORINATED SURFACE AND IN WHICH HYDROGEN ATOMS, WHICH MAY BE PRESENT IN HYDROXYL RADICALS ATTACHED TO A CARBON ATOM CHAIN, HAVE BEEN REPLACED IN THE SURFACE OF THE MATERIAL BY FLUORINE ATOMS OR RADICALS, AND WITH SUCH FUORINATED SURFACE OF THE MATERIAL CONTAINING AT LEAST ABOUT 2 MICROGRAMS OF SUCH FLUORINE PER CM.2 OF SURFACE AREA. THE PROCESS FOR MAKING SUCH A MATERIAL INCLUDES THE STEPS OF SELECTING A SUBSTRATE CONTAINING HYDROGEN ATOMS WHICH MAY BE PRESENT IN HYDROXYL RADICALS ATTACHED TO A CARBON ATOM CHAIN, SELECTING A GAS CONTAINING FLUORINE ATOMS OR RADICALS, PLLACING THE SELECTED SUBSTRATE BETWEEN ELECTRODES IN A FLOWING ATMOSPHERE OF THE SELECTED GAS AT SUBATMOSPHERIC PRESSURE, AND SUBJECTING THE SUBSTRATE TO AN ELECTRODELESS DISCHARGE OF AT LEAST ABOUT 0.2 K.W.H/YARD 2 TO CHEMICALLY ACTIVATE BOTH THE SURFACE OF THE SUBSTRATE AND THE GAS, AND EXCHANGE THE FLUORINE ATOMS OR RADICALS FOR SURFAE HYDROGEN ATOMS OR RADICALS TO PRODUCE A MATERIAL WITH A SURFACE. WHICH COMPARED T THE SUBSTRATE BEFORE THIS PROCESS TREATMENT, IS MORE WATER REPELLENT (WITHOUT SEALING PORES), IS MORE CORROSION AND SOIL RESISTANT, MORE CHEMICALLY INERT, MORE LIKE THE RELATVELY EXPESIVE POLYTETRAFLUOROETHYLENE. WHEN THE SUBSTRATE IS A MATERIAL HAVING A RELATVELY INERT SURFACE, SUCH AS POLYETHYLENE, THE PROCESS IS DISCLOSED AS INCLUDING AN INITIAL TREATMENT STEP THAT INVOLVES ION BOM-BARDMENT OF THE SUBSTRATE IN HELIUM GAS TO ACTIVATE THE SURFACE BEFORE THE SURFACE IS TREATED IN THE FLUORINE CONTAINING GAS.