Abstract:
Disclosed are reactive antibiotics having structure of reactive groups bonded to fluoroquinolone based antibiotics having strong anti- bacterial properties, the reactive groups of which are covalently bondable to natural fibers. When the reactive antibiotics of the present invention are used to treat natural fibers, the antibiotics generate covalent bond with the natural fibers to give anti-bacterial properties to the natural fibers without adverse effect to color of the fibers, so that it enables production of anti-bacterially functional fiber product that protects against infectious diseases and bad odor, and prevents staining and brittleness of the fiber.
Abstract:
A method of modifying a polymeric material which comprises the steps of activation and treatment with a hydrophilic polymer, or comprises the steps of activation, treatment with a hydrophilic polymer, and monomer grafting in this order, or comprises the step of treatment with a solvent, followed by these steps. Thus, the polymeric material, e. g. , a polyolefin, is improved in hydrophilicity, adhesion, etc. without lowering the practical strength thereof. The polymeric material thus improved in adhesion and other properties can be used in many applications where water absorption and adhesion are required, such as an absorption material, e. g. , a wiping/cleansing material, a water retention material, a material for microorganism culture media, a separator for cells, a synthetic paper, a filter medium, a medical/sanitary/cosmetic supply, a textile product for clothing, and reinforcing fibers for composite materials.
Abstract:
Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. Multifunctional molecules for use in modifying the surfaces of materials such as textile fibers, yarns and other fabrics made of or, including cotton, wool and nylon, are provided. The multifunctional molecules can include hydrophobic regions and/or hydrophilic regions. The multifunctional molecules also may include binding functional groups that permit either non-covalent or covalent binding to the material being modified, thus permitting the multifunctional molecule to form a non-covalent or covalent coating on the material. The methods and compounds disclosed herein may be used to modify materials to improve properties such as resistance, grease repellency, soil resistance, permanent press properties, and quickness of drying.
Abstract:
Waxes and polymeric waxes can graft with a coupling agent by employing a radical process. The resulted grafted waxes can be applied: 1) for coating and bonding with surfaces of materials to be applied as water-proofing antirust and reinforcing fillers; 2) as enhancing coupling agent to bond with plastics, rubber and asphalt; 3) as adhesive materials.
Abstract:
An electrically conductive textile element and method of producing same. The method including the steps of: (i) modifying a surface of a textile element with a negatively-charged polyelectrolyte; and (ii) coating the modified surface of the textile element with metal particles.
Abstract:
A method for coating a yarn, wherein said yarn is exposed to a gaseous phase from whence monomers settle on the surface of the yarn in a polymerized state. In order to provide a yarn with a microstructured and especially dirt repellant surface, the yarn is a flock yarn or a chenille yarn. A yarn produced in such a way is especially suitable for use as a skin in paper machines.
Abstract:
The invention concerns a method for treating a solid material whereof the chemical structure defines the reactive protogenous hydrophilic functions accessible to gases by applying at least a gas stream (3) on at least a micro-dispersion (5) of at least a grafting reagent RX produced on the solid material, R being a hydrophobic group, X being selected such that HX is volatile in normal conditions, R and X being selected such that the reaction of RX on the hydrophilic functions produces the covalent grafting of the hydrophobic groups R with formation of the compound HX, the reaction capable of being carried out in heterogeneous solid gas medium on all the reactive hydrophilic functions accessible to gases and only thereon. The invention also concerns the resulting hydrophobic solid material, and is useful for obtaining natural or artificial fibrous or mineral structures impermeable to water and to aqueous solutions and/or absorbing fats.
Abstract:
An industrial textile comprises a polymeric substrate and a resin system grafted onto the polymeric substrate via a primer. The resin system comprises waterborne thermoplastic, optionally fluorinated, polyhydroxyether resin and/or one or more analogues thereof and at least one co-resin.