Abstract:
A multi-layer structure includes a fluoropolymer bonded to a substrate. The structure is prepared by heating a bonding composition to form the bond. The bonding composition includes an amino-substituted organosilane. The bonding composition includes non-adhesive materials.
Abstract:
A method for making a fine electrically conductive grid embedded in a polymer substrate. The method includes the steps of providing a polymer substrate, forming a pattern of grooves in the substrate, filling the grooves with electrically conductive powder, and then applying heat and/or pressure to the substrate. The application of heat and/or pressure to the substrate causes the grooves to collapse inward against the conductive powder. Collapsing the grooves compacts the conductive powder within the groove, thereby establishing a continuously conductive grid line or circuit. The narrow grid lines that result allow more light to transmit through the substrate. The method allows grid lines to be made with higher aspect ratios (ratio of line depth to line width) than is possible by previous methods.
Abstract:
The invention relates to compositions useful for bonding fluoropolymer to substantially non-fluorinated polymer. The compositions of the invention comprise a substantially non-fluorinated polymer or a mixture of said polymers, a di- or polyamine, preferably, an aliphatic diamine, and an onium catalyst, preferably, a phosphonium salt.
Abstract:
This invention provides a method of bonding substantially non-fluorinated polymeric material to dissimilar polymers, particularly fluoropolymer materials, utilizing a bonding composition comprising substantially non-fluorinated polymeric material comprising a blend of carboxyl, anhydride, imide, or oxycarboxy functional polyolefin with a suitable organic or inorganic base and an organo-onium compound that is stable in the presence of the base. Multi-layer articles and composite constructions, including retroreflective sheeting, fuel line hoses, and adhesive articles made of a fluoropolymer layer and a substantially non-fluorinated layer are also provided.
Abstract:
This invention provides curable fluoroelastomer compositions comprising: (a) a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (b) at least one organo-onium compound such as those selected from the group consisting of ammonium, arsonium, phosphonium, stibonium, amino-phosphonium, phosphorane (e.g. triarylphosphorane), iminium, and sulfonium compounds; and (c) one or more aryl, allyl or alkyl carbonate-blocked compounds as crosslinking agents. Methods of curing fluoroelastomer compositions, and articles made therefrom are also described.
Abstract:
A coating composition is described comprising:(i) a zwitterionic compound comprising sulfonate-functional groups and alkoxysilane groups and/or silanol-functional groups; (ii) alcohol and/or water; and (iii) a tetraalkoxysilane, oligomers thereof, lithium silicate, sodium silicate, potassium silicate, silica, or combinations thereof, along with coated articles and methods of making and using.
Abstract:
A method of making a coatable composition includes: providing a first composition comprising silica nanoparticles dispersed in an aqueous liquid vehicle, wherein the silica nanoparticles have an average particle size of less than or equal to 100 nanometers, wherein the first composition has a pH greater than 6; acidifying the first composition to a pH of less than or equal to 4 using inorganic acid to provide a second composition; and dissolving at least one metal compound in the second composition to form the coatable composition, wherein said at least one metal compound comprises a titanium compound. Coatable compositions and photocatalytic compositions, preparable by the method, are also disclosed. Photocatalytic articles including the photocatalytic compositions are also disclosed.
Abstract:
Described herein is a method of coagulating a fluoropolymer latex comprising: providing an amorphous fluoropolymer latex; providing unmodified inorganic nanoparticles; contacting the amorphous fluoropolymer latex with a sufficient amount of unmodified inorganic nanoparticles to coagulate the amorphous fluoropolymer.
Abstract:
The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.