Abstract: Fluoropolymer compositions containing glass microspheres are described. The glass microspheres are surface-treated with functional, fluorinated silane compounds of the formula X—Rf—(O)p—(CH2)m—Si—Y3, wherein X is selected from the group consisting of CF2?CF—O—, CH2?CH—, CH2?CHCH2—, CH2?CHCH2—O—, and CH2?CHCH2—O—CH2—.

Abstract: A composition for use in bioseparation. The composition includes a plurality of hollow particles having a siliceous surface. The composition further includes a surface-modifying agent bonded to the hollow particles. The surface-modifying agent includes a binding segment and a reactive segment. The binding segment includes a silyl group and the reactive segment includes a reactive nitrogen group.

Abstract: Provided is a thermoplastic composite, a method for preparing a thermoplastic composite, and an injection-molded product. The thermoplastic composite comprises 35% to 85% by weight of thermoplastic resin, 5% to 45% by weight of a non-cellulosic organic fiber, and hollow glass microspheres in an amount of less than 5% by weight, based on 100% by weight of the total weight of the thermoplastic composite.

Abstract: The method of making a three-dimensional article includes heating a composition comprising a polymer and hollow ceramic microspheres, extruding the composition in molten form from an extrusion head to provide at least a portion of a first layer of the three-dimensional article, and extruding at least a second layer of the composition in molten form from the extrusion head onto at least the portion of the first layer to make at least a portion of the three-dimensional article. Three-dimensional articles are also described. A composition including a polymer and hollow ceramic microspheres is also described. The composition may be a filament. The polymer is at least one of a low-surface-energy polymer or polyolefin. The composition can be useful, for example, in melt extrusion additive manufacturing, for example, fused filament fabrication.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is a homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fluoroolefin independently represented by formula C(R)2?CF—Rf, wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: A masterbatch composition including glass bubbles and a toughening agent in a blend of syndiotactic 1,2-poly-butadiene and cis-1,4-polybutadiene is disclosed. The glass bubbles are present in an amount of at least 25 percent by weight, based on the total weight of the masterbatch composition. A method of making a rubber composition from the masterbatch composition is disclosed as well as a rubber composition and vulcanized rubber made from the masterbatch composition. A rubber composition that includes syndiotactic 1,2-polybutadiene, cis-1,4-polybutadiene, a toughening agent that includes at least one of a fluoroplastic or an organic or ceramic fiber, and glass bubbles in an amount up to 25 percent by weight, based on the total weight of the rubber composition, is also disclosed.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is a homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fluoroolefin independently represented by formula C(R)2?CF—Rf, wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is an amorphous homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fTuorookfe independently represented by formula C(R)2?CF—Rf; wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is a homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fluoroolefin independently represented by formula C(R)2?CF—Rf, wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: There is provided aqueous fluids comprising a mixture of at least two polysaccharides, water, and glass microspheres having pacified surfaces. There is also provided a method for making a fluid the method comprising (a) selecting a plurality of glass microspheres having alkaline surfaces; (b) coating the surfaces of the plurality of glass microspheres with an acid; and (c) combining the coated glass microspheres with (i) a mixture comprising at least two cross-linkable polysaccharides, and (ii) water. The fluids are useful, for example, as a drilling fluid.

Abstract: A composition for use in bioseparation. The composition includes a plurality of hollow particles having a siliceous surface. The composition further includes a surface-modifying agent bonded to the hollow particles. The surface-modifying agent includes a binding segment and a reactive segment. The binding segment includes a silyl group and the reactive segment includes a reactive nitrogen group.

Abstract: A composite particle includes a spheroidal core having a polymeric layer disposed thereon. In one embodiment, the polymeric layer includes a cationic surfactant and at least one of a nonionic polymer or an anionic polymer. In another embodiment, the polymeric layer includes a cationic polymer and an anionic polymer. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: A masterbatch composition including glass bubbles dispersed in a blend of syndiotactic 1,2-polybutadiene and cis-1,4-polybutadiene is disclosed. The glass bubbles are present in an amount of at least 30 percent by weight, based on the total weight of the masterbatch composition. A method of making a rubber composition from the masterbatch composition is disclosed as well as a rubber composition and vulcanized rubber made from the masterbatch composition.

Abstract: A masterbatch composition including glass bubbles dispersed in a blend of syndiotactic 1,2-polybutadiene and cis-1,4-polybutadiene is disclosed. The glass bubbles are present in an amount of at least 30 percent by weight, based on the total weight of the masterbatch composition. A method of making a rubber composition from the masterbatch composition is disclosed as well as a rubber composition and vulcanized rubber made from the masterbatch composition.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is a homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fluoroolefm independently represented by formula C(R)2?CF—Rf, wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is an amorphous homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fTuorookfe independently represented by formula C(R)2?CF—Rf; wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.

Abstract: Provided are composite material comprising hollow glass microspheres and a microcellular thermoplastic resin, articles molded from such materials, and methods of making such materials.

Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.

Abstract: A composite particle includes a spheroidal core having a polymeric layer disposed thereon. In one embodiment, the polymeric layer includes a cationic surfactant and at least one of a nonionic polymer or an anionic polymer. In another embodiment, the polymeric layer includes a cationic polymer and an anionic polymer. Methods of making the composite particles, composite materials, and articles including them are also disclosed.