Patent classifications
C08J2431/04
GREASE-RESISTANT FILM, GREASE-RESISTANT BASE MATERIAL, AND GREASE-RESISTANT PAPER
An oil-resistant film may be provided by an oil-resistant base material that is excellent in the oil resistance even in not only a plane part but also a bent part of a package can be obtained and also to the provision of an oil-resistant base material having the oil-resistant film and an oil-resistant paper having the oil-resistant film. An oil-resistant film may contain a polyvinyl alcohol-based polymer (A) and a polymer particle (B) containing a polymer having a glass transition temperature of 40° C. or lower, wherein the content of the polymer particle (B) is 1 part by mass or more and less than 150 parts by mass based on 100 parts by mass of the polyvinyl alcohol-based polymer (A); and an oil-resistant base material (oil-resistant paper) having the oil-resistant film on a base material (paper).
EXPANDED THERMOPLASTIC POLYURETHANE BEADS AND PREPARATION METHOD AND APPLICATION THEREOF
The present invention relates to expanded thermoplastic polyurethane beads, a preparation method for same, and an application thereof. The expanded thermoplastic polyurethane beads consists of components of the following parts by weight: 100 parts of a thermoplastic polyurethane, 1-10 parts of a cell size stabilizer, and 1-35 parts of a melt viscosity modifier. The preparation method for the expanded thermoplastic polyurethane beads is also disclosed. The bead is produced by employing a volatile blowing agent to immerse the thermoplastic polyurethane, comprising the pore size stabilizer and the melt viscosity modifier, in an aqueous suspension, and is then followed by the foaming process. Utilization of the expanded thermoplastic polyurethane beads of the present invention allows for preparation of a foam product. The expanded thermoplastic polyurethane beads prepared per the present invention has uniform cell sizes and a high product yield. At the same time, the expanded thermoplastic polyurethane bead provides a great sintering performance even at a relatively low vapor pressure, a molded foam product has a small deformation, a low dimensional shrinkage ratio relative to a mold, great dimensional stability, and an aesthetically appealing appearance.
FOAMABLE CROSSLINKABLE POLYMER COMPOSITION CONTAINING A FUNCTIONALIZED PARTICULATE BICARBONATE AS BLOWING AGENT AND METHOD FOR MANUFACTURING A CROSSLINKED FOAMED POLYMER THEREFROM
A foamable polymer composition comprising a crosslinkable polymer, a crosslinking peroxide compound, and a chemical blowing agent comprising a functionalized particulate bicarbonate containing at least one additive. The additive may be selected from the group consisting of a fatty acid, a rosin acid, any derivative thereof, and salts thereof; or any combinations thereof, such as comprising abietic acid, dihydroabietic acid, neoabietic acid, a rosin acid ester, linoleic acid, or mixtures thereof. The particulate bicarbonate may be preferably functionalized by spray-coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may further comprise 0.1-5 wt % silica. A process for manufacturing a foamed crosslinked polymer, such as EVA and/or crosslinked polyolefins, and a foamed crosslinked polymer obtained by such process.
Fungal textile materials and leather analogs
Textile compositions comprising at least one filamentous fungus are disclosed, as are methods for making and using such textile compositions. Embodiments of the textile compositions generally include at least one of a plasticizer, a polymer, and a crosslinker, in addition to the filamentous fungus. The disclosed textile compositions are particularly useful as analogs or substitutes for conventional textile compositions, including but not limited to leather.
METHOD AND COMPOSITION FOR REDUCING DUSTING FROM EXPOSED SURFACES OF STORED AND/OR DISPOSED BULK MATERIALS
A dust suppressant composition providing at least one water soluble plant-derived substance, and at least one synthetic polymeric resin. A method for dust suppression providing a dust suppressant composition, the composition having at least one water soluble plant-derived substance and at least one synthetic polymeric resin, and applying the dust suppressant composition to a plurality of exposed surfaces of bulk or granular materials.
AQUEOUS EMULSION AND ADHESIVE USING SAME
An aqueous emulsion may include an ethylene-vinyl alcohol copolymer (A) as a dispersant and a polymer (B) which contains an ethylenically unsaturated monomer unit as a dispersoid, wherein the ethylene-vinyl alcohol copolymer (A) has an ethylene unit content of 1 mol % or more and less than 20 mol %; and a crystallinity in water at 30° C. (Cw (30° C.)) and a crystallinity in water at 70° C. (Cw (70° C.)) as determined by pulse NMR satisfying formula (I). Such aqueous emulsions can form fewer aggregates and exhibit excellent water-resistant adhesiveness and excellent film formability.
Film Comprising Polylactic Acid Polymer Suitable for Graphic Articles
An article is described comprising a first film layer comprising polylactic acid polymer (semicrystalline polylactic acid polymer; amorphous polylactic acid polymer; or a mixture thereof); a second (e.g. polyvinyl acetate) polymer having a Tg of at least 25° C.; plasticizer. In some embodiment, the film layer further comprises inorganic pigment and/or hydrolysis stabilizer. In other embodiments, the film has a net melting endotherm, ΔH.sub.nm1, of less than 10 J/g. Also described are methods of making a graphic film.
PROCESS FOR MAKING A POWDER FOR BONDING TO A SUBSTRATE
A process includes combining a copolymer and mono- or di-valent metal ions to form a mixture, wherein the copolymer has from about 70 to about 98 wt % of an alpha-olefin moiety and about 2 to about 30 wt % of a (meth)acrylate moiety; reactively extruding the mixture to form a neutralized copolymer having a melt flow index of from about 5 to about 1500 g/10 min, wherein about 2 to about 50 wt % of the (meth)acrylate moiety is neutralized to form a mono- or di-valent metal salt present in an amount of from about 0.2 to about 20% based on the total (meth)acrylic acid content of the copolymer; and grinding the neutralized copolymer to form the powder having a Dv50 particle size of from about 10 to about 600 μm as determined using ASTM D5861, wherein the process is free of utilizing a liquid and/or a slurry.
OPEN CELL POLYMER FOAM COMPOSITION WITH TUNABLE TORTUOSITY AND METHOD OF MAKING THE SAME
A polymer composition including a crosslinkable thermoplastic matrix, a crosslinking agent, a blowing agent, and at least one cell opener is provided. A method of producing an open cell polymer foam from the polymer composition is also provided. The method includes heating a foamable precursor under positive pressure to a temperature greater than a decomposition temperature of the crosslinking agent and below a decomposition temperature of the chemical blowing agent to produce a primary foam. Then, the method includes heating the primary foam to a temperature greater than the decomposition temperature of the chemical blowing agent and then allowing the primary foam to cool to a temperature below a softening temperature of the crosslinkable thermoplastic polymer to form the open cell polymer foam. The produced open cell polymer foam has an open cell content of at least 80% immediately following the step of allowing the primary foam to cool.
COMPOSITIONS AND FILMS COMPRISING POLYLACTIC ACID POLYMER, POLYVINYL ACETATE POLYMER AND PLASTICIZER
A composition is described comprising semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; plasticizer; and optionally amorphous polylactic acid polymer. In another embodiment the composition further comprises nucleating agent. Also described are films comprising the composition as well as articles, such as a tape or sheet, comprising the film described herein and a layer of pressure sensitive adhesive disposed on the film.