The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.

Methods of manufacturing pre-impregnated composite fiber materials, and methods for determining the suitability of a pre-impregnated composite fiber material for incorporation into a composite structure.

Provided is a method for producing a thermosetting aqueous binder comprising a polycarboxylic acid and an amine-based compound serving as a crosslinking agent for the polycarboxylic acid and having two or more per molecule of at least one from between an amino group and an imino group, the method comprising: a blocking step for blocking at least a part of the carboxy groups of the polycarboxylic acid with a volatile basic compound to obtain a blocked polycarboxylic acid; and a mixing step for mixing the blocked polycarboxylic acid and the amine-based compound. According to such an invention, it is possible to reduce a precipitate and a viscous substance generated during production to a level sufficient for practical use.

A reinforcing fiber prepreg has a thermosetting resin as a matrix, wherein a part of the reinforcing fiber prepreg is a low-adhesion region that has been treated to reduce adhesiveness, and the resin reaction rate of the low-adhesion region is preferably 0.1%-20%; a tape and a wound body is obtained from the reinforcing fiber prepreg; and methods produce the reinforcing fiber prepreg and reinforcing fiber prepreg tape. This makes it possible to provide a reinforcing fiber prepreg tape of which the adhesiveness is appropriately reduced to enable suitable application to conveyance for AFP while using a simple technology.

A method of manufacturing a flexible intrinsically antimicrobial absorbent porosic composite controlling for an effective pore size using removable pore-forming substances and physically incorporated, non-leaching antimicrobials. A flexible intrinsically antimicrobial absorbent porosic composite controlled for an effective pore size composited physically incorporated, high-surface area, non-leaching antimicrobials, optionally in which the physically incorporated non-leaching antimicrobial exposes nanopillars on its surface to enhance antimicrobial activity. A kit that enhances the effectiveness of the intrinsically antimicrobial absorbent porosic composite by storing the composite within an antimicrobial container.

Flexible substrates including a polymer selected from a thermoplastic polymer, a thermoset polymer, and/or a polymer blend, and ferroelectric perovskite-type oxide particles dispersed in the polymer, where the ferroelectric perovskite-type oxide has a dielectric constant that varies with applied voltage. The flexible substrates can be used in tunable electronics.

Provided is a process for producing isolated graphene sheets from a supply of coke or coal powder containing therein domains of hexagonal carbon atoms and/or hexagonal carbon atomic interlayers. The process comprises: (a) subjecting the supply of coke or coal powder to a supercritical fluid at a first temperature and a first pressure for a first period of time in a pressure vessel and then (b) rapidly depressurizing the supercritical fluid at a fluid release rate sufficient for effecting exfoliation and separation of the coke or coal powder to produce isolated graphene sheets, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, mesophase coke, synthetic coke, leonardite, anthracite, lignite coal, bituminous coal, or natural coal mineral powder, or a combination thereof.

The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.

A pultruded material includes a thermosetting resin, and a reinforced fibers impregnated with the thermosetting resin. The thermosetting resin includes a solid resin that contains a fire-resistant resin having a median oxygen index of equal to or higher than, a long-chain fatty acid ester that has a median number of carbons per molecule within a range equal to or more than 3 and equal to or less than 1000, and that has a median flash point within a range equal to or higher than 150 degrees Celsius, and an additive that has a median BET specific surface area within a range equal to or more than 150 m.sup.2/g and equal to or less than 250 m.sup.2/g, and that has a median primary particle diameter within a range equal to or more than 5 nanometers and equal to or smaller than 20 nanometers.

In one embodiment, a sized carbon fiber tow can comprise: an unsized carbon fiber tow sized with a sizing agent; wherein the sized carbon fiber tow has: a) a fuzz count of less than 8 counts/20 meters; b) a sizing content of at least 0.4 wt % of the unsized carbon fiber tow; and c) drapability less than 5.5 cm. A method of preparing a sized carbon fiber tow, comprising: spreading an unsized carbon fiber tow having a surface energy of at least 70 mJ/m.sup.2, over a spreader unit at a throughput line speed of at least 3 meter/minute and forming spread carbon fibers; sizing the spread carbon fibers in a sizing bath at a throughput line speed of at least 3 meter/minute and forming sized carbon fibers; and drying the sized carbon fibers and forming the sized carbon fiber tow.