Patent classifications
A62D1/00
Compositions and uses of Z-1-chloro-2,3,3,3-tetrafluoroprop-1-ene
Disclosed is a mixture comprising the compound Z-1-chloro-2,3,3,3-tetrafluoroprop-1-ene and at least one additional compound selected from the group consisting of HFOs, HFCs, HFEs, CFCs, CO.sub.2, olefins, organic acids, alcohols, hydrocarbons, ethers, aldehydes, ketones, and others such as methyl formate, formic acid, trans-1,2 dichloroethylene, carbon dioxide, cis-HFO-1234ze+HFO-1225yez; mixtures of these plus water; mixtures of these plus CO.sub.2; mixtures of these trans 1,2-dichloroethylene (DCE); mixtures of these plus methyl formate; mixtures with cis-HFO-1234ze+CO.sub.2; mixtures with cis-HFO-1234ze+HFO-1225yez+CO.sub.2; mixtures with cis-HFO-1234ze+HFC-245fa; and azeotrope or azeotrope-like compositions. Also disclosed are methods of using the compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.
Compositions comprising 2,3-dichloro-1,1,1-trifluoropropane, 2-chloro-1,1,1-trifluoropropene, 2-chloro-1,1,1,2-tetrafluoropropane or 2,3,3,3-tetrafluoropropene
Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF═CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.
Liquid concentrate fire retardant compositions containing mixtures of ammonium phosphates
Described herein are liquid fire retardant concentrate compositions comprising mixtures of ammonium phosphate fire retardants. Specifically, liquid fire retardant concentrate compositions comprising one or more of monoammonium phosphate (MAP), diammonium phosphate (DAP), and ammonium polyphosphate (APP) are described herein. The ammonium phosphate fire retardant(s) is typically suspended and/or dissolved in a liquid, typically with the fire retardant(s) incorporated into the composition in powder, or granular form. In certain aspects of the present invention, the compositions provided may exhibit one or more advantages as compared to current liquid concentrate fire retardants, including enhanced strength (i.e., a higher proportion of fire retardant component per unit volume), reduced toxicity, and/or reduced corrosion.
METHODS FOR PRODUCING SOLVENTS DERIVED FROM 1-CHLORO-3, 3, 3-TRIFLUORO-PROPENE (1233ZD)
The production of solvents for applications such as heat transfer, cleaning, and degreasing, for example. In particular, the production of solvents derived from 1-chloro-3,3,3-trifluoro-propene, such as chloro and/or fluoro substituted alkanes and chloro and/or fluoro substituted trifluoropropenyl ethers.
Process for producing high-swellability polymer composites
The invention relates to a process for producing polymer composites suitable for absorbing and storing aqueous liquids, to the polymer composites obtainable by this process, and to the use of the polymer composites. The process comprises free-radical polymerization of a monomer composition M comprising 50 to 100% by weight, based on the total amount of monomers A and B, of at least one monomer A having one ethylenic double bond and at least one neutralizable acid group, 0 to 50% by weight of optionally one or more comonomers B which are different than the monomers A and have one ethylenic double bond, and 1 to 10% by weight, based on the total amount of monomers A and B, of at least one crosslinker C.
Process for producing high-swellability polymer composites
The invention relates to a process for producing polymer composites suitable for absorbing and storing aqueous liquids, to the polymer composites obtainable by this process, and to the use of the polymer composites. The process comprises free-radical polymerization of a monomer composition M comprising 50 to 100% by weight, based on the total amount of monomers A and B, of at least one monomer A having one ethylenic double bond and at least one neutralizable acid group, 0 to 50% by weight of optionally one or more comonomers B which are different than the monomers A and have one ethylenic double bond, and 1 to 10% by weight, based on the total amount of monomers A and B, of at least one crosslinker C.
Flame retardants
Methods and compositions pertaining to flame retardants using micronized rice husks are disclosed.
Methods and systems for suppressing pyrophoric metal fires
A method for suppressing a pyrophoric metal fire may include arranging a suppression system above a containment structure. The suppression system includes a first extinguishing agent. The containment structure is configured to contain and isolate a pyrophoric metal from ambient air. The suppression system is configured to activate upon a leak and ignition of the pyrophoric metal so as to release the first extinguishing agent to suppress the pyrophoric metal fire.
Compositions comprising a fluoroolefin
The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
Process for purifying (hydro)halocarbon compositions
A process for treating a composition comprising one or more desired (hydro)halocarbons and one or more undesired halogenated hydrocarbon containing impurities so as to reduce the concentration of at least one undesired halogenated hydrocarbon containing impurity, the process comprising contacting the composition with an adsorbent comprising a carbon molecular sieve.