Patent classifications
C08G65/02
Heat-curable fluoropolyether-based adhesive composition and electric/electronic component
Provided are a heat-curable fluoropolyether-based adhesive composition capable of being cured and adhering to various kinds of base materials made of, for example, a metal, ceramic and/or plastic in a short period of time; and an electric/electronic component employing the same. The composition is a heat-curable fluoropolyether-based adhesive composition having, as an adhesion imparting agent, an alicyclic epoxy group-containing and fluorine-containing organohydrogensiloxane having in one molecule: a monovalent perfluoroalkyl or perfluorooxyalkyl group(s), or a divalent perfluoroalkylene or perfluorooxyalkylene group(s); and at least one silicon atom-bonded hydrogen atom (SiH group).
Oil recovery aid
Compositions for increasing corn oil recovery and embodiments of methods for using the composition for corn oil separation are described. The composition(s) incorporate an admixture that includes a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, or a mixture thereof. The methods include admixing the compositions with a process stream for, for example, the extraction of oil from milled corn and residues from a fermentation step, including stillage (e.g., thin stillage or mid stillage), distiller's wet grain, distiller's dry grain and distiller's dry grains with solubles.
Oil recovery aid
Compositions for increasing corn oil recovery and embodiments of methods for using the composition for corn oil separation are described. The composition(s) incorporate an admixture that includes a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, or a mixture thereof. The methods include admixing the compositions with a process stream for, for example, the extraction of oil from milled corn and residues from a fermentation step, including stillage (e.g., thin stillage or mid stillage), distiller's wet grain, distiller's dry grain and distiller's dry grains with solubles.
PROCESS FOR PREPARING AN AQUEOUS DISPERSION OF MULTISTAGE POLYMER PARTICLES
The present invention relates to a process for preparing an aqueous dispersion of neutralized multistage polymer particles comprising the steps of:
1) contacting under emulsion polymerization conditions a) a aqueous dispersion of first polymer particles comprising structural units of a carboxylic acid monomer, and structural units of a nonionic monomer with b) first monomers comprising styrene or methyl methacrylate or a combination thereof, and a carboxylic acid monomer; to form an aqueous dispersion of 2-stage polymer particles; then
2) contacting under emulsion polymerization conditions the aqueous dispersion of first multistage polymer particles with second monomers comprising a) methyl methacrylate; b) n-butyl acrylate, 2-ethylhexyl acrylate, ethyl acrylate, or n-butyl methacrylate, or a combination thereof; c) a carboxylic acid monomer; and d) less than 20 weight percent styrene, to form an unneutralized aqueous dispersion of 3-stage polymer particles; then
3) neutralizing the unneutralized aqueous dispersion of 3-stage polymer particles with a base to form an aqueous dispersion of neutralized 3-stage polymer particles, wherein the first and second monomers form a shell having a calculated T.sub.g of less than 50 C.
The process of the present invention is useful in preparing a composition that is useful as an open time additive in coatings formulations.
Method for fabricating polyols
A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.
Method for fabricating polyols
A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.
Method for cyclically preparing polyether polyol by using DMC catalyst
A method for preparing a polyether polyol in a continuous reaction cycle is described. In the method, a low molecular-weight alcohol is polymerized with an alkylene oxide to obtain a low molecular-weight polymer. The low molecular-weight polymer is used as an initiator to react with the alkylene oxide and the low molecular-weight alcohol in the presence of a DMC catalyst and an acid promoter to obtain an intermediate-target polymer. A portion of the intermediate-target polymer is used for producing the target polymer, and the other portion is recycled for reproduction of the intermediate-target polymer. No initiator prepared with a base catalyst is used, and thus the loss of material and the discharge of residue and waste water are reduced. The DMC concentration is kept constant in the target polymer during the production such that the dewatering time and induction time are greatly reduced.
Method for cyclically preparing polyether polyol by using DMC catalyst
A method for preparing a polyether polyol in a continuous reaction cycle is described. In the method, a low molecular-weight alcohol is polymerized with an alkylene oxide to obtain a low molecular-weight polymer. The low molecular-weight polymer is used as an initiator to react with the alkylene oxide and the low molecular-weight alcohol in the presence of a DMC catalyst and an acid promoter to obtain an intermediate-target polymer. A portion of the intermediate-target polymer is used for producing the target polymer, and the other portion is recycled for reproduction of the intermediate-target polymer. No initiator prepared with a base catalyst is used, and thus the loss of material and the discharge of residue and waste water are reduced. The DMC concentration is kept constant in the target polymer during the production such that the dewatering time and induction time are greatly reduced.
HIGH-ACTIVITY DOUBLE-METAL-CYANIDE CATALYST, METHOD FOR FABRICATING THE SAME, AND APPLICATIONS OF THE SAME
A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized polymer. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.
METHOD FOR FABRICATING A HIGH-ACTIVITY DOUBLE-METAL-CYANIDE CATALYST
A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized polymer. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.