Abstract: A polyester and a method for manufacturing polyester are provided. The polyester comprises one or more repeating units derived from polyols and one or more repeating units derived from polybasic acids and contains phosphorus and a metal element, wherein one or more repeating units derived from polyols include a repeating unit derived from tricyclodecane dimethanol, the weight ratio of the phosphorus to the metal element ranges from 0.05 to 5.00, and the metal element is selected from the group consisting of Ti, Sn, Sb, Ge, Mn, Zn, Ca, Co, Pb, Al, Zr, and combinations thereof.

Abstract: A method for electrolysis of water and a method for preparing a catalyst for electrolysis of water are provided. The method for electrolysis of water includes using a high entropy alloy as a catalyst. Further, the method for preparing a catalyst for electrolysis of water includes the steps of placing a substrate in an aqueous electrolyte containing a high entropy alloy precursor and performing an electroplating process on the substrate to form a high entropy alloy catalyst on the substrate.

Abstract: A method for electrolysis of water and a method for preparing a catalyst for electrolysis of water are provided. The method for electrolysis of water includes using a high entropy alloy as a catalyst. Further, the method for preparing a catalyst for electrolysis of water includes the steps of placing a substrate in an aqueous electrolyte containing a high entropy alloy precursor and performing an electroplating process on the substrate to form a high entropy alloy catalyst on the substrate.

Abstract: A polyester with ultra-high flowability and good stability over time is provided. The polyester can be polybutylene terephthalate (PBT) or another aliphatic polyester, whose intrinsic viscosity (IV) is less than 0.6 dL/g and a carboxylic end group (CEG) content is 15 meq/kg or less, and characterized by having a melt volume rate (MVR) of greater than 400 cm3/10 min at 250° C. A resin composition of this polyester is provided, which can be meltblown into microfibers of a uniform diameter and a concentrated diameter distribution, forming a fabric with a uniform small pore size.

Abstract: An allyl-containing resin is provided. The allyl-containing resin comprises a repeating unit comprising a structural unit represented by the following formula (I): wherein, R1 to R3 in formula (I) are as defined in the specification; the Fourier transform infrared spectrum of the allyl-containing resin has a signal intensity “a” from 1650 cm?1 to 1630 cm?1 and a signal intensity “b” from 1620 cm?1 to 1560 cm?1, and 0<a/b?1.20; and the quantitative 1H-NMR spectrum of the allyl-containing resin has a signal intensity “c” from 3.2 ppm to 6.2 ppm and a signal intensity “d” from 6.6 ppm to 7.4 ppm, and 0<c/d?1.20.

Abstract: The present disclosure provides a method for fabricating a heterogeneous nickel-based catalyst on an aluminum oxide support. The method includes a solution preparation step, a drop-cast step, a first calcining step, and a second calcining step. The solution preparation step is provided for preparing a precursor solution. The drop-cast step is provided for dropping the precursor on the support. The first calcining step is provided for obtaining an oxidation state catalyst. The second calcining step is provided for obtaining the heterogeneous nickel-based catalysts on aluminum oxide support.

Abstract: Laser weldable compositions are provided which in various examples include a tricyclodecane dimethanol-modified copolymer, a terephthalate-type polyester and an inorganic filler. Compared with compositions without the tricyclodecane dimethanol-modified copolymer, the compositions of the invention have improved, uniform laser transmittance, thereby welded products including the compositions have improved bonding strength and require stronger tensile strength to be torn apart.

Abstract: A method for electrolysis of water and a method for preparing a catalyst for electrolysis of water are provided. The method for electrolysis of water includes using a high entropy alloy as a catalyst. Further, the method for preparing a catalyst for electrolysis of water includes the steps of placing a substrate in an aqueous electrolyte containing a high entropy alloy precursor and performing an electroplating process on the substrate to form a high entropy alloy catalyst on the substrate.

Abstract: The present disclosure provides an Escherichia coli transformant and a method for producing itaconate using the Escherichia coli transformant.

Abstract: Provided is a melamine-formaldehyde resin composition. In a first aspect, the melamine-formaldehyde resin composition has at least one melamine oligomer with a mass-to-charge ratio (m/z) ranging from 393 to 692. Based on the total area of all chromatographic peaks in the melamine-formaldehyde resin composition, the sum of the areas of the chromatographic peaks with m/z of 393 to 692 ranges from 2% to 20%. In a second aspect, the melamine-formaldehyde resin composition comprises 2,4,6-tri[bis(methoxymethyl)amino]-1,3,5-triazine, and the area thereof ranges from 15% to 33% based on the total area of all chromatographic peaks in the melamine-formaldehyde resin composition. The melamine-formaldehyde resin composition of the present invention has superior freeze resistance and extended low-temperature storage life.

Abstract: Products of glycidyl ether of a mono or polyhydric phenol as well as methods to manufacture the same. In some instances, the product of glycidyl ether of a mono or polyhydric phenol has an epoxy equivalent weight (“EEW”) and a hydroxyl value (“HV”), wherein the epoxy equivalent weight multiplied by the hydroxyl value (EEWxHV) is a value from 1 to 10. A process for producing the product of glycidyl ether of a mono or polyhydric phenol typically includes reacting an epihalohydrin with a mono or polyhydric phenol in the presence of a catalyst to produce a halohydrin ether; and dehalogenating the halohydrin ether to form the product of glycidyl ether of a mono or polyhydric phenol.

Abstract: The present invention provides epoxy resin compounds comprising a high phosphorus and oxazolidone content, methods to prepare these epoxy resin compounds, curable compositions comprising these epoxy resins, and cured epoxy resin compounds by curing the curable epoxy resin compounds comprising a high phosphorus and oxazolidone content.

Abstract: Compositions containing Tricyclodecane Dimethanol (TCCDM) and at least a second component, wherein the composition is characterized in a gas chromatography (GC) analysis, wherein the TCDDM is eluted at a retention time ranging from 12.4 minutes to 13 minutes, the second component is eluted at a retention time ranging from 11.8 minutes to 12.4 minutes, and the ratio of the area of elution peaks indicating the second component compared to the area of the elution peaks of the TCCDM is between 0.001:1 and 0.04:1. Useful products of the composition include polymers and optical materials.

Abstract: Provided are an amino resin composition, a varnish, a coating layer, and a product. The amino resin composition comprises a repeating unit represented by the following Formula (I): A 13C-NMR spectrum of the amino resin composition has a first characteristic peak at 159 ppm to 161 ppm and a second characteristic peak at 70 ppm to 80 ppm. Based on the integral value of the first characteristic peak as 1, the integral value of the second characteristic peak is in the range from 0.01 to 0.25. Adopting the amino resin composition can accelerate the drying of the varnish and ensure the coating layer and the product have high hardness, high gloss and excellent color stability.

Abstract: A butanol expression cassette includes a butanol production related genes and a fermentation regulatory element. The fermentation regulatory element controls the expression of the butanol production related gene and locates upstream of the butanol production related gene. The fermentation regulatory element includes a promoter, a ribosome binding site and a transcription factor binding site of a fermentation gene. A fermentation in which the fermentation regulatory element involves includes an acetic acid fermentation, an alcohol fermentation, a succinic acid fermentation or a lactic acid fermentation, the butanol production related gene is not the fermentation gene or a gene of an upstream product of the fermentation in which the fermentation gene involves. The present invention provides a recombinant plasmid formed by cloning the butanol expression cassettes in the expression vector.

Abstract: A preparation method of a polyurethane resin including the following steps is provided. A liquid polyamine compound is placed in a continuous reaction system, and the liquid polyamine compound is circulated in the continuous reaction system. A solid bis(cyclic carbonate) and a solid catalyst are placed in the continuous reaction system to mix the solid bis(cyclic carbonate), solid catalyst, and liquid polyamine compound to form a heterogeneous mixture. The heterogeneous mixture is heated in the continuous reaction system in a microwave manner, such that the heterogeneous mixture reacts to form a polyurethane resin.

Abstract: The present invention provides an engineered cyanobacterium, comprising at least one plasmid selected from three novel pathways to produce acetate, which can convert atmospheric carbon dioxide as a raw material into acetate. The present invention also constructs the expression plasmid for three different transporters specific to acetate to be expressed in cyanobacteria, which comprises putative ABC transporter (AatA), succinate/acetate: proton symporter (SatP) and acetate/glycolate: cation symporter (ActP). Therefore, the engineered cyanobacteria of the present invention can produce 0.58 mg/L to 3.54 mg/L of acetate per hour.

Abstract: A carbon dioxide absorbent composition is disclosed. Based on 100 parts by weight of the carbon dioxide absorbent composition, the carbon dioxide absorbent composition includes 5 to 45 parts by weight of sodium 2-[(2-aminoethyl)amino]ethanesulfonate. Moreover, a method for capturing carbon dioxide using the carbon dioxide absorbent composition is disclosed.

Abstract: The present invention relates to a phosphinated poly(2,6-dimethy phenylene oxide)oligomer, specifically an unsaturated group-containing phosphinated poly(2,6-dimethy phenylene oxide)oligomer, and processes for producing the same. A thermoset produced from the unsaturated group-containing phosphinated poly(2,6-dimethy phenylene oxide)oligomers according to the present invention exhibits flame retardancy and has a low dielectric constant and dissipation factor and a high glass transition temperature.

Abstract: The present invention provides a photosensitive resin composition, comprising: (a) photo-polymerizable unsaturated compound, (b) hydroxyurethane compound, and (c) photoinitiator. The photosensitive resin composition can be used as photoresist coating for dry film photoresist to manufacture the electronic components, such as print circuit board and so on. Further, the (b) hydroxyurethane compound having [CC]/[NH2] between 0.5 and 0.9, which increases the resolution, adhesion, and stripping ability of photosensitive resin composition for dry film photoresist, and improves the effectiveness and the quality of dry film photoresist for manufacturing printed circuit board and other electric component.