Process for obtaining polyethylene with an MFI (190° C./2.16 kg) of at least 4 g/10 minutes and a melt strength (190° C.) of at least 8.0 cN, said process involving extrusion of low density polyethylene (LDPE) with an MFI of at least 5 g/10 minutes and a vinyl content of less than 0.25 terminal vinyl groups per 1000 C-atoms (measured with NMR in deuterated tetrachloroethane solution)—in the presence of 500-5,000 ppm, based on the weight of low density polyethylene, of an organic peroxide.

Branched and crosslinked polymeric fluid loss control agents and methods are provided that have at least one acrylamide-based monomer, at least one sulfonated anionic monomer, and at least one crosslinking monomer. The at least one acrylamide-based monomer and the at least one sulfonated anionic monomer are crosslinked. The branched and crosslinked polymeric fluid loss control agents have between 50 and 99 mol % of the at least one acrylamide-based monomer, between 1 and 30 mol % of the at least one sulfonated anionic monomer, and between 0.1 and 10 mol % of the at least one crosslinking monomer.

Curable adhesive compositions are provided that can be cured using ultraviolet or visible light radiation. These curable adhesive compositions, which contain a curable (meth)acrylate copolymer, have a creep compliance that is less than 5(10.sup.−4) inverse Pascals at 25° C., a creep compliance that is greater than 1(10.sup.−3) inverse Pascals at 70° C., and a shear storage modulus greater than 40 kiloPascals when measured at 25° C. at a frequency of 1 radian/second.

Provided is a water-absorbing agent that causes no or little fluctuation of feed rate when fed with use of a feeder. A water-absorbing agent containing a water-absorbing resin as a main component, the water-absorbing agent satisfying the following (a) and (b): (a) K-index is 70 or more; and (b) Moisture absorption blocking ratio, after 30 minutes of standing at a temperature of 25° C. and a relative humidity of 80% RH, is 70 weight % or less, the K-index being defined by the following equation: K-index=100−(−438+3.6×angle of repose+3.5×angle of difference+7.9×compressibility rate+290×bulk density (EDANA method)).

Provided is a water-absorbing agent having an excellent ability to absorb and retain liquid and an excellent liquid suction power. The water-absorbing agent contains a polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e): (a) a weight average particle diameter (D50) is 300 μm or more and less than 400 μm; (b) a proportion of particles with a particle diameter of 600 μm or more and less than 850 μm is less than 10 weight %; (c) an average gap radius is 100 μm or more and less than 180 μm; (d) a CRC is 28 g/g or more and less than 34 g/g; and (e) an AAP is 24 g/g or more.

Coated articles, methods and coating compositions containing (a) a crosslinkable carboxyl-functional acrylic polymer made by polymerizing monomers including acidic monomer, multi-ethylenically unsaturated monomer and optional styrene or substituted styrene, and (b) a nitrogen-containing carboxyl-reactive crosslinking agent such as a beta-hydroxyalkylamide or beta-hydroxyalkylurea compound. The coating composition is useful in coating metal substrates including interior or exterior surfaces of food or beverage cans. The cured coating compositions can exhibit both good flexibility and high Tg.

A method of preparing a block copolymer composition is provided. The method includes: adding an aromatic vinyl monomer and a compound represented by Chemical Formula 1 to a hydrocarbon-based solvent and performing stirring to prepare a first mixed solution; adding a polymerization initiator to the first mixed solution and performing polymerization to prepare a second mixed solution; adding a conjugated diene-based monomer to the second mixed solution and performing polymerization to prepare a third mixed solution; and adding a coupling agent to the third mixed solution to perform a coupling reaction, An asphalt composition including the block copolymer composition prepared therefrom, is also provided.

Provided are: a water-absorbing agent achieving, in a balanced manner, both good physical properties and a decrease in speed of coloration with lapse of time even if the water-absorbing agent has a high moisture absorbing speed due to having a large specific surface area; and an absorbent body having a low ratio of pulp and achieving, in a balanced manner, both good physical properties suitable for a thin disposable diaper and a decrease in speed of coloration with lapse of time. The absorbent body contains a hydrophilic base material and a water-absorbing agent which contains: surface-crosslinked water-absorbing resin particles having a non-uniformly pulverized shape; α-hydroxycarboxylic acid (salt); and an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent, a point plotted along an x-axis that represents an amount (x.sub.1 mol %) of α-hydroxycarboxylic acid (salt) extracted from the water-absorbing agent and along a y-axis that represents an amount (y.sub.1 mmol %) of an aminocarboxylic acid-based chelating agent and/or a phosphorus-based chelating agent extracted from the water-absorbing agent being within a range that satisfies a specific relational formula of x.sub.1 and y.sub.1, the water-absorbing agent having a moisture absorbing speed of 120 mg/g/hr or more at a temperature of 40±1° C. at a relative humidity of 75±1% RH.

Methods for the synthesis of methyl 2-fluoroacrylate (MFA) are provided. The methods include use of various hydrofluorination agents using a variety of starting materials and reaction schemes. The methyl 2-fluoroacrylate prepared by the methods described herein can further be used to prepare patiromer calcium sorbitex.

Provided are a binder for a secondary battery, a negative electrode including the same, and a secondary battery including the same. More particularly, the binder for a secondary battery including a crosslinked product of a copolymer with a silane-based crosslinking agent according to the present invention may have excellent thermal resistance and mechanical properties and effectively improve a binding force, and the negative electrode for a secondary battery and the secondary battery including the same may effectively suppress expansion of a negative electrode to improve charge/discharge cycle characteristics and performance of the secondary battery.