The present invention relates to compositions thermally curable on demand by red to near infrared irradiation, method of using same for thermal amplification of free radical polymerizations, and articles obtained by such method. The invention also relates to the use of a heat-generating dye in association with a thermal initiator for controlling the onset of thermal free radical polymerization.

A polyurethane composition comprising an aldehyde scavenger, a polyurethane product, and a process for making polyurethane foam are disclosed. The scavenger compounds can reduce, if not eliminate, the emissions of aldehydes from polyurethane foams. The scavenger compounds comprise at least one member selected from the group consisting of: phenol or substituted phenol, a 1,3-dicarbonyl compound, a polyamine bearing a 1,3-propanediamino function, melamine, a 1,2-diaminocycloalkane, an ammonium salt; a compound containing the bisulfite anion, titanium dioxide and aminosiloxane.

A biomass composition contains powder of parenchyma cells of a plant containing a saccharide and a multivalent carboxylic acid.

Plastic-like compositions having ultra-low contents of petroleum derived materials are provided. The materials comprise up to about 80% by weight of an inorganic salt having an average particle size between about 0.001 and about 300 gm and a plastic binder. The compositions have a low propensity to ignite or smoke in the presence of heat or flame.

Plastic-like compositions having ultra-low contents of petroleum derived materials are provided. The materials comprise up to about 80% by weight of an inorganic salt having an average particle size between about 0.001 and about 300 m and a plastic binder. The compositions have a low propensity to ignite or smoke in the presence of heat or flame.

Polymer compositions comprising: one or more polyacrylamide powders, one or more dispersants, one or more alkali metal or ammonium salts, fumed silica and water. The polymer composition offer improved stability over comparable polymer composition without fumed silica and alkali metal or ammonium salts. Also disclosed are methods of preparing the polymer compositions, treatment fluids comprising the polymer compositions, and methods of treating a portion of a subterranean formation with the treatment fluids.

A method of producing a methacrylate block copolymer includes operations of (a) preparing a polymer solution comprising a methacrylate polymer block by polymerizing a methacrylate monomer using a polymerization initiator and a reversible addition-fragmentation chain transfer (RAFT) agent in the presence of water or an organic solvent; (b) preparing a polymer solution comprising an acrylate polymer block-containing methacrylate diblock copolymer by adding an acrylate monomer and a styrene monomer to the polymer solution prepared in operation (a); (c) preparing a polymer solution comprising a methacrylate polymer block-containing methacrylate triblock copolymer by adding a methacrylate monomer to the polymer solution prepared in operation (b); and (d) collecting a polymer prepared after operations (b) and (c) and removing the RAFT agent present at a terminal of the polymer by using an amine-based organic material.

Disclosed herein are hydrophobic vinylamine-containing polymers useful as papermaking performance additives for enhancing paper softness with little or no negative effect on paper dry strength properties. The hydrophobic vinylamine-containing polymers are produced by incorporating hydrophobic functional property into primary amine moiety of the vinylamine-containing polymers via reactions with reactive hydrophobes. The hydrophobically modified vinylamine-containing polymers can be further used as base polymers for polymerization with a vinyl monomer by free radical initiated polymerization. The compositions of those hydrophobic vinylamine-containing polymers have shown improved softness, reduced coefficient friction to paper products while maintained or improved dry strength properties of the paper products.

A pH sensitive water-absorbent resin suitable for oil well cement slurry and an application thereof are provided. The pH sensitive water-absorbent resin includes distilled water, a monomer, a mixed auxiliary agent, a crosslinking agent and an initiator, the amount of the monomer is 30% to 100% of the mass of the distilled water, the amount of the mixed auxiliary agent is 16% to 67% of the mass of the monomer, the amount of the crosslinking agent is 0.2% to 1% of the mass of the monomer, and the amount of the initiator is 0.4 to 1% of the mass of the monomer.

The present invention discloses a PBAT resin composition comprising following components: (a) poly(butyleneadipate-co-terephthalate); (b) iron element; wherein, based on a total weight of the PBAT resin composition, a weight content of the iron element is 1 ppm-500 ppm. By adding iron-containing compounds into the composition and controlling the content of the iron element in a range of 1 ppm-500 ppm in the composition, a speed of reaction of aromatic structure in the PBAT resin under a hot and humid condition can be postponed, so that after the prepared PBAT resin composition is aged in boiling water for 24 hours and 48 hours, a variation of b-value is less than 2. The PBAT resin composition has obviously improved color stability in resistance to boiling water aging.