The present disclosure relates to methods for making polyols, esters, and surfactants. Generally, a carboxyl-containing molecule is reacted with an epoxide-containing molecule to obtain a hydroxylated ester. If multiple epoxide groups are present in the epoxide-containing molecule, the resulting molecule can also be considered a polyol. The hydroxyl groups can be further ethoxylated to obtain a surfactant/stabilizer.

Photoresponsive polymers that comprise a unit derived from an amide functional diol compound that includes a coumarin group are provided. Advantageously, the photoresponsive groups of the photoresponsive polymers may be used to control the viscosity of the photoresponsive polymer. The photoresponsize polymers may also include units derived from amide functional diol compounds with include a fatty acid chain or a polyethylene glycol chain. The photoresponsive polymers may be used for 3d printing. When an adhesive group is added to a photoresponsive polymer they may be used as an adhesive. Adhesive groups include catechol groups.

The present invention relates to a conjugate of albumin and a temperature- and pH-sensitive multi-block copolymer, a method of preparation thereof, and a sustained-release drug carrier comprising the same, and more specifically, to a conjugate in which polyethylene glycol-poly(amino urethane) (PEG-PAU) or polyethylene glycol-poly(amino ester urethane) (PEG-PAEU) multi-block copolymer is conjugated to albumin, a method of preparing the same, and a long-term sustained-release drug carrier comprising the same, capable of reducing an initial burst release of drugs and improving an affinity to drugs.

The present invention relates to a composition for topically delivering SDF-1 into the brain, in which the composition comprises a dual ionic pH-sensitive copolymer and a nerve regeneration and protective factor. In the present invention, when a dual ionic pH-sensitive copolymer containing SDF-1 as a nerve regeneration and protective factor is applied to a patient suffering from ischemic stroke as a drug carrier, it induces the effective delivery of the treatment factor to a topical lesion site, and moreover, the risk factors for adverse effects may be cancelled out, so that it can be effectively used as a novel therapeutic agent for ischemic brain diseases.

Novel articles of manufacture are described based on a combination of an adjunct material and microcapsules made by an improved process. The improved microcapsules are chitosan urea and encapsulate a benefit agent. The process comprises combining an adjunct material formed of microcapsules formed by a water phase comprising hydrolyzing chitosan in an acidic medium at a pH of 6.5 or less for an extended period and combining with a polyisocyanate. The reaction product of the hydrolyzed chitosan and polyisocyanate yields a microcapsule having improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

The present disclosure relates to polyurethane comprising a reaction product of a reactive mixture including a polyester polyol, a diol chain extender, a diisocyanate; and a reactive, tertiary amine. The present disclosure further provides polishing layers and polishing pads fabricated therefrom. Additionally, the present disclosure provides polishing systems and polishing methods employing said polishing layers and polishing pads.

The present invention relates to curable polyurethane polymers made from renewable materials and having polymerization accelerator groups built into the polymer. In particular hydroxylated oleaginous materials derived from plant oils, such as soybean oil, are used. These renewable materials may be formed into curable polyurethane polymers having different chemical functionalities and cure mechanisms.

An electrophotographic member includes an electro-conductive substrate, and an elastic layer as a surface layer, the elastic layer constituted by a single-layer, wherein the elastic layer includes a first resin, a second resin and an anion, the first resin is a crosslinked urethane resin, and the crosslinked urethane resin is a resin having a specific cationic structure in the molecule, the second resin is at least one of a crosslinked acrylic resin having an ether bond and a crosslinked epoxy resin having an ether bond, and in a first area of the elastic layer, the first are being from an outer surface of the elastic layer to a depth of 0.1 μm, the first resin and the second resin form an interpenetrating polymer network structure.

A modification method of a polyurethane, including the steps of: preparing a polyurethane having an ethylenically unsaturated bond; and treating the polyurethane with a liquid containing a compound having a conjugated double bond, or a modification method of a polyurethane, including the steps of: preparing a polyurethane having a conjugated double bond; and treating the polyurethane with a liquid containing a compound having an ethylenically unsaturated bond is used.

An additive formulation for lignocellulosic composites comprising a) a first aqueous emulsion comprising i) a component selected from the group consisting of petroleum wax, a triglyceride, and combinations thereof; and ii) a first anionic emulsifier; and b) a second aqueous emulsion comprising: i) a reaction product of I) a derivative of a polyol selected from the group consisting of saccharides, sugar alcohols, sugar acids, gluconic acids, and gluconic acid lactones; and II) a polyisocyanate; and ii) an emulsifier selected from the group consisting of a second anionic emulsifier, a non-ionic emulsifier, and mixtures thereof, is disclosed.