The present invention relates to aqueous peptide-stabilized polyurethane dispersions that can be used in various applications including adhesives and cosmetics, as they are surfactant and solvent free and have low VOC emissions. As hybrid materials, they provide for a versatile system that can be finely tuned and combine the advantageous properties of polyurethane and peptide materials. Also encompassed are processes for their production including dispersing an NCO-terminated polyurethane prepolymer into a continuous aqueous phase comprising one or more peptides, thereby forming peptide-stabilized polyurethane particles, compositions containing them and their use in cosmetics and adhesives.

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.

A polyurethane dispersion PUD comprises at least one polyurethane P based on at least one polyisocyanate and at least one polyester polyol PES, wherein the polyester polyol PES is based on at least one polyhydric alcohol A and at least one dicarboxylic acid D, wherein at least one polyhydric alcohol A and/or at least one dicarboxylic acid D were at least partly derived from renewable raw materials.

Provided herein are surface treating compositions for imparting beneficial surface properties to substrates. The compositions can be prepared by reacting a bio-based polyol with an isocyanate group-containing compound and an ionogenic molecule. The compositions can be used to treat a variety of substrates to provide enhanced properties to a surface of the substrate. Also provided are methods for the chemical modification of triglycerides and fatty acids and use thereof in creating beneficial surface treating compositions.

The present invention provides a biocompatible and biodegradable elastomer, comprising a hard segment and a soft segment. The hard segment is formed by reacting diisocyanate and a chain extender; and the soft segment is comprising a biodegradable oligomer diol, wherein the biodegradable oligomer diol is selected from the group consisting of polycaprolactone diol, polyethylene butylene adipate diol (PEBA diol), poly-L-lactic acid diol (PLLA diol), polylactic acid diol and any combination thereof. The biocompatible and biodegradable elastomer of present invention can be used to produce vascular graft, cell carrier, drug carrier or gene carrier.

Aqueous coating compositions that include polymers having one or more of the following acetoacetyl-functional groups: ##STR00001##
wherein R.sup.1 is a C1 to C22 alkylene group and R.sup.2 is a C1 to C22 alkyl group.

The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

An aqueous dispersion containing at least one copolymer, the copolymer being preparable by initially charging an aqueous dispersion of at least one polyurethane, and then polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane, where a water-soluble initiator is used, the metered addition of the olefinically unsaturated monomers is effected in such a way that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers, in the reaction solution is not exceeded over the entire duration of the reaction, and the mixture of the olefinically unsaturated monomers contains at least one polyolefinically unsaturated monomer.

A method for preparing a high-temperature self-crosslinking aqueous polyurethane dispersion. By using isocyanate (NCO) blocking agent to block part of the NCO, and using the hydroxyalkyl ethylenediamine chain extender in the post-chain extension stage to introduce hydroxyl groups, the polymer macromolecular structure containing both blocked NCO groups and hydroxyl groups can be prepared. The aqueous polyurethane dispersion does not need to mix with other waterborne resins and crosslinkers when applied. A sufficient cross-linking reaction is performed between the NCO released and hydroxyl groups on the polymer macromolecular chain to form a high-density cross-linked structure when curing at 100-150° C. for 20-30 min, thus obtaining a high-performance waterborne coating that can be used in the form of one-pack.

An organosilicon-modified polyurethane resin and a method for producing the same are provided. The organosilicon-modified polyurethane resin includes organosilicon ingredients obtained by chemically bonding a first organosilicon chain extender having a chemical structure of formula (I) and a second organosilicon chain extender having a chemical structure of formula (II) into a molecular structure of a polyurethane resin during a polymerization reaction:

##STR00001##

in which R.sub.11 is a substituent of —CH.sub.2CH.sub.2— or —CH.sub.2CH(CH.sub.3)—, n.sub.1 is a positive integer between 0 and 50, m.sub.1 is a positive integer between 0 and 50, and x.sub.1 is a positive integer between 4 and 100;

##STR00002##

in which R.sub.21 is a substituent of —CH.sub.3 or —CH.sub.2CH.sub.3, R.sub.22 is a substituent of —CH.sub.2CH.sub.2CH.sub.2—, and R.sub.23 is a substituent of —CH.sub.2CH.sub.2— or —CH.sub.2CH(CH.sub.3)—, n.sub.2 is a positive integer between 6 and 130, and m.sub.2 is a positive integer between 4 and 50.