Disclosed are a dynamic non-wicking PU foam and preparation and application thereof The PU foam is prepared from polyether polyol, toluene-2,4-diisocyanate, non-wicking additive and auxiliary agent. The dynamic non-wicking additive is composed of carboxylic acids, amines and alkyl alcohols in any proportion. The auxiliary agent is composed of silicone surfactant, amine promoter, tin catalyst, pigment and water. The dynamic non-wicking PU foam has a high stability and an extremely non-wicking effect. The shoes made of the dynamic non-wicking PU foam also have extremely good dynamic non-wicking and waterproof effects, thus ensuring both comfort and stability of quality.

The present invention relates to a crosslinkable composition comprising a polyol, a polyisocyanate crosslinker, a catalyst for catalysing the reaction between OH groups of said polyol and NCO groups of said crosslinker, a tertiary acid of formula RRRCCOOH (I), wherein each R, R and R group, independently, is an alkyl, alkenyl, aryl or aralkyl group containing at least one carbon atom, with the proviso that two or three of the R, R and R groups can be linked to form a ring structure and wherein the R, R and/or R groups can be substituted, and optionally, a complexing agent containing at least one SH group, as well as its use for making coatings having improved application properties.

A compound for imparting water repellency and optionally stain release to substrates wherein the compound is prepared by (i) reacting (a) at least one isocyanate group-containing compound selected from isocyanate, diisocyanate, polyisocyanate, or mixture thereof, and (b) at least one isocyanate-reactive compound selected from formula (Ia), (Ib), or (Ic): ##STR00001##

A compound for imparting water repellency and optionally stain release to substrates wherein the compound is prepared by reacting (a) at least one isocyanate group-containing compound, (b) at least one isocyanate-reactive compound and (c) at least one fluorinated isocyanate-reactive compound.

Disclosed is a one component, liquid, moisture curable polyurethane adhesive composition comprising the reaction products of a mixture including at least one polyol with an excess of one or more polyisocyanates and an acid component. In one embodiment some or all of the acid component is applied separately from the adhesive composition. The adhesive composition has enhanced bond strength to metals such as aluminum compared to currently available adhesives. The composition finds special use in panel lamination applications.

The invention relates to a process for producing a ring-opening polymerization product by reacting at least one polyisocyanate and 2-oxo-1,3-dioxolane-4-carboxylic acid and subjecting the reaction product to a temperature within the range of from about 40 to about 150 C. in the presence of a catalytic amount of at least one non-nucleophilic base. The obtained polymerization product may be present as a foam and is suitable as binder, insulation material, sealant or coating and in the production of mattresses or wound pads.

A photocurable resin composition according to the present invention contains an anionic-group-containing photosensitive resin comprising a photosensitive urethane resin, a photopolymerization initiator and a thermal curing agent, wherein the photosensitive urethane resin is produced by reacting a raw material mixture containing (A) a polyol having at least an ester bond and also having an unsaturated bond at least in the main chain thereof, (B) a compound having at least one active-hydrogen-containing group and at least one anionic group in the molecule thereof, (C) a polyisocyanate and (D) a compound having at least one active-hydrogen-containing group and an unsaturated bond group in the molecule thereof, and the photosensitive urethane resin has an ester bond and an unsaturated bond in the main chain in the same molecule, wherein at least one of a side chain and a terminal has an anionic group and a side chain has an unsaturated bond group.

Provided herein is a two-component adhesive composition showing excellent adhesive strength after heat and humidity exposure.

Provided herein is a two-component adhesive composition showing excellent adhesive strength after heat and humidity exposure.

The present invention provides a cross-linking non-fluoro hydrophobic aqueous polyurethane dispersion, which is produced by selecting a compound comprising alcohols, amines, acids, saturated or unsaturated (double-bonded or epoxidized) aliphatic long chain carbon-carbon groups or polydimethylsiloxane comprising alcohol groups, amines, oxosilane to be reacted with IPDI to obtain a PU prepolymer; adding a compound having tertiary amines to neutralize the carboxylic acid of PU prepolymer and adding water to disperse the PU prepolymer; and adding a ambient temperature cross-linking agent to obtain a cross-linking hydrophobic aqueous PU dispersion of the present invention. The hydrophobic aqueous-based PU resin has no fluorine which is friendly to the environment, and may further self cross-links on its applications on fabric, paper, wood, glass and metal surfaces, respectively on drying at ambient temperature which is energy saving process. Its cross-linking reaction of this hydrophobic PU system that will achieve a long-lasting water repellent surface treatment.