This invention generally provides composition for making a polyurethane foam with reduced aldehyde emission and more specially to composition useful in means of transport such as interior part of cars, wherein composition is comprising: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; and (c) a compound of the formula (I) or (II), wherein the compound (c) is present by weight percentage in the composition in an amount ranging from about 0.001 to about 10, preferably from about 0.01 to about 5, and more preferably from about 0.05 to about 2 based on the total weight of the composition. The compositions can reduce aldehyde emission, especially acetaldehyde emission in the PU foam and has no obvious influence on the mechanic properties of the foam.

A composition for application to a substrate is provided. The composition comprises a base component and an activator component. The base component comprises hydroxyl functional prepolymers and the activator comprises isocyanate prepolymers. The composition further comprises an amount of carbon fibre. The hydroxyl functional prepolymers are formulated to polymerise with the isocyanate prepolymers to form a polymer containing carbon fibre.

The present disclosure relates to a method of making polyurethane foam, the method comprising providing a polyol mixture comprising polyether polyol and unmodified vegetable oil having a hydroxyl number of less than 10; and reacting isocyanate with the polyol mixture to form a polyurethane foam, wherein the unmodified vegetable oil does not react and does not form part of the polyurethane foam. The present disclosure also relates to polyurethane formed by the method and polyurethane compositions.

The present invention discloses a 3-aryl-benzofuranone compound in which R.sub.1-R.sub.6, in the formula are mutually independent H or C.sub.1-C.sub.20 alkyls, and R.sub.7 is C.sub.7-C.sub.20 alkyl or C.sub.7-C.sub.20 mixed alkyl. The present invention also discloses a composition of 3-aryl-benzofuranone compound and the preparation method. The 3-aryl-benzofuranone compound and the composition thereof has the superiority in application due to the characteristics of less proneness to volatilize, less proneness to be extracted, higher resistance to migration and less proneness to bloom and precipitate on the surface of organic materials, and with a wide range of application, it is effective during the application.

A rigid polyurethane foam which is a polymerization product of a composition including a concentrated acid hydrolytic lignin, a polyol, and an isocyanate, and a method of preparing the rigid polyurethane foam.

The present disclosure relates to sulfonic acid esters for use as additives in a polyurethane formulation. The polyurethane formulation further includes a compound containing an isocyanate functional group, an active hydrogen-containing compound and a reactive amine catalyst.

A liquid formulation including a polyol, a polymeric plasticizer, and a scavenger of volatile aldehydes, such as acetaldehyde and formaldehyde, where the scavenger is selected from the group of compounds as-recited herein. Furthermore, a method for preparing the liquid formulation is related and a method for preparing a polyurethane composition, characterized by a reduced content of free aldehydes, the method including the step of adding the liquid formulation according to the reagents of the polyurethane composition.

A composition for producing a fiber-reinforced polyurethane composite product including: (I) a reactive mixture of: (a) at least one polyisocyanate; (b) at least one polyol, and (c) at least one tin (IV)-based catalyst; and (II) at least one fibrous material; and a fiber-reinforced polyurethane composite product produced from the above composition.

Low hydroxyl value dibenzoate plasticizer for use in a reactive polyurethane composition, including but not limited to thermoplastic and thermoset polyurethanes, wherein the plasticizer is particularly useful in TPU's, a reactive polyurethane adhesive or sealant, or a tastable polyurethane article and achieves comparable or improved properties, including without limitation compatibility, color, exudation, optical properties, MVTR, hardness, tensile strength, tear strength, rebound, compression set, and solvent swell, when compared with that achieved with traditional plasticizers, including other benzoate esters, used in polyurethane compositions.

This invention generally provides composition for making a polyurethane foam with reduced aldehyde emission and more specially to composition useful in means of transport such as interior part of cars, wherein composition is comprising: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; and (c) a compound of the formula (I) or (II), wherein the compound (c) is present by weight percentage in the composition in an amount ranging from about 0.001 to about 10, preferably from about 0.01 to about 5, and more preferably from about 0.05 to about 2 based on the total weight of the composition. The compositions can reduce aldehyde emission, especially acetaldehyde emission in the PU foam and has no obvious influence on the mechanic properties of the foam.