An object of the present invention is to provide a resin which can be used as an aqueous binder and has sufficient binding properties.

The present invention is a resin composition containing: (a) a resin comprising a polymer having a structure represented by any one of the following general formulae (1) to (3) and/or a copolymer having the structure; and

(b) a basic compound

##STR00001##

(in the above general formula (1), R.sup.1 represents a C.sub.4-C.sub.30 organic group having a valence of two to six, R.sup.2 represents a divalent C.sub.4-C.sub.30 organic group, X represents a sulfonic group, hydroxy group, or carboxy group, p represents an integer of 1 to 4, and n is within the range from 2 to 100,000);

##STR00002##

(in the above general formula (2), R.sup.3 represents a C.sub.4-C.sub.30 organic group having a valence of two to six, R.sup.4 represents a divalent C.sub.4-C.sub.30 organic group, Y represents a sulfonic group, hydroxy group, or carboxy group, q represents an integer of 1 to 4, and m is within the range from 2 to 100,000);

##STR00003##

(in the above general formula (3), R.sup.5 represents a C.sub.4-C.sub.30 organic group having a valence of two to six, R.sup.6 represents a divalent C.sub.4-C.sub.30 organic group, Z represents a sulfonic group, hydroxy group, or carboxy group, r represents an integer of 1 to 4, and l is within the range from 2 to 100,000).

Provided is a positive type planographic printing plate precursor including: a support; and an image recording layer provided on the support, in which the image recording layer contains: a phenol compound containing a phenolic hydroxyl group and a substituent A represented by CH.sub.2OR in a molecule thereof, and having a molecular weight of from 200 to 2,000; a polymer having at least one selected from the group consisting of a urea bond and a urethane bond in a main chain thereof; and an infrared absorbent.

The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

Nanoporous three-dimensional networks of polyurethane particles, e.g., polyurethane aerogels, and methods of preparation are presented herein. Such nanoporous networks may include polyurethane particles made up of linked polyisocyanate and polyol monomers. In some cases, greater than about 95% of the linkages between the polyisocyanate monomers and the polyol monomers are urethane linkages. To prepare such networks, a mixture including polyisocyanate monomers (e.g., diisocyanates, triisocyanates), polyol monomers (diols, triols), and a solvent is provided. The polyisocyanate and polyol monomers may be aliphatic or aromatic. A polyurethane catalyst is added to the mixture causing formation of linkages between the polyisocyanate monomers and the polyol monomers. Phase separation of particles from the reaction medium can be controlled to enable formation of polyurethane networks with desirable nanomorphologies, specific surface area, and mechanical properties. Various properties of such networks of polyurethane particles (e.g., strength, stiffness, flexibility, thermal conductivity) may be tailored depending on which monomers are provided in the reaction.

The present disclosure relates to two-part polyurethane coatings having excellent erosion resistance and comprising a compound having a fluorinated segment. Additionally, these two-part polyurethane coatings can be cured under high relative humidity conditions. The present disclosure also relates to articles coated with those two-part polyurethane coatings and to methods of reducing erosion in an article, among other embodiments.

A radiation curable polyurethane-based binder dispersion includes water and a radiation curable polyurethane dispersed in the water. The polyurethane is formed from: a polyisocyanate; a polyol having a chain with two hydroxyl functional groups at one end of the chain and no hydroxyl groups at an opposed end of the chain, and having a number average molecular weight ranging from about 500 to about 5,000; an acrylate or methacrylate, the acrylate or methacrylate having at least one hydroxyl functional group and having an acrylate functional group or a methacrylate functional group; an alcohol or a diol or an amine having a number average molecular weight less than 600; and a sulfonate or sulfonic acid having one or two amino functional groups.

A radiation curable polyurethane-based binder dispersion includes water and a radiation curable polyurethane dispersed in the water. The polyurethane is formed from: a polyisocyanate; a polyol having a chain with two hydroxyl functional groups at one end of the chain and no hydroxyl groups at an opposed end of the chain, and having a number average molecular weight ranging from about 500 to about 5,000; an acrylate or methacrylate, the acrylate or methacrylate having at least one hydroxyl functional group and having an acrylate functional group or a methacrylate functional group; an alcohol or a diol or an amine having a number average molecular weight less than 600; and a sulfonate or sulfonic acid having one or two amino functional groups.

The present disclosure relates to two-part polyurethane coatings having excellent erosion resistance and comprising a compound having a fluorinated segment. Additionally, these two-part polyurethane coatings can be cured under high relative humidity conditions. The present disclosure also relates to articles coated with those two-part polyurethane coatings and to methods of reducing erosion in an article, among other embodiments.

The present invention provides polyurethanes including a reaction product of components including (a) an isocyanate functional urethane prepolymer comprising a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.1 to about 0.5 equivalents of at least one diol having 2 to 18 carbon atoms; and (b) about 0.05 to about 0.9 equivalents of at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups; and (c) up to about 0.9 equivalents of at least one polyol different from branched polyol (b) and having 2 to 18 carbon atoms, wherein the reaction product components are essentially free of polyester polyol and polyether polyol; compositions, coatings and articles made therefrom and methods of making the same.

The invention relates to new, water-emulsifiable isocyanates, to a process for preparing water-emulsifiable isocyanates, and to the use thereof.