A composition and a material prepared from the composition are provided. The composition includes 50-99 parts by weight of a polyether polyol and 1-50 parts by weight of a compound having a structure represented by Formula (I)

##STR00001##

wherein R.sup.1 is C.sub.1-6 independent alkylene group; R.sup.2 is

##STR00002##

R.sup.3 is independently C.sub.1-6 alkylene group; i≥1; j≥0; k=0, 1, or 2; R.sup.4 is C.sub.1-24 alkyl group when k=1, or 2, or R.sup.4 is C.sub.6-24 alkyl group when k is 0; and B is independently

##STR00003##

The invention relates to polymer comprising structural units according to formula (I), R.sup.1—X—(C═O)—NH—R.sup.2—NH—(C═O)—O—POA-R.sup.3—(O—POA-R.sup.4).sub.n wherein R.sup.1 represents an organic group terminated by a hydrocarbyl group having 6 to 50 carbon atoms, X represents O or N—R.sup.5, wherein R.sup.5 represents a hydrogen atom or a hydrocarbyl group having 1 to 30 carbon atoms, R.sup.2 represents a hydrocarbyl group comprising an aromatic group and having 6 to 40 carbon atoms, POA represents a polyoxyalkylene group, R.sup.3 represents an organic group having 2 to 40 carbon atoms, n is an integer from 1 to 6, R.sup.4 is independently selected from —(C═O)—NH—R.sup.2—NH—(C═O)—NH—R.sup.1, —R.sup.6, wherein R.sup.6 represents a hydrogen atom or an aliphatic or aromatic group having 1 to 24 carbon atoms, and wherein the polymer has an average of at least 1.8 end groups R.sup.1 per molecule, a number average molecular weight in the range of 2000 to 100000 Daltons, and a polydispersity in the range of 1.0 to 5.0, wherein the quotient of the polydispersity divided by (n+1) is less than 1.0.

The present invention is a toughened one component epoxy adhesive composition demonstrating improved resistance to humidity. Wherein said one-part structural adhesive comprises: A) a blocked PU-polymer toughener compound; B) an epoxy resin component comprising a solid epoxy resin, a liquid epoxy resin, or mixture thereof; C) a curing agent; D) a urea compound; and E) optionally a filler, wherein the blocked PU-polymer toughener (A) is a reaction product of a reaction mixture comprising of: i) a polyether, ii) a hydroxyl-terminated polybutadiene, iii) a polyisocyanate, iv) a chain extender, and v) a capping group.

A method is disclosed for producing a polyurethane film including the steps of depositing a prepolymer composition, drying the prepolymer composition, and crosslinking the propolymer composition.

A method is disclosed for producing a polyurethane film including the steps of depositing a prepolymer composition, drying the prepolymer composition, and crosslinking the propolymer composition.

A paint composition contains (A) a binder component, (B) a first rheology control agent, and (C) a second rheology control agent, wherein the first rheology control agent (B) contains a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 and less than 6000; the proportion of the polyether amine having a number average molecular weight of more than 300 and less than 6000 (b3) is 0.5 mass % or more and less than 10 mass % based on the total amount of the components (b1) to (b3); the second rheology control agent (C) contains a reaction product of (c1) a polyisocyanate compound, (c2) a primary monoamine having a number average molecular weight of 300 or less, and (c3) a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000; and the proportion of the polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (c3) is within a range of 10 to 30 mass % based on the total amount of the components (c1) to (c3).

Described herein is a thermosetting resin composition, obtained from the reaction of at least: a polycarbodiimide (i), where the number of carbodiimide groups per molecule is in the range of from 1 to 10; a mixture of crystalline and amorphous polyols (ii), where the molar ratio of carbodiimide groups in the polycarbodiimide according to (i) to hydroxyl groups in the mixture according to (ii) is in the range of from 1:2 to 2:1 and where at least 25 weight-% of the mixture according to (ii) consists of at least one crystalline polyesterol, based on the overall weight of the mixture being 100 weight-%. Also described herein is a method of using the thermosetting resin composition as an adhesive, as well as processes for preparation of adhesives, an element including an adhesive layer on at least one substrate, and an adhesive film, obtained from one of the processes.

The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more:

##STR00001##

wherein R.sup.1 and R.sup.2 each represent a residue of an organic compound (excluding ethanol) having one functional group reactive with an isocyanate group, wherein the functional group is removed from the organic compound; R.sup.3 represents a divalent residue of a diisocyanate compound from which two isocyanate groups are removed; the diisocyanate compound has a hydrocarbon group which directly bonds to the two isocyanate groups; R.sup.4 represents a divalent residue of a diol compound from which two hydroxyl groups are removed; X.sup.1 and X.sup.2 each represent a bond formed by a reaction of the functional group with the isocyanate group; m and n each represent a number of 1 to 20; and p represents a number of 2 to 20.

The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more:

##STR00001##

wherein R.sup.1 and R.sup.2 each represent a residue of an organic compound (excluding ethanol) having one functional group reactive with an isocyanate group, wherein the functional group is removed from the organic compound; R.sup.3 represents a divalent residue of a diisocyanate compound from which two isocyanate groups are removed; the diisocyanate compound has a hydrocarbon group which directly bonds to the two isocyanate groups; R.sup.4 represents a divalent residue of a diol compound from which two hydroxyl groups are removed; X.sup.1 and X.sup.2 each represent a bond formed by a reaction of the functional group with the isocyanate group; m and n each represent a number of 1 to 20; and p represents a number of 2 to 20.

Disclosed are hydrogels polymerized with a biofunctional moiety, biodegradable and permanent, designed to be implantable in a mammalian body and intended to block or mitigate the formation of tissue adhesions. The hydrogels of the present invention are characterized by comprising four structural elements: a) a polymeric backbone which defines the overall polymeric morphology, b) linkage groups, c) side chains, and d) biofunctional end groups. The hydrophobicity of the various structural elements are chosen to reduce tissue adhesion and enhance the biofunctional aspect of the end groups. The morphology of these polymers are typically of high molecular weight and have shape to encourage entanglement. Useful structures include branching chains, comb or brush, and dendritic morphologies.