The thermoplastic polyurethane (TPU) compositions described herein have biodegradable and/or bioabsorbable hard and soft segments. The TPU hard segment can be formed from a polyisocyanate and a 2,5-substituted diketopiperazine.

The thermoplastic polyurethane (TPU) compositions described herein have biodegradable and/or bioabsorbable hard and soft segments. The TPU hard segment can be formed from a polyisocyanate and a 2,5-substituted diketopiperazine.

Disclosed herein are self-healing oligomers according to the structure [UPy-(D.sub.m-U-D.sub.m)(.sub.2+q)]-[A(G)(.sub.n−1)-D.sub.m].sub.k-Z; wherein UPy, D, m, U, q, A, G, n, k, and Z are defined and described further herein, and wherein the oligomer possesses at least 3 urethane linking groups and comprises a backbone derived from a polyether polyol, a polyester polyol, a poly(dimethylsiloxane), a disulfide polyol, or combinations thereof. Also described and claimed are various compositions containing such oligomers as part of a self-healing component, wherein such compositions also include an optional reactive monomer and/or oligomer component and a photoinitiator component. Yet further described and claimed are articles cured from the compositions elsewhere described using the oligomers elsewhere described.

There is provided herein a silylated organo-modified compound which comprises: at least one moiety having the formula (A):

##STR00001##

wherein the subscript a is 1 or 2, each D is independently NH or O, each of X, Y and Z are independently an unsubstituted or substituted C or N, the dashed lines between X, Y, and Z indicate an optional double bond between either X and Y or Y and Z, with the proviso that when any of X, Y, or Z is a substituted N atom, such substituted N atom does not participate in a double bond, and each Q is independently O or S; and, at least two moieties having the formula (B):

##STR00002##

Polymers include a monomer with a polyurethane, a supramolecular moiety, an elastomer moiety and a functional group that includes a —C═N— link. The polymers can be prepared and incorporated into a composition. The polymers can be double dynamic polymers, which present adhesive and self-healing properties. The polymers can also be recyclable.

This invention provides a cationic electrodeposition paint composition comprising an amino-group-containing epoxy resin (A), a blocked polyisocyanate compound (B), and a modified imidazole (C) having a specific structure, wherein the cationic electrodeposition paint composition satisfies the following (i) or (ii), or both: (i) the cationic electrodeposition paint composition further comprises a rust inhibitor (D) or (ii) a blocking agent (b-2) of the blocked polyisocyanate compound (B) is an oxime-based compound (b-2-1) and/or a pyrazole-based compound (b-2-2).

A method for stably storing an isocyanate composition comprising A1) one or more polyisocyanates and A2) at least one free radical initiator is provided. The method comprises adding a component A3) comprising at least one free radical inhibitor into the isocyanate composition. An isocyanate composition and a polyurethane resin prepared from the isocyanate composition is also provided.

Disclosed herein are methods for synthesizing oligomer mixtures with one or more moieties capable of forming a multi-hydrogen bonding dimer. The method comprises the steps of providing certain intermediate reaction products; adding a polyol component to the intermediate reaction product to yield an oligomer mixture comprising one or more multi-hydrogen bonding groups; and further reacting the mixture with certain isocyanate-reactive compounds to yield a multi-hydrogen bonding oligomer, wherein solvents comprise less than 50% of the total by weight of all reagents used in the synthesis of the multi-hydrogen bonding oligomer. Preferably, such methods involve no separation, distillation, or isolation of any intermediate product, and as such, they are particularly useful for a continuous or one-pot synthesis.

The present invention relates to reaction products containing urethane groups and urea groups, containing at least one species of general formula (I), to a method for producing said reaction products, to the use of said reaction products as wetting agents, dispersants, dispersion stabilizers, and/or adhesion promoters, and to compositions that contain the reaction products containing urethane groups and urea groups.

##STR00001##

The present invention relates to reaction products containing urethane groups and urea groups, containing at least one species of general formula (I), to a method for producing said reaction products, to the use of said reaction products as wetting agents, dispersants, dispersion stabilizers, and/or adhesion promoters, and to compositions that contain the reaction products containing urethane groups and urea groups.

##STR00001##