Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components, and a thermally activatable amine curative, and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one liquid amine.

Abstract: Apparatus and method for joining two tubular elements (14, 22) at a joint using an adhesive that is non-flowable at ambient temperatures but flowable at an elevated temperature. A ring (12) of uncured, non-flowable adhesive is placed around the male end of a male (14)/female (22) pipe interface. Upon exposure to elevated temperatures, the ring (12) melts and flows down into the interface, and cures.

Abstract: A two-part curable composition is provided that includes a first part that includes an oxamido-containing compound and a second part that includes an epoxy resin. The oxamido-containing compound includes at least one first segment derived from a first polyamine and at least one second segment derived from a second polyamine that is different than the first polyamine. The oxamido-containing compound has at least two amino (—NH2) groups that can react with the epoxy resin in the second part of the curable composition. Each part of the curable composition is flowable, often at room temperature or slightly above room temperature, and can be mixed to form a cured composition having structural bonding performance.

Abstract: Methods of bonding a male element and a female element, the method including applying an adhesive composition to at least the male element, the male element including a first metal; inserting at least a portion of the male element into the female element thereby forming an external interface between the male element and the female element, the female element including a second metal; and curing the adhesive composition to form an adhesive bond between the male element and the female element, wherein the first metal and the second metal are not the same, wherein the external interface of the male element and female element is covered by the cured adhesive composition and the adhesive composition covering the external interface of the male element and female element limits corrosion of at least a portion of the male element, the female element, or both.

Abstract: Articles that include at least two substrates; and an adhesion promoter, wherein the adhesion promoter is a compound of formula I, (I) wherein x is an integer from 1 to 4, y is an integer from 2 to 6, and z is an integer from 1 to 6; and a structural adhesive positioned at least between the two substrates. Structural adhesives including such adhesion promoters and methods for bonding two substrates are also disclosed herein.

Abstract: A thermally curable adhesive film, a tape, and a method of making the tape, wherein the film includes: a crosslinked (meth)acrylate matrix; and a thermally curable, one-part epoxy/thiol resin composition incorporated within the crosslinked (meth)acrylate matrix; wherein the thermally curable, one-part epoxy/thiol resin composition comprises: an epoxy resin component comprising an epoxy resin having at least two epoxide groups per molecule; a thiol component comprising a polythiol compound having at least two thiol groups; a nitrogen-containing catalyst for the epoxy resin; and an organic acid.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; an optional second hydroxyl-containing compound having a single OH group, wherein; and an epoxy component. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine.

Abstract: A curable, one-part epoxy/thiol resin composition comprising: an epoxy resin component comprising an epoxy resin having at least two epoxide groups per molecule; a thiol component comprising a polythiol compound having at least two primary thiol groups; a nitrogen-containing catalyst for the epoxy resin; and a substituted barbituric acid soluble in the one-part epoxy/thiol resin composition.

Abstract: A composition is described comprising a cyclic olefin; a ring opening metathesis polymerization catalyst; and at least 40 wt. % of thermally conductive particles. The thermally conductive particles are selected such that the composition after curing has a thermal conductivity of at least 1W/M*K. In one embodiment, the thermally conductive particle comprises a combination of smaller and larger thermally conductive particles. In another embodiment, the thermally conductive particles comprise boron nitride particles. Also described are (e.g. structural) adhesives, methods of bonding and articles.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate.

Abstract: The present disclosure provides a two-part composition polymeric material including a first part and a second part. The first part includes an inorganic filler and a polymeric material including a polymerized reaction product of a polymerizable composition including components. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The second part includes a polythiol having an average sulfhydryl group functionality of 2 or greater. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate.

Abstract: A curable composition that includes a urethane multifunctional (meth)acrylate, an inorganic filler having a primary particle dimension of at least 200 nm, a photoinitiator system that can be activated by electromagnetic radiation in the range of 340-550 nm, a reactive diluent, and a reinforcing silica having a primary particle dimension of 100 nm of less. The sum of the absolute value of the difference in the refractive index of the filler and the refractive index of the composition cured without filler plus the birefringence of the filler is 0.054 or less, i.e. 0.054?|nfiller?nmatrix|+?filler, where nfiller is the refractive index of the filler, nmatrix is the refractive index of the composition cured without filler, and ?filler is the birefringence of the filler.

Abstract: A curable composition includes a first part comprising an epoxy resin; and a second part comprising a multifunctional, functional thiol containing compound. The curable composition further includes an inorganic filler present in an amount of at least 20 weight %, based on the total weight of the curable composition. The multifunctional, functional thiol containing compound comprises an ether in the backbone thereof.

Abstract: Apparatus and method for joining two tubular elements (14, 22) at a joint using an adhesive that is non-flowable at ambient temperatures but flowable at an elevated temperature. A ring (12) of uncured, non-flowable adhesive is placed around the male end of a male (14)/female (22) pipe interface. Upon exposure to elevated temperatures, the ring (12) melts and flows down into the interface, and cures.

Abstract: A curable, one-part epoxy/thiol resin composition comprising: an epoxy resin component comprising an epoxy resin having at least two epoxide groups per molecule; a thiol component comprising a polythiol compound having at least two primary thiol groups; a nitrogen-containing catalyst for the epoxy resin; and a substituted barbituric acid soluble in the one-part epoxy/thiol resin composition.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; an optional second hydroxyl-containing compound having a single OH group; an epoxy component; and an accelerator. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one thiol-containing compound.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; an optional second hydroxyl-containing compound having a single OH group, wherein; and an epoxy component. The epoxy component is present in an amount of 35% by weight or greater, based on the total weight of the polymerizable composition. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second includes at least one amine.

Abstract: A one-part thermally curable composition comprises at least one polyuretdione, thermally activatable amine curative; optional epoxy resin; optional polythiol having an average sulfhydryl group functionality of at least 2; and optional acid stabilizer. The at least one polyuretdione has an average uretdione ring functionality of at least 1.2, and is a reaction product of components comprising: a uretdione-containing material comprising a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound having a single OH group, wherein the first hydroxyl-containing compound is a primary alcohol or a secondary alcohol; and a second hydroxyl-containing compound having more than one OH group, wherein the second hydroxyl-containing compound is a polyol and the reaction product comprises 0.2 to 0.5, inclusive, of hydroxyl equivalents relative to isocyanate equivalents. Cured compositions and assemblies including them are also disclosed.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and has a solids content of 90% or greater. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; an optional second hydroxyl-containing compound having a single OH group, wherein; and an epoxy component. The first hydroxyl-containing compound has more than one OH group and the optional second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine.

Abstract: The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components, a polythiol having an average sulfhydryl group functionality of 2 or greater, and an acidic stabilizer. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound having more than one OH group; and an optional second hydroxyl-containing compound having a single OH group. The second hydroxyl-containing compound is a primary alcohol or a secondary alcohol. The present disclosure also provides a two-part composition, in which a polymeric material is included in the first part and the second part includes at least one accelerator.