The disclosure relates to structural adhesive compositions containing decarboxylated rosin acid (DCR), methods of preparation, and applications thereof. The structural adhesive can be one-component or two-component compositions, selected from epoxy-based adhesives, acrylic-based adhesives, polyurethane-based adhesives, and silyl modified polymer-based adhesives. The DCR has a Kb value of 25-90, a density of 0.9 to 1.0 g/cm.sup.3 at 20? C., a viscosity of 15 to 60 cSt at 40? C., and an acid value of <50 mg KOH/g. The structural adhesive composition after curing, has at least one of: a lap shear strength of at least 200 psi, a tensile elongation of at least 25%, and a tensile strength of at least 600 psi.

One-component toughened epoxy structural adhesives contain fibrous mineral fillers that have an aspect ratio of ?6. The presence of the fibrous filler leads to a significant increase in elastic modulus while having little if any adverse effect on other properties such as dynamic impact peel resistance.

Cellulose cyanoacrylate is employed to bond two surfaces, fill voids or duplicate the shape of a three-dimensional object, Two surfaces may be bonded by placing a sheet of cellulose material between the surfaces and applying cyanoacrylate glue around the edge of the sheet until saturated and allowing it to cure. Paper toweling may favorably be employed as the cellulose material. A break or fracture in an article can be overlaid with a sheet of cellulose that when saturated with cyanoacrylate glue and temporarily held in place and shaped with a releasable film, the fracture can be corrected. A dry powder comprising highly abrasion-resistant particles can be mixed with the cellulose material to enhance abrasion resistance and to improve long-term color stabilityespecially important for dental cavity treatment. To duplicate the shape of a three-dimensional object, a sheet of releasable film is placed over the object, followed by a sheet of cellulose that is then saturated with cyanoacrylate glue. A sheet of releasable film is then placed over the cellulose and used to hold the cellulose in place and shape it as it hardens.

Adhesive compositions and patches, and associated systems, kits, and methods, are generally described. Certain of the adhesive compositions and patches can be used to treat tissues (e.g., in hemostatic or other tissue treatment applications), according to certain embodiments.

A process for retreading a tire, the process comprising the steps of providing a tire casing, providing a cured rubber component having first and second planar surfaces, providing a cushion gum, wherein the cushion gum contains a cure system comprising at least one stable aryl dinitrile oxide compound, applying the cushion gum to the tire casing, and forming a tire composite by applying the second planar surface of the cured rubber component to the cushion gum.

Provided are an adhesive resin laminate having an excellent adhesive force to two adherends, a laminate in which this adhesive resin laminate is laminated with two adherends, and a method of producing them. An adhesive resin laminate having at least a first adhesive layer and a second adhesive layer, in which the first adhesive layer includes a base resin and a crosslinking agent, the base resin is a modified polyolefin resin, the crosslinking agent is an epoxy-based compound, the second adhesive layer includes a polyolefin-based resin, and when an adhesion initiation temperature of the first adhesive layer is set to T1, and an adhesion initiation temperature of the second adhesive layer is set to T2, T2 is higher than T1 by 30 C. or more.

A thermally conductive sheet having an adhesive layer and a non-adhesive layer laminated together. The adhesive layer contains an acrylic resin formed from an acrylic compound and a thermally conductive filler, and has a tack property higher than a tack property of the non-adhesive layer. The non-adhesive layer is formed from a resin having a glass transition temperature of 10 C. or more and at least one functional group selected from a hydroxy, a carboxyl and a glycidyl, a curing agent and a flame retardant filler. The tack property of the non-adhesive layer is from 6 to 30 kN/m.sup.2 measured by pressing and then peeling an aluminum cylindrical probe from the non-adhesive layer with a pressing speed of 30 mm/min, peeling speed of 120 mm/min, load of 196 g, pressing time of 5.0 sec, pulling distance of 5 mm, probe heating of 40 C. and sheet stage heating of 40 C.

The present invention relates to a transdermal therapeutic system for administration of an active ingredient and a process for the preparation thereof. The transdermal therapeutic system comprises an overtape with two adhesive layers.

The following disclosure relates to a flexible and stretchable garment repair patch with a rubber-based carrier and a permanent layer of adhesive used for the repair of clothing garments. The garment repair patch includes: a first layer having a first surface and a second surface; a second layer disposed onto the second surface of the first layer; a third layer disposed onto the second layer such that the second layer is between the first layer and the third layer; and a fourth layer disposed onto the third layer such that the second layer and the third layer are between the first layer and the fourth layer. The first layer includes a rubber material, the second layer includes an adhesion-promoting primer, the third layer includes an acrylic-based adhesive, and the fourth layer includes a release liner.

Reactive composition includes a reactive component able to form an adhesive bond between two substrates, at least one of which comprises a plastic material. The substrate may include an initiator on or near the surface thereof. The initiator may be present in the plastic material inherently, by blending in an additive package, through injection molding, or other process. The reactive component may comprise a methylene malonate, a reactive multifunctional methylene, a methylene beta ketoester, a methylene beta diketone. A carrier component for the reactive component may be selected to interact with the plastic substrate to soften and/or penetrate the surface to be bonded. The surface of the plastic may be abraded or otherwise treated to expose the initiator. The reactive component, upon contact with a suitable initiator, is able to polymerize to form an interpenetrating polymer weld.