Provided is a coating for forming a conductive release layer capable of forming a conductive release layer having high adhesion to a film base material, suppressing deterioration in conductivity over time in the air, and having a sufficient releasing property. The coating for forming a conductive release layer of the present invention contains a conductive composite including a π-conjugated conductive polymer and a polyanion, an epoxy compound having an epoxy group, a curable silicone, a polyester resin, and an organic solvent.

The inventors have discovered hot melt adhesive compositions that can be formulated to have a high percentage of environmentally conscious components and still provide performance over a broad temperature range.

The invention features a hot melt adhesive composition including from 5% by weight to 50% by weight of a styrene block copolymer, from 15% by weight to 75% by weight of a bio-based tackifying agent, and from 5% by weight to 40% by weight of an aliphatic plasticizer having a cyclo-aliphatic content of no greater than 1% by weight as tested by .sup.1H-NMR Spectroscopy, wherein said hot melt adhesive composition has an environmentally conscious component content of at least 50% by weight.

A roofing underlayment capable of adhering to a roof deck comprising: (a) a roofing membrane having a first and a second major surface; and (b) a pressure-sensitive adhesive disposed on the first major surface of the roofing membrane and comprising: (i) at least one of butyl rubber or polyisobutylene; (ii) a first liquid plasticizer, preferably polybutene; and (iii) a tackifier, wherein the Tg of the adhesive is at most about 100 C. The adhesive provides high bond strength and excellent long-term heat aging, weathering resistance, as well as good low temperature properties while providing a moisture proof seam. A method for making the roofing underlayment includes applying the adhesive to the membrane then applying a release liner over the adhesive layer. A method for using the roofing underlayment comprises removing the release liner then adhering the underlayment to the roof deck by contacting the first to the roof deck.

A roofing underlayment capable of adhering to a roof deck comprising: (a) a roofing membrane having a first and a second major surface; and (b) a pressure-sensitive adhesive disposed on the first major surface of the roofing membrane and comprising: (i) at least one of butyl rubber or polyisobutylene; (ii) a first liquid plasticizer, preferably polybutene; and (iii) a tackifier, wherein the Tg of the adhesive is at most about 100 C. The adhesive provides high bond strength and excellent long-term heat aging, weathering resistance, as well as good low temperature properties while providing a moisture proof seam. A method for making the roofing underlayment includes applying the adhesive to the membrane then applying a release liner over the adhesive layer. A method for using the roofing underlayment comprises removing the release liner then adhering the underlayment to the roof deck by contacting the first to the roof deck.

Provided are a resin composition for a tackifier or an adhesive and a preparation method thereof. Provided is a resin composition for a tackifier or an adhesive, which includes a hydrogenated petroleum resin with a controlled hydrogenation rate to have excellent compatibility with polyolefin and to exhibit high transparency while having improved quality including adhesive property.

Provided is an adhesive composition that is capable of forming an adhesive layer having excellent electrical properties (low relative permittivity and low dielectric loss tangent) and excellent adhesiveness (adhesion properties) after heat curing, can improve adhesiveness (adhesion properties) in a laminating step, can prevent the peeling and lifting of layers during temporary fixing and roll-to-roll work, also has a high crosslink density, and does not cause heat resistance, solvent resistance and the like to deteriorate. The adhesive composition contains a bismaleimide resin and a styrene-based elastomer.

Disclosed are curable adhesive compositions comprising hydroxyl functional polymers and silane functionalized resins. Such adhesive compositions are capable of providing unexpected properties for various uses and end products. The adhesive may be used for woodworking, automotive, textile, appliances, electronics, bookbinding, and packaging. Suitable substrates can be metal, polymer film, plastics, wood, glass, ceramic, paper, and concrete.

Disclosed are curable adhesive compositions comprising hydroxyl functional polymers and silane functionalized resins. Such adhesive compositions are capable of providing unexpected properties for various uses and end products. The adhesive may be used for woodworking, automotive, textile, appliances, electronics, bookbinding, and packaging. Suitable substrates can be metal, polymer film, plastics, wood, glass, ceramic, paper, and concrete.

An elastomeric mastic sealant composition and method of manufacturing are disclosed. In certain embodiments, the composition may include between about 13 and about 19 weight percent or between about 11 and about 15 volume percent of acrylate-acrylonitrile copolymer. The composition may further comprise one or more of between about 36 and about 41 weight percent or between about 29 and about 34 volume percent of styrenated acrylic polymer; between about 1 and about 2 weight percent or between about 0.9 and about 1.7 volume percent of surfactant; between about 0.6 and about 1.4 weight percent or between about 0.4 and about 1 volume percent of dispersant; and between about 0.4 and about 1 weight percent or between about 29 and about 40 volume percent of pre-expanded compressible microspheres having an organic outer surface and introduced by a closed mixing system into the copolymer. In some implementations, the disclosed composition and method forms a closed-cell, semi-foam, mastic sealant using gas-filled, flexible, organic microspheres to create a product that once cured, is elastic and compressible under pressure without unduly protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant in such implementations to function as a gasket, and to have properties including vibration damping, insulating, and/or condensation resistance.

An elastomeric mastic sealant composition and method of manufacturing are disclosed. In certain embodiments, the composition may include between about 13 and about 19 weight percent or between about 11 and about 15 volume percent of acrylate-acrylonitrile copolymer. The composition may further comprise one or more of between about 36 and about 41 weight percent or between about 29 and about 34 volume percent of styrenated acrylic polymer; between about 1 and about 2 weight percent or between about 0.9 and about 1.7 volume percent of surfactant; between about 0.6 and about 1.4 weight percent or between about 0.4 and about 1 volume percent of dispersant; and between about 0.4 and about 1 weight percent or between about 29 and about 40 volume percent of pre-expanded compressible microspheres having an organic outer surface and introduced by a closed mixing system into the copolymer. In some implementations, the disclosed composition and method forms a closed-cell, semi-foam, mastic sealant using gas-filled, flexible, organic microspheres to create a product that once cured, is elastic and compressible under pressure without unduly protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant in such implementations to function as a gasket, and to have properties including vibration damping, insulating, and/or condensation resistance.