Polyfunctional amine structures exhibiting at least one hydrophobic moiety selected from the group consisting of; hydrophobic epoxides, hydrophobic glycidyl ethers and hydrophobic (meth)acrylates are described which provide crosslinking capabilities for latex polymer compositions. These crosslinkers not only exhibit latent crosslinking properties but also improved hydrophobicity when compared with existing latex formulations. Latent crosslinking provides advantages associated with fast interactions between the anionic latex charge and the cationic charge associated with these hydrophobically modified polyfunctional amine crosslinkers. Once the latex is coated onto a substrate, the volatile base evaporates and the groups react to form a crosslinked coating with both improved hydrophobic and wash-off properties.

Polyfunctional amine structures exhibiting at least one hydrophobic moiety selected from the group consisting of; hydrophobic epoxides, hydrophobic glycidyl ethers and hydrophobic (meth)acrylates are described which provide crosslinking capabilities for latex polymer compositions. These crosslinkers not only exhibit latent crosslinking properties but also improved hydrophobicity when compared with existing latex formulations. Latent crosslinking provides advantages associated with fast interactions between the anionic latex charge and the cationic charge associated with these hydrophobically modified polyfunctional amine crosslinkers. Once the latex is coated onto a substrate, the volatile base evaporates and the groups react to form a crosslinked coating with both improved hydrophobic and wash-off properties.

The present invention relates to a polymer latex for dip-molding applications obtainable by free-radical emulsion polymerization of a mixture of ethylenically unsaturated monomers comprising at least one conjugated diene and at least one ethylenically unsaturated nitrile compound in an aqueous medium in presence of seed latex particles having a glass transition temperature (mid point temperature Tmg) measured by DSC according to ASTM D3418-03 of ?50? C. to 50? C. wherein the seed latex particles do not contain structural units derived from ethylenically unsaturated nitrile compounds, to a method of preparing said polymer latex, to articles made by using said polymer latex and to a method for preparing dip-molded articles from said polymer latex.

The present invention relates to a polymer latex for dip-molding applications obtainable by free-radical emulsion polymerization of a mixture of ethylenically unsaturated monomers comprising at least one conjugated diene and at least one ethylenically unsaturated nitrile compound in an aqueous medium in presence of seed latex particles having a glass transition temperature (mid point temperature Tmg) measured by DSC according to ASTM D3418-03 of ?50? C. to 50? C. wherein the seed latex particles do not contain structural units derived from ethylenically unsaturated nitrile compounds, to a method of preparing said polymer latex, to articles made by using said polymer latex and to a method for preparing dip-molded articles from said polymer latex.

Resin composition, insulating resin film and use thereof. The resin composition comprises the following components in parts by mass: 50-90 parts of a hydrogenated hydrocarbon resin and 10-50 parts of a benzocyclobutene resin; the benzocyclobutene resin comprises at least one structural unit A and at least one structural unit B. The hydrogenated hydrocarbon resin and the benzocyclobutene resin with a specific structure are both total-hydrocarbon structures, having low dielectric constant Dk, dielectric loss tangent Df, and water absorption rate. The benzocyclobutene resin can be thermally cured to obtain the high cross-linking density, high glass transition temperature, and excellent heat resistance. The resin composition and the insulating resin film prepared therewith have ultra-low dielectric constant and loss tangent, excellent dielectric properties, heat resistance, damp heat resistance, adhesion strength, and excellent mechanical properties such as flexibility, satisfying the performance requirements of electronic components being high frequency, high speed, and high integration.

Resin composition, insulating resin film and use thereof. The resin composition comprises the following components in parts by mass: 50-90 parts of a hydrogenated hydrocarbon resin and 10-50 parts of a benzocyclobutene resin; the benzocyclobutene resin comprises at least one structural unit A and at least one structural unit B. The hydrogenated hydrocarbon resin and the benzocyclobutene resin with a specific structure are both total-hydrocarbon structures, having low dielectric constant Dk, dielectric loss tangent Df, and water absorption rate. The benzocyclobutene resin can be thermally cured to obtain the high cross-linking density, high glass transition temperature, and excellent heat resistance. The resin composition and the insulating resin film prepared therewith have ultra-low dielectric constant and loss tangent, excellent dielectric properties, heat resistance, damp heat resistance, adhesion strength, and excellent mechanical properties such as flexibility, satisfying the performance requirements of electronic components being high frequency, high speed, and high integration.

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.

A PVC-free surface covering comprises at least one layer of a thermoplastic composition. The composition comprises a polymer matrix and at least one filler. The polymer matrix comprises at least one ionomer and/or at least one acid copolymer; and at least one styrenic thermoplastic polymer.