The present invention relates to an aqueous emulsion including an ethylenically unsaturated monomer unit-containing polymer as a dispersoid and a polyvinyl alcohol as a dispersant. The content of a free polyvinyl alcohol in the aqueous emulsion is 0.2 to 20 parts by mass relative to 100 parts by mass of the ethylenically unsaturated monomer unit-containing polymer. The free polyvinyl alcohol has a degree of saponification of 80.0 to 99.5 mol % and a viscosity-average degree of polymerization of 200 to 5000, and the free polyvinyl alcohol has a symmetry factor (W.sub.0.05h/2f) that satisfies the following expression (1) as determined by gradient high-performance liquid chromatography for reversed-phase separation using a water-acetone eluent according to JIS K 0124 (2011).
0.85W.sub.0.05h/2f1.30(1)
(The definitions of the symbols are omitted.)

An object of the present invention is to provide a tire puncture sealant having excellent sealing performance and low-temperature properties. The tire puncture sealant of the present invention contains a natural rubber latex (A) and a vinyl versatate copolymer resin emulsion (B) as an emulsion of a vinyl versatate copolymer resin (b1) containing vinyl versatate as a monomer unit; the proportion of the vinyl versatate with respect to all monomer units constituting the vinyl versatate copolymer resin (b1) being from 30 to 70 mass %.

An object of the present invention is to provide a tire puncture sealant having excellent sealing performance and low-temperature properties. The tire puncture sealant of the present invention contains a natural rubber latex (A) and a vinyl versatate copolymer resin emulsion (B) as an emulsion of a vinyl versatate copolymer resin (b1) containing vinyl versatate as a monomer unit; the proportion of the vinyl versatate with respect to all monomer units constituting the vinyl versatate copolymer resin (b1) being from 30 to 70 mass %.

This invention relates to a copolymer composition comprising vinyl ester of 2-ethyl hexanoic acid (VEHA), and particularly to pressure-sensitive adhesive compositions based on VEHA reacted with (meth)acrylate monomers. The present adhesive compositions provide a film with high cohesion and adhesion values, and more particularly to pressure-sensitive adhesive compositions based on VEHA reacted with (meth)acrylate monomers and VeoVa 10. The present adhesive compositions provide a film with high cohesion and adhesion values with Peel on Teflon of at least 2 N/inch.

This invention relates to a copolymer composition comprising vinyl ester of 2-ethyl hexanoic acid (VEHA), and particularly to pressure-sensitive adhesive compositions based on VEHA reacted with (meth)acrylate monomers. The present adhesive compositions provide a film with high cohesion and adhesion values, and more particularly to pressure-sensitive adhesive compositions based on VEHA reacted with (meth)acrylate monomers and VeoVa 10. The present adhesive compositions provide a film with high cohesion and adhesion values with Peel on Teflon of at least 2 N/inch.

The present invention relates to a curable two-step and two-part adhesive composition comprising a first part comprising: at least one (meth)acrylate monomer comprising OH-group; an urethane (meth)acrylate oligomer; a rubber; an adhesion promoter; and a radical initiator; and a second part comprising: at least one (meth)acrylate monomer comprising OH-group, which can be same or different than the at least one (meth)acrylate monomer comprising OH-group in the first part; a nitrile butadiene rubber; and a reducing agent. The composition can be used as a structural adhesive, for example in speaker magnet bonding, e-motor structural bonding and metal component bonding.

The present invention relates to a curable two-step and two-part adhesive composition comprising a first part comprising: at least one (meth)acrylate monomer comprising OH-group; an urethane (meth)acrylate oligomer; a rubber; an adhesion promoter; and a radical initiator; and a second part comprising: at least one (meth)acrylate monomer comprising OH-group, which can be same or different than the at least one (meth)acrylate monomer comprising OH-group in the first part; a nitrile butadiene rubber; and a reducing agent. The composition can be used as a structural adhesive, for example in speaker magnet bonding, e-motor structural bonding and metal component bonding.

The disclosure relates to an adhesive compound, to an adhesive tape, to a bonded composite, to a method for electrically debonding the bonded composite, and to the use of the adhesive compound for the bonding of components in electronic devices, automobiles, medical devices, and dental devices. The adhesive compound includes at least one electrolyte and a base compound, wherein the base compound comprises at least one first phase (i) including at least one poly(meth)acrylate and at least one second phase (ii) including at least one vinylaromatic block copolymer, such as in particular styrene block copolymer, wherein the adhesive compound contains at least 2.5 parts by weight of electrolytes based on 100 parts by weight of the base compound.

The disclosure relates to an adhesive compound, to an adhesive tape, to a bonded composite, to a method for electrically debonding the bonded composite, and to the use of the adhesive compound for the bonding of components in electronic devices, automobiles, medical devices, and dental devices. The adhesive compound includes at least one electrolyte and a base compound, wherein the base compound comprises at least one first phase (i) including at least one poly(meth)acrylate and at least one second phase (ii) including at least one vinylaromatic block copolymer, such as in particular styrene block copolymer, wherein the adhesive compound contains at least 2.5 parts by weight of electrolytes based on 100 parts by weight of the base compound.