A pressure sensitive adhesive composition, comprising a first acrylic resin having from 1% to 10% by weight of an ethylenically unsaturated monomer having a hydroxy substituent; a second acrylic resin having from 1% to 10% by weight of an ethylenically unsaturated monomer having an acidic carboxyl group; a polyisocyanate crosslinking agent; and a polyaziridine crosslinking agent or a polyepoxy crosslinking agent.

The present invention relates to a thermoplastic resin composition, which includes a first copolymer formed by polymerizing a monomer mixture of a (meth)acrylate-based monomer, a vinyl cyan-based monomer and a maleimide-based monomer, and having a refractive index of 1.5170 or less and a glass transition temperature of 115.0 C. or more; and a second copolymer formed by graft-copolymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer, and the thermoplastic resin composition according to the present invention has improved heat resistance, colorability and scratch resistance.

A thermoplastic resin composition with low gloss and improved colorability, pencil hardness and wear resistance has (A) 5 to 35% by weight of a first graft copolymer having an average particle diameter of 50 to 150 nm and containing acrylate rubber as a core; (B) 10 to 40% by weight of a second graft copolymer having an average particle diameter of more than 150 nm and 800 nm or less and containing acrylate rubber as a core; (C) 5 to 15% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer having a weight average molecular weight of 70,000 to 130,000 g/mol; (D) 20 to 50% by weight of an aromatic vinyl compound-(meth)acrylate compound copolymer having a weight average molecular weight of 65,000 to 100,000 g/mol; and (E) 0.1 to 7% by weight of a syndiotactic polystyrene resin.

A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate copolymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or increased molecular weights. The crosslinked compositions can function as adhesive compositions that are particularly well suited for use in electronic devices.

A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate copolymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or increased molecular weights. The crosslinked compositions can function as adhesive compositions that are particularly well suited for use in electronic devices.

Methods for preparing vinyl ester-ethylene copolymers and methods for recovering residual monomers when preparing the same. The method includes performing a stage (a) where radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers in an aqueous medium is performed. In a stage (b) a polymerization mixture from stage (a) is depressurized producing an ethylene-containing gas phase and an aqueous phase containing vinyl esters and vinyl ester-ethylene copolymers. Where the ethylene-containing gas phase separated off, then absorbed into vinyl esters and the mixture thus obtained is used in the radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers. In a stage (c) the aqueous phase from stage (a) is depressurized forming a gas phase containing vinyl esters and water that is separated off, then condensed and then used in the radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers.

Methods for preparing vinyl ester-ethylene copolymers and methods for recovering residual monomers when preparing the same. The method includes performing a stage (a) where radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers in an aqueous medium is performed. In a stage (b) a polymerization mixture from stage (a) is depressurized producing an ethylene-containing gas phase and an aqueous phase containing vinyl esters and vinyl ester-ethylene copolymers. Where the ethylene-containing gas phase separated off, then absorbed into vinyl esters and the mixture thus obtained is used in the radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers. In a stage (c) the aqueous phase from stage (a) is depressurized forming a gas phase containing vinyl esters and water that is separated off, then condensed and then used in the radically initiated polymerization of vinyl esters, ethylene and optionally further ethylenically unsaturated monomers.

Provided herein are mycelium materials and methods for production thereof. In some embodiments, a mycelium material includes: a cultivated mycelium material including one or more masses of branching hyphae, wherein the one or more masses of branching hyphae may be disrupted or pressed and/or a bonding agent may be combined with the cultivated mycelium material. Methods of producing a mycelium material are also provided.

A carboxyl group-containing acrylic rubber composition comprising (A) carboxyl group-containing acrylic rubber, (B) 1,4-diazabicyclo[2.2.2]octane, (D) a crosslinking agent for carboxyl group-containing acrylic rubber, and (E) a guanidine-based, thiuram-based, or thiourea-based crosslinking accelerator. The carboxyl group-containing acrylic rubber composition can form an acrylic rubber layer having excellent bonding strength to a fluororubber layer by crosslinking bonding a fluororubber composition. The carboxyl group-containing acrylic rubber composition may further comprise (C) a primary amine represented by the general formula RNH.sub.2, wherein R is an aliphatic hydrocarbon group having 1 to 30 carbon atoms, thereby increasing interlaminar bonding force.

A carboxyl group-containing acrylic rubber composition comprising (A) carboxyl group-containing acrylic rubber, (B) 1,4-diazabicyclo[2.2.2]octane, (D) a crosslinking agent for carboxyl group-containing acrylic rubber, and (E) a guanidine-based, thiuram-based, or thiourea-based crosslinking accelerator. The carboxyl group-containing acrylic rubber composition can form an acrylic rubber layer having excellent bonding strength to a fluororubber layer by crosslinking bonding a fluororubber composition. The carboxyl group-containing acrylic rubber composition may further comprise (C) a primary amine represented by the general formula RNH.sub.2, wherein R is an aliphatic hydrocarbon group having 1 to 30 carbon atoms, thereby increasing interlaminar bonding force.