A method is described for selecting a treatment additive for aqueous systems, in which crystal habit modification properties are prioritized; for aqueously preparing a substantially poly-maleic additive through in-situ formation of maleic acid copolymer so that mono-carboxylic acids, non-ionic functional groups, and terminal hydroxyl groups are also formed during polymerization; and for applying such additives for treatment of aqueous systems. Treatment agents resulting from these processes are also described.

A method is described for selecting a treatment additive for aqueous systems, in which crystal habit modification properties are prioritized; for aqueously preparing a substantially poly-maleic additive through in-situ formation of maleic acid copolymer so that mono-carboxylic acids, non-ionic functional groups, and terminal hydroxyl groups are also formed during polymerization; and for applying such additives for treatment of aqueous systems. Treatment agents resulting from these processes are also described.

The present invention concerns a two-part curable composition comprising: •a first part (component A) comprising: —at least 51% by weight based on the total weight of the first part, of one or more cyanoacrylate monomer(s); —a transition metal complex; and—an antioxidant; •a second part (component B) comprising: —a per-compound; —at least one Michael acceptor M selected from the group consisting of (meth)acrylic monomers, (meth)acrylic functionalized oligomers, (meth)acrylic functionalized resins, and mixtures thereof; provided that the composition comprises (in the first part and/or in the second part) at least one compound C comprising a radical -EWG.sub.1-CH.sub.2-EWG.sub.2- wherein EWG.sub.2 and EWG.sub.1 are independently of each other an electron withdrawing group.

The present invention concerns a two-part curable composition comprising: •a first part (component A) comprising: —at least 51% by weight based on the total weight of the first part, of one or more cyanoacrylate monomer(s); —a transition metal complex; and—an antioxidant; •a second part (component B) comprising: —a per-compound; —at least one Michael acceptor M selected from the group consisting of (meth)acrylic monomers, (meth)acrylic functionalized oligomers, (meth)acrylic functionalized resins, and mixtures thereof; provided that the composition comprises (in the first part and/or in the second part) at least one compound C comprising a radical -EWG.sub.1-CH.sub.2-EWG.sub.2- wherein EWG.sub.2 and EWG.sub.1 are independently of each other an electron withdrawing group.

The present invention relates to a thermoplastic resin composition comprising: 100 parts by weight of a base resin comprising a first polymer obtained by graft polymerization of an aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a diene-based rubber polymer, a second polymer comprising maleimide-based monomer units, maleic acid-based monomer units, and aromatic vinyl-based monomer units, and a third polymer comprising aromatic vinyl-based monomer units and vinyl cyanide-based monomer units; and 1 part by weight to 3 parts by weight of a fourth polymer comprising polyvinyl alcohol.

The present invention relates to a thermoplastic resin composition comprising: 100 parts by weight of a base resin comprising a first polymer obtained by graft polymerization of an aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a diene-based rubber polymer, a second polymer comprising maleimide-based monomer units, maleic acid-based monomer units, and aromatic vinyl-based monomer units, and a third polymer comprising aromatic vinyl-based monomer units and vinyl cyanide-based monomer units; and 1 part by weight to 3 parts by weight of a fourth polymer comprising polyvinyl alcohol.

A polymer-modified cementitious composition comprising a specific aqueous polymer dispersion and a cementitious material, and such polymer-modified cementitious composition having low ammonia release and providing coating membranes made therefrom with balanced tensile strength and elongation at break.

A polymer-modified cementitious composition comprising a specific aqueous polymer dispersion and a cementitious material, and such polymer-modified cementitious composition having low ammonia release and providing coating membranes made therefrom with balanced tensile strength and elongation at break.

A powdery paper-strengthening agent, comprising a branched (meth)acrylamide-based polymer (A) having a weight-average molecular weight of 1,000,000 to 8,000,000 and a molecular weight distribution of 1.4 to 3.0, wherein the branched (meth)acrylamide-based polymer (A) comprises, as constituent monomers, a (meth)acrylamide (a1), a crosslinkable unsaturated monomer (a2), and at least one of a cationic unsaturated monomer (a3) and an anionic unsaturated monomer (a4), and wherein a content of unreacted (a1) component is 1,000 ppm or less.

A powdery paper-strengthening agent, comprising a branched (meth)acrylamide-based polymer (A) having a weight-average molecular weight of 1,000,000 to 8,000,000 and a molecular weight distribution of 1.4 to 3.0, wherein the branched (meth)acrylamide-based polymer (A) comprises, as constituent monomers, a (meth)acrylamide (a1), a crosslinkable unsaturated monomer (a2), and at least one of a cationic unsaturated monomer (a3) and an anionic unsaturated monomer (a4), and wherein a content of unreacted (a1) component is 1,000 ppm or less.