Polymers comprising first and second fluorescent or colored moieties on the polymer backbone and two or more charged moieties on the polymer backbone between the first and second colored or fluorescent moieties are provided. The polymers are useful as fluorescent or colored dyes. Methods associated with preparation and use of such polymers are also provided.

Systems, methods, fuel cells, and mixtures to inhibit ionomer permeation into porous substrates using a crosslinked ionomer are described. A method includes preparing an ionomer premix, mixing a crosslinking additive with the ionomer premix to thereby form a crosslinked-ionomer solution, and adding catalyst particles to the crosslinked-ionomer solution to produce a catalyst ink. The ionomer premix includes an ionomer dispersed within a solvent. The catalyst ink includes the catalyst particles distributed homogenously therethrough. The catalyst ink may be cast onto a porous substrate and dried to thereby form a catalyst layer for use in a fuel cell.

Systems, methods, fuel cells, and mixtures to inhibit ionomer permeation into porous substrates using a crosslinked ionomer are described. A method includes preparing an ionomer premix, mixing a crosslinking additive with the ionomer premix to thereby form a crosslinked-ionomer solution, and adding catalyst particles to the crosslinked-ionomer solution to produce a catalyst ink. The ionomer premix includes an ionomer dispersed within a solvent. The catalyst ink includes the catalyst particles distributed homogenously therethrough. The catalyst ink may be cast onto a porous substrate and dried to thereby form a catalyst layer for use in a fuel cell.

The present disclosure provides compositions, articles thereof, and methods of forming compositions. In at least one aspect, a composition includes (1) an epoxy, (2) an amino or amido hardener, (3) a polyaniline, (4) a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a salicylate, a benzoate, a glycolate, a phosphate, a sulfonate, an oxalate, or combination(s) thereof; and (5) a pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof. The polyaniline+dopant comprises greater than 6 wt %, by weight of the composition. In at least one aspect, a method includes introducing an acid form of a polyaniline to a hydroxide to form a polyaniline hydroxide. The method includes introducing a dopant to the polyaniline hydroxide to form a doped polyaniline.

The present disclosure provides compositions, articles thereof, and methods of forming compositions. In at least one aspect, a composition includes (1) an epoxy, (2) an amino or amido hardener, (3) a polyaniline, (4) a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a salicylate, a benzoate, a glycolate, a phosphate, a sulfonate, an oxalate, or combination(s) thereof; and (5) a pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof. The polyaniline+dopant comprises greater than 6 wt %, by weight of the composition. In at least one aspect, a method includes introducing an acid form of a polyaniline to a hydroxide to form a polyaniline hydroxide. The method includes introducing a dopant to the polyaniline hydroxide to form a doped polyaniline.

The present application relates to a coating composition and wood article manufactured therefrom, the coating composition comprising: (A) a film-forming resin composition comprising a reactive donor capable of providing two or more nucleophilic carbanions, and a reactive acceptor comprising two carbon-carbon double bonds; (B) a catalyst for catalyzing the Michael addition crosslinking reaction between the reactive donor and the reactive acceptor, wherein at least one of the reactive acceptor and the reactive donor comprises an aromatic ring structure, and wherein the polymer formed by homopolymerization of the reactive acceptor has a Tg of 100° C. or higher.

The present application relates to a coating composition and wood article manufactured therefrom, the coating composition comprising: (A) a film-forming resin composition comprising a reactive donor capable of providing two or more nucleophilic carbanions, and a reactive acceptor comprising two carbon-carbon double bonds; (B) a catalyst for catalyzing the Michael addition crosslinking reaction between the reactive donor and the reactive acceptor, wherein at least one of the reactive acceptor and the reactive donor comprises an aromatic ring structure, and wherein the polymer formed by homopolymerization of the reactive acceptor has a Tg of 100° C. or higher.

The present invention provides an addition-curable self-adhesive silicone rubber composition and a silicone rubber cured product.

An addition-curable self-adhesive silicone rubber composition which contains:

a predetermined amount of (A) an alkenyl group-containing organopolysiloxane which has at least two alkenyl groups that are bonded to silicon atoms in each molecule;

a predetermined amount of (B-1) an organosilicon compound having 1-100 silicon atoms, which has at least one phenylene skeleton in each molecule, while having at least one hydrogen atom that is bonded to a silicon atom;

a predetermined amount of (B-2) an organohydrogen polysiloxane which contains at least two hydrogen atoms that are bonded to silicon atoms in each molecule, and which does not contain an aromatic group;

a predetermined amount of (C) a platinum-based catalyst;

a predetermined amount of (D) a benzotriazole derivative; and

a predetermined amount of (E) an acetylene alcohol compound or a compound which is obtained by modifying an alcoholic hydroxyl group of the acetylene alcohol compound with a silane or a siloxane.

The present invention provides an addition-curable self-adhesive silicone rubber composition and a silicone rubber cured product.

An addition-curable self-adhesive silicone rubber composition which contains:

a predetermined amount of (A) an alkenyl group-containing organopolysiloxane which has at least two alkenyl groups that are bonded to silicon atoms in each molecule;

a predetermined amount of (B-1) an organosilicon compound having 1-100 silicon atoms, which has at least one phenylene skeleton in each molecule, while having at least one hydrogen atom that is bonded to a silicon atom;

a predetermined amount of (B-2) an organohydrogen polysiloxane which contains at least two hydrogen atoms that are bonded to silicon atoms in each molecule, and which does not contain an aromatic group;

a predetermined amount of (C) a platinum-based catalyst;

a predetermined amount of (D) a benzotriazole derivative; and

a predetermined amount of (E) an acetylene alcohol compound or a compound which is obtained by modifying an alcoholic hydroxyl group of the acetylene alcohol compound with a silane or a siloxane.

The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.