The present invention provides a pressure-sensitive adhesive composition, including a copolymer obtained by polymerizing (A) at least one of unsaturated compounds represented by the following formula (1) and (B) at least one selected from the group consisting of: an unsaturated carboxylic acid; and an unsaturated carboxylic acid ester compound except for the component (A), a method of producing the pressure-sensitive adhesive composition, and a re-peelable sheet:

##STR00001##

wherein R.sup.1 represents a hydrocarbon group or acyl group having 8 to 36 carbon atoms, A.sup.1 and A.sup.2 each independently represent an alkylene group having 2 to 4 carbon atoms, L represents a group represented by the following general formula (2), “z” represents a number from 1 to 10, X represents a hydrogen atom or an ionic hydrophilic group, “m” represents a number from 0 to 100, and “n” represents a number from 0 to 100;

##STR00002##

wherein R.sup.2 and R.sup.3 each independently represent a hydrogen atom or a methyl group, “x” represents a number from 0 to 12, and “y” represents a number of 0 or 1.

The present invention provides a pressure-sensitive adhesive composition, including a copolymer obtained by polymerizing (A) at least one of unsaturated compounds represented by the following formula (1) and (B) at least one selected from the group consisting of: an unsaturated carboxylic acid; and an unsaturated carboxylic acid ester compound except for the component (A), a method of producing the pressure-sensitive adhesive composition, and a re-peelable sheet:

##STR00001##

wherein R.sup.1 represents a hydrocarbon group or acyl group having 8 to 36 carbon atoms, A.sup.1 and A.sup.2 each independently represent an alkylene group having 2 to 4 carbon atoms, L represents a group represented by the following general formula (2), “z” represents a number from 1 to 10, X represents a hydrogen atom or an ionic hydrophilic group, “m” represents a number from 0 to 100, and “n” represents a number from 0 to 100;

##STR00002##

wherein R.sup.2 and R.sup.3 each independently represent a hydrogen atom or a methyl group, “x” represents a number from 0 to 12, and “y” represents a number of 0 or 1.

An effect paint for automobiles, comprising water, a dispersant (A), cellulose nanofibers (B), and an effect pigment (C).

An effect paint for automobiles, comprising water, a dispersant (A), cellulose nanofibers (B), and an effect pigment (C).

An aqueous binder composition for a secondary battery electrode is provided, comprising a copolymer and a dispersion medium, wherein the copolymer comprises a structural unit (a) derived from a carboxylic acid group-containing monomer, a structural unit (b) derived from an amide group-containing monomer and a structural unit (c) derived from a nitrile group-containing monomer, with an improved binding capability. In addition, battery cells comprising the cathode prepared using the binder composition disclosed herein exhibits exceptional electrochemical performance.

An aqueous binder composition for a secondary battery electrode is provided, comprising a copolymer and a dispersion medium, wherein the copolymer comprises a structural unit (a) derived from a carboxylic acid group-containing monomer, a structural unit (b) derived from an amide group-containing monomer and a structural unit (c) derived from a nitrile group-containing monomer, with an improved binding capability. In addition, battery cells comprising the cathode prepared using the binder composition disclosed herein exhibits exceptional electrochemical performance.

A surfactant stabilized vinyl acetate ter-polymer based emulsion is provided comprising surfactant combination based freeze thaw stabilized vinyl acetate ter-polymer emulsion wherein said surfactant combination comprises non-ionic surfactant in combination with at least two polymerizable anionic reactive surfactants. A process of manufacturing the said emulsion is also provided, which process in comprising of selective sequence based steps and upon employing selective amounts of ingredients provides for said freeze thaw stable emulsion that is freeze thaw stable upto at least 5 cycles of freezing and thawing and yet maintains a particle size of 130-150 nm.

A surfactant stabilized vinyl acetate ter-polymer based emulsion is provided comprising surfactant combination based freeze thaw stabilized vinyl acetate ter-polymer emulsion wherein said surfactant combination comprises non-ionic surfactant in combination with at least two polymerizable anionic reactive surfactants. A process of manufacturing the said emulsion is also provided, which process in comprising of selective sequence based steps and upon employing selective amounts of ingredients provides for said freeze thaw stable emulsion that is freeze thaw stable upto at least 5 cycles of freezing and thawing and yet maintains a particle size of 130-150 nm.

Methods are provided to inhibit scale formation in oil or gas production systems. In one embodiment, the scale inhibiting treatment comprises: A) an AAA terpolymer and B) a polycarboxylate such as a polyepoxy succinic acid (PESA). The treatment can be added to these systems in the well area itself, to the well annulus and its associated tubes, casings, etc., to the oil or gas bearing subterranean formation, to injection conduits for injection of steam or fracking fluid to the subterranean formation, to the produced water, or to equipment in fluid contact with the produced water.

Methods are provided to inhibit scale formation in oil or gas production systems. In one embodiment, the scale inhibiting treatment comprises: A) an AAA terpolymer and B) a polycarboxylate such as a polyepoxy succinic acid (PESA). The treatment can be added to these systems in the well area itself, to the well annulus and its associated tubes, casings, etc., to the oil or gas bearing subterranean formation, to injection conduits for injection of steam or fracking fluid to the subterranean formation, to the produced water, or to equipment in fluid contact with the produced water.