US4244850A — Air curable latex

Claim 1

Independent Claim 45 words

An air drying and air curable latex coating composition comprising water having dispersed therein unsaturated resin particles which are aqueous emulsion copolymer particles having ethylenically unsaturated side chains thereon, and a drier salt in solution in a water immiscible organic solvent emulsified in said latex.

Claim 2

Dependent Claim 45 words

An air drying and air curable latex coating composition comprising water having dispersed therein unsaturated resin particles which are aqueous emulsion copolymer particles having ethylenically unsaturated side chains thereon, and a drier salt in solution in a water immiscible organic solvent emulsified in said latex.

Claim 3

Dependent Claim 31 words

An air drying and air curable latex coating composition as recited in claim 1 in which said drier salt solution is emulsified in said latex by means of a nonionic surfactant.

Claim 4

Dependent Claim 120 words

An air drying and air curable latex coating composition comprising water having dispersed therein copolymer particles provided by aqueous emulsion copolymerization of monoethylenically unsaturated monomers, said monomers including from 1% to 20% by weight of a monoethylenically unsaturated monomer carrying a reactive groups selected from carboxyl or 1,2-epoxy and the balance of said monomers consisting essentially of nonreactive monomers, at least a portion of the selected reactive groups in the emulsion copolymer particles produced by said copolymerization being reacted in the latex with a monoethylenically unsaturated monomer carrying one of the other of said reactive groups to provide unsaturated groups on said latex particles, and a drier salt in solution in a water immiscible organic solvent emulsified in said latex.

Claim 5

Dependent Claim 120 words

An air drying and air curable latex coating composition comprising water having dispersed therein copolymer particles provided by aqueous emulsion copolymerization of monoethylenically unsaturated monomers, said monomers including from 1% to 20% by weight of a monoethylenically unsaturated monomer carrying a reactive groups selected from carboxyl or 1,2-epoxy and the balance of said monomers consisting essentially of nonreactive monomers, at least a portion of the selected reactive groups in the emulsion copolymer particles produced by said copolymerization being reacted in the latex with a monoethylenically unsaturated monomer carrying one of the other of said reactive groups to provide unsaturated groups on said latex particles, and a drier salt in solution in a water immiscible organic solvent emulsified in said latex.

Claim 6

Dependent Claim 35 words

An air drying and air curable latex coating composition as recited in claim 3 in which said organic solvent is mineral spirits and said drier salt solution is emulsified by means of a nonionic surfactant.

Claim 7

Dependent Claim 38 words

An air drying and air curable latex coating composition as recited in claim 3 in which the reactive monomer carries the carboxyl and at least 5% of the copolymer acidity is consumed by reaction with monoethylenically unsaturated monoepoxide.

Claim 8

Dependent Claim 47 words

An air drying and air curable latex coating composition as recited in claim 5 in which said monoethylenically unsaturated monoepoxide is used in stoichiometric deficiency with respect to the carboxyl groups in the copolymer, said epoxide functionality being consumed in the reaction with the excess carboxyl functionality.

Claim 9

Dependent Claim 50 words

An air drying and air curable latex coating composition as recited in claim 6 in which 10% to 90% of the carboxyl functionality is consumed by reaction with said monoepoxide and said monoepoxide is used in an amount of at least about 0.5% based on the weight of the copolymer.

Claim 10

Dependent Claim 35 words

An air drying and air curable latex coating composition as recited in claim 3 in which said drier salt is present in an amount of from 0.1% to 10% based on the weight of copolymer.

Claim 11

Dependent Claim 51 words

An air drying and air curable latex coating composition as recited in claim 8 in which said copolymer has a T g in the range of 5° C. to -20° C., and said drier salt is present in an amount of from 0.5% to 3% based on the weight of copolymer.

Claim 12

Independent Claim 98 words

A method of producing an air drying and air curable latex coating composition comprising copolymerizing monomers including monomers carrying a reactive group in aqueous emulsion to provide a latex of copolymer particles containing said reactive groups, adding to said latex a monoethylenically unsaturated monomer carrying a functional group reactive with the reactive group in said copolymer particles and then causing reaction to provide unsaturated side chains on said copolymer particles, and then incorporating in said latex a solution of drier salt dissolved in a water immiscible organic solvent to cause said solution to be emulsified into the latex.

Claim 13

Independent Claim 98 words

A method of producing an air drying and air curable latex coating composition comprising copolymerizing monomers including monomers carrying a reactive group in aqueous emulsion to provide a latex of copolymer particles containing said reactive groups, adding to said latex a monoethylenically unsaturated monomer carrying a functional group reactive with the reactive group in said copolymer particles and then causing reaction to provide unsaturated side chains on said copolymer particles, and then incorporating in said latex a solution of drier salt dissolved in a water immiscible organic solvent to cause said solution to be emulsified into the latex.

Claim 14

Dependent Claim 26 words

A method as recited in claim 11 in which nonionic surfactant is added to said drier salt solution before the same is incorporated in said latex.

Claim 15

Dependent Claim 33 words

A method as recited in claim 11 in which said solution of drier salt is preemulsified into water with the aid of a nonionic surfactant, and the preemulsion is added to said latex.

Claim 16

Independent Claim 65 words

A method of producing an air drying and air curable latex coating composition comprising providing a latex of copolymer particles produced by aqueous emulsion compolymerization of monoethylenically unsaturated monomers said copolymer particles having unsaturated side chains thereon, and then incorporating in said latex a solution of drier salt dissolved in a water immiscible organic solvent to cause said solution to be emulsified into the latex.

Claim 17

Independent Claim 65 words

A method of producing an air drying and air curable latex coating composition comprising providing a latex of copolymer particles produced by aqueous emulsion compolymerization of monoethylenically unsaturated monomers said copolymer particles having unsaturated side chains thereon, and then incorporating in said latex a solution of drier salt dissolved in a water immiscible organic solvent to cause said solution to be emulsified into the latex.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1984-01-13	1984-07-14	1985-01-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1988-01-13	1988-07-14	1989-01-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1992-01-13	1992-07-14	1993-01-13	$7700.00	Window Closed / Lapsed

Air curable latex

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