Cleaning compositions

Claim 2

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of from about 1 to about 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C., selected from the group consisting of co-polymers of at least one acid monomer and at least one soft monomer, co-polymers of at least one acid monomer and at least one hard monomer, and co-polymers of at least one acid monomer and a mixture of hard and soft monomers, from about 0.1 to about 5 percent, by weight, of a metal salt selected from salts of zinc, cadmium, copper, nickel, cobalt, zirconium, chromium, magnesium, manganese, calcium or mixtures thereof, said composition forming a tacky film which, as a result of the drying of said composition, fractures to form a removable residue.

Claim 3

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of from about 1 to about 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. selected from the group consisting of co-polymers of an acid monomer and a soft monomer, co-polymers of an acid monomer and a hard monomer, and co-polymers of an acid monomer and a mixtures of hard and soft monomers, from about 0.1 to about 5 percent, by weight, of a complex metal salt M(NH 3 ) n Y 2 wherein M is the metal ion Zn++, Cd++, Cu++, or Ni++, n is the coordination number of M and Y is an anion selected from acetate, formate, carbonate, and mixtures thereof and from 98.9 to 45 percent, by weight, water, said composition forming a tacky film which, subsequent to drying, fractures to form a removable residue.

Claim 4

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of from about 1 to about 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. selected from the group consisting of co-polymers of an acid monomer and a soft monomer, co-polymers of an acid monomer and a hard monomer, and co-polymers of an acid monomer and a mixtures of hard and soft monomers, from about 0.1 to about 5 percent, by weight, of a complex metal salt M(NH 3 ) n Y 2 wherein M is the metal ion Zn++, Cd++, Cu++, or Ni++, n is the coordination number of M and Y is an anion selected from acetate, formate, carbonate, and mixtures thereof and from 98.9 to 45 percent, by weight, water, said composition forming a tacky film which, subsequent to drying, fractures to form a removable residue.

Claim 5

A composition as defined by claim 2 wherein M is Zn + + and Y is carbonate.

Claim 6

A composition as defined by claim 1 wherein said cleaning composition comprises from about 3 to about 35 percent, by weight, of said polymer and from 97 to 65 percent water.

Claim 7

A composition as defined by claim 1 wherein said polymer is an acid-free emulsion polymer.

Claim 8

A composition as defined by claim 1 wherein said polymer is alkali soluble.

Claim 9

A composition as defined by claim 1 wherein said acid monomer is acrylic or methacrylic acid.

Claim 10

A composition as defined by claim 1 wherein said acid monomer is methacrylic acid.

Claim 11

A composition as defined by claim 1 wherein said soft monomer is vinyl acetate, an alkyl ester of acrylic acid wherein said alkyl group contains 1-12 carbon atoms, or a higher alkyl ester of methacrylic acid wherein said higher alkyl group contains 4-12 carbon atoms.

Claim 12

A composition as defined by claim 1 wherein said soft monomer is vinyl acetate, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, butyl methacrylate, 2-ethylhexyl methacrylate or lauryl methacrylate.

Claim 13

A composition as defined by claim 1 wherein said hard monomer is a lower alkyl methacrylate wherein said lower alkyl group contains 1-3 carbon atoms, cycloalkyl acrylate and methacrylate wherein said cycloalkyl group contains 5-7 carbon atoms, styrene or acrylonitrile.

Claim 14

A composition as defined by claim 1 wherein said hard monomer is methyl methacrylate, ethyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, styrene or acrylonitrile.

Claim 15

A composition as defined by claim 1 wherein said polymer comprises 60 percent, by weight, methylmethacrylate and 40 percent, by weight, methacrylic acid.

Claim 16

A composition as defined by claim 1 packaged in a pressurized aerosol package, said composition including an effective amount of a propellant to dispense said composition, said propellant selected from the group consisting of normally gaseous hydrocarbons, liquified halogenated hydrocarbons and inert compressible gases.

Claim 17

A composition as defined by claim 14 wherein said cleaning composition comprises from about 3 to about 35 percent, by weight, of said polymer and from 97 to 65 percent water.

Claim 18

The composition of claim 14 wherein said propellant is selected from propane, butane, isobutane, n-pentane, isopentane, dichlorodifluoroethane, dichlorotetrachloroethane, trichlorotrifluoroethane, difluoroethane, nitrous oxide, nitrogen or carbon dioxide.

Claim 19

The composition of claim 1 wherein said metal salt is zinc salt.

Claim 20

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of A. from about 1 to 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. wherein said polymer is selected from the group consisting of co-polymers of at least one acid monomer and at least one soft monomer, co-polymers of at least one acid monomer and at least one hard monomer, and co-polymers of at least one acid monomer and a mixture of hard and soft monomers; B. from about 0.1 to about 5 percent, by weight, of a metal salt selected salts of zinc, cadmium, copper, nickel, cobalt, zirconium, chromium, magnesium, manganese, calcium or mixtures thereof; C. from about 0.1 to about 5 percent, by weight, of a builder selected from tetrapotassium pyrophosphate, tetrasodium, pyrophosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate and sodium metasilicate and mixtures thereof; and D. from about 98.8 to about 40 percent, by weight, water, said composition forming a tacky film, which subsequent to drying, fractures to form a removable residue.

Claim 21

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of A. from about 1 to 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. wherein said polymer is selected from the group consisting of co-polymers of at least one acid monomer and at least one soft monomer, co-polymers of at least one acid monomer and at least one hard monomer, and co-polymers of at least one acid monomer and a mixture of hard and soft monomers; B. from about 0.1 to about 5 percent, by weight, of a metal salt selected salts of zinc, cadmium, copper, nickel, cobalt, zirconium, chromium, magnesium, manganese, calcium or mixtures thereof; C. from about 0.1 to about 5 percent, by weight, of a builder selected from tetrapotassium pyrophosphate, tetrasodium, pyrophosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate and sodium metasilicate and mixtures thereof; and D. from about 98.8 to about 40 percent, by weight, water, said composition forming a tacky film, which subsequent to drying, fractures to form a removable residue.

Claim 22

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of: A. from about 1 to 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. selected from the group consisting of co-polymers of an acid monomer and a soft monomer, co-polymers of an acid monomer and a hard monomer, and co-polymers of an acid monomer and a mixture of hard and soft monomers; B. from about 0.1 to about 5 percent, by weight, of a complex metal salt M(NH 3 ) n Y 2 wherein M is selected from Zn++, Cd++, Cu++, and Ni++, n is the coordination number of M and Y is acetate, formate, or carbonate, or mixtures of complex metal salts; C. from about 0.1 to about 5 percent, by weight, of a builder selected from tetrapotassium pyrophosphate, tetrasodium, pyrophosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate and sodium metasilicate and mixtures thereof; and D. from about 98.9 to about 40 percent, by weight, water, said composition forming a tacky film, which subsequent to drying, fractures to form a removable residue.

Claim 23

An aqueous cleaning composition having a minimum film-forming temperature of at least 30° C. consisting essentially of: A. from about 1 to 50 percent, by weight, of a polymer having a glass transition temperature of at least 35° C. selected from the group consisting of co-polymers of an acid monomer and a soft monomer, co-polymers of an acid monomer and a hard monomer, and co-polymers of an acid monomer and a mixture of hard and soft monomers; B. from about 0.1 to about 5 percent, by weight, of a complex metal salt M(NH 3 ) n Y 2 wherein M is selected from Zn++, Cd++, Cu++, and Ni++, n is the coordination number of M and Y is acetate, formate, or carbonate, or mixtures of complex metal salts; C. from about 0.1 to about 5 percent, by weight, of a builder selected from tetrapotassium pyrophosphate, tetrasodium, pyrophosphate, sodium citrate, sodium carbonate, sodium bicarbonate, sodium borate and sodium metasilicate and mixtures thereof; and D. from about 98.9 to about 40 percent, by weight, water, said composition forming a tacky film, which subsequent to drying, fractures to form a removable residue.

Claim 24

The composition of claim 18 wherein said metal salt is zinc salt.

Claim 25

A composition as defined by claim 19 wherein M is Zn + + and Y is carbonate.

Claim 26

A composition as defined by claim 18 packaged in a pressurized aerosol package, said composition including an effective amount of a propellant to dispense said composition, said propellant selected from the group consisting of normally gaseous hydrocarbons, liquified halogenated hydrocarbons and inert compressible gases.

Claim 27

A composition as defined by claim 18 wherein said cleaning composition comprises from about 3 to about 35 percent, by weight, of said polymer and from 97 to 65 percent water.

Claim 28

The composition of claim 22 wherein said propellant is selected from propane, butane, isobutane, n-pentane, isopentane, dichlorodifluoroethane, dichlorotetrachloroethane, trichlorotrifluoroethane, difluoroethane, nitrous oxide, nitrogen or carbon dioxide.