Freshening compositions comprising malodor binding polymers and malodor control components

Abstract

Freshening compositions comprising a malodor binding polymer, malodor control components, and an aqueous carrier; and methods thereof are provided. In some embodiments, the freshening composition comprises a homopolymeric polyethylenimine having a molecular weight of about 1,000 to about 2,000,000 and a mixture of volatile aldehydes. Such freshening compositions may be used to reduce malodor and/or microbes on inanimate surfaces or in the air.

1 . A freshening composition for reducing malodor comprising:
 an effective amount of a malodor binding polymer;   a malodor control component comprising an effective amount of a mixture of two or more volatile aldehydes for neutralizing a malodor, wherein said two or more volatile aldehydes are selected from the group consisting of 2-ethoxy benzylaldehyde, 2-isopropyl-5-methyl-2-hexenal, 5-methyl furfural, 5-methyl-thiophene-carboxaldehyde, adoxal, p-anisaldehyde, benzylaldehyde, bourgenal, cinnamic aldehyde, cymal, decyl aldehyde, floral super, florhydral, helional, lauric aldehyde, ligustral, lyral, melonal, o-anisaldehyde, pino acetaldehyde, P.T. bucinal, thiophene carboxaldehyde, trans-4-decenal, trans trans 2,4-nonadienal, undecyl aldehyde, and mixtures thereof; and   an aqueous carrier.   
     
     
         2 . The composition of  claim 1  wherein said malodor binding polymer is a polyamine having a molecular weight of at least 150 Daltons and 15% to 80% primary amino groups 
     
     
         3 . The composition of  claim 1  wherein said malodor binding polymer is a homopolymeric polyethyleneimine having a molecular weight of about 1,000 to about 2,000,000 Daltons. 
     
     
         4 . The composition of  claim 1  wherein said malodor binding polymer is present in an amount of about 0.01% to about 1% by weight of said composition. 
     
     
         5 . The composition of  claim 3  wherein said homopolymeric polyethyleneimine is present in an amount of about 0.01% to about 0.07% by weight of said composition. 
     
     
         6 . The composition of  claim 1  wherein said malodor binding polymer is a homopolymeric polyethyleneimine having a molecular weight of about 25,000 Daltons. 
     
     
         7 . The malodor control component of  claim 1  wherein said two or more volatile aldehydes are selected from the group consisting of 2-ethoxy benzylaldehyde, 2-isopropyl-5-methyl-2-hexenal, 5-methyl furfural, cinnamic aldehyde, floral super, florhydral, o-anisaldehyde, pino acetaldehyde, trans-4-decenal, and mixtures thereof. 
     
     
         8 . The malodor control component of  claim 1  wherein said two or more volatile aldehydes comprise flor super and o-anisaldehyde. 
     
     
         9 . The malodor control component of  claim 1  wherein said two or more volatile aldehydes have a VP from about 0.001 torr to about 0.100 torr. 
     
     
         10 . The malodor control component of  claim 1  wherein said two or more volatile aldehydes comprise a mixture of volatile aldehydes selected from the group consisting of: Accord A, Accord B, Accord C, and mixtures thereof. 
     
     
         11 . The malodor control component of  claim 1  wherein said two or more volatile aldehydes comprise a mixture of volatile aldehydes comprising about 1% to about 10% of Accord A, by weight of said malodor control component. 
     
     
         12 . The composition of  claim 1  wherein said malodor control component further comprises about 0.001% to about 1% of an aliphatic aldehyde by total weight of said composition. 
     
     
         13 . The composition of  claim 1  wherein said composition further comprises a buffering agent selected from the group consisting of carboxylic acid, dicarboxcylic acid, N-(2-Acetamido)-2-aminoethanesulfonic acid, and mixtures thereof. 
     
     
         14 . The composition of  claim 1  wherein said composition further comprises maleic acid. 
     
     
         15 . The composition of  claim 1  wherein said composition comprises a pH of about 5 to 8. 
     
     
         16 . The composition of  claim 1  wherein said composition is free of anionic surfactants. 
     
     
         17 . The composition of  claim 1  wherein said composition comprises no more than 3% surfactant by weight of said composition. 
     
     
         18 . The composition of  claim 1  wherein said aqueous carrier is present in an amount of 90% to about 99.5%. 
     
     
         19 . A freshening composition for reducing malodor comprising:
 an effective amount of a malodor binding polymer; and   a malodor control component comprising:
 at least one volatile aldehyde; and 
 an acid catalyst having a vapor pressure of about 0.01 to about 13 at 25° C. 
   
     
     
         20 . The composition of  claim 19  wherein said acid catalyst has a vapor pressure of about 0.01 to about 2 torr at 25° C. 
     
     
         21 . The composition of  claim 19  wherein said acid catalyst is a carboxylic acid. 
     
     
         22 . The composition of  claim 19  wherein said acid catalyst is 5-methyl thiophene carboxylic acid. 
     
     
         23 . The composition of  claim 19  wherein said acid catalyst is present in an amount from about 0.1% to about 0.4%, by weight of said malodor control component. 
     
     
         24 . The composition of  claim 19  wherein said acid catalyst is present in an amount of about 0.4%, by weight of said malodor control component. 
     
     
         25 . The composition of  claim 19  wherein said at least one volatile aldehyde is a mixture of two or more volatile aldehydes selected from the group consisting of 2-ethoxy benzylaldehyde, 2-isopropyl-5-methyl-2-hexenal, 5-methyl furfural, 5-methyl-thiophene-carboxaldehyde, adoxal, p-anisaldehyde, benzylaldehyde, bourgenal, cinnamic aldehyde, cymal, decyl aldehyde, floral super, florhydral, helional, lauric aldehyde, ligustral, lyral, melonal, o-anisaldehyde, pino acetaldehyde, P.T. bucinal, thiophene carboxaldehyde, trans-4-decenal, trans trans 2,4-nonadienal, undecyl aldehyde, and mixtures thereof. 
     
     
         26 . The composition of  claim 19  wherein said a malodor binding polymer is a homopolymeric polyethyleneimine present in an amount of about 0.01% to about 0.07%, by weight of said composition. 
     
     
         27 . The composition of  claim 19  wherein said malodor binding polymer is a homopolymeric polyethyleneimine having a molecular weight of about 25,000 Daltons. 
     
     
         28 . A method of reducing malodor comprising the steps of:
 a. providing the freshening composition of  claim 1 ;   b. dispersing an effective amount of said freshening composition on an inanimate surface or in the air.   
     
     
         29 . A method of neutralizing malodor comprising the step of:
 a. providing the freshening composition of  claim 19 ;   b. dispersing an effective amount of said freshening composition on an inanimate surface of in the air.