Low-emission formaldehyde donor preparations

1. A composition with reduced formaldehyde and amine emission which may be used as a preservative, comprising:

a) between about 70% to about 95%, by weight, of N,N′-methylenebis(5-methyloxazolidine);

b) between about 2.5% to about 15%, by weight, of urea; and

c) between about 2.5% to about 15%, by weight, of monoethylene glycol,

wherein said composition comprises less than about 10%, by weight, of water.

2. The composition of claim 1 , further comprising at least one O-formal.

3. The composition of claim 2 , wherein said O-formal comprises at least one member selected from the group consisting of:

a) (ethylenedioxy)dimethanol;

b) benzyl alcohol hemiformal;

c) propylene glycol hemiformal; and

d) butyl diglycol hemiformal.

4. The composition of claim 1 , further comprising at least one emission reducing additive selected from the group consisting of:

a) glycoluril;

b) tetramethylolglycoluril;

c) dimethylhydantoin;

d) dimethyloldimethylhydantoin;

e) dimethylolurea;

f) tetramethanolurea;

g) imdazolidinylurea; and

h) diazolidinylurea.

5. The composition of claim 1 , further comprising at least one odor modifying additive, wherein said modifying additive comprises at least one member selected from the group consisting of:

a) alcohols; and

b) glycol ethers.

6. The composition of claim 5 , wherein said odor modifying additive further comprises at least one member selected from the group consisting of:

a) phenoxyethanol;

b) phenoxypropanols;

c) benzyl alcohol;

d) phenethyl alcohol;

e) phenylpropanols;

f) phenylbutanols; and

g) phenylpentanols.

7. The composition of claim 1 , further comprising at least one biocide, wherein said biocide comprises at least one member selected from the group consisting of:

a) boric esters;

b) boric acid salts;

c) lactic acid derivatives;

d) pyridine derivatives;

e) phenols; and

f) parabens.

8. The composition of claim 1 , further comprising at least one secondary additive, wherein said secondary additive comprises at least one member selected from the group consisting of:

a) solvents;

b) solubility promoters;

c) corrosion inhibitors;

d) alkalinizing agents;

e) dyes;

f) perfumes;

g) viscosity modifying agents;

h) foam inhibitors;

i) emulsifiers; and

j) antioxidants.

9. The composition of claim 8 , wherein said antioxidant comprises at least one member selected from:

a) gallic esters;

b) phenol derivatives;

c) L-ascorbic acid;

d) L-ascorbic salts;

e) L-ascorbic derivatives;

f) tocopherols; and

g) tocopherol derivatives.

10. The composition of claim 1 , wherein the weight ratio of said emission reducing additive to said monoethylene glycol is between about 1:10 to about 10:1.

11. The composition of claim 10 , wherein said ratio is between about 1:5 to about 5:1.

12. The composition of claim 11 , wherein said ratio is between about 1:2 to about 2:1.

13. The composition of claim 1 , wherein said composition comprises less than about 5%, by weight, of water.

14. The composition of claim 13 , wherein said composition comprises less then 1%, by weight, of water.

15. The composition of claim 14 , wherein said composition is an anhydrous composition.

16. A composition with reduced formaldehyde and amine emission, which may be used as a preservative comprising:

a) between about 80% to about 92%, by weight, of N,N′-methylenebis(5methyloxazolidine);

b) between about 5% to about 10%, by weight, of urea; and

c) between about 5% to about 10%, by weight, of monoethylene glycol,

wherein said composition comprises less than about 10%, by weight, of water.

17. A composition with reduced formaldehyde and amine emission, which maybe used as a preservative comprising:

a) between about 84% to about 88%, by weight, of N,N′-methylenebis(5-methyloxazolidine);

b) between about 5% to about 10%, by weight, of urea; and

c) between about 5% to about 10%, by weight, of monoethylene glycol,

wherein said composition comprises less than about 10%, by weight, of water.

18. The composition of claim 17 , wherein said composition comprises about 86%, by weight, of said N,N′-methylenebis(5-methyloxazolidine).

19. A method which may be used for preserving products, said method comprising combining a composition with a product so as to preserve said product, wherein said composition comprises:

a) at least one N-formal;

b) at least one emission reducing additive, wherein said reducing additive comprises at least one member selected from the group consisting of:

1) urea;

2) urea derivatives;

3) amino acids;

4) guanidine; and

5) guandine derivatives; and

c) monoethylene glycol,

and said composition comprises less than about 10%, by weight, of water.

20. The method of claim 19 , wherein said product comprises at least one member selected from the group consisting of:

a) a cutting fluid;

b) a propellant;

c) a surface coating;

d) a dispersion; and

e) a water based paint.

21. A method which may be used for reducing an emission of a composition, comprising:

reducing an emission of a first composition by adding a second composition to said first composition, wherein:

a) said emission comprises at least one member selected from the group consisting of:

1) a formaldehyde emission; and

2) an amine emission;

b) said first composition comprises:

1) at least one N-formal; and

2) monoethylene glycol; and

c) said second composition comprises at least one member selected from the group consisting of:

1) urea;

2) urea derivatives;

3) amino acids;

4) guanidine; and

5) guanidine derivatives; and

d) said first composition and said second composition, in combination, comprise less than about 10%, by weight, of water.

22. A method which may be used for reducing an emission of a composition, comprising:

reducing an emission of a composition by adding monoethylene glycol to said composition, wherein:

a) said emission comprises at least one member selected from the group consisting of:

1) a formaldehyde emission; and

2) an amine emission; and

b) said composition comprises:

1) at least one N-formal;

2) urea;

3) urea derivatives;

4) amino acid;

5) guanidine; and

6) guanidine derivatives,

wherein said composition with said added monoethylene glycol comprises less than about 10%, by weight, of water.

23. A method which may be used for reducing an emission of a composition, comprising:

reducing an emission of a composition by adding a mixture to said composition; and

stripping off water from the composition with the added mixture, wherein:

a) said emission comprises at least one member selected from the group consisting of:

1) a formaldehyde emission; and

2) an amine emission;

b) said composition comprises at least one N-formal; and

c) said mixture comprises:

1) monoethylene glycol;

2) urea;

3) urea derivatives;

4) amino acids;

5) guanidine; and

6) guanidine derivatives.