Dazomet compositions
View Patent ↗A solid body of dazomet for use in internal remedial treatments of wood and methods of applying such solid bodies to wooden structures and manufacturing such solid bodies. The solid bodies can be easily transported and inserted into treatment holes in utility poles, wooden pilings, and other wooden structures, delivering a precise, accurate dose of insecticide and fungicide that combats internal decay in the wood.
1. A composition comprising
a flowable mixture of
between 93% and 96% solid tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione, by weight of the composition;
between 0.5% and 5.0% of a saturated oil, by weight of the composition; and
between 1% and 5% of a polysaccharide, by weight of the composition.
2. The composition of claim 1 , wherein the solid tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione is in the form of granules or a powder.
3. The composition of claim 1 , wherein the saturated oil is a hydrogenated oil.
4. The composition of claim 3 , wherein the saturated oil is a hydrogenated vegetable oil.
5. The composition of claim 1 , wherein the polysaccharide is a starch.
6. The composition of claim 5 , wherein the starch is a maltodexrin.
7. The composition of claim 1 , wherein the composition is water-free.
8. A product for internal remedial treatment of wood consisting of
a sheathless rod of a compressed dazomet composition,
wherein the dazomet composition consists of
between 90% and 96% solid tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione, by weight of the composition;
between 0.5% and 5.0% of a saturated oil, by weight of the composition;
between 1% and 5% of a polysaccharide, by weight of the composition;
and
an accelerant;
wherein the rod has a length of about 100 millimeters to about 350 millimeters; and
wherein the dazomet composition is flowable before compression.
9. The product of claim 8 , wherein the rod has a diameter of about 5 millimeters to about 30 millimeters.
10. The product of claim 8 , wherein the rod has a weight of between 10 grams and 500 grams.
11. The product of claim 8 , wherein the accelerant is selected from the group consisting of copper naphthenate, copper sulfate, copper carbonate, basic copper carbonate, copper hydroxide, cupric oxide, cuprous oxide, copper oxychloride, copper dimethyldithiocarbamate, copper borate and zinc naphthenate.
12. The product of claim 8 , wherein the solid tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione is in the form of granules or a powder.
13. The product of claim 8 , wherein the saturated oil is a hydrogenated oil.
14. The product of claim 13 , wherein the saturated oil is a hydrogenated vegetable oil.
15. The product of claim 8 , wherein the polysaccharide is a starch.
16. The product of claim 15 , wherein the starch is a maltodexrin.
17. The product of claim 8 , wherein the dazomet composition comprises between 93% and 96% solid tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione, by weight of the composition.
18. A
flowable mixture consisting of
between 90% and 96% solid dazomet, by weight of the composition;
between 0.5% and 5% of a saturated oil, by weight of the composition; and
between 1% and 5% of a polysaccharide, by weight of the composition.
19. The composition of claim 18 , wherein the solid dazomet comprises tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione in the form of granules or a powder.
20. The composition of claim 19 , wherein the hydrogenated oil comprises a hydrogenated vegetable oil.
21. The composition of claim 18 , wherein the saturated oil is a hydrogenated oil.
22. The composition of claim 18 , wherein the polysaccharide is a starch.
23. The composition of claim 22 , wherein the starch comprises maltodexrin.
24. A product for internal remedial treatment of wood comprising the composition of claim 18 compressed into a solid body.
25. The product of claim 24 , wherein the solid body is a rod.
26. The product of claim 25 , wherein the rod has a diameter of about 5 millimeters to about 30 millimeters, and a length of about 100 millimeters to about 350 millimeters.
27. The product of claim 25 , wherein the rod has a weight of between 10 grams and 500 grams.
28. The product of claim 24 , wherein the product is sheathless.