# US 4,394,316 A · Copper modified mancozeb

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- Number: US 4,394,316 A
- Document ID: US4394316A
- Status: Granted
- Kind: A
- Application number: 06/186,060
- Filed: 1980-09-11
- Granted: 1983-07-19
- Earliest claimed: 1980-09-11
- Assignees: Rohm and Haas Company
- Inventors: Yen-Yau H. Chao
- Web page: https://patentgrep.com/patent/US4394316A

## CPC

- C07F 13/005: {Compounds without a metal-carbon linkage}
- A01N 25/22: containing ingredients stabilising the active ingredients
- A01N 47/14: Di-thio analogues thereof
- A01N 59/20: Copper
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

This invention relates to copper modified mancozeb (the reaction product of manganese ethylene-bis-dithiocarbamate and soluble zinc (II) ion) and processes for preparing same which produces a product which reduces the generation of ethylene thiourea on long term storage of the product, reduces the solubilized ethylene thiourea produced during the manufacture or storage of mancozeb, maintains or increases the fungicidal activity of mancozeb, and is more persistent in the field.

## Claims

### Claim 1

A copper modified mancozeb which comprises mancozeb reacted with from about 2.5% to about 20% copper (II) ion and a water solubilizing anion or complex thereof.

### Claim 2 (depends on 1)

A copper modified mancozeb according to claim 1 wherein the copper (II) ion is from about 3% to about 10%.

### Claim 3 (depends on 2)

A copper modified mancozeb according to claim 2 wherein the copper (II) ion is from about 4% to about 8%.

### Claim 4 (depends on 1)

A copper modified mancozeb according to claim 1 wherein the water solubilizing anion is selected from the group consisting of halide, nitrate, perchlorate, sulfate, chlorate and bromate.

### Claim 5

A process for preparing copper modified mancozeb which comprises reacting mancozeb with from about 2.5% to about 20% of copper (II) ion, in water in any order at temperatures from about 5.degree. to about 90.degree. C.