Alkylene Oxide Adducts of Oligosaccharides

• US 20100292191A1
• Filed: 12/11/2008
• Published: 11/18/2010
• Est. Priority Date: 12/20/2007
• Status: Abandoned Application

• Current Assignee: Cognis IP Management GmbH (BASF SE)
• Original Assignee: Cognis IP Management GmbH (BASF SE)
• Inventors: Mainx, Hans-Georg, Hofer, Peter
• Application Number:
  US12/809,894
• Publication Number:
  US 20100292191A1
• Time in Patent Office: Days
• US Class Current: 514/114
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 57/20 containing acyclic or cycloaliphatic radicals
• CPC Class Codes: C07H 15/08 Polyoxyalkylene derivatives

Abstract

The invention is related to alkylene oxide adducts of oligosaccharides, obtained by a process comprising alkoxylating at least one water-soluble oligosaccharide in aqueous solution at a temperature in the range of 90 to 160° C. The compounds are useful as adjuvants in agrochemical compositions.

Claims

1. An alkylene oxide adduct of an oligosaccharide having a low content of polyglycolethers, obtained by a process comprising alkoxylating at least one water-soluble oligosaccharide in aqueous solution at a temperature in the range of 90 to 160°

C., wherein said content of polyglycolethers is less than 5% by weight.

9. A method of producing crop protection compositions, comprising adding the alkylene oxide adducts of oligosaccharides of claim 1 to an agricultural composition base.

10. The method of claim 9, wherein said alkylene oxide adducts of oligosaccharides are added as adjuvants, tank-mix adjuvants or formulation aids for making said crop protection compositions.

2. A process for making alkylene oxide adducts of oligosaccharides having a low content of polyglycolethers, comprising alkoxylating an aqueous solution of at least one water-soluble oligosaccharide at a temperature in the range of 90 to 160°

C., wherein said content of polyglycolethers is less than 5% by weight.

3. The process of claim 2, wherein said water-soluble oligosaccharide is selected from the group consisting of saccharose, maltose and maltotriose.

4. The process of claim 2, wherein said water-soluble oligosaccharide comprises a product of the chemical or enzymatic degradation of polysaccharides.

5. The process of claim 4, wherein said polysaccharides comprise celluloses, starches or waste material from the sugar industry.

6. The process of claim 2, wherein the alkoxylation step comprises reaction with ethylene oxide, propylene oxide or mixtures thereof.

7. The process of claim 6, wherein alkoxylation is conducted with a mixture of ethylene oxide and propylene oxide, either blockwise or randomised.

8. The process of claim 2, wherein on average 1 to 50 moles of alkylene oxide are added per mole of oligosaccharide.

11. An agricultural composition comprising:

(a) one or more alkylene oxide adducts of oligosaccharides, and

(b) one or more biocides.

12. The agricultural composition of claim 11 comprising:

(a) 1 to 50% by weight of one or more alkylene oxide adducts of oligosaccharides, and

(b) 50 to 99% by weight of one or more biocides,

based on the composition.