Method of applying an active substance to plants and a suitable preparation

US6063392A · kind A · utility

Assignee

• LTS Lohmann Therapie-Systeme AG · DE

Inventors

• Malgorzata Kloczko · Linz, DE
• Michael Roreger · Neuwied, DE

Key dates

• Filing date: Jul 15, 1998
• Grant date: May 16, 2000
• Expiry date: Jul 15, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S47/01
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method of applying a layer-form active ingredient depot with delayed release of active ingredients to plants or plant parts, having at least one pressure-sensitively adhering matrix layer (A) which comprises active ingredient and is in two-dimensional contact with the plant surface, and one back layer (B) which is essentially free from and impermeable to active ingredient and is on the side remote from the plant is characterized in that the layer (A) is produced by painting in the desired two-dimensional pattern at the site of application on the plant from a spreadable, pressure-sensitively adhering, polymer-based composition which comprises active ingredient and then on the said layer (A) the layer (B) is produced by painting or spraying.