Patent · US Expired

Injection method for administering microparticles containing active substances to plants

US6103251A · kind A · utility

0Cited by

4References

4Claims

0Family size

Assignee

LTS Lohmann Therapie-Systeme AG · DE

Inventors

Hans-Rainer Hoffmann · Neuwied, DE
Malgorzata Kloczko · Linz, DE
Michael Roreger · Neuwied, DE

Key dates

Filing date	Sep 14, 1998
Grant date	Aug 15, 2000
Priority date	—
Expiry date	Sep 14, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01N25/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A process for the administration of a flowable solid, semisolid, or liquid medium exhibiting a controlled release of at least one active substance to plants by means of injection using needle-free, pressure-actuated devices is characterized in that the medium comprises active substance-containing microparticles of a maximum size of 100 .mu.m including the following components: PA1 a) 0.5-70%-wt. of at least one active substance, PA1 b) 10-70%-wt. of at least one biodegradable polymer, PA1 c) up to 20%-wt. of formulation adjuvants.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.