Patent · US Expired

Process for the encrusting, pilling or granulating of seed material

US4258074A · kind A · utility

4Cited by

4References

5Claims

0Family size

Assignee

Saat- und Erntetechnik GmbH · DE

Inventors

Hans Grimm · Ochsenhausen, DE
Ralf Dabrowski · Hilden, DE

Key dates

Filing date	Oct 25, 1978
Grant date	Mar 24, 1981
Priority date	—
Expiry date	Oct 25, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2991
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process for the gas and liquid-permeable encrusting, pilling and granulating of seed material with the utilization of a three-layer mineral as a laminar coating material which is expandable under the effect of a liquid; the three-layer mineral being constituted of vermiculite or hydrous mica to form the basic material and providing a fine-grained reversibly expandable coating material when applied onto the seed, and which rapidly absorbs and gives off polar liquids such as water. The basic material consists of particles in the form of extremely thin, uniformly even platelets which comprise over 50% of the basic material.

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