Patent ID: 11910739
Assignee: S+DB B.V.
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A process for the preparation of a seed support that comprises a biodegradable polymer film having a plurality of seeds at least partially embedded therein, the process comprising the steps of
(a) providing a hydrophobic release liner;
(b) applying a coating of an aqueous dispersion or solution comprising a biodegradable polymer on the hydrophobic release liner, wherein the dispersion or solution has a viscosity of from 4000 to 16000 mPa·s and a water content of from 58% to 90% by weight of the coating;
(c) depositing a plurality of seeds onto the coating so that the seeds become at least partially embedded in the coating;
(c-i) partially drying the coating and applying a porous reinforcing layer to the coating when the coating has partially dried and while the coating is still sufficiently tacky for the reinforcing layer to adhere to the coating;
(d) further drying the coating to give a final water content of 1.5% to 15% by weight and thereby form the biodegradable polymer film; and
(e) detaching the hydrophobic release liner from the biodegradable polymer film to give the seed support.