公开(公告)号：DE2706275A1

公开(公告)日：1978-08-17

申请号：DE2706275

申请日：1977-02-15

Applicant: BASF AG

Inventor： JUNG JOHANN ,  HENJES GUENTER ,  MAIER SIEGFRIED DIPL ING DR

IPC: C05B17/00 ,  C05D9/00 ,  C05G3/04

Abstract: New lawn-care agents contain (a) 30-60 wt.% clay mineral, (b) 10-30 wt.% colloidal silicic acid, and (c) nutrients comprising 3-7 wt.% N, 2.5-6 wt.% P2O5, 0-6 wt.% K2O and 0-2 wt.% MgO. Used as fertiliser and soil-improving agent for lawns, including home-garden lawns, public spaces, roadside verges, etc. Simple granulation or compaction gives abrasion-resistant granulate formulations without the need for special additives. Compaction followed by comminution gives a product 50-60% of which has a particle size of 1.5-4 mm. Pref. clay minerals are kaolin and bentonite. In an example, a composition contains, per 100 kg, 47.1 kg. bentonite, 22.9 kg (NH4)2SO4, 10.0 kg. potash magnesia (30% K2O, 10% MgO), and 20.0 kg. alkali silicate + phosphoric acid (45 wt.% SiO2, 20 wt.% P2O5).

公开(公告)号：DE2644732A1

公开(公告)日：1978-04-06

申请号：DE2644732

申请日：1976-10-04

Applicant: BASF AG

Inventor： MAIER SIEGFRIED DIPL ING DR ,  ROTHER EBERHARD DIPL CHEM DR ,  POTTGIESSER HERMANN DIPL CHEM ,  RESCH HERMANN ING GRAD

IPC: B01J2/30 ,  C05G3/00

Abstract: Dust-free and non-caking granular materials, especially broken granules from fertilisers and salts are prepared by applying coatings consisting of polymer mixtures. The granular materials have applied to them aqueous suspensions or solutions of a) urea-aldehyde condensation products and/or alkylol ureas and b) polyenes, the amount of solid applied being from 0.3 to 4.0% by weight, based on the amount of granular material.