Anti-caking agent for soil

Patent metadata

Field	Value
Publication number	US-11091698-B2
Application number	US-201816648747-A
Country	US
Kind code	B2
Filing date	Sep 25, 2018
Priority date	Sep 27, 2017
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

An anti-caking agent for soil includes, as effective ingredients: a lignin having a molecular weight peak, as measured by GPC molecular weight analysis using a UV detector at a wavelength of 254 nm, within the molecular weight range of 10,000 to 40,000; and a diatomaceous earth. A method of improving the growth of a plant uses the above described anti-caking agent for soil. The anti-caking agent for soil has the effect of reducing the caking of soil and improving the poor growth of a plant.

First claim

The invention claimed is:

1. An anti-caking agent for soil comprising, as effective ingredients: a lignin having a molecular weight peak within the molecular weight range of 10,000 to 40,000, as measured by GPC molecular weight analysis using a UV detector at a wavelength of 254 nm; and a diatomaceous earth.

2. The anti-caking agent for soil according to claim 1 , wherein said lignin is an alkaline extract of bagasse.

3. The anti-caking agent for soil according to claim 1 , wherein a dry weight ratio of said lignin to said diatomaceous earth is 1:1 to 1:3.

4. A method of preventing caking of soil, the method comprising mixing the anti-caking agent for soil according to claim 1 and soil.

5. A method of improving growth of a plant, the method comprising mixing the anti-caking agent for soil according to claim 1 and soil; and growing the plant using the soil.

6. The anti-caking agent for soil according to claim 2 , wherein a dry weight ratio of said lignin to said diatomaceous earth is 1:1 to 1:3.

7. An anti-caking agent for soil comprising, as effective ingredients: a lignin having a molecular weight peak within the molecular weight range of 10,000 to 40,000, as measured by GPC molecular weight analysis using a UV detector at a wavelength of 254 nm; and a diatomaceous earth, wherein a dry weight ratio of a total amount of the lignin and the diatomaceous earth to a total amount of other conditioner(s) comprising the anti-caking agent is not more than 3.

Assignees

• Toray Industries

Inventors

• Funada Shigeyuki
• Arai Takahiro
• Kurihara Hiroyuki
• Yamada Katsushige

Classifications

• C09K2101/00

  Agricultural use · CPC title

• A01G24/27

  Pulp, e.g. bagasse · CPC title

• C09K17/40 Primary

  containing mixtures of inorganic and organic compounds · CPC title

• C05G3/80 Primary

  Soil conditioners · CPC title

• C05G3/70

  for affecting wettability, e.g. drying agents · CPC title