Agent for preventing pollen dispersal

Patent metadata

Field	Value
Publication number	US-9282737-B2
Application number	US-86644609-A
Country	US
Kind code	B2
Filing date	Feb 6, 2009
Priority date	Feb 8, 2008
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

An agent for suppressing pollen dispersal, containing an oleic acid derivative or a linoleic acid derivative as an active ingredient, which does not influence the trunk, branches and leaves of trees, shows a sharp efficacy on the male organ and is in the form of a solution or emulsion having solution stability by diluting with water.

First claim

The invention claimed is:

1. A method for suppressing pollen dispersal, comprising spraying or applying to a male organ of a tree an effective amount of an oleic acid derivative or linoleic acid derivative represented by the following formula (I)

wherein R 1 are residues of an oleic acid ester or a linoleic acid ester, which may be of the same kind or different kinds, O—R 2 are oxyalkylene groups having a carbon number of 2 to 4, which may be of one kind of two or more kinds, and when they are of two or more kinds, they may be block adducts or random adducts;
j and k are 0,
X is a polyvalent organic group having a carbon number of 4 or more,
1 is 0,
n is 2 or 3, and
m+n is 3, 4, 5, or 6, thereby suppressing pollen dispersal.

2. The method for suppressing pollen dispersal according to claim 1 , wherein the oleic acid derivative or linoleic acid derivative is comprised of a ester of oleic acid or linoleic acid and glycerol.

3. The method for suppressing pollen dispersal according to claim 2 , wherein the oleic acid derivative or linoleic acid derivative is in an emulsion comprising a ester of oleic acid or linoleic acid and glycerol in a proportion of 0.5-30 wt %.

4. The method for suppressing pollen dispersal according to claim 1 , wherein the oleic acid derivative or linoleic acid derivative is comprised of an ester of oleic acid or linoleic acid and a polyvalent alcohol having a carbon number of not less than 4.

5. The method for suppressing pollen dispersal according to claim 4 , wherein the oleic acid derivative or linoleic acid derivative is in an emulsion comprising an ester of oleic acid or linoleic acid and a polyvalent alcohol having a carbon number of not less than 4 in a proportion of 0.5-30 wt %.

6. The method for suppressing pollen dispersal according to claim 1 , wherein the oleic acid derivative or linoleic acid derivative is comprised of an ester of oleic acid or linoleic acid and an alcohol having a sugar backbone.

7. The method for suppressing pollen dispersal according to claim 6 , wherein the oleic acid derivative or linoleic acid derivative is in an emulsion comprising an ester of oleic acid or linoleic acid and an alcohol having a sugar backbone in a proportion of 0.5-30 wt %.

Assignees

• Koshio Kaihei
• Ohike Hirokazu
• Shimada Masahiko
• Shiino Daijiro
• Tsuruoka Kuniaki
• Yamanaka Aiko
• Nof Corp

Inventors

• Koshio Kaihei
• Ohike Hirokazu
• Shimada Masahiko
• Shiino Daijiro
• Tsuruoka Kuniaki
• Yamanaka Aiko

Classifications

• A01G7/06

  Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants · CPC title

• C07C57/02

  with only carbon-to-carbon double bonds as unsaturation · CPC title

• A01N37/06 Primary

  Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof · CPC title