Controlled release compositions

A composition and compound technology, applied in animal repellents, plant growth regulators, preservation of human or animal bodies, etc., can solve problems such as slowness, loose contact, incomplete release of volatile compounds, etc.

Inactive Publication Date: 2012-10-17
ROHM & HAAS CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, providing molecular encapsulation complexes in powder form does not solve all the problems associated with the use of volatile compounds
For example, when a release compound is used to release a volatile c...

Method used

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  • Controlled release compositions
  • Controlled release compositions
  • Controlled release compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1A

[0138]

[0139] The molten mixture of materials was applied in a layer 0.5 mm thick and allowed to cool. A cooled piece of substrate was removed from the substrate and suspended in the neck of a bottle with a septum cap at 22°C. Place 3ml of water at the bottom of the bottle. The result is ideally a gradual release.

[0140]

Embodiment 1B

[0142] The experiment of Example 1A was repeated except that the temperature of the bottle during the experiment was 4°C. The result is ideally a gradual release.

[0143]

Embodiment 2

[0145]

[0146] The molten mixture of the materials was melted, mixed, cooled and 200 mg pressed into 12.7 mm diameter discs. The disc was suspended in the neck of a bottle with a septum cap at 5°C. Place 3ml of water at the bottom of the bottle. The result is ideally a gradual release.

[0147]

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PUM

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Abstract

A composition comprising (a) a meltable solid matrix comprising (i) one or more solid hydrophobic substance, and (ii) one or more solid hydrophilic substance, and (b) distributed in said matrix, one or more encapsulation complex of a volatile cyclopropene compound encapsulated in a molecular encapsulation agent. Also provided is a method of treating plants or plant parts comprising placing said plants or plant parts and the composition of claim 1 into a container and allowing said plants or plant parts and said composition of claim 1 to remain together in said container for 1 day or longer.

Description

Background technique [0001] There are various problems with dealing with volatile compounds. One approach to making volatile compounds easier to handle is to form a molecular encapsulating complex in which a molecular encapsulating agent encapsulates the molecules of the volatile compound. In some cases, the molecular encapsulation complex is in powder form and can optionally be blended with other solid particles of other materials to form a blended powder. Such powders are generally easier to store, transport and / or use than pure volatile compounds. [0002] When it is desired to use the volatile compounds contained in such powders, a conventional method involves contacting the powders with a release compound which, when in contact with the encapsulating compound, promotes or allows the release of the volatile compounds from released from the molecular encapsulation complex. Water is a release compound for some useful molecular encapsulation complexes. [0003] However, p...

Claims

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Application Information

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IPC IPC(8): A01N25/12A01N25/32
CPCA01N27/00A01N25/08A01N25/18A01N2300/00C08L101/00C08K9/10A61K9/20
Inventor R·M·雅各布森
Owner ROHM & HAAS CO
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