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Novel compositions for bitterants

A composition and polymer technology, applied in applications, biocides, animal repellents, etc.

Pending Publication Date: 2021-03-16
UNITED PHOSPHORUS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at larger concentrations, handling is an issue

Method used

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  • Novel compositions for bitterants
  • Novel compositions for bitterants
  • Novel compositions for bitterants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Example 1: Synthesis of Homopolymers of Poly(4-vinylpyridine) (PVP)

[0077]To boiling methanol (50 mL) drawn from a 250 mL three-necked flask equipped with a condenser and dropping funnel, a solution of 4-vinylpyridine (40 g) and AIBN (1 g) was added dropwise over 1 hour with stirring. The flask was maintained at 65°C to 70°C for an additional 3 hours. The solution was concentrated to half its volume under reduced pressure on a rotary evaporator at 65 °C. The solution was cooled to room temperature and gradually added to diethyl ether (100 mL) with stirring to precipitate a polymer. The polymer was washed 3-4 times with diethyl ether to remove traces of unreacted 4-VP. The polymer appeared as a pink powdery material.

Embodiment 2

[0079] Synthesis of poly(4-vinylpyridine) (PVP) homopolymer and 300 wt / wt% (relative In situ entrapment / blending of denatonium benzoate by weight of 4-VP .

[0080] Into a 250 mL glass kettle equipped with a condenser, dropping funnel and mechanical stirrer was added 60 g of denatonium benzoate and 60 mL of methanol. The reaction mass was heated to 65°C-70°C with stirring and held for 30 minutes. To the above clear solution was slowly added a mixture of 4-vinylpyridine (20 g) and AIBN (0.5 g) while stirring for 1 hour. After addition of the mixture, the reaction mass was maintained at the same temperature for an additional 3 hours. The hot reaction mass was then transferred to a petri dish and evaporated at room temperature (25°C-30°C) followed by vacuum evaporation at 50°C to obtain the DB-PVP blend mass. 73 g of polymer are obtained; product colour: dark brown. The polymer has a bitter taste.

Embodiment 3

[0082] Synthesis of poly(4-vinylpyridine) (PVP) homopolymer and 100 wt / wt% (relative In situ blending of DB in 4-VP by weight .

[0083] Into a 250 mL glass kettle equipped with a condenser, dropping funnel and mechanical stirrer was added 20 g of denatonium benzoate and 60 mL of methanol. The reaction mass was heated to 70°C with stirring and held for 30 minutes. To the above clear solution was slowly added a mixture of 4-vinylpyridine (20 g) and AIBN (0.5 g) while stirring for 1 hour. After the mixture was added, the reaction mass was maintained at the same temperature for an additional 3.0 hours. The hot reaction mass was then transferred to a petri dish and evaporated at room temperature (25°C-30°C) followed by vacuum evaporation at 50°C to obtain the DB-PVP blend mass. The powder is then stored in a container at room temperature. 38 g of polymer matrix are obtained.

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Abstract

The present invention relates to compositions comprising aversive agent. More specifically, the present invention relates to polymer composite compositions comprising such agents and application thereof.

Description

technical field [0001] The present invention relates to compositions comprising aversive agents and methods for their preparation. More specifically, the present invention relates to polymer composite compositions comprising such agents and methods of use thereof. Background technique [0002] Denatonium benzoate is a versatile compound whose uses range from denaturation in alcohols to aversion agents added to various products ranging from pharmaceuticals, cables, agrochemicals, fragrances, and various other industries. Denatonium benzoate is known to be the most bitter compound and is used as an aversive agent due to its bitter properties. Denatonium benzoate is known to be added to various materials. [0003] US6468554 teaches adding denatonium benzoate to plastic polymers such as polyvinyl chloride. EP0318262 discloses a liquid formulation of denatonium benzoate and a surfactant. Liquid formulations are said to be more soluble in hydrocarbons. WO9301712 teaches the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/19C08L39/08C08J3/215
CPCC08K5/19C08L39/08C08J3/215C08K5/20C08K5/46A01N37/22C08F126/06C08F226/06A01N25/10C08F212/36C08L29/04C08F271/02C08J2339/08C08J2351/00C08K5/09C08K5/47
Inventor 帕拉苏·维拉·乌帕拉尼丁·拉姆达斯·帕蒂尔安基特·辛格克里希南·兰帕喀什·斯里瓦斯塔瓦加德夫·拉耶尼肯特·施洛夫维克拉姆·拉耶尼肯特·施洛夫
Owner UNITED PHOSPHORUS LTD
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