Process for the preparation of a spermicidal agent
AssigneeNational Research Development Corporation
InventorsGovindaswamy Ilavazhagan, Chakra Devakumar
Life of this patent
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Abstract
A process for preparing a spermicidal agent from neem oil includes (a) mixing neem oil with an aliphatic hydrocarbon solvent so that a precipitate forms, and filtering the mixture to separate the filtrate solution from the precipitate; (b) contacting the filtrate solution of step (a) with a polar extractant solvent whereby a spermicidal agent is extracted from the filtrate solution into the polar extractant solvent; and (c) removing solvent from the polar extractant solvent to produce a concentrated solution containing extract a spermicidal agent.
Claims15
A process for preparing a spermicidal agent from neem oil comprising:
- a) mixing neem oil with an aliphatic hydrocarbon solvent so that a precipitate forms, and filtering the mixture to separate the filtrate solution from the precipitate;
- b) contacting the filtrate solution of step (a) with a polar extractant solvent whereby a spermicidal agent is extracted from the filtrate solution into said polar extractant solvent;
- and
- c) removing solvent from said polar extractant solvent to produce a concentrated solution containing an extract enriched with spermicidal agent.
Dependencies are inferred from the claim text.