Title of Invention

"A PROCESS FOR THE PREPARATION OF A FLUID LOSS CONTROL AGENT"

Abstract This invention relates to a process for the preparation of a fluid loss control agent and viscosifier. According to the process cassia tora gum (CTG) is added to aqueous methanol with alkali and the same is stirred. Chloro acetic acid is added to the mixture intermittently during the stirring. The mix is refluxed on a water bath and the same is cooled. The product is filtered and subjected to the step of washing with aqueous methanol followed by methanol till the pH of the filtrate is between 9-11 and them the same is dried and pulverized obtain CMCTG.
Full Text

Documents:

680-del-2000-abstract.pdf

680-del-2000-claims.pdf

680-del-2000-complete specification (granted).pdf

680-del-2000-correspondence-others.pdf

680-del-2000-correspondence-po.pdf

680-del-2000-description (complete).pdf

680-del-2000-description (provisional).pdf

680-del-2000-form-1.pdf

680-del-2000-form-19.pdf

680-del-2000-form-2.pdf

680-del-2000-form-3.pdf

680-del-2000-form-5.pdf

680-del-2000-gpa.pdf

680-del-2000-petition-others.pdf


Patent Number 226638
Indian Patent Application Number 0680/DEL/2000
PG Journal Number 04/2009
Publication Date 23-Jan-2009
Grant Date 23-Dec-2008
Date of Filing 25-Jul-2000
Name of Patentee THE DIRECTOR, FOREST RESEARCH INSTITUTE
Applicant Address P.O. NEW FOREST, DEHRADUN-248 006, INDIA.
Inventors:
# Inventor's Name Inventor's Address
1 P.L. SONI FOREST RESEARCH INSTITUTE, P.O. NEW FOREST, DEHRADUN-248 006
2 PRADEEP SHARMA FOREST RESEARCH INSTITUTE, P.O. NEW FOREST, DEHRADUN-248 006
PCT International Classification Number C09K 7/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA