Title of Invention	"AN IMPROVED PROCESS FOR PREPARATION OF ELECTRICALLY CONDUCTING FABRIC"
Abstract	This invention relates to an improved process for preparation of electrically conducting fabric comprising of dipping the said fabric in sodium hydroxide solution, reacting the said fabric of step (a) with hydrochloric acid and then washing again reacting the said fabric with chloride solution, treating the said fabric of step (b) with 0.1 to 0.5% of silver nitrate solution, the reacted said fabric of step (c) is allowed to react with silvering solution for 10 to 35 minutes, wherein silvering solution comprises of 0.1 to 0.7 silver nitrate, 10% sodium potassium tartrate and 5% ammonia.

Title of Invention

"AN IMPROVED PROCESS FOR PREPARATION OF ELECTRICALLY CONDUCTING FABRIC"

Abstract

This invention relates to an improved process for preparation of electrically conducting fabric comprising of dipping the said fabric in sodium hydroxide solution, reacting the said fabric of step (a) with hydrochloric acid and then washing again reacting the said fabric with chloride solution, treating the said fabric of step (b) with 0.1 to 0.5% of silver nitrate solution, the reacted said fabric of step (c) is allowed to react with silvering solution for 10 to 35 minutes, wherein silvering solution comprises of 0.1 to 0.7 silver nitrate, 10% sodium potassium tartrate and 5% ammonia.

Full Text	DESCRIPTION (COMPLETE) OCR NOT PREPARE DUE TO PRINT PROBLEM WE CLAIMS :- 1. An improved process for preparation of electrically conducting fabric comprising of: a) dipping the said fabric in sodium hydroxide solution, b) reacting the said fabric of step (a) with hydrochloric acid and then washing again reacting the said fabric with chloride solution, c) treating the said fabric of step (b) with 0.1 to 0.5% of silver nitrate solution, d) the reacted said fabric of step (c) is allowed to react with silvering solution for 10 to 35 minutes, wherein silvering solution comprises of 0.1 to 0.7 silver nitrate, 10% sodium potassium tartrate and 5% ammonia, 2. A process as claimed in claim 1, wherein the said chloride solution comprises of stannous chloride, zinc chloride and potassium chloride. 3. A process as claimed in claim 1 wherein said silver nitrate is preferably 0.1 to 0.7 percent, said sodium potassium tartrate is 10 percent and said ammonia is preferably 5 percent in the said silvering solution and the said reaction is allowed preferably for 15 to 30 minutes. 4. A process as claimed in claim 1 wherein said silvering solution is prepared first by the reaction of said sodium potassium tartarate with said silver nitrate and then reacting said ammonia solution with the reacting mixture of said silver nitrate and said sodium potassium tartrate. 5. A process for the preparation of said fabric substantially as herein described.

Full Text

DESCRIPTION (COMPLETE) OCR NOT PREPARE
DUE TO PRINT PROBLEM

WE CLAIMS :-
1. An improved process for preparation of electrically conducting fabric comprising of:
a) dipping the said fabric in sodium hydroxide solution,
b) reacting the said fabric of step (a) with hydrochloric acid and then washing again reacting the said fabric with chloride solution,
c) treating the said fabric of step (b) with 0.1 to 0.5% of silver
nitrate solution,
d) the reacted said fabric of step (c) is allowed to react with silvering
solution for 10 to 35 minutes, wherein silvering solution
comprises of 0.1 to 0.7 silver nitrate, 10% sodium potassium
tartrate and 5% ammonia,
2. A process as claimed in claim 1, wherein the said chloride solution comprises of stannous chloride, zinc chloride and potassium chloride.
3. A process as claimed in claim 1 wherein said silver nitrate is preferably 0.1 to 0.7 percent, said sodium potassium tartrate is 10 percent and said ammonia is preferably 5 percent in the said silvering solution and the said reaction is allowed preferably for 15 to 30 minutes.
4. A process as claimed in claim 1 wherein said silvering solution is prepared first by the reaction of said sodium potassium tartarate with said silver nitrate and then reacting said ammonia solution with the reacting mixture of said silver nitrate and said sodium potassium tartrate.
5. A process for the preparation of said fabric substantially as herein described.

Documents:

2190-del-1996-abstract.pdf

2190-del-1996-claims.pdf

2190-del-1996-complete specification (granted).pdf

2190-del-1996-correspondence-others.pdf

2190-del-1996-correspondence-po.pdf

2190-del-1996-description (complete).pdf

2190-del-1996-form-1.pdf

2190-del-1996-form-19.pdf

2190-del-1996-form-2.pdf

2190-del-1996-form-26.pdf

2190-del-1996-form-3.pdf

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Patent Number

226236

Indian Patent Application Number

2190/DEL/1996

PG Journal Number

04/2009

Publication Date

23-Jan-2009

Grant Date

12-Dec-2008

Date of Filing

07-Oct-1996

Name of Patentee

THE CHIEF CONTROLLER RESEARCH & DEVELOPMENT

Applicant Address

MINISTRY OF DEFENCE, GOVERNMENT OF INDIA, B-341, SENA BHAWAN, DHQ P.O., NEW DELHI-110 011, INDIA.

Inventors:

#	Inventor's Name	Inventor's Address
1	RAVINDRA KUMAR AGARWAL	INDIAN NATIONALS & SUBJECTS THE REPUBLIC OF INDIA.
2	DAVENDRA KUMAR LUHADIA	INDIAN NATIONALS & SUBJECTS THE REPUBLIC OF INDIA.
3	ASHOK KUMAR WADHAWAN	INDIAN NATIONALS & SUBJECTS THE REPUBLIC OF INDIA.
4	CHANDER MOHAN MEENA	INDIAN NATIONALS & SUBJECTS THE REPUBLIC OF INDIA.
5	PEMMARAJU RAMASESHU	INDIAN NATIONALS & SUBJECTS THE REPUBLIC OF INDIA.

PCT International Classification Number

D06K 11/12

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA