Title of Invention

A PROCESS OF MAKING PAPER

Abstract Paper is made by a dual soluble polymer process in which a cellulosic suspension which usually contains alum or cationic coagulant is first flocculated with a high IV cationic synthetic polymer or cationic starch and, after shearing, the suspension is reflocculated by the addition of a branched anionic water soluble polymer having IV above 3dl/g and tan delta at 0.005Hz of at least 0.5. The process gives an improved combination of formation, retention and drainage.
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Documents:

3033-mas-1997-abstract.pdf

3033-mas-1997-claims duplicate.pdf

3033-mas-1997-claims original.pdf

3033-mas-1997-correspondence others.pdf

3033-mas-1997-correspondence po.pdf

3033-mas-1997-description complete duplicate.pdf

3033-mas-1997-description complete original.pdf

3033-mas-1997-drawings.pdf

3033-mas-1997-form 1.pdf

3033-mas-1997-form 26.pdf

3033-mas-1997-form 3.pdf

3033-mas-1997-form 4.pdf


Patent Number 208098
Indian Patent Application Number 3033/MAS/1997
PG Journal Number 27/2007
Publication Date 06-Jul-2007
Grant Date 09-Jul-2007
Date of Filing 31-Dec-1997
Name of Patentee CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED
Applicant Address P O BOX 38,LOW MOOR, BRADFORD,WEST YORSHIRE BD12 OJZ.
Inventors:
# Inventor's Name Inventor's Address
1 MICHAEL HEARD P O BOX 38,LOW MOOR, BRADFORD,WEST YORSHIRE BD12 OJZ.
PCT International Classification Number C08F2/32
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/034247 1996-12-31 U.S.A.