Method of improvement strength of papers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Apr 6, 1999
filing date -
Apr 6, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Novel polymers are provided having phosphonated and sulphonated substituent groups such that the polymer is multifunctional in its use. Optional amide substituent are used to reduce electrostatic charge density or for hydrogen bonding. An advantage of the polymer is the flexibility of using it for multiple purposes. A particular application is for bonding paper fillers and paper fiber together.
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