Filler for paper-making and neutral paper-making process by the use thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 16, 1988
Grant Date -
N/A
app pub date -
Feb 19, 1986
filing date -
Feb 19, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a filler for paper-making containing 0.1 weight part or more of a particle composition meeting the requirements (A), (B) and (C) below per 100 weight parts of heavy calcium carbonate and a neutral paper-making process by the use thereof: (A): Zeta potential (Suspension concentration 1,000 ppm in pure water, measuring temperature 20.degree. C.) is negative; (B): Particle size 'd' of the composition resulting from dispersion for 10 minutes of a 10 weight % aqueous suspension of the above-mentioned particle composition by ultrasonic dispersing means measured by the use of the standard sieve of JIS Z8801 is: 22 .mu.m
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully