Method for manufacturing a substantially rigid water-dispersible article
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 5, 1992
Grant Date -
N/A
app pub date -
Apr 30, 1990
filing date -
Apr 30, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for manufacturing a substantially rigid water-dispersible article includes the step of mixing together an ionic water-soluble film-forming polymer, a non-ionic water-soluble film-forming polymer, a chemically purified finely divided highly bleached cellulose, and glass fiber wool. Water is added to the dry mixture to form a dough which is subsequently molded into the desired form and dried while being maintained in the molded form. A filler or extender such as talc or paper pulp may be added prior to the molding step. In addition, a wetting agent may be added to accelerate rewetting and dispersal of the article upon disposal thereof, while a hydrophobic composition may be added to the dough to form a water repellant surface layer or film during drying of the molded article.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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