Method of treating waste magnetic tapes and method of manufacturing building material boards using the treated material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 26, 1997
Grant Date -
N/A
app pub date -
Aug 28, 1995
filing date -
Jan 7, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a method of treating waste magnetic tapes characterized in that waste magnetic tapes such as video tapes and cassette tapes are cut or crushed to a length of 1 to 50 mm, and heated at a temperature of 100.degree. to 200.degree. C. so that they are contracted in the form of curl, and a method of manufacturing building material boards characterized in that waste magnetic tapes such as video tapes and cassette tapes are cut or crushed to a proper size, heated, and then, supplied with a binder and molded under pressure.
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