EXPANDED STYRENE RESIN BEADS AND MOLDED ARTICLE FORMED FROM EXPANDED STYRENE RESIN BEADS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 19, 2010
app pub date -
Oct 9, 2008
filing date -
Oct 31, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Expanded styrene resin beads are made of a styrene resin as the base resin and have an average bead diameter of 0.5-10 mm and an apparent density of 0.013-0.15 g/cm.sup.3. The expanded beads are characterized in that the expanded beads each has many dimples having a maximum diameter of 5-100 .mu.m in the surface and that when the expanded beads are secondarily expanded under the conditions of a heating steam temperature of 107.degree. C. and a heating time of 120 seconds, then the secondary expansion ratio determined by dividing the apparent density of the expanded beads before the secondary expansion (g/cm.sup.3) by the apparent density of the expanded beads after the secondary expansion (g/cm.sup.3) satisfies the relationship (1). Secondary expansion ratio.ltoreq.-7.00.times.{apparent density of expanded beads before secondary expansion (g/cm.sup.3)}+1.61 (1).
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