Elastic strip material and process and apparatus for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
May 24, 2007
app pub date -
Dec 13, 2004
filing date -
Dec 12, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
[OBJECTS] To provide an elastic strip material that has a cross-sectional shape suited to intended uses such as seals or cushions, as well as a method of and an apparatus for mass-producing the strip material efficiently and inexpensively. [MEANS FOR ACHIEVING THE OBJECTS] A heat setting composition is used whose main ingredients are a polyurethane prepolymer and a latent solidifier obtained by deactivating a solid polyamine. A compressed gas is dispersed throughout the composition to give a fluid mixture `a`, that is then foamed and heated to or above a critical temperature to solidify as the strip material. The fluid mixture `a` is extruded from an extruder (1), guided into a liquid or gaseous heating zone (2), caused to solidify during travel within the zone, and shaped at the same time into a desired configuration before discharged from the zone (2).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | A | JP2005169919 | Dec 12, 2003 |
| WO | A1 | WO2005056267 | Dec 13, 2004 |
| EP | A1 | EP1693174 | Dec 13, 2004 |
| CN | A | CN1886243 | Dec 13, 2004 |
| KR | A | KR20060120066 | May 02, 2006 |
International Classification(s)
- 2004 Application Filing Year
- B29C Class
- 1620 Applications Filed
- 752 Patents Issued To-Date
- 46.42 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B29C Class
- 0 % this patent is cited more than
- 18 Age