| 发明名称 |
BULK-DENSITY MEASURING DEVICE FOR PRE-EXPANDED PARTICLES AND METHOD FOR MANUFACTURING PRE-EXPANDED PARTICLES |
| 摘要 |
A bulk-density measuring device includes a first vessel in which contracted pre-expanded particles are swollen and recovered from contraction in a pressure-reduced state where a vessel internal pressure is lower than atmospheric pressure; a second vessel filled with the pre-expanded particles after being swollen in the first vessel in the pressure-reduced state where a vessel internal pressure is lower than the atmospheric pressure, and into which the pre-expanded particles of a constant volume are collected fractionally; a pressure-reducing unit that adjusts the vessel internal pressures of the first vessel and the second vessel to be lower than the atmospheric pressure; and a scale that measures a weight of the pre-expanded particles filled in the second vessel. |
| 申请公布号 |
US2016229096(A1) |
申请公布日期 |
2016.08.11 |
| 申请号 |
US201415029784 |
申请日期 |
2014.04.07 |
| 申请人 |
KANEKA CORPORATION |
发明人 |
Murakami Kyosuke;Ochikoshi Shinobu;Yoshida Toru |
| 分类号 |
B29C44/60;B29C44/34;C08J9/16;G01N9/02 |
主分类号 |
B29C44/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A bulk-density measuring device comprising:
a first vessel in which contracted pre-expanded particles are swollen and recovered from contraction in a pressure-reduced state where a vessel internal pressure is lower than atmospheric pressure; a second vessel filled with the pre-expanded particles after being swollen in the first vessel in the pressure-reduced state where a vessel internal pressure is lower than the atmospheric pressure, and into which the pre-expanded particles of a constant volume are collected fractionally; a pressure-reducing unit that adjusts the vessel internal pressures of the first vessel and the second vessel to be lower than the atmospheric pressure; and a scale that measures a weight of the pre-expanded particles filled in the second vessel. |
| 地址 |
Osaka JP |
