发明名称 |
FREMGANGSMAATE FOR FREMSTILLING AV BIAKSIALT ORIENTERTE BOELGEPLATER |
摘要 |
Corrugated plates are made of polyvinyl chloride resin, and are bidirectionally oriented in such a manner that an element which is sampled therefrom presents a retraction of at least 30 percent along the two main axes of the plates after a residence of 8 hours in an oven kept at 140 DEG C. The plates have a resiliency in tension at 20 DEG C in excess of 650 cm kgf/cm2 and a resiliency in prestressed condition in excess of 300 kfg/cm2. They are resistant at 4 DEG C to impacts caused by boxwood balls of 200 mm diameter which are projected perpendicularly against the surface of said plates at a speed such that their kinetic energy is 0.105 m kgf. |
申请公布号 |
NO141548(B) |
申请公布日期 |
1979.12.27 |
申请号 |
NO19700004418 |
申请日期 |
1970.11.18 |
申请人 |
SOLVAY & CIE, |
发明人 |
BEQUET, JEAN FRANCOIS,;ASBROECK, ROGER VAN,;DUBOIS, PAUL, |
分类号 |
B29C45/00;B29C53/00;B29C53/22;B29C53/24;B29C53/32;B29C53/80;B29C53/84;E04C2/32;E04D3/32;(IPC1-7):29C17/02 |
主分类号 |
B29C45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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