发明名称 |
THREE LAYER FILM HAVING A CORE LAYER OF LOW PRESSURE,LOW DENSITY POLYETHYLENE |
摘要 |
There is disclosed a flexible co-extruded three layer film comprising outer layers of high pressure, low density polyethylene and a core layer of low pressure, low density polyethylene. The film is produced by a blown film tubular extrusion process at conventional rates and temperature and yet is free of melt fracture even though the low pressure, low density polyethylene would otherwise exhibit melt fracture. |
申请公布号 |
ZA8203444(B) |
申请公布日期 |
1983.12.28 |
申请号 |
ZA19820003444 |
申请日期 |
1982.05.18 |
申请人 |
UNION CARBIDE CORP |
发明人 |
HORNER JEROME THOMAS;JOHN ANTHONY;FRASER WILLIAM ALLEN |
分类号 |
B29C47/06;B29C63/00;B32B27/32;B32B37/00;B65D65/40 |
主分类号 |
B29C47/06 |
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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