发明名称 |
MODIFIZIERTER THERMOPLAST ALS DECKEL, VERFAHREN ZUR HERSTELLUNG DAVON UND BEHAELTERDECKEL. |
摘要 |
The prerequisites for the injection moulding from thermoplastic material of container lids with a tear-up opening arrangement which is to function well on opening as well as on reclosing are improved through the use of a modified thermoplastic containing inert filler in a quantity of 10-15% of the weight of the mixture. Such a modified thermoplastic is manufactured by the heating of a thermoplastic,known in itself, e.g. polyethylene, to melting temperature with simultaneous admixture of the filler,and the mixture is mechanically processed for a good distribution of the filler in the melted plastic mass which thereafter is cooled to form the modified thermoplastics. |
申请公布号 |
DE3877814(T2) |
申请公布日期 |
1993.05.27 |
申请号 |
DE19883877814T |
申请日期 |
1988.04.28 |
申请人 |
TETRA ALFA HOLDINGS S.A., PULLY, CH |
发明人 |
ROSEN, KLAS AKE, S-253 72 HELSINGBORG, SE |
分类号 |
B29C45/00;B29K23/00;B29K105/06;B29K105/16;B29L31/56;B65D47/08;B65D47/36;C08K3/00;(IPC1-7):C08L23/00 |
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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