发明名称 |
Pulverulent copolyamides for the coating of glass bottles |
摘要 |
An improved method of coating glass bottles by flame spraying with pulverulent copolyamides which uses a copolyamide containing at least 30% by weight of laurolactam. The copolyamides, obtained by the hydrolytic polycondensation process are first subjected to a molecule-orienting treatment, then ground into powders at low temperatures, and these powders are sifted to a particle size distribution so that the proportion of powder having a particle size of between 30 and 100 microns is greater than 70 to 100%, and the proportion of powder having a particle size of less than 30 microns is 0 to 30%.
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申请公布号 |
US4172161(A) |
申请公布日期 |
1979.10.23 |
申请号 |
US19770815233 |
申请日期 |
1977.07.13 |
申请人 |
CHEMISCHE WERKE HULS AG |
发明人 |
FELDMANN, RAINER;MULLER, KARL-ADOLF;PANOCH, HANS J |
分类号 |
C03C17/32;(IPC1-7):B05D3/02 |
主分类号 |
C03C17/32 |
代理机构 |
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地址 |
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