Invariants of torus knots derived from quantum groups
Invariants of torus knots derived from quantum groups
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从量子群导出的环面结的不变量
DOI：
10.1142/s0218216593000064
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
M. Rosso
中科院分区：
文献类型：
--
作者：
V. Jones;M. Rosso
本发明涉及用于生产涂覆膜的设备和方法，其中对冷却的聚合物管状挤出物进行涂覆、再加热和充气以产生定向的涂覆管状膜。该设备包括涂覆头，该涂覆头包括可旋转组件，该组件包括提供孔口[14]的支撑构件[13]，管状挤出物可通过该孔口[14]供给、围绕孔口间隔开的多个散布构件[19]、用于每个散布构件的安装装置[15]，该安装装置[15]与支撑构件可操作地关联并可相对于支撑构件移动，以及用于将每个散布构件偏置成与管状挤出物接合的装置[21]。液体涂覆介质从喷涂组件适当地沉积在挤出物上，并且涂覆组件围绕挤出物旋转，从而铺展和抛光所沉积的介质以产生均匀的涂覆膜。该系统特别适合于生产其表面上具有抗静电涂层的聚合物包装膜。
The invention relates to apparatus and a method for producing a coated film in which a cooled polymeric tubular extrudate is coated, reheated and inflated to yield an oriented, coated tubular film. The apparatus includes a coating head comprising a rotatable assembly including a support member [13] providing an orifice [14] through which the tubular extrudate may be fed, a plurality of spreading members [19] spaced-apart around the orifice, mounting means [15] for each of the spreading members operatively associated with the support member and displaceable relative thereto, and means [21] for biasing each of the spreading members into engagement with the tubular extrudate. Liquid coating medium is suitably deposited on the extrudate from a spray assembly, and the coating asembly is rotated around the extrudate thereby spreading and polishing the deposited medium to yield a uniformly coated film. The system is particularly suitable for the production of polymeric packaging films having an antistatic coating on the surface thereof.