Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Full Title

Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor > characterised by the shape of the extruded material at extrusion > Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

Subclass:

SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

Child Classifications

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• B29C 48/1 flexible, e.g. blown foils
• B29C 48/11 comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped