Combined ultrasonic and resistance pressure welding
DE4405552A1
Flow control useful esp. for working molten thermoplastics plastics
DE4337539A1
Sepg. and sorting thermoplastic parts
DE4304726A1
Process for separating different types and types of plastic from the batch by floating-sink separation in a gravitational or centrifugal field
DE4203302A1
Comminuting of thermoplastic fibre materials for recycling - by using thermoplastic properties e.g. heat fusing and cutting or cutting with hot blades, to form more compact raw material for melting down
DE4137298A1
METHOD AND DEVICE FOR CONTINUOUS FILTERING AND SEPARATING THERMOPLASTIC PLASTICS
DE4121172A1
Valve arrangement for bohm flute - has C sharp valve directly adjacent to B flat valve with ring valve being double of B valve
DE4120113A1
Continuous molten plastic filter - directs current obliquely through filter surface
DE4120114A1
Cleaning filters for polymer melt - by extracting e.g. set vol. from already filtered main melt stream and applying it at suitable pressure
DE4120110A1
Telecommunications appts. for private use - has decentralised tariff units stored w.r.t. use by individual subscribers
DE4120111A1
Cleaning of soiled plastics during recycling - using decanter, esp. sieve decanter for removal of tacky pollutants and is aided by brushes in conveyor screw
DE4101026A1
Recycling of contaminated synthetic material - has cutter or grinder coupled to extruder screw to grind foreign materials while synthetic material in in liq. state
DE3734876A1
Process for the cold-isostatic repressing of moulded articles
