Method for producing fused unplasticised polyvinyl chloride articles
AssigneeSteer Engineering Private Limited
InventorBabu Padmanabhan
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Abstract
A method for producing a fused unplasticised polyvinyl chloride (UPVC) article (126) is provided. The method includes feeding an UPVC blend (103) into a co-rotating twin-screw extruder (100). The method further includes melting the UPVC blend (103) and conveying fused UPVC to an outlet (120) of the co-rotating twin-screw extruder (100). The method also includes collecting the fused UPVC from the outlet (120) at a rate of at least 100 kilograms/hour per litre of free volume (124) of the co-rotating twin-screw extruder (100).
Claims22
A method for producing a fused unplasticised polyvinyl chloride (UPVC) article (126), the method comprising:
- a) feeding an UPVC blend (103) into a co-rotating twin-screw extruder (100);
- b) melting the UPVC blend (103) and conveying fused UPVC to an outlet (120) of the co-rotating twin-screw extruder (100);
- and
- c) collecting the fused UPVC from the outlet (120) at a rate of at least 100 kilograms/hour per litre of free volume (124) of the co-rotating twin-screw extruder (100).
An article (126) formed by a process comprising:
- a) feeding an unplasticised polyvinyl chloride (UPVC) blend (103) into a co-rotating twin-screw extruder (100);
- b) melting the UPVC blend (103) and conveying fused UPVC to an outlet (120) of the co-rotating twin-screw extruder (100);
- and
- c) collecting the fused UPVC from the outlet (120) at a rate of at least 100 kilograms/hour per litre of free volume (124) of the co-rotating twin-screw extruder (100).
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Dependencies are inferred from the claim text.