Verfahren zur Herstellung weitgehend spannungsfreier Formlinge, insbesondere Rohre, aus hochmolekularen, thermoplastischen Polycarbonaten

A stress-free, polycarbonate article, e.g. an extruded tube, is formed by maintaining the material during and immediately after moulding at a temperature between 70 DEG and 120 DEG C. and preferably 80 DEG to 100 DEG C. The article may subsequently be tempered at a temperature between 120 DEG and 14...

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Bibliographic Details
Main Authors STREIB,HUGO,DR, HECHELHAMMER,WILHELM,DR
Format Patent
LanguageGerman
Published 15.08.1966
Edition1
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A stress-free, polycarbonate article, e.g. an extruded tube, is formed by maintaining the material during and immediately after moulding at a temperature between 70 DEG and 120 DEG C. and preferably 80 DEG to 100 DEG C. The article may subsequently be tempered at a temperature between 120 DEG and 145 DEG C., e.g. 140 DEG C.
Bibliography:Application Number: CH19600013428