Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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Filing date
Publication date
Application filed by Sumitomo Electric Industries LtdfiledCriticalSumitomo Electric Industries Ltd
Priority to JP8335780ApriorityCriticalpatent/JPS578111A/ja
Publication of JPS578111ApublicationCriticalpatent/JPS578111A/ja
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—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
B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
B29C61/06—Making preforms having internal stresses, e.g. plastic memory
B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
JP8335780A1980-06-181980-06-18Manufacture of heat shrinkable tubing
PendingJPS578111A
(en)