VERFAHREN ZUR HERSTELLUNG EINES RISSFREIEN HOCH MOLEKULARORIENTIERTEN GEBLASENEN BEHAELTERS
Mfr. of molecularly highly oriented blow-moulded containers e.g. bottles, free from cracks, from nitrile-contg. polymer, comprises (a) shaping a seamless comparison closed at 1 end, in an injection-mould with an extrusion die that has a cavity surrounding a coaxial core pin; (b) injecting polymer me...
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| creator | MILA BELIVAKICI,ILIE RICHARD YOUNG,ROBERT |
| description | Mfr. of molecularly highly oriented blow-moulded containers e.g. bottles, free from cracks, from nitrile-contg. polymer, comprises (a) shaping a seamless comparison closed at 1 end, in an injection-mould with an extrusion die that has a cavity surrounding a coaxial core pin; (b) injecting polymer melt under pressure into the extrusion die cavity; removing the parison from the core pin; and (c) transferring the hot parison immediately to a temp. controlled conditioning pin in contact with the inner surface with the inner surface of the parison and a temp. controlled cavity in contact with the outer surface of the parison. Thus the parison is temp. conditioned within the orientation temp. range for the polymer. The so-conditioned parison is then blow-moulded, the polymer an orientation relaxation stress (sic), in a circumferential direction, of at least 35.2 kg/cm. Used e.g. in mfr. of plastics bottles for carbonated beverages. The prods. are free from stress cracks and unsightly stress marks. |
| format | Patent |
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Thus the parison is temp. conditioned within the orientation temp. range for the polymer. The so-conditioned parison is then blow-moulded, the polymer an orientation relaxation stress (sic), in a circumferential direction, of at least 35.2 kg/cm. Used e.g. in mfr. of plastics bottles for carbonated beverages. 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Thus the parison is temp. conditioned within the orientation temp. range for the polymer. The so-conditioned parison is then blow-moulded, the polymer an orientation relaxation stress (sic), in a circumferential direction, of at least 35.2 kg/cm. Used e.g. in mfr. of plastics bottles for carbonated beverages. The prods. are free from stress cracks and unsightly stress marks.</abstract><edition>2</edition><oa>free_for_read</oa></addata></record> |
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| language | ger |
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| source | esp@cenet |
| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | VERFAHREN ZUR HERSTELLUNG EINES RISSFREIEN HOCH MOLEKULARORIENTIERTEN GEBLASENEN BEHAELTERS |
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