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    • 7. 发明申请
    • ESSENTIALLY GAS-IMPERMEABLE THERMOPLASTIC SEALANT
    • 基本无气味的热塑性密封剂
    • WO2007145851A3
    • 2008-02-14
    • PCT/US2007012938
    • 2007-06-01
    • GLS CORPVARMA RAJESH KUMAR
    • VARMA RAJESH KUMAR
    • C08L53/00B65D39/00B65D41/04B65D53/02B65D53/06C08L23/04C08L23/20C08L23/22C08L53/02C09J123/04C09J153/02
    • C09J153/02B65D39/0011B65D39/0017B65D41/005B65D41/0442B65D53/02B65D53/06C08K5/0016C08L23/04C08L23/20C08L23/22C08L53/00C08L53/02C08L53/025C08L2205/02C08L2205/035C08L2666/04C09J123/04C09J153/025C08L2666/24C08L2666/02
    • A thermoplastic essentially oxygen-impermeable plasticized sealant is formed by melt-blending a hydrogenated styrene-conjugated diene-styrene (SMS) block copolymer rubber with a polystyrene-polyisobutylene-polystyrene (SIBS) block copolymer rubber and a polyolefin plastic with a liquid polyisobutylene (PIB) oil plasticizer provided the PIB oil is present (i) in the range from 5% to less than 50% by weight of the sealant and (ii) in relation to total rubber, in the range from 0.3 to 0.8. The required minor amount of PlB oil, relative to total rubber, in combination with SIBS present in a minor amount relative to the amount of plasticized sealant, provides the sealant with unexpectedly better oxygen barrier properties and load bearing at 82°C (180°F ) than a comparable blend of SIBS with mineral oil; the sealant is also essentially free of tack, adhesive properties and oil-bleed, with essentially no detackifier present. The PIB-oil plasticized SIBS sealant has a haze of less than 15%; a composite made by melt-bonding a core layer between PoIyC 2 -C 3 OIe fin sheets, maintains a haze less than 14%. The plasticised sealant is particularly useful for sealing elements for containers in which foods, beverages and medical products must be preserved for a long period.
    • 通过将氢化苯乙烯 - 共轭二烯 - 苯乙烯(SMS)嵌段共聚物橡胶与聚苯乙烯 - 聚异丁烯 - 聚苯乙烯(SIBS)嵌段共聚物橡胶和聚烯烃塑料与液体聚异丁烯熔融共混形成热塑性基本上不透氧的增塑密封剂 PIB)油增塑剂,只要PIB油存在(i)占密封胶重量的5%至小于50%,和(ii)相对于总橡胶,范围为0.3至0.8。 相对于总橡胶,所需的少量PlB油相对于塑化密封剂量少量的SIBS,与密封胶相比,在82℃(180°F)下提供了意想不到的更好的氧气阻隔性能和承载能力 )比SIBS与矿物油的可比混合物; 密封剂也基本上没有粘性,粘合性和油渗,基本上没有防粘剂存在。 PIB油增塑SIBS密封胶雾度小于15%; 通过熔融粘合PoIyC 2 -C 3 O 3翅片之间的芯层制成的复合材料保持雾度小于14%。 塑化的密封剂特别适用于必须长时间保存食品,饮料和医疗产品的容器的密封元件。
    • 8. 发明申请
    • CORK TOOL AND CORRESPONDING PRODUCTION METHOD
    • 软木工具和手段及其制造
    • WO2004096517A2
    • 2004-11-11
    • PCT/EP2004050588
    • 2004-04-22
    • MHT MOLD & HOTRUNNER TECH AGPLASS WERNERSCHWEININGER STEFAN
    • PLASS WERNERSCHWEININGER STEFAN
    • B29C44/42B29C45/42B29C45/56B65D39/00B29C44/34B29C44/38
    • B65D39/0017B29C44/428B29C45/42B29C45/56B29L2031/565
    • The invention relates to a method for producing injection-moulded parts from synthetic foam (18). Said invention also relates to a device for producing injection moulded parts from said synthetic foam (18) comprising at least one foaming cavity (14) for receiving synthetic foam (18) and at least one feeding system (2, 3, 4) for feeding with synthetic foam (18). The foaming cavity (14) is embodied in such a way that it receives synthetic foam (18) as far as a complete foaming of the injection moulded part is obtained. The aim of the invention is to develop a method and a form tool for producing a great quantity of corks having an as smooth look as possible during a short cycle time. For this purpose, the inventive method consists in introducing synthetic foam (18) into a moulding cavity (6, 7) with the aid of the feeding system (2, 3, 4), in separating said feeding system (2, 3, 4) from the moulding cavity (6, 7) and in foaming said synthetic foam (18) in the foaming cavity (5, 14). For this purpose, with regard to the device, at least two foaming cavities (14) are associated to each feeding system (2, 3, 4).
    • 本发明涉及一种用于生产由塑料泡沫体(18)的注塑件的方法。 此外,本发明涉及一种用于生产具有至少一个Aufschäumkavität(14)由塑料泡沫体(18)的注塑件的装置,用于接收所述塑料泡沫体(18)和至少一个进料装置(2,3,4),用于供给所述塑料泡沫体(18) 其中Aufschäumkavität(14)被设置用于接收塑料泡沫(18),直到所述模制件的完整的发泡。 为了提供一种方法和可用的成形工具,可以用软木塞在短的周期时间来制备,并且因此在具有平坦外形尽可能大的数字,所以建议以该方法包括以下步骤的方法:将膨胀型塑料(18 )在模腔(6,7)由(2进给装置的装置,3,4),分离进料装置(2,3,4)(在Aufschäumkavität模腔6,7)和塑料泡沫(18)的发泡( 进料装置(2,3的分离后5,14),4)(模腔6的,7)。 关于设备,所以建议每个进料装置(2,3,4)的至少两个Aufschäumkavitäten(14)被分配。