子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Method of making torsion springs | US30148039 | 1939-10-26 | US2251417A | 1941-08-05 | PARKER GLENN H |
| 22 | Method of making molded articles | US43190130 | 1930-02-27 | US1952528A | 1934-03-27 | BRUCE BEDFORD |
| 23 | A method of making a laminated bottle | EP03015243.3 | 2000-10-02 | EP1356915B1 | 2011-11-30 | Hamamoto, Keiji; Mitsuhashi, Hirokazu |
| 24 | METHOD OF PRODUCING LAMINATED BOTTLES HAVING PEELABLE INNER LAYER | EP00963061.7 | 2000-10-02 | EP1180424B1 | 2004-04-21 | HAMAMOTO, Keiji, Taisei Kako Co Ltd; MITSUHASHI, Hirokazu, Taisei Kako Co Ltd |
| A method of producing laminated bottles having an outer layer and an inner layer peelably laminated to the inner surface of the outer layer, comprising the step of injection molding a preform for the outer layer by melt injection of a first resin, the step of injection molding a preform for the inner layer on the inner surface side of the outer layer preform, by melt injection of a second resin, and the step of blow molding a parison composed of the outer layer preform and inner layer preform to provide the laminated bottle. The melting point of the second resin is lower than that of the first resin, whereby even if the inner layer is formed of a resin material having a lower melting point than that of the outer layer, an appropriate lamination structure can be obtained while providing a parison of high precision by injection molding and achieving facilitation of partial bonding between the inner and outer layers. Further, air vents are easily and reliably formed in the outer layer without damaging the inner layer. | ||||||
| 25 | METHOD OF PRODUCING LAMINATED BOTTLES HAVING PEELABLE INNER LAYER | EP00963061 | 2000-10-02 | EP1180424A4 | 2002-08-28 | HAMAMOTO KEIJI; MITSUHASHI HIROKAZU |
| A method of producing laminated bottles having an outer layer and an inner layer peelably laminated to the inner surface of the outer layer, comprising the step of injection molding a preform for the outer layer by melt injection of a first resin, the step of injection molding a preform for the inner layer on the inner surface side of the outer layer preform, by melt injection of a second resin, and the step of blow molding a parison composed of the outer layer preform and inner layer preform to provide the laminated bottle. The melting point of the second resin is lower than that of the first resin, whereby even if the inner layer is formed of a resin material having a lower melting point than that of the outer layer, an appropriate lamination structure can be obtained while providing a parison of high precision by injection molding and achieving facilitation of partial bonding between the inner and outer layers. Further, air vents are easily and reliably formed in the outer layer without damaging the inner layer. | ||||||
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