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    • 6. 发明授权
    • Production method of polyamide
    • 聚酰胺的生产方法
    • US07053171B2
    • 2006-05-30
    • US10849027
    • 2004-05-20
    • Ryoji OtakiTomomichi Kanda
    • Ryoji OtakiTomomichi Kanda
    • C08G69/08C08G69/26
    • C08G69/26C08G69/28C08L29/04C08L77/00C08L77/02C08L77/06C08L2666/04
    • In the production method of the present invention, the polyamide is produced by the polycondensation of a diamine component and a dicarboxylic acid component comprising a straight-chain α,ω-aliphatic dicarboxylic acid and an aromatic dicarboxylic acid. The dicarboxylic acid component is first made into a suspension phase of the solid aromatic dicarboxylic acid in a molten straight-chain α,ω-aliphatic dicarboxylic acid. A part of the diamine component is added while the reaction system is in the suspension phase. Then, the reaction system is made into a homogeneous molten phase, to which the rest of the diamine component is added. Finally, the reaction system is kept at temperatures within a specific range to complete the polycondensation.
    • 在本发明的制造方法中,通过二胺成分和包含直链α,ω-脂族二羧酸和芳族二羧酸的二羧酸成分的缩聚制备聚酰胺。 首先将二羧酸组分制成固体芳族二羧酸在熔融的直链α,ω-脂族二羧酸中的悬浮相。 当反应体系处于悬浮相时,加入一部分二胺组分。 然后,将反应体系制成均匀的熔融相,加入剩余的二胺组分。 最后,将反应体系保持在特定范围内,以完成缩聚反应。
    • 8. 发明申请
    • MULTI-LAYERED BOTTLE
    • 多层瓶
    • US20090120900A1
    • 2009-05-14
    • US11994660
    • 2006-07-06
    • Jun MitaderaTomomichi KandaKazunobu MaruoMasashi Kurokawa
    • Jun MitaderaTomomichi KandaKazunobu MaruoMasashi Kurokawa
    • B65D90/02
    • B65D1/0215B32B7/02B32B27/36Y10T428/1352Y10T428/1379Y10T428/1383
    • There is provided a multilayer bottle comprising a barrel portion including an outermost layer, an innermost layer and at least one barrier layer interposed between the outermost layer and the innermost layer, which satisfies the requirements represented by the following formulae (1) to (3) at the same time: OTR≦0.2 cc·mm/(m2·day·atm)  (1) where OTR represents an average oxygen transmission rate of the barrier layer of the barrel portion; 20≦(Average degree of orientation of barrier layer of barrel portion)≦45; and  (2) 0≦b/a≦100≦200  (3) where “a” represents an average thickness (μm) of the barrier layer of the barrel portion; and “b” represents an average thickness (μm) of the barrier layer of a bottom portion of the bottle. The multilayer bottle is free from delamination owing to impact upon dropping even when the bottle is formed with irregularities and bends and therefore exhibits a large freedom of design choice.
    • 提供了一种多层瓶,其包括筒状部分,其包括最外层,最内层和插入在最外层和最内层之间的至少一个阻挡层,其满足由下式(1)至(3)表示的要求, 同时:<?in-line-formula description =“In-line Formulas”end =“lead”?> OTR <= 0.2 cc.mm/(m2.day.atm)(1)<?in-line -formulae description =“In-line Formulas”end =“tail”?>其中OTR表示筒部分的阻挡层的平均氧气透过率; <?in-line-formula description =“在线公式”end =“lead”?> 20 <=(筒部阻挡层的平均取向度)<= 45; 和(2)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> 0 < = b / a <= 100 <= 200(3)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中“a”表示阻挡层的平均厚度(mum) 的桶部分; “b”表示瓶的底部的阻挡层的平均厚度(mum)。 即使当瓶形成不规则和弯曲时,多层瓶也不会因为落下的冲击而脱层,因此表现出大的设计自由度。