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    • 52. 发明授权
    • Packaging bag for sheets for electrophoresis
    • 包装袋用于电泳片
    • US4844787A
    • 1989-07-04
    • US100769
    • 1987-09-24
    • Mutsuo AkaoTakeshi Kato
    • Mutsuo AkaoTakeshi Kato
    • B32B27/32C08J5/12G01N27/26G01N27/447
    • G01N27/44704Y10T428/1379
    • A packaging bag for a sheet for electrophoresis comprising a polyethylene resin layer containing more than 50 wt. % of polyethylene resin having a density of 0.935 to 0.970 g/cm.sup.3 and a melt index of 0.1 to 1.5 g/10 minutes, the thickness of said polyethylene resin layer is 70 to 200 .mu.m, and haze of said bag is 15 to 95%.This packaging bag is excellent is moistureproofness capable of preserving the sheets for electrophoresis without deterioration of quality, and the sheets for electrophoresis can be inspected from the outside. This packaging bag has not the problem as the packaging material for the sheet for electrophoresis such as curling, insertion nor blocking, and it is inexpensive.
    • 一种用于电泳片的包装袋,包括含有大于50重量% %的密度为0.935〜0.970g / cm 3,熔体指数为0.1〜1.5g / 10分钟的聚乙烯树脂,所述聚乙烯树脂层的厚度为70〜200μm,所述袋的雾度为15〜95 %。 该包装袋具有优异的防水性,能够在不劣化质量的情况下保存用于电泳的片材,并且可以从外部检查电泳用片材。 这种包装袋没有问题,因为用于电泳用片材的包装材料如卷曲,插入或阻塞,并且价格便宜。
    • 53. 发明授权
    • Packaging case for photosensitive sheet films
    • 感光片薄膜包装盒
    • US4828106A
    • 1989-05-09
    • US66528
    • 1987-06-26
    • Mutsuo AkaoKenji Tajima
    • Mutsuo AkaoKenji Tajima
    • G03B42/04B65D81/30G03C3/00
    • B65D81/30G03C3/00G03C3/003Y10T428/1352Y10T428/1397Y10T428/3188Y10T428/31884Y10T428/31888Y10T428/31913
    • In a packaging case for photosensitive sheet film comprising a light-shielding tray which receives a stack of said photosensitive sheet films and a light-shielding flexible cover sheet which is stuck in peelable state to seal the opening for taking out said stack, the improvement comprising that said tray is made of resin comprising 50 to 90 wt. % of a propylene-.alpha.-olefin copolymer resin having a melt index of higher than 18 g/10 minutes, a bending elastic modulus of more than 9,000 kg/cm.sup.2 and a notched Izod impact strength of more than 2.0 kg cm/cm at 23.degree. C., 0.2 to 5.0 wt. % of carbon black and 9.8 to 49.8 wt. % of linear low density polyethylene resin.In the light-shielding tray of the invention, rigidity is secured by the propylene-.alpha.-olefin copolymer resin, and troubles caused by this copolymer resin such as mold shrinkage, warp and twist of the product are overcome and remarkable lowering of physical strength by blending carbon black are attained by incorporating the L-LDPE resin. Accordingly, even when this tray is made thin, sufficient rigidity and physical strength can be secured, although the tray is large. Since the deformation is small sealability between the light-shielding flexible cover sheet is acceptable. Moldability of the resin composing the tray is also sufficient.
    • 在一种用于感光片的包装盒中,所述包装盒包括一个遮光托盘,该遮光托盘容纳所述感光片层的叠层;以及遮光柔性覆盖片,其被粘贴在可剥离状态以密封用于取出所述堆叠的开口,其改进包括 所述托盘由包含50至90wt。 %的熔体指数高于18g / 10分钟的丙烯-α-烯烃共聚物树脂,弯曲弹性模量大于9000kg / cm2,缺口伊佐德冲击强度在23℃时大于2.0kg / cm ℃,0.2〜5.0wt。 %的炭黑和9.8〜49.8wt。 %线性低密度聚乙烯树脂。 在本发明的遮光托盘中,通过丙烯-α-烯烃共聚物树脂确保刚性,克服了由共聚物树脂引起的诸如模具收缩,产品翘曲和扭曲的麻烦,并通过 通过掺入L-LDPE树脂来实现混合炭黑。 因此,尽管托盘较大,但是即使该托盘变薄,也能够确保足够的刚性和物理强度。 由于遮光柔性覆盖片的变形小密封性是可以接受的。 构成托盘的树脂的成型性也足够。
    • 56. 发明授权
    • Packaging film for photosensitive materials for photographic purpose
    • 用于感光材料的包装膜用于摄影目的
    • US4663218A
    • 1987-05-05
    • US769573
    • 1985-08-26
    • Mutsuo Akao
    • Mutsuo Akao
    • B65D81/30B32B15/08B32B15/085B65D65/40G03C3/00B32B7/02
    • B32B15/08G03C3/00Y10S430/162Y10T428/1338Y10T428/24942Y10T428/2495Y10T428/24992Y10T428/31692Y10T428/31938
    • A packaging film for photosensitive materials for photographic purposes which is a laminated film containing at least a metallized film layer and two polyethylene polymer layers which are located on both sides of the metallized film layer, at least one of the above polyethylene polymer layers contains more than 50 wt % of linear low density polyethylene manufactured by a low pressure method, and side or both of the above polyethylene polymer layers contains 0.3 to 30 wt % of a light-shielding material, and the strength of one or both sides of the above polyethylene polymer layers is stronger than the adhesive force between the above metallized film and the difference in the thickness of the polyethylene polymer layers is smaller than 50%.This film is superior in physical strength, moisture proofing, gas barrier, light-shielding and antistatic character, and it is superior as a packaging film for a photosensitive material for photographic purpose.
    • 一种用于照相用途的感光材料的包装膜,其是至少含有金属化膜层和位于金属化膜层两侧的两个聚乙烯聚合物层的层压膜,至少一种上述聚乙烯聚合物层包含多于 50重量%的由低压法制造的线性低密度聚乙烯和上述聚乙烯聚合物层的一面或两面含有0.3至30重量%的遮光材料,并且上述聚乙烯的一面或两面的强度 聚合物层比上述金属化膜之间的粘合力更强,并且聚乙烯聚合物层的厚度差小于50%。 该膜具有优异的物理强度,防潮性,阻气性,遮光性和抗静电性,并且作为用于感光材料的包装膜是优异的。
    • 57. 发明授权
    • Packaging material for photosensitive materials for photographic purpose
    • 用于摄影目的的感光材料的包装材料
    • US4661395A
    • 1987-04-28
    • US864300
    • 1986-05-16
    • Mutsuo Akao
    • Mutsuo Akao
    • B65D65/40B32B15/08B32B15/085B32B15/20B65D65/16G03C3/00B32B5/16
    • B32B15/08G03C3/00Y10T428/2495Y10T428/263Y10T428/31681Y10T428/31692
    • A packaging material for photosensitive materials for photographic purpose comprisinga light-shielding L-LDPE film layer containing a low-pressure linear low-density polyethylene resin as the largest component and 0.1 to 15 wt. % of a light-shielding material and being located as the inner surface layer,a metal layer provided on the above light-shielding L-LDPE film layer directly or through an adhesive layer, anda flexible sheet layer laminated on the metal layer directly or through an adhesive layer,and having delamination resistance between the light-shielding L-LDPE film layer and the metal layer or between the metal layer and the flexible sheet layer in the range of 5 to 300 g/15 mm width.In the packaging material of the invention, the properties necessary as the packaging material for photosensitive materials such as physical strength, moisture proofing, gas barrier and light-shielding are secured by the light shielding L-LDPE film layer, the metal layer and the flexible sheet layer. By adjusting the delamination resistance of, at least, one side of the metal layer, the physical strength is further raised. The packaging material of the invention is superior in the small difference in tear strength between longitudinal direction and lateral direction, in physical strengths, in heat sealing properties and in light-shielding property. As a result, its thickness can appreciably be made thinner than the conventional packaging material, and its cost is lowered.
    • 一种用于摄影用感光材料的包装材料,包括含有作为最大成分的低压线性低密度聚乙烯树脂的遮光性L-LDPE膜层和0.1〜15重量% %的遮光材料并且被定位为内表面层,直接或通过粘合剂层设置在上述遮光性L-LDPE膜层上的金属层,以及直接层压在金属层上的柔性片层 通过粘合剂层,并且在光屏蔽L-LDPE膜层和金属层之间或者在金属层和柔性片层之间具有在5至300g / 15mm宽度范围内的防分层性。 在本发明的包装材料中,通过遮光L-LDPE膜层,金属层和柔性层确保作为感光材料的包装材料所必需的性能,如物理强度,防潮性,阻气性和遮光性 片层。 通过调整金属层的至少一侧的分层电阻,进一步提高物理强度。 本发明的包装材料在纵向和横向之间的撕裂强度差异,物理强度,热封性能和遮光性方面均优异。 结果,其厚度可以明显地比常规的包装材料薄,并且其成本降低。