ã€Patent Nameã€‘ Oxygen-inhibiting, oxygen-inhibiting plastic beer bottle cap inner pad material and processing technology ã€Applicantã€‘ Shanghai Ziri Packing Co., Ltd. [Inventor] Wu Xiaojie [Main Applicant Address] 201108 No.899, Zhaoxing Road, Minhang District, Shanghai, China ã€ Application ã€‘ 200410054283.4
ã€ Application Date ã€‘ 2004.09.03
[Examination and announcement number] 1743241
ã€ Validation announcement date ã€‘ 2006.03.08
[Main classification number] B65D65/40(2006.01)I
[Category Code] B65D65/40 (2006.01) I B65D53/04 (2006.01) I B05D1/02 (2006.01) I B05D3/00 (2006.01) I B05D7/24 (2006.01) I B29C47/00 (2006.01) I B21D51/46 ( 2006.01)I
[Sovereign Items] 1. An oxygen-absorbing and oxygen-blocking plastic beer bottle cap inner pad material characterized in that the inner pad material has two layers and a layer is a barrier layer coated with polyvinylidene chloride in ethyl acetate solution. The second layer is an oxygen-absorbing barrier layer, and the matrix resin is an ethylene vinyl alcohol copolymer barrier resin. The ethylene content of the ethylene vinyl alcohol copolymer barrier resin is 29 to 46%. The oxygen absorbing masterbatch containing an oxygen absorber is dispersed in Within the ethylene vinyl alcohol copolymer matrix barrier resin, the amount of pyrimidine and its analogue oxygen absorbing agent accounts for 0.0001-0.1% by weight of the ethylene vinyl alcohol copolymer barrier resin; the ethylene vinyl alcohol copolymer blocks the resin pellets The moisture is controlled at 0.1-0.3%; the ethylene vinyl alcohol copolymer barrier resin has a density of 1.14 to 1.21 g/cm3.
[Instructions CD-ROM] D0610-1
[Abstract] The present invention relates to an oxygen-absorbing and oxygen-blocking plastic beer bottle cap inner pad material. A layer is a barrier layer, which is a film of polyvinylidene chloride in ethyl acetate solution, and the second layer is an oxygen-absorbing barrier layer. It is an ethylene vinyl alcohol copolymer barrier resin with an ethylene content of 29 to 46%, an oxygen absorbing masterbatch containing an oxygen absorbing agent dispersed in an ethylene vinyl alcohol copolymer matrix, and an amount of pyrimidine and the like oxygen absorbing agent added in ethylene The weight percentage of the vinyl alcohol copolymer blocking resin is 0.0001-0.1%; the moisture content of the ethylene vinyl alcohol copolymer-blocking resin pellets is 0.1-0.3%; and the resin density thereof is 1.14-1.21 g/cm3. In the first step of the process, polyvinylidene chloride is dissolved in ethyl acetate to form a transparent solution. The thin layer is evenly coated on the inner bottom of the bottle cap by spraying, and the first layer of barrier layer is formed after natural drying; The ethylene vinyl alcohol copolymer barrier resin oxygen-absorbing layer was extruded on the first barrier layer by melt extrusion.
ã€ Agency ã€‘ Shanghai Dongfangyi Intellectual Property Office [Agent] Tang Lisha
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