TH75364B - Resin coated metal sheets for containers - Google Patents

Abstract

Resin-coated metal containers for containers with excellent carry-out capability and consistent with other properties. will be provided Resin-coated sheet metal includes a layer of resin (A) that has a multi-layer structure and is arranged on the sides where After the plaque is formed into a container, it becomes the inside of the container; and a resin layer (B) is placed on the side where becomes the exterior of the container. The resin layer (A) contains polyester as the main component. and acidic constituents, which are the constituent units of polyesters, include acid units. At least 85% by mol terephthalic, the resin layer (A) includes the top resin layer (al) that will be in contact with the container contents. in which the top resin layer (al) contains a specific amount of wax components and has a specific thickness. Raman bar intensity ratio (I2968/I3085) On the surface of the resin layer (al) is 0.6 to 0.9, the resin layer (B) shall include polyester (I) composed by the Larger is polyethylene terephthalate. and polyester (II) composed mainly of polybutylene terephthalate, polyester (I) and polyester (II). was contained at a specific ratio, and the Raman band intensity ratio on the surface of the resin layer (B) was 0.8 to 1.0:

Claims (1)

Disclaimer (all) which will not appear on the advertisement page: Edit 12/10/2018 No disclaimer. -------------------------------------------------- ---------- 1. Resin coated metal plates for containers, consisting of: sheet metal; A multi-layered and structured resin layer (A), a polymer of acidic constituents and The glycol component, as the main component, is the resin layer (A) placed on the side where, after the plaque has been formed into the container, becomes the inside of the container; And a resin (B) layer with a polyester as the main component and is placed on The side which becomes the outer side of the container, where i) the acidic component which is the constituent unit of the containing polyester As the main component of the resin layer (A) is also included At least 85% terephthalic acid units by mol, ii) The resin layer (A) includes the top resin layer (al) that will be in contact with the matter. The filling of the container to be formed, in which the topmost resin layer (al) contains 0.10 to 2.0% wax content by mass versus mass. Of the topmost resin layer (al) and thickness within the range of 0.5 μm or more and 10 μm or less, iii) ratio (I2968 / I3085) of the Laman intensity (I2968) at 2,968 (formula) 5. The cm-1 was measured by Raman spectroscopy on the surface of the resin layer (al) against the Raman band intensity (I3085) at 3,085 (formula) 5 cm-1 measured on the floor. The surface of the resin layer (al) is 0.6 or more and 0.9 or less, iv). The resin layer (B) contains a polyethylene terephthalate (I) or polyethylene terephthalate. Polyethylene terephthalate copolymer containing 15% by mole or less of the copolymer and polymerization components ( II) that is the resulting polybutylene terephthalate or polybutylene terephthalate. A copolymer containing 15% by mole or less of the copolymer composition, and the ratio of polyester (I) to polyester (II). ) Is 10:90 to 60:40 that is based on% by mass, and v) the ratio (I2968 / I3085) of the Laman intensity (I2968) at 2,968 (formula) 5 cm-1 being measured. By Raman spectroscopy on the surface of the resin layer (B) to the Raman band intensity (I3085) at 3,085 (formula) 5 cm-1 measured on the surface of the resin layer (B). Be 0.8 or more and 1.0 or less