(a) 30 to 90 wt. % of a polyvinylchloride-(PVC)-polymer,(b) 7 to 25 wt. % of an acrylic resin,(c) 3 to 40 wt. % of a crosslinking agent, which is produced from phenol, para-tert.-butylphenol, xylenol or a mixture thereof, and formaldehyde,(d) 0 to 8 wt. % additive,(e) 0 to 50 wt. % pigment and(f) a solvent-component,where all weight percentages are on the basis of the total dry weight of the coating composition (without solvents) and the composition is substantially free of bisphenol-A-diglycidyl-ether (“BADGE”) and also substantially free of bisphenol-A-resins. The composition provides metal can coatings that have suitable flexibility, scratch resistance, adherence and sterilization resistance when processed in contact with food. The coatings are suitable for three-piece cans as well as deep-drawn metal cans. In particular they are, however, useful for lids that are to be torn open due to their extraordinary flexibility and sterilization resistance."/> BADGE- and BPA-Free Can Coating
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BADGE- and BPA-Free Can Coating

机译:不含BADGE和BPA的罐头涂料

摘要

The present invention relates to a composition, which is useful for producing coatings for metal sheet substrates of metal cans for storing and/or transporting food or beverages or a lid thereof, and which comprises the following components:(a) 30 to 90 wt. % of a polyvinylchloride-(PVC)-polymer,(b) 7 to 25 wt. % of an acrylic resin,(c) 3 to 40 wt. % of a crosslinking agent, which is produced from phenol, para-tert.-butylphenol, xylenol or a mixture thereof, and formaldehyde,(d) 0 to 8 wt. % additive,(e) 0 to 50 wt. % pigment and(f) a solvent-component,where all weight percentages are on the basis of the total dry weight of the coating composition (without solvents) and the composition is substantially free of bisphenol-A-diglycidyl-ether (“BADGE”) and also substantially free of bisphenol-A-resins. The composition provides metal can coatings that have suitable flexibility, scratch resistance, adherence and sterilization resistance when processed in contact with food. The coatings are suitable for three-piece cans as well as deep-drawn metal cans. In particular they are, however, useful for lids that are to be torn open due to their extraordinary flexibility and sterilization resistance.
机译:本发明涉及一种组合物,其用于生产用于存储和/或运输食品或饮料或其盖的金属罐的金属板基板的涂层,并且其包含以下组分: (a)30至90 wt。 %的聚氯乙烯-(PVC)-聚合物, (b)7至25 wt。 %的丙烯酸树脂, (c)3至40 wt。由苯酚,对叔丁基苯酚,二甲苯酚或它们的混合物制得的交联剂的百分比,以及甲醛, (d) 0至8 wt。 %Additive, (e)0至50 wt。 %颜料和 (f)溶剂成分,其中所有重量百分比均基于涂料组合物的总干重(无溶剂),且该组合物基本上不含双酚-A-二缩水甘油醚(“ BADGE”),也基本上不含双酚-A-树脂。该组合物提供的金属罐涂料在与食品接触时具有合适的柔韧性,耐刮擦性,粘附性和耐灭菌性。该涂料适用于三片罐以及深冲金属罐。但是,由于其非凡的柔韧性和耐灭菌性,它们特别适用于要撕开的盖子。

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