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Gasket, container closure and polymer compound therefor and application

A closed body, polymer technology, applied in the direction of sealing, closing, transportation and packaging

Active Publication Date: 2020-09-11
ACTEGA DS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, such PVC-based sealing elements require the use of plasticizers, which are likewise a concern for unacceptably altering the food

Method used

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  • Gasket, container closure and polymer compound therefor and application
  • Gasket, container closure and polymer compound therefor and application

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Basically, the production method according to the invention assumes that the container closure blank is made of metal, which is preferably initially pretreated on its inner side with a suitable primer. In the case of plastic container closures, the pretreatment described is not required.

[0030] Usually, the composition of the primer is based on epoxy phenol. Particularly suitable here are the paint systems of the company ACTEGA Rhenania (basecoat TPE279 with adhesive coater TPE1500), to which the most preferred compounds according to the invention adhere particularly well. However, the adhesive coating can also be based on polyesters.

[0031] Alternatively, a suitable primer layer is applied here by lamination, lining or possibly also by coextrusion.

[0032] A polymer material in thermoflowable form which is to form the seal is applied to the inside of the thus pretreated body. Extrusion is particularly suitable here, in which the sealing compound is in a tempera...

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Abstract

The invention relates to a sealing gasket, a container sealing body and a polymer composite used for the sealing gasket as well as application. The polymer composite is a polymer composite used for the sealing gasket of the container sealing body, especially used for a fat-containing filler; the polymer composite is formed for reducing migration of a composite component into the filler. The polymer composite is characterized in that Shore A hardness of the polymer composite ranges from 45 to 90; the polymer composite shows 30%-90% compression permanent deformation (DVR) at a temperature being 70 DEG in a compression deformation test similar to an ASTM D395-97 method B.

Description

[0001] The application of the present invention was filed on November 20, 2009, the application number is 20098016254.6 (the international application number is PCT / EP2009 / 008273) and the title of the invention is "Polymer for sealing in the case of fat-containing fillers" The divisional application of the invention patent application for compound”. technical field [0002] The invention relates to a polymer compound for sealing liners of container closures (made of metal or plastic) for containers containing fillings containing, in particular, fats, the polymer The compound compound is designed such that the migration of the sealing component into the fat-containing filler is reduced. Background technique [0003] Larger container closures of the type considered here are in particular the lug caps typically used to enclose screw top jars for food or drink. Said foods often involve fat-containing products, such as prepared foods, condiments, delicacies, fish in oil, savory ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/00C08L53/00C08L23/08C08L23/06C08L23/12C08L53/02B65D53/00
CPCB65D53/00C08L23/00C08L23/06C08L23/0815C08L23/12C08L53/00C08L53/025C08L2205/02C08L2205/03C08L2205/035C08L2207/062C08L2314/06
Inventor 克里斯蒂亚娜·波尔乔治·施伦克吕迪格·维滕贝格
Owner ACTEGA DS GMBH