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Polyvinylidene chloride coating, process for producing a coating and use thereof

A technology of polyvinylidene chloride and coating, applied in the direction of coating, chemical instruments and methods, layered products, etc., can solve the problems of material damage, insufficient sliding ability, etc., and achieve the elimination of film shrinkage, reduction of frictional resistance, improvement of Loading effect

Active Publication Date: 2007-06-06
KLOECKNER PENTAPLAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A consequence of the blocking tendency of freshly coated PVDC is that, due to the insufficient sliding capacity between the film rolls and the concomitant slack, tension develops along the film surface which, if the blocking tendency is too high, may even lead to Material failure caused by film unraveling into individual films or layers

Method used

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  • Polyvinylidene chloride coating, process for producing a coating and use thereof
  • Polyvinylidene chloride coating, process for producing a coating and use thereof
  • Polyvinylidene chloride coating, process for producing a coating and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] The proportion of HDPE dispersion is 1% by volume, based on the total volume of the coating (in liters). The relative weight ratio χ of PVDC and HDPE in the dried film is calculated as follows:

[0054] χ PVDC = 100 · V PVDC · ρ PVDC · FK PVDC V PVDC · ρ PVDC · FK PVDC + V PE · ρ PE · FK PE

[0055] ...

Embodiment 2

[0065] components

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Abstract

The invention relates to a coating (8) composed of polyvinylidene chloride which contains particles (12) of HDPE. The incorporated particles can also be polymers selected from the group comprising LDPE, LLDPE, PP, PVDC, PVC, polyamides, polyurethanes, polyacrylates, polystyrenes, acrylonitrile-butadiene-styrene polymers (ABS), PTFE, hard waxes, synthetic resins, and mixtures and copolymers thereof. The coating (8) is applies to a film (9) in a composite that has a substrate film (11) to which the film (9) is bonded by a bonding agent (10).

Description

technical field [0001] The invention relates to a polyvinylidene chloride-based coating for sheet-shaped materials, a method for producing the coating and its use. Background technique [0002] Multilayer composites, hereinafter referred to as "composites" or "laminate films", are used in particular for packaging food and pharmaceutical products. Often, the top film or top layer of such composites is coated with a vinylidene chloride polymer or copolymer dispersion. For example for the packaging of pharmaceutical products, PVC films or PVC-PE composite films are coated with vinylidene chloride copolymer dispersions and then processed in a thermoforming process into blisters, which are then filled with packaging items and covered with aluminum foil or polymer foil The membrane is closed by sealing. Vinylidene chloride monomer is typically polymerized with methacrylates, acrylates, vinyl chloride or acrylonitrile to form copolymers. The purpose of the vinylidene chloride co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/08C08J7/04C08L27/08B32B27/28B32B15/08C08J7/043
CPCY10T428/31924Y10T428/31855Y10T428/3192C08J2427/00Y10T428/31692C08J7/047C09D127/08B29K2027/08C08L27/08C08J2327/04Y10T428/25C08J7/0427C08J7/043C08L2666/02
Inventor J·明斯特尔H-J·延尼
Owner KLOECKNER PENTAPLAST