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Method for producing a thermoplastic coating and articles constructed therefrom

A coating method and coating technology, which is applied in the field of non-contact gap coating for the manufacture of various coatings and layered products, and can solve problems such as interference with coating adhesion

Inactive Publication Date: 2001-07-04
H B FULLER LICENSING & FINANCING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these particles are of a significant size and / or the slot nozzle has a small gap, the particles can collect on the applicator, interfering with the adhesion of the coating

Method used

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  • Method for producing a thermoplastic coating and articles constructed therefrom
  • Method for producing a thermoplastic coating and articles constructed therefrom
  • Method for producing a thermoplastic coating and articles constructed therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0078] Hot-melt adhesives corresponding to the components described in Examples and 1 and 7 were coated on the base layer using a modified PAK600 laminator from Krosnert Hamburg, Germany, the structure of which was basically the same as that shown in Figure 1B machines are similar. With this machine, the adhesive film is pressed directly onto the first base layer 1 by means of the pressing roll 5 or the second base layer 4 is pressed onto the first base layer and the adhesive, still via the pressing roll 5 . In the experiment, both methods will be tried. The dosing temperature of the hot melt was 140°C for the composition of Example 1 and 110°C for the composition of Example 7. As can be seen from Chart 14, these compositions exhibit suitably lower viscosities. This graph illustrates the viscosities in 1 and 7 above.

[0079]Coatings were formed on polyester films (Polyester RN 36 produced by Püitz Folien, Taunusstein-Wehen, Germany) and high density polyethylene fil...

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Abstract

This invention relates to a non-contact coating method for producing a substantially continuous coating and articles constructed therefrom. This invention further relates to a non-contact slot coating method for producing a variety of coatings and laminations. This invention particularly relates to a method of coating a non-porous substrate including film, foil and paper with a molten thermoplastic composition which reduces streaking caused by particles such as impurities, fillers and superabsorbent polymers. This invention further relates to thermoplastic compositions useful in the present non-contact coating method.

Description

technical field [0001] The present invention relates to a non-contact coating method for producing a substantially continuous coating and articles made therefrom. The present invention also relates to a non-contact slot coating method for the manufacture of various coated and layered articles. In particular, the present invention relates to a method of coating a substrate comprising film, thin metal sheet and paper with a hot melt thermoplastic composition which reduces streaking caused by particles and enables Realize the lamination of film-film, film-thin metal sheet and film-paper or board. Background technique [0002] Conventional slot nozzle coating, which applies hot melt thermoplastic composition to a substrate, is generally accomplished by maintaining the slot nozzle in contact with the substrate during coating so that the nozzle rests on the substrate. Applying hot melt adhesives at low coat weights is not a problem as long as the coating is not completely closed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/26B05C5/04B05D1/28B05D1/30B05D5/10B32B7/12B32B27/06B32B27/08B32B37/15B44C1/165C09J5/06C09J7/02C09J11/00C09J123/08C09J133/04
CPCB32B2037/1215B32B37/12C09J5/06B32B7/12B32B27/08B32B2317/12B32B2307/7242B32B2439/46B32B2307/412B32B37/153C09J2201/61B32B27/06B32B37/1284B32B2309/02C09J2301/304B29C65/42B32B15/043B32B38/004
Inventor 安尼格雷特·扬森
Owner H B FULLER LICENSING & FINANCING INC
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