IP Library › Patent Application 16639630
Patent Application
App. No. 16/639,630

CONTAINER HAVING AN UNFOLDED CONTAINER LAYER, CONTAINING A PLURALITY OF PARTICLES, AND HAVING A POLYMER LAYER

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Quick Facts
Patent No.
US None
App. No.
16/639,630
Abstract

The invention relates to a container comprising a container wall that partly surrounds a container interior, wherein the container wall a) has a container opening; b) comprises a container layer comprising i) a multitude of particles, and ii) no fold and no crease;  and c) comprises a first polymer layer that at least partly superimposes the container layer; wherein the container interior a. has a maximum diameter in a plane perpendicular to a height of the container interior, and b. has a diameter less than the maximum diameter of the container interior at least in sections in the direction from the plane to the container opening. The invention further relates to a method of superimposing a container precursor with a polymer composition; a container obtainable by that method; an apparatus for superimposing a container precursor with a polymer composition; a method of filling and closing one of the aforementioned containers and the closed container obtainable thereby; and uses of a filling machine, of one of the aforementioned containers, of a polymer composition, and of a powder coating system.

Claims (36)

1 . A container comprising a container wall that partly surrounds a container interior, wherein the container wall

a) has a container opening;

b) comprises a container layer comprising

i) a multitude of particles, and

ii) no fold and no crease;

 and

c) comprises a first polymer layer that at least partly superimposes the container layer;

wherein the container interior

a. has a maximum diameter in a plane perpendicular to a height of the container interior, and

b. has a diameter less than the maximum diameter of the container interior at least in sections in the direction from the plane to the container opening.

2 . The container as claimed in claim 1 , wherein the particles of the multitude of particles are fibers.

3 . The container as claimed in claim 2 , wherein the fibers comprise a chemical pulp or a mechanical pulp or both.

4 . The container as claimed in claim 1 , wherein the container layer comprises solids in a proportion within a range from 50% to 99.9% by weight, based on the weight of the container layer.

5 . The container as claimed in claim 1 , wherein the first polymer layer at least partly superimposes the container layer on a side remote from the container interior.

6 . The container as claimed in claim 1 , wherein the first polymer layer at least partly superimposes the container layer on a side facing the container interior.

7 . A method comprising, as method steps,

a) providing a container precursor comprising a container precursor wall partly surrounding a container precursor interior, wherein the container precursor wall

I. has a container precursor opening, and

II. comprises a container layer comprising a multitude of particles,

 wherein the container precursor interior

i. has a maximum diameter in a plane perpendicular to a height of the container precursor interior, and

ii. has a diameter less than the maximum diameter of the container precursor interior at least in sections in the direction from the plane to the container precursor opening; and

b) at least partly superimposing the container layer with a first polymer composition.

8 . The method as claimed in claim 7 , wherein the container layer does not comprise any fold or any crease.

9 . The method as claimed in claim 7 , wherein the container precursor is provided in process step a) with a minimal first moisture content of the container layer,

wherein the container layer in method step b) has a further moisture content,

wherein the minimal first moisture content differs from the further moisture content by not more than 10% by weight, wherein each of the moisture contents are based on the weight of the container layer.

10 . The method as claimed in claim 7 , wherein the providing of the container precursor in method step a) comprises producing the container layer from a composition,

wherein the composition comprises

a. the multitude of particles, and

b. a liquid.

11 . The method as claimed in claim 7 , wherein the container layer in method step b) is superimposed with the first polymer composition at least on a side facing the container precursor interior.

12 . The method as claimed in claim 7 , wherein the container layer in method step b) is superimposed with the first polymer composition at least on a side remote from the container precursor interior.

13 . The method as claimed in claim 7 , wherein the first polymer composition comprises a first multitude of polymer particles.

14 . The method as claimed in claim 7 , wherein the container layer in method step b) has a moisture content within a range from 0% to 20% by weight, based on the weight of the container layer.

15 . The method as claimed in claim 7 , wherein the first polymer composition in method step b) has been electrically charged with respect to the container precursor wall.

Assignments (3)
CHANGE OF NAME Recorded May 16, 2024
From: SIG COMBIBLOC SERVICES AG
To: SIG SERVICES AG
Reel/Frame 067434/0720 →
MERGER AND CHANGE OF NAME Recorded May 16, 2024
From: SIG TECHNOLOGY AG; SIG COMBIBLOC SERVICES AG
To: SIG COMBIBLOC SERVICES AG
Reel/Frame 067434/0422 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2020
From: VIERBOOM, WERNER
To: SIG TECHNOLOGY AG
Reel/Frame 052341/0372 →