Multiple-chamber container for storing and mixing a multi-component liquid coating or adhesive system

Patent metadata

Field	Value
Publication number	US-11911735-B2
Application number	US-201916971940-A
Country	US
Kind code	B2
Filing date	Feb 21, 2019
Priority date	Feb 22, 2018
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

The invention relates to a multiple-chamber container ( 1, 1 *) for storing and mixing a multi-component liquid coating or adhesive system (M), comprising a first chamber ( 10 ) for a first mixing component (B) and at least one other chamber ( 20 ) for another mixing component (H), the first chamber ( 10 ) and the at least one other chamber ( 20 ) being separated by at least one separating wall ( 30 ) in liquid-tight fashion and the separating wall ( 30 ) comprising a pierceable separating layer ( 40 ). The multiple-chamber container further comprises at least one piercing element ( 50 ) for piercing the pierceable separating layer ( 40 ) in such a way that the first and the one other mixing component (B, H) mix in the first or the at least one other chamber ( 10, 20 ). The multiple-chamber container ( 1, 1 *) is characterized in that the at least one other chamber ( 20 ) is coaxial to the first chamber ( 10 ), the separating layer ( 40 ) being partially formed in the separating wall ( 30 ). The piercing element ( 50 ) is hollow, in particular hollow-cylindrical, and has at least two longitudinally offset openings ( 51 ) for introducing either the first or the other mixing component (B, H) into the chamber ( 10, 20 ) of the respective other mixing component (H, B).

First claim

The invention claimed is:

1. A multichamber vessel for storing and mixing a multicomponent liquid coating or adhesive system (M) having a first chamber for a first mixture component (B) and at least one further chamber for a further mixture component (H), where the first chamber and the at least one second chamber are divided from one another in a liquid-tight manner by at least one dividing wall, where the at least one dividing wall comprises a penetrable dividing layer, and having at least one penetrating element for penetrating the penetrable dividing layer in such a way that the first and further mixture components (B, H) mix in the first or the at least one further chamber,
wherein
the at least one further chamber is arranged coaxially relative to the first chamber, where the first chamber further takes the form of an outer vessel, where the at least one further chamber is designed as an insert in the form of a cup in the outer vessel, where the penetrable dividing layer forms part of the area of the at least one dividing wall, where the at least one penetrating element is in hollow form and has at least two longitudinally offset openings for introduction of one of the first or further mixture components (B, H) into the chamber of the respective other mixture component (H, B), where the at least one penetrating element is further braced on a curved brace surface which moves from a first location to a second location when a force above a pressure threshold is exerted, in such a way that the at least one penetrating element is moved from a first position to a second position at the transition from the first to the second location, where the at least one penetrating element penetrates the penetrable dividing layer.

2. The multichamber vessel as claimed in claim 1 ,
wherein
the volume ratio between the first chamber for the first mixture component (B) and the at least one further chamber for the further mixture component (H) is 1:1 to 9:1.

3. The multichamber vessel as claimed in claim 1 ,
wherein
the penetrable dividing layer is arranged centrally in the at least one dividing wall.

4. The multichamber vessel as claimed in claim 1 ,
wherein
the at least one dividing wall surrounding the penetrable dividing layer is in conical form.

5. The multichamber vessel as claimed in claim 1 ,
wherein
the multichamber vessel and the first chamber and/or the at least one further chamber are formed from a transparent or translucent material.

6. The multichamber vessel as claimed in claim 1 ,
wherein
the multichamber vessel has a closable outflow opening for the mixture (M) formed from the first and further mixture components (B, H).

7. The multichamber vessel as claimed in claim 6 ,
wherein
a catalyst capsule containing a catalyst material is disposed at the outflow opening, in such a way that the mixture (M) formed from the first and further mixture components (B, H) comes into contact with the catalyst material as it flows out.

8. The multichamber vessel as claimed in claim 6 ,
wherein
the multichamber vessel has a recess for accommodation, in a force-fitting manner, of an outflow nozzle, where the outflow nozzle is connectable to the outflow opening.

9. The multichamber vessel as claimed in claim 1 ,
wherein
the first chamber or the at least one further chamber has a guide for the at least one penetrating element.

10. The multichamber vessel as claimed in claim 1 ,
wherein
the first and/or the at least one further chamber has a closable opening for introducing a solvent.

11. A system for deploying a paint coating or an adhesive, comprising a multichamber vessel for storing and mixing a multicomponent liquid coating or adhesive system (M) as claimed in claim 1 , and a deployment unit, a spray gun (S), releasably connectable to the multichamber vessel.

12. A method of mixing a multicomponent liquid coating or adhesive system in a multichamber vessel as claimed in claim 1 , comprising the following method steps:
providing the first mixture component (B) in the first chamber designed as the outer vessel,
providing the further mixture component (H) in the at least one further chamber,
penetrating the penetrable dividing layer encompassed by the at least one dividing wall by means of the hollow penetrating element braced on the curved brace surface, where the at least one penetrating element moves from the first location into the second location and where the first mixture component (B) or the further mixture component (H) is introduced through the hollow penetrating element into the chamber of the respective other mixture component (H, B), and
mixing the first mixture component (B) with the further mixture component (H), assisted by agitation of the multichamber vessel.

13. The method as claimed in claim 12 ,
wherein
the volume ratio between the first mixture component (B) in the first chamber and the further mixture component (H) in the at least one further chamber is 1:1 to 9:1.

Assignees

• Covestro Intellectual Property Gmbh & Co Kg
• Covestro Deutschland Ag

Inventors

• Schreiber Marc
• Weikard Jan
• Mundstock Holger
• Maleika Robert
• Frischke Sascha
• Teunissen Wilfred
• Van Der Vegt Herman
• De Haan Michiel

Classifications

• B01F35/7162 Primary

  A container being placed inside the other before contacting the contents · CPC title

• B01F33/50114

  of the hand-held gun type · CPC title

• B01F35/32021

  Shaking by hand a portable receptacle or stirrer for mixing · CPC title

• B01F35/7137

  Piercing, perforating or melting membranes or closures which seal the compartments · CPC title

• B05B7/2408

  characterised by the container or its attachment means to the spray apparatus · CPC title