Continuous compounding systems and methods of use

Patent metadata

Field	Value
Publication number	US-11311844-B2
Application number	US-201916278825-A
Country	US
Kind code	B2
Filing date	Feb 19, 2019
Priority date	Feb 20, 2018
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

Continuous compounding systems include a feeding section and a compounding section. Method for compounding or mixing solid matter and liquid matter include providing a continuous compounding system, adding matter to the continuous compounding system, and mixing or compounding the matter.

First claim

The invention claimed is:

1. A method of providing a mixture, the method comprising
providing a continuous compounding system that includes a feeding section, a roller cylinder located downstream of the feeding section, and a side feeder coupled to the roller cylinder,
adding initial formulation to the feeding section and upstream of the side feeder,
conveying the initial formulation from the feeding section to the roller cylinder after adding the initial formulation to the feeding section,
applying pressure to the initial formulation with the roller cylinder to form an initial material,
adding first dry solid matter and liquid matter to the side feeder to form a slurry in the side feeder, the slurry including the first dry solid matter and the liquid matter,
adding the slurry to the roller cylinder to combine with the initial material after applying pressure to the initial formulation to form the initial material, and
mixing the slurry and the initial material in the roller cylinder to provide the mixture.

2. The method of claim 1 , wherein the roller cylinder includes a first cylinder and a second cylinder located downstream of the first cylinder, the method further includes providing additional matter to the first cylinder, and the step of adding the slurry to the roller cylinder includes adding the slurry to the second roller cylinder.

3. The method of claim 2 , wherein the additional matter includes second dry solid matter.

4. The method of claim 3 , wherein the first dry solid matter and the second dry solid matter have the same formulation.

5. The method of claim 2 , wherein the additional matter further includes a tackifying resin.

6. The method of claim 1 , wherein the first dry solid matter includes calcium carbonate.

7. The method of claim 1 , wherein the liquid matter includes polyisobutylene.

8. The method of claim 1 , wherein the initial material is a molten resin.

9. A method comprising
providing a continuous compounding system that includes a feeding section and a compounding section located downstream of the feeding section,
adding initial formulation to the feeding section upstream of the compounding section,
conveying the initial formulation downstream from the feeding section to the compounding section,
applying pressure to the initial formulation with the compounding section to form an initial material,
mixing dry solid matter and liquid matter to form a slurry separate from the initial formulation,
adding the slurry to the initial material through a port in the compounding section that is downstream of the feeding section; and
mixing the slurry and the initial material in the compounding section,
wherein applying pressure to the initial formulation in the compounding section occurs upstream of the port.

10. The method of claim 9 , further comprising adding the dry solid matter and the liquid matter to a side loader before mixing the dry solid matter and the liquid matter to form the slurry.

11. The method of claim 9 , further comprising adding the slurry to the compounding section after mixing the dry solid matter and the liquid matter to form the slurry and before mixing the slurry and the initial material in the compounding section.

12. The method of claim 9 , further comprising adding the dry solid matter to the compounding section at a first axial location and a first circumferential location and adding the liquid matter to the compounding section at the first axial location and a second circumferential location.

13. The method of claim 12 , wherein the second circumferential location is circumferentially spaced apart from the first circumferential location.

14. A continuous compounding system comprising
a feeding section configured to receive initial formulation,
a compounding section configured to receive the initial formulation from the feeding section and to apply pressure to the initial formulation to form an initial material, and,
a side loader coupled to the compounding section and a liquid injector, the side loader is configured to convey solid dry matter into an open port formed in the compounding section at a location downstream of the feeding section, the liquid injector is configured to add liquid matter to at least one of the compounding section and the side loader at the location downstream of the feeding section.

15. The continuous compounding system of claim 14 , wherein the liquid injector is coupled fluidly to the side loader.

16. The continuous compounding system of claim 15 , wherein the side loader includes a side feeder configured to supply the dry solid matter to the compounding section.

17. The continuous compounding system of claim 16 , wherein the side feeder further includes a spindle and a housing arranged around the spindle to define a side-loader passageway and the liquid injector is in fluid communication with the side-loader passageway.

18. The continuous compounding system of claim 17 , wherein the spindle has a first end and a second end spaced apart from the first end, the second end of the spindle is located toward the compounding section, and the liquid injector is configured to inject fluid toward the second end of the spindle.

19. The continuous compounding system of claim 14 , wherein the initial material is a molten resin.

20. The continuous compounding system of claim 14 , wherein the compounding section includes a cylinder coupled to a downstream end of the feeding section and the open port and side feeder are spaced apart from the downstream end of the feeding section.

Assignees

• Berry Global Inc

Inventors

• Scates Donald W

Classifications

• C08K3/26

  Carbonates; Bicarbonates · CPC title

• B01F23/53

  using driven stirrers · CPC title

• B01F27/75

  with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis · CPC title

• B01F35/71775

  using helical screws · CPC title

• B29B7/603

  in measured doses, e.g. proportioning of several materials · CPC title