Microlayer coextrusion for compounding, pelletizing, and masterbatches

Patent metadata

Field	Value
Publication number	US-9908975-B2
Application number	US-201514869189-A
Country	US
Kind code	B2
Filing date	Sep 29, 2015
Priority date	Sep 29, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

The present disclosure generally relates to pelletizing and compounding extrusion die systems. In particular, the present disclosure relates to the cyclical extrusion of materials to generate small sized grain features, generally in the range of micro and nanosized grain features.

First claim

The invention claimed is:

1. A pellet composition comprising:
a. a solid object of 0.1 mm-1 cm on one axis by 0.1 mm-2 cm on a second axis;
b. ten to 10 6 layers per millimeter along at least one axis;
c. wherein each layer is 0.1 nanometer to 9 millimeter in width;
d. wherein at least one layer comprising a composition comprising a hydrophobic agent, an acidic agent, a high concentration of an agent, or a high viscosity composition; and
e. at least one other layer comprises a composition of a hydrophilic agent, basic agent, low concentration of an agent or a low viscosity composition.

2. A pellet composition according to claim 1 wherein the pellet is cylindrical, spherical, capsular, conical, conical frustum, cubular, hemispherical, pyramidal, rectangular prismatic or tubular.

3. A pellet composition according to claim 2 wherein at least one layer is 0.1-100 nanometer on one axis.

4. A pellet composition according to claim 2 wherein at least ten layers are 0.1-100 nanometer on one axis.

5. A pellet composition according to claim 3 wherein at least one hundred layers are 0.1-100 nanometer on one axis.

6. A pellet composition according to claim 3 wherein at least one thousand layers are 0.1-100 nanometer on one axis.

7. A pellet composition according to claim 3 wherein at least one layer is 0.01-1 micrometer on one axis.

8. A pellet composition according to claim 3 wherein at least one layer is 0.01-1 millimeter on one axis.

9. A pellet composition according to claim 3 wherein the melting point of the pellet is between about 0° C. to about 500° C.

10. A pellet composition according to claim 3 wherein the layers are twisted or turned geometries.

11. A pellet composition according to claim 3 wherein layers can take the form of flat layers, annular or tubular rings.

12. A pellet composition according to claim 3 comprising multiple components.

13. A pellet composition according to claim 3 comprising a core.

14. A pellet composition according to claim 3 wherein one or more layers additionally contain filler particles or fibers.

15. A pellet composition according to claim 3 wherein said fibers include yarns, a tow of fibers or yarns, a weave, a non-woven, chopped fiber, a chopped fiber mat (with random or ordered formats), or combinations of these formats.

16. A method of mixing one stream of material comprising a hydrophobic agent, an acidic agent, a high concentration of an agent, or a high viscosity composition; with a second stream of material comprising a hydrophilic agent, basic agent, low concentration of an agent or a low viscosity composition; by layering the streams into a single merged stream containing multiple layers wherein the thickness of the first stream layers is about the same as its largest component molecular or particle size and the thickness of the second stream layers is about the same as its largest component molecular or particle size.

17. A method according to claim 16 , wherein a steam of material with a high concentration of an agent is diluted with a steam of material with a less concentrated material by layering the streams into a single merged stream containing multiple layers wherein the thickness of the layers is about the same as the components molecular or particle size.

Assignees

• Guill Tool & Eng Co Inc
• Guill Tool & Eng Co Inc

Inventors

• Guillemette Richard
• Peters Robert

Classifications

• B29C48/0022

  combined with cutting · CPC title

• B29C48/03

  characterised by the shape of the extruded material at extrusion · CPC title

• C08J2300/00

  Characterised by the use of unspecified polymers · CPC title

• B29C48/304

  specially adapted for bringing together components, e.g. melts within the die · CPC title

• B29K2101/10

  Thermosetting resins · CPC title