Microlayer coextrusion for compounding, pelletizing, and masterbatches

Patent metadata

Field	Value
Publication number	US-2017190845-A9
Application number	US-201514869189-A
Country	US
Kind code	A9
Filing date	Sep 29, 2015
Priority date	Sep 29, 2014
Publication date	Jul 6, 2017
Grant date	—

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

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; and c. wherein each layer is 0.1 nanometer to 9 millimeter in width.

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

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

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

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

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

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

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

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

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

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

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

13 . A pellet according to claim 3 comprising two compositions wherein one composition comprises hydrophobic agents and the second composition comprises hydrophilic agents, or one composition comprises acidic agents and the second composition comprises basic agents, or one composition comprises high concentration of agents and the second composition comprises a low concentration of agents or the agents are absent, or one composition comprises a high viscosity and the second composition comprises a low viscosity.

14 . A pellet according to claim 3 comprising a core.

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

16 . A pellet 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.

17 . A method of mixing one stream of material with a second stream of material 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.

18 . A method of diluting a concentrated stream of material with a less concentrated stream of 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.

19 . An extruder attachment which forms a stream of molten material comprising of multilayers of milli, micro or nanometer thickness from the output of one or more extruders to prior subsequent processing of the melt stream.

20 . An extruder according to claim 17 with an integrated device as a component following pressurization by the extruder's one or more screws.

Assignees

• Guill Tool & Eng Co Inc

Inventors

• Guillemette Richard
• Peters Robert

Classifications

• B29C48/0022

  combined with cutting · CPC title

• B29K2101/10

  Thermosetting resins · CPC title

• B29L2031/772

  Articles characterised by their shape and not otherwise provided for (closed loop B29L2031/709; ring-like B29L2031/7096; corrugated B29L2016/00, flat B29L2007/00; hollow B29L2022/00; screw-threaded B29L2001/00; toothed B29L2031/775; corrugated tubes B29L2023/18) · CPC title

• B29C48/345

  Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising · CPC title

• C08J2300/00

  Characterised by the use of unspecified polymers · CPC title