Microlayer coextrusion of optical end products
US-9643368-B2 · May 9, 2017 · US
Extrudable oriented polymer composites
US11420376B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11420376-B2 |
| Application number | US-202016801975-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2020 |
| Priority date | Feb 20, 2013 |
| Publication date | Aug 23, 2022 |
| Grant date | Aug 23, 2022 |
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- Title
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Abstract
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A novel tubular or profile shapes of co-extruded multilayer polymers. These materials contain tens to thousands of layers of milli-, micro- to nano-polymer layers. These new shapes contain contiguous layers of milli- to nano-polymer layers in three dimensions and these contiguous layers may be twisted or turned to further expand the potential microlayer geometries.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for creating multilayered products comprising merging multiple streams along an axis of extrusion using a microlayer extrusion process with a rotating die assembly that rotates around the axis of extrusion to form contiguous layers without weld lines of a tubular or annular microlayered composite that is twisted around the axis of extrusion, wherein one or more layers of said tubular or annular microlayered composite contain fibers, flakes or particles and the fibers, flakes or particles are oriented by the microlayer extrusion process and the shear forces of the rotating die assembly. 2. The method according to claim 1 , wherein said tubular or annular microlayered composite contains fibers. 3. The method according to claim 1 , wherein said tubular or annular microlayered composite contains wood fibers or particles. 4. The method according to claim 1 , wherein said tubular or annular microlayered composite contains clay particles. 5. The method according to claim 1 , wherein said tubular or annular microlayered composite contains nanocellulose fibers or particles.
Assignees
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Classifications
for layer multiplication (extrusion of multi-component articles B29C48/16) · CPC title
Tubular articles, e.g. hoses, pipes · CPC title
Layered products · CPC title
Carbon fibres, e.g. graphite fibres · CPC title
Rod-shaped · CPC title
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- What does patent US11420376B2 cover?
- A novel tubular or profile shapes of co-extruded multilayer polymers. These materials contain tens to thousands of layers of milli-, micro- to nano-polymer layers. These new shapes contain contiguous layers of milli- to nano-polymer layers in three dimensions and these contiguous layers may be twisted or turned to further expand the potential microlayer geometries.
- Who is the assignee on this patent?
- Guill Tool & Eng Co Inc
- What technology area does this patent fall under?
- Primary CPC classification B29C48/21. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 23 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).