# US 9,518,163 B2 · Reinforced polymer foams, articles and coatings prepared therefrom and methods of making the same

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- Number: US 9,518,163 B2
- Document ID: US9518163B2
- Status: Granted
- Kind: B2
- Application number: 12/471,633
- Filed: 2009-05-26
- Published: 2009-11-26
- Granted: 2016-12-13
- Earliest claimed: 2008-05-26
- Assignees: Semmes, Inc.
- Applicants: Edmund Bernard Semmes
- Inventors: Edmund Bernard Semmes
- Web page: https://patentgrep.com/patent/US9518163B2

## CPC

- C08J 9/0061: {characterized by the use of several polymeric components}
- C08G 18/14: {Manufacture of cellular products}
- C08G 18/7664: {containing alkylene polyphenyl groups}
- C08J 5/046: {with synthetic macromolecular fibrous material}
- C08J 9/0071: {Nanosized fillers, i.e. having at least one dimension below 100 nanometers}
- C08J 9/0076: {Nanofibres}
- C08J 9/0085: {Use of fibrous compounding ingredients (C08J9/0076 takes precedence)}
- C08G 2101/00: Manufacture of cellular products
- C08G 2110/0025: rigid
- C08G 2110/0083: prepared using water as the sole blowing agent
- C08J 2375/04: Polyurethanes
- C08J 2477/00: Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J 2477/10: Polyamides derived from aromatically bound amino and carboxyl groups of amino carboxylic acids or of polyamines and polycarboxylic acids
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

A cellular foamed article is provided, including a polymeric foam material and a micro- or nano-sized reinforcement material embedded in the foam material. Also, methods of making a reinforced cellular foamed articles are provided, including preparing a dispersion comprising a reinforcement material and a polymer precursor; processing the reinforcement material so that it has a volume average length ranging from about average cross sectional diameter of from about 1 to about 500 nm and a volume average length of from about 10 nm to about 10 μm; reacting the polymer precursor to form a foamable polymer; and foaming the foamable polymer.

## Claims

### Claim 1

A method of making a reinforced cellular foamed article, comprising the steps of:
forming a mixture of a precursor for a foamable polymer and a precursor for forming a polymeric reinforcement fiber material;
forming the polymeric reinforcement fiber material in situ in the presence of the precursor for the foamable polymer, thereby preparing a dispersion comprising the polymeric reinforcement fiber material and the precursor for the foamable polymer;
processing the polymeric reinforcement fiber material in the presence of the precursor for the foamable polymer so that the polymeric reinforcement fiber material has an average cross sectional diameter of from about 1 to about 500 nm and a volume average length of from about 10 nm to about 10 μm;
reacting the precursor for the foamable polymer to form a foamable polymer; and
foaming the foamable polymer.