Polymers and plastics derived from animal proteins

US9567502B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9567502-B2
Application numberUS-201514805985-A
CountryUS
Kind codeB2
Filing dateJul 22, 2015
Priority dateMay 13, 2011
Publication dateFeb 14, 2017
Grant dateFeb 14, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention is directed to a method for preparing a polymer derived from an animal protein, such as in a feedstock derived from animal by-products. The method involves hydrolyzing proteins present in a feedstock to obtain hydrolyzed proteins, wherein hydrolysis is conducted under conditions sufficient to digest the proteins and destroy pathogens; extracting a protein fraction from the hydrolyzed proteins; and treating the protein fraction with a crosslinking reagent to form the polymer. The crosslinking reagents may include epoxies. The polymer may be further processed to form a thermoset plastic. The polymer may be used as an adhesive, or in the preparation of a natural fiber composite material.

First claim

Opening claim text (preview).

What is claimed is: 1. An adhesive polymer comprising hydrolyzed specified risk material (SRM) proteins including animal brain proteins, cross-linked by a cross-linking agent. 2. The polymer of claim 1 wherein the cross-linking agent comprises glutaraldehyde, glyoxal, resorcinol, benzaldehyde, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, N-hydroxysuccinimide, N,N-dicyclohexylcarbodiimide, or an epoxy. 3. The polymer of claim 1 wherein the hydrolyzed SRM proteins have an average molecular weight of less than about 100 kDa. 4. The polymer of claim 3 wherein the hydrolyzed SRM proteins have an average molecular weight of less than about 70 kDa. 5. The polymer of claim 4 wherein the hydrolyzed SRM proteins have an average molecular weight of less than about 35 kDa. 6. The polymer of claim 1 blended with a natural or synthetic rubber. 7. A thermoset plastic comprising a polymer comprising cross-linked hydrolyzed SRM proteins including animal brain proteins.

Assignees

Inventors

Classifications

  • derived from leather or skin {, e.g. gelatin} · CPC title

  • Compositions of proteins; Compositions of derivatives thereof (foodstuff preparations A23J3/00) · CPC title

  • by hydrolysis {, i.e. solvolysis in general} · CPC title

  • Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins · CPC title

  • Products derived from waste materials, e.g. horn, hoof or hair · CPC title

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What does patent US9567502B2 cover?
The invention is directed to a method for preparing a polymer derived from an animal protein, such as in a feedstock derived from animal by-products. The method involves hydrolyzing proteins present in a feedstock to obtain hydrolyzed proteins, wherein hydrolysis is conducted under conditions sufficient to digest the proteins and destroy pathogens; extracting a protein fraction from the hydroly…
Who is the assignee on this patent?
Bressler David Curtis, Choi Phillip, Univ Alberta
What technology area does this patent fall under?
Primary CPC classification C09J189/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Feb 14 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).