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Durable thermosets from reducing sugars and primary polyamines
US9879138B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9879138-B2 |
| Application number | US-201113091309-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2011 |
| Priority date | Apr 22, 2010 |
| Publication date | Jan 30, 2018 |
| Grant date | Jan 30, 2018 |
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- Title
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Abstract
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The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.
First claim
Opening claim text (preview).
We claim: 1. An aqueous binder composition comprising one or more diprimary diamine, and one or more reducing sugar chosen from a reducing monosaccharide, a reducing disaccharide, a stereoisomer thereof, an optical isomer thereof, a hydroxy, halo, alkyl, alkoxy or carbonyl substituted reducing monosaccharide, a hydroxy, halo, alkyl, alkoxy or carbonyl substituted reducing disaccharide, a dehydrated reducing monosaccharide, and a dehydrated reducing disaccharide, wherein the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, wherein the one or more diprimary diamine is chosen from aliphatic primary diamines, aminoguanidine, aminoguanidine salts, alkylene diamines; cycloaliphatic primary diamines, and aromatic di-primary amines.
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Classifications
Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00 · CPC title
- C08L79/02Primary
Polyamines · CPC title
Polyamines · CPC title
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- What does patent US9879138B2 cover?
- The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fibe…
- Who is the assignee on this patent?
- Finch William, Lee Haksu, Rand Charles J, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification C08L79/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 30 2018 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).