Durable thermosets from reducing sugars and primary polyamines

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United States of America Patent

PATENT NO 9879138
SERIAL NO

13091309

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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.

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Patent Owner(s)

Patent OwnerAddress
DOW GLOBAL TECHNOLOGIES LLC2211 H H DOW WAY MIDLAND MI 48674

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finch, William Ambler, US 4 71
Lee, Haksu Ambler, US 6 99
Rand, Charles J Philadelphia, US 22 200
Sammler, Robert L Midland, US 22 177
Timmers, Frances J Midland, US 1 61
Weinstein, Barry Dresher, US 82 1597

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