11-07-2013 дата публикации
Номер: US20130174758A1
A binder comprising a polymeric binder comprising the products of a carbohydrate reactant and organic acid is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Fibrous products comprising fibers in contact with a carbohydrate reactant and an organic acid are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate based binder using an organic acid. 1. A binder comprising a polymeric product of a carbohydrate reactant , an amine base , and an organic acid , wherein{'sub': m', 'n, 'the organic acid is R—O(═O)(—OH),'}Q is phosphorus (P), m is 1, and n is 2 or Q is sulfur (S), m is 2, and n is 1, andR is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heteroalkyl, heteroalkenyl, cycloheteroalkyl, cycloheteroalkenyl, aryl, or arylalkyl, each of which is optionally substituted.2. The binder of claim 1 , in which the organic acid is characterized by at least one of the following embodiments:a) wherein R is alkyl, cycloalkyl, heteroalkyl, cycloheteroalkyl, alkenyl, cycloalkenyl, or aryl each of which is optionally substituted;b) wherein R is selected from the group consisting of phenyl, benzyl, a tolyl, a xylyl, and a naphthalenyl, each of which is optionally substituted;c) wherein R is 4-methylphenyl;d) wherein R is selected from the group consisting of 2-aminophenyl, 3-aminophenyl, 2-methylphenyl, 3-methylphenyl, 2,3-dimethylphenyl, and 2,4-dimethylphenyl;{'sub': 1', '24, 'e) wherein R is an alkyl selected from the group consisting of C-C, each of which is optionally substituted;'}{'sub': 1', '8, 'f) wherein R is an alkyl from the group consisting of C-C, each of which is optionally substituted;'}g) wherein R is selected from the group consisting of methyl, ethyl, 2-amino-ethyl, piperidinyl, and trifluoromethyl; andh) wherein R is selected from the group consisting of 2-sulfophenyl, 3- ...
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