ACIDIC POLYMER BLENDS FOR POWDER GRANULATION
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Aug 15, 2013
filing date -
Aug 16, 2012
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Abandoned
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Abstract
A binder formulation is provided including water, a first polymer, and a second polymer. The first polymer is preferred to be a poly(carboxylic acid) and the second polymer is preferred to be a co-polymer containing both carboxylic acid and hydrophobic monomers. The first polymer can be polymers such as poly(acrylic acid), poly(methacrylic acid), poly(maleic acid), or poly(itaconic) acid. The second polymer is preferred to be an alternating copolymer of a monomer of a carboxylic acid and a hydrophobic monomer such as styrene, isobutylene, or n-alkenes. These binder formulations are particularly useful in making granulated powders in powder metallurgy and additive manufacturing.
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