Formaldehyde-free protein-containing binders for spunbond products
AssigneeJohns Manville
InventorsMingfu Zhang, Jawed Asrar, Zhihua Guo
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Abstract
One-part binder compositions are described that may include a protein and a crosslinking combination. The crosslinking combination may include at least a first crosslinking compound and a second crosslinking compound. The first and second crosslinking compounds are individually crosslinkable with each other and with the protein. Examples of the protein include soy protein. Fiber products and methods of making the fiber products are also described. The fiber products may include organic fibers, inorganic fibers, or both, in a cured thermoset binder based on solutions of the one-part binder compositions.
Claims22
A spunbond product comprising:
- a cured thermoset binder including:
- a soy protein;
- and
- a crosslinking combination comprising a first crosslinking compound and a second crosslinking compound, wherein the first and second crosslinking compounds are individually crosslinkable with each other and with the soy protein.
A spunbond product comprising:
- a cured thermoset binder including:
- a soy protein;
- and
- a crosslinking combination comprising a first crosslinking compound and a second crosslinking compound, wherein the first and second crosslinking compounds are individually crosslinkable with each other and with the soy protein;
- wherein the cured thermoset binder has a tear strength between about 20 and about 50% greater than a standard latex binder.
Dependencies are inferred from the claim text.