摘要:
Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise), and an extruded pregelatinized starch.
摘要:
Disclosed are product (e.g., panels), slurry, and methods relating to at least one extruded pregelatinized starch formed from a wet starch having a water content less than about 25%, wherein the starch has a cold water solubility greater than about 30% when measured at 25°C and a cold water viscosity of a 10% slurry of the starch in water when measured at 25°C and at a shear rate of 100 s-1 for 1 min is from about 120 centipose to about 300 centipose..
摘要:
Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board.