Inventors:
Richard L. Buxton - Boise ID
Erik M. Parker - Boise ID
Assignee:
Weyerhaeuser Company - Federal Way WA
International Classification:
C08K 314
US Classification:
524788, 524425, 524590, 524310
Abstract:
A mixture, casting system and method for forming a polyurethane product. The mixture typically includes a slurry including an alcohol containing at least two hydroxyl groups, and calcium carbonate. Typically, the calcium carbonate is present in the slurry in a range of between about 40% and 70% by weight. The mixture also includes an isocyanate mixed into the slurry such that isocyanate forms between about 10% and 50% by weight of the resulting mixture, the remainder of the resulting mixture being slurry. The mixture also may include a chain extender, cross-linking agent, or polymerization catalyst.