Patent ID: 11926569
Assignee: SIERRACRETE LLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A composite cellulosic product, comprising:
an at least partially cured binder and 0.5 wt % to 5 wt % of a plurality of cellulosic substrates, based on a total weight of the composite cellulosic product, wherein the plurality of cellulosic substrates comprises cellulosic substrates derived from a lignin-containing material subjected to a lignin extraction process, and wherein, prior to curing, the binder comprises a mixture formed by combining:
magnesium oxide,
water, and
magnesium chloride, wherein a weight ratio of the magnesium oxide to the magnesium chloride in the binder is at least 2.2:1 to about 8.5:1, and wherein a weight ratio of the water to the magnesium chloride in the binder is about 1.5:1 to about 4.5:1.