A process of moulding a product (and a product thus formed) wherein particulate ligno-cellulose such as shredded paper, flour, Portland cement, a small amount of caustic soda, and water are mixed together, placed in a mould, and subjected to both pressure and heat until set, and the moulded product is...http://www.google.com/patents/US4497662?utm_source=gb-gplus-sharePatent US4497662 - Moulded product
