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US 4,985,119 AGranted
Cellulose fiber-reinforced structure
AssigneeThe Procter & Gamble Cellulose Company
InventorsKenneth D. Vinson, Byron J. L. Huff
Life of this patent
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Abstract
A cellulose fiber-reinforced structure useful for building and construction made from a composition including a water-curable, inorganic binder capable of setting to form a matrix and pulped softwood fibrous material having enhanced levels of summerwood fibers.
Claims18
A process for making a cellulose-fiber-reinforced structure, said process comprising the steps of:
- a. mixing a water-curable inorganic binder with water and between about 4% and 15% pulped softwood fibrous material, based upon the total solids of said structure, wherein said fibrous material has a summerwood fiber number percentage at least the minimum summerwood fiber number percentage provided by the equations:
- SuW (minimum)=for C less than or equal to 30;
- and
- SuW (minimum=65, for C greater than 30;
- wherein SuW (minimum is minimum number percentage of summerwood fibers based upon the total number of fibers, and C is fibrous material coarseness index;
- and
- b. curing said mixture.
4 more elements
A cellulose-fiber-reinforced structure comprising:
- a. a matrix of a water-curable, inorganic binder;
- and
- b. between about 4% and about 15% of pulped softwood fibrous material, based upon the total weight of nonhydrated components of said structure, said fibrous material having a summerwood fiber number percentage of at least the minimum summerwood fiber percentage provided by the equations:
- SuW (minimum)=for C less than or equal to 30;
- and
- SuW (minimum)=65, for C greater than 30;
- wherein SuW (minimum) is number percentage of summerwood fibers based upon the total number of softwood fibers, and C is fibrous material coarseness index.
4 more elements
Dependencies are inferred from the claim text.