Complex amine/silane treated cellulosic materials
OwnerWilliam R. Lawtoninventor
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Abstract
Paper, cotton cloth, wood, fiberboard, and other cellulosic products are first treated with an organic base and then treated with a halosilane. This results in the formation of an amine/silane complex within the cellulose fibers as well as on the surface of the cellulosic product. This treatment imparts oil and water repellency, adhesive properties, and dimensional stability to cellulosic products.
Claims10
The method of modifying the physical and chemical properties of cellulosic products such as paper, cotton cloth, wood and fiberboard to impart oil and water repellency to such products, to control the degree of transparency and opacity of such products, to render such products adhesive, and to enhance the dimensional stability thereof,
- said method comprising:
- forming an amine/silane complex within the fibers of and as a coating for said cellulosic products, and including the steps of:
- impregnating a cellulosic material with an organic base to distribute said base throughout said material,
- treating the base-containing cellulosic material with a halosilane to effect a chemical reaction between said organic base and said halosilane to form, in situ, within fibers of said cellulosic material and on the surface thereof a reaction complex of said organic base and said halosilane,
- said complex constituting in integral element of said cellulosic material permanently modifying the properties thereof.
A cellulosic product containing as an integral, in-situ-formed element thereof distributed therethrough an amine/silane complex, said complex constituting a reaction product of an organic base and a halosilane.
Dependencies are inferred from the claim text.