Process for impregnating cellulosic materials and products hereby obtained
OwnerJosef Puhringerinventor
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Abstract
The invention provides for a process for impregnating a cellulosic material, especially wood, to improve its resistance to moisture and to increase its dimensional stability, wherein the material is brought into contact with an agent comprising a silane of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are same or different and are selected from the group comprising: alkoxy with 1 to 6 carbon atoms, and R.sub.4 is equal to any of R.sub.1, R.sub.2 and R.sub.3 or selected from the group comprising: alkyl and cycloalkyl with 1 to 6 carbon atoms, aryl, aralkyl and organo-functional radicals, or with a hydrolysate or hydrolysate-condensate of such silane. The invention also extends to products prepared by such process.
Claims10
A process for impregnating wood, to improve its resistance to moisture and to increase its dimensional stability, comprising bringing the material into contact with an agent comprising a silane of the formula:
- ##STR7## wherein R.sub.1, R.sub.2 and R.sub.3 are same or different and are selected from the group consisting of alkoxy with 1 to 6 carbon atoms, and R.sub.4 is equal to any of R.sub.1, R.sub.2 and R.sub.3 or selected from the group consisting of alkyl and cycloalkyl with 1 to 6 carbon atoms, aryl, aralkyl and organo-functional radicals, in the presence of a polymerization catalyst.
A process for impregnating wood, to improve its resistance to moisture and increase its dimensional stability, consisting essentially of bringing the material into contact with an agent comprising a silane of the formula:
- ##STR8## wherein R.sub.1, R.sub.2, and R.sub.3 are same or different and are selected from the group consisting of alkoxy with 1 to 6 carbon atoms, and R.sub.4 is equal to any of R.sub.1, R.sub.2 and R.sub.3 or selected from the group consisting of alkyl and cycloalkyl with 1 to 6 carbon atoms, aryl, aralkyl and organo-functional radicals, in the presence of a polymerization catalyst.
Dependencies are inferred from the claim text.