B - Operations – Transporting – 27 – K
Patent
B - Operations, Transporting
27
K
B27K 3/08 (2006.01) B27K 3/10 (2006.01) C04B 41/45 (2006.01)
Patent
CA 2113661
A method for injecting a treating liquid into a wood or stone material. The liquid is injected in an initial pressure-applying/injecting step in which the wood or stone material is immersed at ambient temperature in a treating liquid under an initial liquid pressure of 1 to 10 kg/cm2, and maintained at this pressure for a period of time. Subsequently, the pressure is increased to a final pressure having a maximum value of 50 kg/cm2. Where wood is being treated, the pressure is raised in a plurality of steps of 5 to 10 kg/cm2 each, followed by a defined holding period. Where stone is being treated, the pressure is increased in a single step. Finally, the treated material is depressurized over a period of at least 20 minutes.
Marks & Clerk
Sumitomo Corporation
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