Abstract: The present invention relates to a method for producing a lignocellulosic composite material, a lignocellulosic composite material that can be obtained with this method, and the use of said lignocellulosic composite material.

Abstract: A touch detection device comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by weight relative to the total weight of composite material. The resin impregnated makes it possible to render the touch interface stable irrespective of the temperature and moisture conditions with a view to use both outside and inside. Use of the touch detection device for a touchscreen.

Abstract: The invention concerns a process for treating lignocellulosic material, preferably wood, comprising the following successive steps: (1) extracting lignin by a fluid in supercritical or subcritical phase to extract 40 to 85% by weight % of the lignin of the initial material; (2) filling by a filling compound, preferably in the presence of a fluid in supercritical or subcritical phase; and (3) finishing, so as to obtain a composite material formed by a three-dimensional network of filling compound that is transformed and incorporated in a network of cellulose and lignin.

Abstract: A touch detection device comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by weight relative to the total weight of composite material. The resin impregnated makes it possible to render the touch interface stable irrespective of the temperature and moisture conditions with a view to use both outside and inside. Use of the touch detection device for a touchscreen.

Abstract: A touch detection device comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by weight relative to the total weight of composite material. The resin impregnated makes it possible to render the touch interface stable irrespective of the temperature and moisture conditions with a view to use both outside and inside. Use of the touch detection device for a touchscreen.

Abstract: A process for manufacturing an electrically conducting device from lignocellulosic material comprises the following steps: impregnating (S10) the lignocellulosic material with at least one filling compound so as to produce a composite substrate; and depositing (S12) at least one conducting layer on at least one surface of the composite substrate so as to produce an electrically conducting device. Use of an electrically conducting device so produced for example particularly as a touch interface.

Abstract: A touch detection device comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by weight relative to the total weight of composite material. The resin impregnated makes it possible to render the touch interface stable irrespective of the temperature and moisture conditions with a view to use both outside and inside. Use of the touch detection device for a touch screen.

Abstract: The invention relates to a process for treating a lignocellulosic material, e.g., wood, comprising the following steps: providing a lignocellulosic material; removing at least some but less than all lignin from the lignocellulosic material to yield a delignified structure; and densifying the delignified structure to yield the delignified, densified material, wherein the delignified, densified material is equal in size or is smaller in size relative to the lignocellulosic material provided; where densifying may include contacting said delignified structure, at least in part, with at least one fluid at a pressure greater than atmospheric pressure. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

Abstract: The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

Abstract: A part made from lignocellulosic material (10) is formed from a single sheet (11) of partially delignified lignocellulosic material impregnated with an impregnation polymer. The part (10) comprises at least one curved portion having a double curvature surface. The part made from lignocellulosic material is produced by a production method implementing a thermoforming step. Use in particular for producing wood veneer structures.

Abstract: A touch detection device comprises a touch interface (1) made of composite material comprising a lignocellulosic material and a resin, the lignocellulosic material being impregnated with the resin, the fraction of resin being between 30% and 80% by weight relative to the total weight of composite material. The resin impregnated makes it possible to render the touch interface stable irrespective of the temperature and moisture conditions with a view to use both outside and inside. Use of the touch detection device for a touchscreen.

Abstract: The invention concerns a process for treating lignocellulosic material, preferably wood, comprising the following successive steps: (1) extracting lignin by a fluid in supercritical or subcritical phase to extract 40 to 85% by weight % of the lignin of the initial material; (2) filling by a filling compound, preferably in the presence of a fluid in supercritical or subcritical phase; and (3) finishing, so as to obtain a composite material formed by a three-dimensional network of filling compound that is transformed and incorporated in a network of cellulose and lignin.

Abstract: The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

Abstract: The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

Abstract: The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.