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公开(公告)号：GB2136004A
公开(公告)日：1984-09-12
申请号：GB8400806
申请日：1984-01-12
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , HARA MASANORI , MURAKAMI KOICHI
Abstract: A woody moulding is produced by adding a dibasic acid anhydride to a wood product such as wood meal, in the presence or absence of a catalyst such as sodium carbonate, to bond the dibasic acid anhydride to the hydroxyl groups of the wood product to form an esterified woody material, adding to the esterification product a compound having at least two epoxy groups in the molecule thereof, kneading the mixture obtained, and then heat and press moulding the kneaded mixture.
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公开(公告)号：GB2200917A
公开(公告)日：1988-08-17
申请号：GB8801561
申请日：1988-01-25
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MORI HIDEKI
IPC: C08J5/00 , B27K5/00 , C08F290/00 , C08F299/00 , C08F299/02 , C08H8/00 , C08L97/00 , C08L97/02 , B27N3/12
Abstract: The process for producing a plastic-like cured woody molding, which comprises applying a pressure necessary for plasticizing at least a woody component at temperature of from 120 DEG C. to 180 DEG C. to a composition comprising (A) an oligoesterified woody material obtained by alternately adding a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond to the hydroxy groups of a woody material and (B) an oligomer obtained from a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond with the addition of (C) a radical polymerization initiator to simultaneously perform the plasticization and crosslinking by the polymerization of the unsaturated double bonds. The plastic-like cured woody moldings thus obtained have dense and glossy surfaces and are particularly excellent in dimensional stability, mechanical properties and heat distortion temperature.
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公开(公告)号：DE3406237C2
公开(公告)日：1994-11-17
申请号：DE3406237
申请日：1984-02-21
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , HARA MASANORI , MURAKAMI KOICHI
Abstract: An industrially advantageous woody molding is produced by adding a dibasic acid anhydride to a woody material such as a wood meal in the presence or absence of a catalyst such as sodium carbonate, whereby the dibasic acid anhydride is bonded to the hydroxy group of the woody material to form an esterified woody material, adding thereto a compound having at least two epoxy groups in the molecule thereof, kneading well the mixture, and then heat and press molding the kneaded mixture at a temperature higher than 120 DEG C. and a pressure greater than 60 kg/cm2. The product thus obtained by the process of this invention has a smooth and lustrous surface, has good water resistance and dimensional stability, and also is excellent in mechanical strength and hardness.
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公开(公告)号：DE3723724C2
公开(公告)日：1994-02-03
申请号：DE3723724
申请日：1987-07-17
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MURAKAMI KOICHI
Abstract: A process of producing modified wood by impregnating dried wood with a mixed solution composed of phthalic anhydride as a polybasic acid anhydride and epichlorohydrin as an epoxy compound at a mol ratio of 1:1 to 1:30 by dipping the wood in the mixed solution, withdrawing the impregnated wood from the mixed solution, and heating the wood to a temperature of from 60 DEG C. to 180 DEG C. to simultaneously adding phthalic anhydride and epichlorohydrin to the hydroxyl groups of the wood. By the process of this invention, excellent dimensional stability and weather resistance can be imparted to the wood while retaining the properties specific to the wood.
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公开(公告)号：GB2136004B
公开(公告)日：1986-11-19
申请号：GB8400806
申请日：1984-01-12
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , HARA MASANORI , MURAKAMI KOICHI
Abstract: An industrially advantageous woody molding is produced by adding a dibasic acid anhydride to a woody material such as a wood meal in the presence or absence of a catalyst such as sodium carbonate, whereby the dibasic acid anhydride is bonded to the hydroxy group of the woody material to form an esterified woody material, adding thereto a compound having at least two epoxy groups in the molecule thereof, kneading well the mixture, and then heat and press molding the kneaded mixture at a temperature higher than 120 DEG C. and a pressure greater than 60 kg/cm2. The product thus obtained by the process of this invention has a smooth and lustrous surface, has good water resistance and dimensional stability, and also is excellent in mechanical strength and hardness.
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Patent Agency Ranking
公开(公告)号：DE3802075A1
公开(公告)日：1988-08-11
申请号：DE3802075
申请日：1988-01-25
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MORI HIDEKI
IPC: C08J5/00 , B27K5/00 , C08F290/00 , C08F299/00 , C08F299/02 , C08H8/00 , C08L97/00 , C08L97/02 , C08L1/08
Abstract: The process for producing a plastic-like cured woody molding, which comprises applying a pressure necessary for plasticizing at least a woody component at temperature of from 120 DEG C. to 180 DEG C. to a composition comprising (A) an oligoesterified woody material obtained by alternately adding a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond to the hydroxy groups of a woody material and (B) an oligomer obtained from a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond with the addition of (C) a radical polymerization initiator to simultaneously perform the plasticization and crosslinking by the polymerization of the unsaturated double bonds. The plastic-like cured woody moldings thus obtained have dense and glossy surfaces and are particularly excellent in dimensional stability, mechanical properties and heat distortion temperature.
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公开(公告)号：DE3406237A1
公开(公告)日：1984-08-23
申请号：DE3406237
申请日：1984-02-21
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , HARA MASANORI , MURAKAMI KOICHI
Abstract: An industrially advantageous woody molding is produced by adding a dibasic acid anhydride to a woody material such as a wood meal in the presence or absence of a catalyst such as sodium carbonate, whereby the dibasic acid anhydride is bonded to the hydroxy group of the woody material to form an esterified woody material, adding thereto a compound having at least two epoxy groups in the molecule thereof, kneading well the mixture, and then heat and press molding the kneaded mixture at a temperature higher than 120 DEG C. and a pressure greater than 60 kg/cm2. The product thus obtained by the process of this invention has a smooth and lustrous surface, has good water resistance and dimensional stability, and also is excellent in mechanical strength and hardness.
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公开(公告)号：DE3802075C2
公开(公告)日：1997-04-24
申请号：DE3802075
申请日：1988-01-25
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MORI HIDEKI
IPC: C08J5/00 , B27K5/00 , C08F290/00 , C08F299/00 , C08F299/02 , C08H8/00 , C08L97/00 , C08L97/02 , C08L1/08 , D21J3/00
Abstract: The process for producing a plastic-like cured woody molding, which comprises applying a pressure necessary for plasticizing at least a woody component at temperature of from 120 DEG C. to 180 DEG C. to a composition comprising (A) an oligoesterified woody material obtained by alternately adding a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond to the hydroxy groups of a woody material and (B) an oligomer obtained from a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond with the addition of (C) a radical polymerization initiator to simultaneously perform the plasticization and crosslinking by the polymerization of the unsaturated double bonds. The plastic-like cured woody moldings thus obtained have dense and glossy surfaces and are particularly excellent in dimensional stability, mechanical properties and heat distortion temperature.
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公开(公告)号：GB2200917B
公开(公告)日：1990-02-28
申请号：GB8801561
申请日：1988-01-25
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MORI HIDEKI
IPC: C08J5/00 , B27K5/00 , C08F290/00 , C08F299/00 , C08F299/02 , C08H8/00 , C08L97/00 , C08L97/02
Abstract: The process for producing a plastic-like cured woody molding, which comprises applying a pressure necessary for plasticizing at least a woody component at temperature of from 120 DEG C. to 180 DEG C. to a composition comprising (A) an oligoesterified woody material obtained by alternately adding a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond to the hydroxy groups of a woody material and (B) an oligomer obtained from a polybasic acid anhydride and a monoepoxy compound having unsaturated double bond with the addition of (C) a radical polymerization initiator to simultaneously perform the plasticization and crosslinking by the polymerization of the unsaturated double bonds. The plastic-like cured woody moldings thus obtained have dense and glossy surfaces and are particularly excellent in dimensional stability, mechanical properties and heat distortion temperature.
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公开(公告)号：DE3723724A1
公开(公告)日：1988-06-23
申请号：DE3723724
申请日：1987-07-17
Applicant: OKURA INDUSTRIAL CO LTD
Inventor： UEDA MINORU , MATSUDA HIDEAKI , MURAKAMI KOICHI
IPC: B27K5/00 , B27K3/15 , B27K3/50 , C09D163/00 , B27K3/34 , B27K3/08 , C09D15/00 , C09D3/58 , E04C2/10
Abstract: A process of producing modified wood by impregnating dried wood with a mixed solution composed of phthalic anhydride as a polybasic acid anhydride and epichlorohydrin as an epoxy compound at a mol ratio of 1:1 to 1:30 by dipping the wood in the mixed solution, withdrawing the impregnated wood from the mixed solution, and heating the wood to a temperature of from 60 DEG C. to 180 DEG C. to simultaneously adding phthalic anhydride and epichlorohydrin to the hydroxyl groups of the wood. By the process of this invention, excellent dimensional stability and weather resistance can be imparted to the wood while retaining the properties specific to the wood.
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