公开(公告)号：JPH02273202A

公开(公告)日：1990-11-07

申请号：JP9288989

申请日：1989-04-14

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： MORI HIDEKI ,  MIZOMOTO MICHIHISA ,  UEDA MINORU ,  MATSUDA HIDEAKI

IPC: B27D1/04 ,  B27K5/00 ,  B27N3/00

Abstract: PURPOSE:To obtain a woody molded article having an excellent performance in dimensional stability, durability, and adhesive strength by making oligoesterified woody materials having an active hydroxyl group at the side chain be unified and integrated to each other through an isocyanate-polyurethane adhesive agent. CONSTITUTION:Oligoesterified woody materials having an active hydroxyl group are adhered to the side chains in which dibasic acid anhydride and epoxy composition is reacted to woody materials through isocyanate-polyurethane adhesive agent, whereby firmly adhesive integration is made by the chemical combination of the active hydroxyl group in the oligoesterified woody materials and the active isocyanate group in the isocyanate-polyurethane adhesive agent, as a result, woody molded articles are obtained, such as polywood, veneer laminated board, particle board, woody fibrous board, laminated lumber or the like. Such obtained woody molded articles have excellent dimensional stability and durability because they are performed oligoesterified treatment in its woody material.

公开(公告)号：JPH02145339A

公开(公告)日：1990-06-04

申请号：JP29951388

申请日：1988-11-29

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： UEDA MINORU ,  MATSUDA HIDEAKI ,  MURAKAMI KOICHI

IPC: B32B21/08 ,  B27K5/00 ,  B27N7/00 ,  B32B37/06 ,  C08F251/02 ,  C08F299/00

Abstract: PURPOSE:To enhance the surface strength, etc. of a woody decoration plate by scattering curable composition containing oligoesterified cellulose material having a polymerizable double bond and oligomer as a main materials on the surface of a wooden plate, and applying a predetermined pressure thereto at a high temperature. CONSTITUTION:A curable composition containing oligoesterified cellulose material having a polymerizable double bond, obtained by reacting dibasic acid anhydride and monoepoxy compound having polymerizable double bond with dried cellulose material, and oligomer having polymerizable double bond as a main materials is prepared. After the surface of a wooden plate material is coated with the curable composition, pressure necessary to at least partially plasticize the cellulose material component in the composition at a high temperature is applied, and crosslinked by polymerization of double bond simultaneously upon plasticizing. Further, the composition is adhered to the plate to be integrated to obtain a surface curable woody decoration plate.

公开(公告)号：JPH0234618A

公开(公告)日：1990-02-05

申请号：JP18279788

申请日：1988-07-23

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： UEDA MINORU ,  HARA MASANORI ,  KISHIGAMI KIYOSHI ,  MATSUDA HIDEAKI

IPC: C08F299/00 ,  C08F290/00 ,  C08F299/04 ,  C08G63/42 ,  C08G63/52 ,  C08L97/00 ,  C08L97/02

Abstract: PURPOSE:To obtain a molding excellent in dimensional stability, mechanical properties, heat distortion temperature, etc., by mixing a composition comprising a wooden material bonded to an oligoester having a polymerizable double bond and a polymerizable oligomer with an unsaturated polyester resin. CONSTITUTION:A mixture comprising 100 pts.wt. composition formed by mixing a wooden material (A) bonded to an oligoester having a polymerizable double bond (a wooden material wherein a polybasic acid anhydride such as maleic anhydride and a polymerizable epoxy compound such as allyl glycidyl ether are alternately added to the OH group of a wooden material component) with an oligomer (B) comprising a polybasic acid anhydride and a polymerizable monoepoxy compound in an A to B ratio of 50:50-90:10, 5-50 pts.wt. unsaturated polyester (C) and a radical polymerization initiator is simultaneously plasticized and crosslinked to obtain a plasticlike wooden molding.

公开(公告)号：JPS6032605A

公开(公告)日：1985-02-19

申请号：JP14113083

申请日：1983-08-03

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： UEDA MINORU ,  MATSUDA HIDEAKI ,  HARA MASANORI

IPC: B27N3/00 ,  B27K5/00 ,  B27N3/02 ,  B27N3/04 ,  B29C43/02 ,  B29K103/00 ,  B29L31/16 ,  C08L97/02

Abstract: PURPOSE:To obtain the titled molded item whose surfaces are tough and hard, and that is dense and excellent in heat resistance, wear proofness, dimensional stability, etc., by mixing a woody material such as wood flour or the like with a special compound containing acid anhydride groups, and molding the mixture under heat and pressure. CONSTITUTION:Trimellitic acid ester anhydride of formula I (wherein R1 represents a glycol residue) or pyromellitic acid ester anhydride (A) having more than one acid anhydride group of formula II [wherein R2 represents a (poly)alkylene glycol residue, or a polyhydric alcohol residue having 3 or 4 OH groups, and (n) is 1-3] is added to a woody material (B) comprising wood flour, wood chips or wood fibre, and they are intimately stirred. Then the mixture is molded under heat and pressure to obtain the intended item. It is preferable to mix the constituents (A) and (B) at or over the softening or melting point of the constituent (A). EFFECT:According to the composition of the mixture, the obtained item has a glossy plastic appearance.

公开(公告)号：JPS5823202B2

公开(公告)日：1983-05-13

申请号：JP11505377

申请日：1977-09-24

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： UEDA MINORU ,  SAEKI TAKU

IPC: B27K3/52

公开(公告)号：JPS545015A

公开(公告)日：1979-01-16

申请号：JP6915977

申请日：1977-06-10

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： HORIIE TSUNEO ,  UEDA MINORU ,  SAEKI TAKU

IPC: B32B21/06

公开(公告)号：JP2001113583A

公开(公告)日：2001-04-24

申请号：JP29629999

申请日：1999-10-19

Applicant: OKURA INDUSTRIAL CO LTD ,  OG CORP

Inventor： KOBAYASHI TOSHIO ,  MATSUMOTO HIROSHI ,  UEDA MINORU

IPC: B29C47/06 ,  B29C48/32 ,  B29C48/335 ,  B29K23/00 ,  B29L31/06 ,  C08L23/00 ,  C08L97/02

Abstract: PROBLEM TO BE SOLVED: To provide a round bar of a polyolefin resin which has a woody touch, can have functions such as a grain pattern, antibacterial properties, and mildewproofing properties, and is excellent in secondary processability. SOLUTION: In a round bar of a two-layer polyolefin resin having two-layer structure of an inner layer and an outer layer which is arranged to coat the inner layer and melt-integrated with the inner layer, the outer layer has a thickness of 0.5-10 mm and is made of a woody composite material C comprising 30-90 wt.% of a polyolefin resin A and 10-70 wt.% of a woody material B, and the inner layer is made of a composite material D comprising the polyolefin resin A and an inorganic filler and/or an organic filler.

公开(公告)号：JP2001072817A

公开(公告)日：2001-03-21

申请号：JP2000190930

申请日：2000-06-26

Applicant: OKURA INDUSTRIAL CO LTD ,  MITSUI DU PONT POLYCHEMICAL

Inventor： YAMAGUCHI TOMONORI ,  MATSUMOTO HIROSHI ,  UEDA MINORU ,  TATENO HITOSHI ,  HASHIMOTO HIDENORI

IPC: C08J5/00 ,  B32B27/20 ,  B32B27/32 ,  C08L23/00 ,  C08L23/26 ,  C08L97/02

Abstract: PROBLEM TO BE SOLVED: To obtain a polyolefin-based resin composition capable of compounding woody materials at a high portion and excellent in molding processability and to obtain a molded product thereof. SOLUTION: This composition is obtained by comprising woody materials (A), an ethylene/unsaturated carboxylic acid-copolymer ionomer wherein all or a part of carboxyl groups in the molecule are neutralized with metal ions (B), and a polyolefin-based resin (except the ethylene/unsaturated carboxylic acid-copolymer ionomer) (C) and is characterized by that the weight ratio of B/C is (5:95) to (100:0) and the other subject molded product is obtained by molding the composition.

公开(公告)号：JP2000103913A

公开(公告)日：2000-04-11

申请号：JP27280798

申请日：1998-09-28

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： KOYAMA KEIJI ,  MURAKAMI KOICHI ,  UEDA MINORU ,  MATSUDA HIDEAKI

IPC: C08K5/21 ,  C08L23/02 ,  C08L97/02

Abstract: PROBLEM TO BE SOLVED: To provide a polyolefin-based resin composition hardly discoloring even when exposed to UV light, or the like, and comprising a polyolefin and an esterified wood-based material. SOLUTION: A polyolefin-based resin composition comprises (A) a polyolefin, (B) an esterified wood-based material obtained by addition-esterifying a polybasic acid anhydride to hydroxyl groups in the wood-like material, and (C) urea. The urea C is added in an amount of 0.05-10 pts.wt. per 100 pts.wt. of the total amount of the components A and B.

公开(公告)号：JPH11158294A

公开(公告)日：1999-06-15

申请号：JP32587897

申请日：1997-11-27

Applicant: OKURA INDUSTRIAL CO LTD

Inventor： YAMAGUCHI TOMONORI ,  MATSUMOTO HIROSHI ,  UEDA MINORU ,  MATSUDA HIDEAKI

IPC: C08J5/00 ,  C08K5/09 ,  C08L23/00 ,  C08L97/00

Abstract: PROBLEM TO BE SOLVED: To obtain a polyolefin resin compsn. which has a good moldability and can be molded without causing scorching, burns or the like, by incorporating a specified amt. of a basic metal soap into a polyolefine resin compsn. contg. a lignocellulosic or a cellulosic substance. SOLUTION: The objective polyolefin resin compsn. is prepd. by mixing (A) a polyolefin resin, (B) a lignocellulosic or a cellulosic substance in an amt. of 20 wt.% or higher of the compsn., 0.005-1 wt.% (based on the sum of A and B, the same applies hereunder) org. peroxide (e.g. benzoyl peroxide), 0.1-10 wt.% modified polyolefine, 0.1-20 wt.% polybasic acid anhydride (e.g. maleic anhydride), and a basic metal soap (e.g. zinc stearate) in an amt. of 0.005-5 wt.% of the compsn. at 150-260 deg.C with an extruder or the like. Resin A is pref. a mixture of polypropylene having a melt flow rate of 0.1-200 g/10 min and a polyethylene having a melt flow rate of 0.01-200 g/10 min in a wt. ratio of (40/60)-(90/10).