WO2000032872A1 - Papier de base pour plaque de platre et son procede de fabrication, et plaque de platre et son procede de fabrication - Google Patents

Papier de base pour plaque de platre et son procede de fabrication, et plaque de platre et son procede de fabrication Download PDF

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Publication number
WO2000032872A1
WO2000032872A1 PCT/JP1999/006696 JP9906696W WO0032872A1 WO 2000032872 A1 WO2000032872 A1 WO 2000032872A1 JP 9906696 W JP9906696 W JP 9906696W WO 0032872 A1 WO0032872 A1 WO 0032872A1
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WO
WIPO (PCT)
Prior art keywords
gypsum
monomer
base paper
gypsum board
paperboard
Prior art date
Application number
PCT/JP1999/006696
Other languages
English (en)
Japanese (ja)
Inventor
Kazushige Ishikawa
Shigeaki Nitta
Tsuyoshi Ikeda
Original Assignee
Yoshino Gypsum Co., Ltd.
Takasago Paper Co., Ltd.
Japan Pmc Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Gypsum Co., Ltd., Takasago Paper Co., Ltd., Japan Pmc Corporation filed Critical Yoshino Gypsum Co., Ltd.
Priority to AU14132/00A priority Critical patent/AU1413200A/en
Publication of WO2000032872A1 publication Critical patent/WO2000032872A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12

Definitions

  • Gypsum board is not only limited to ordinary houses and low- and middle-rise buildings, but also is a high-rise building that has been spreading rapidly in recent years, because it is inexpensive, in addition to its properties such as fire resistance, sound insulation, heat insulation, and workability. ⁇ Widely used as interior materials for high-rise buildings.
  • Such a gypsum port is usually kneaded with various additives such as calcined gypsum and an adhesive, and water, and a foam which has been foamed in advance to reduce the weight, using a mixer. It is poured between paperboard (read as Omotitagami) and backing paperboard (read as ⁇ itagami), then passed through a molding machine that determines the thickness and width.
  • U.S. Pat. No. 3,037,978 (Class 1556-41) states that the backing layer of paperboard in contact with the gypsum slurry is a synthetic latex of alkyl ketene dimer, wax and acrylonitrile series.
  • a method of sizing with an ammonium salt of a fatty acid or the like has been proposed, it cannot be said that the method is particularly satisfactory in terms of water resistance and dimensional stability.
  • Japanese Patent Publication No. 56-479794 proposes a method of treating paperboard with a silicone emulsion when producing base paper for gypsum board.
  • the silicone A high quality gypsum board can be obtained by applying a large amount of emulsion.
  • gypsum board is manufactured using gypsum base paper for which several days have passed after its application due to unexpected circumstances, gypsum board has high water resistance, so gypsum There is a problem that poor adhesion between the base paper for the board and the gypsum occurs.
  • the silicone emulsifier should be coated with a smaller amount of coating. It would be possible to produce a good gypsum board by applying Roussillon to paperboard.However, if the gypsum board is manufactured using the gypsum board base paper immediately after coating for unexpected reasons, The water in the gypsum slurry quickly penetrates into the gypsum board base paper because the base paper for paddles does not have sufficient water resistance, and as a result, the surface of the gypsum pod tends to wrinkle There is a problem.
  • the present invention overcomes the drawbacks of conventional gypsum board base paper, Base paper for gypsum board, which exhibits good properties, and its effect does not change with time, does not generate wrinkles when processed into gypsum board, has good adhesion to gypsum, and has good drying properties It is another object of the present invention to provide a gypsum pode having excellent quality using the gypsum base paper and a method for producing the same. Further, an object of the present invention is to provide a suitable high-water resistance immediately after the production by applying a cationic polymer compound to the back layer of the base paper for a gypsum board, so that the water resistance changes with time.
  • Gypsum pods can be manufactured without being affected by the length of stock period because there are few, and there is no wrinkle when processed into gypsum board, good adhesion to gypsum, and good drying Gypsum board base paper.
  • An object of the present invention is to improve the mechanical stability of a coating liquid comprising a cationic polymer compound, thereby reducing the generation of lees during operation and improving the base paper for gypsum port as described above.
  • the present invention provides a method for producing gypsum base paper that can be manufactured with a simple process and high production efficiency.
  • the hydrophobic monomer is at least one selected from the group consisting of an alkenyl group-containing aromatic compound, an alkenyl group-containing sulfonic acid alkyl ester, an alkenyl group-containing carboxylic acid mono- or dialkylamide, and an alkenyl group-containing alkyl ether;
  • the hydrophobic monomer is at least one selected from the group consisting of styrene derivatives, (meth) acrylates, dialkyl esters of unsaturated dicarboxylic acids, and N-alkyl (meth) acrylamides.
  • Gypsum board as described in 1),
  • the monomer having a tertiary amino group is at least one selected from the group consisting of tertiary aminoalkyl (meth) acrylates, tertiary alkyl (meth) acrylamides, and cyclic amines.
  • a hydrophobic polymer, a monomer having a tertiary amino group, and a cationic polymer compound containing a monomer composed of a Z or quaternary ammonium salt as a constituent monomer, are coated on the back surface of the paperboard.
  • a gypsum board comprising: a base paper for a gypsum board according to the above (1), which is laminated so that surfaces coated with the polymer compound are in contact with each other,
  • Two gypsum board base papers at least one of which is the gypsum pod base paper according to (1), are placed face to face, and a gypsum slurry is placed between the two gypsum board base papers.
  • a method for producing a gypsum pode characterized by casting and curing and drying the gypsum slurry.
  • the base paper for a gypsum board of the present invention is obtained by coating a hydrophobic polymer and a cationic polymer compound containing a monomer having a tertiary amino group and / or a monomer composed of a quaternary ammonium salt as a constituent monomer on the back surface of the paperboard. It is.
  • the water resistance of the gypsum board base paper can be improved by applying the cationic polymer compound, and the improved water resistance reduces the amount of water absorption on the coated surface (back side) of the obtained gypsum board base paper.
  • the technical effect of reducing the moisture stretching rate in the width direction of the gypsum board base paper is exhibited.
  • the mixed slurry of calcined gypsum and water is poured between a pair of base papers for gypsum board, and the cationic polymer compound is applied in the process of curing the poured mixed slurry.
  • the water in the mixed slurry is appropriately prevented from diffusing and moving into the pulp fiber in the base paper for the gypsum pod, that is, the movement speed of water into the pulp fiber is moderated.
  • the wet stretching speed of the gypsum board base paper follows the fluidity of the mixed slurry, which decreases as the setting of the mixed slurry proceeds.
  • Suitable hydrophobic monomers include, for example, alkenyl group-containing aromatic compounds, alkenyl group-containing carboxylic acid alkyl esters, alkenyl group-containing carboxylic acid mono- or dialkylamides, and alkenyl group-containing alkyl ethers.
  • Further preferred hydrophobic monomers include, for example, styrene derivatives such as styrene, polymethylstyrene, vinyltoluene, and divinylbenzene, and (meth) acrylates such as alkyl (meth) acrylate and cyclic alkyl (meth) acrylate.
  • Dialkyl esters of unsaturated dicarboxylic acids such as maleic acid and fumaric acid
  • alkyl esters of alkenyl groups such as vinyl esters such as vinyl acetate and vinyl propionate
  • Alkenyl group-containing alkyl ethers such as methyl vinyl / tele are exemplified.
  • one of the above-mentioned hydrophobic monomers can be used alone, or two or more of them can be used in combination.
  • the monomer having a tertiary amino group that provides these constituent monomers includes, for example, tertiary aminoalkyl such as (dialkyl) aminoalkyl (meth) acrylate and (dialkyl) aminohydroxylalkyl (meth) acrylate Tertiary alkyl (meth) acrylamides such as (meth) acrylates, (dialkyl) aminoalkyl (meth) acrylamides, and cyclic amines such as vinyl pyridine and vinyl imidazole; and quaternary ammonium.
  • the salt monomer include the above-mentioned quaternary monomer having a tertiary amino group.
  • Examples of the quaternizing agent used for obtaining the quaternized vinyl compound having a tertiary amino group include alkyl halides such as methyl chloride and ethyl chloride; Epoxy compounds such as aralkyl halides such as benzyl, epichlorohydrin, glycidyltrimethylammonium chloride, and 3-chloro-2-hydroxyammonium chloride, organic halides, and dimethyl sulfate and methyl sulfate And the like.
  • At least one monomer selected from the group of monomers having a tertiary amino group and the group of monomers composed of quaternary ammonium salts or at least one monomer selected from both groups
  • Two or more monomers are listed as raw materials for producing a cationic polymer compound.
  • the molar ratio of the hydrophobic monomer to the monomer having a tertiary amino group and / or the monomer comprising a quaternary ammonium salt during the production of the cationic polymer compound is usually 70:30 to 95: 5.
  • the amount of the monomer having the tertiary amino group and the monomer composed of Z or quaternary ammonium salt is less than 5 mol% or more than 30 mol%, the object of the present invention is attained.
  • the water resistance of the gypsum base paper manufactured using the obtained cationic polymer compound may be low.
  • the amount of the cationic polymer compound used must be increased, which may be uneconomical.
  • Other copolymerizable monomers can be used in combination with the hydrophobic monomer and the monomer having a tertiary amino group and the monomer comprising a Z or quaternary ammonium salt.
  • copolymerizable monomer examples include nonionic monomers such as acrylamide and methacrylamide.
  • one of the copolymerizable monomers can be used alone, or two or more thereof can be used in combination.
  • the amount of the copolymerizable monomer used is in the range of 20 mol% or less, preferably 10 to 0 mol%.
  • a monomer having a tertiary amino group as a constituent monomer and a monomer comprising Z or a quaternary ammonium salt as a constituent monomer in the polymer compound a monomer having a tertiary amino group as a monomer species to be polymerized or A method of performing any one of the above polymerizations using a monomer composed of a quaternary ammonium salt, or using a monomer having a tertiary amino group as a monomer species and a monomer composed of a quaternary ammonium salt, can be mentioned.
  • a method of using a monomer having a tertiary amino group as a monomer species to be polymerized, performing polymerization by any of the above polymerization methods, and reacting a quaternizing agent with the obtained copolymer can also be mentioned.
  • the radical polymerization catalyst used in the polymerization reaction include persulfates such as ammonium persulfate, potassium persulfate, and sodium persulfate; a redox polymerization catalyst using a combination of these persulfates and a reducing agent; And azo-based catalysts such as 2,2'-azobisisobutyronitrile and dimethyl 2,2'-azobis (2-methylpropionate).
  • a known chain transfer agent may be appropriately used in combination.
  • polymerization conditions for example, polymerization conditions referred to as polymerization at a temperature of 40 to 150, usually for 1 to 10 hours, and at a normal pressure or a pressurized state of 3 atm or less can be adopted.
  • Kraft pulp, Kraft pulp waste paper, newspaper waste paper, -magazine waste paper, cardboard waste paper, etc. are used for deinking as the pulp used in the production of paperboard used in the production of the base paper for the gypsum board of the present invention. Used paper and the like can be mentioned. These pulp are used by being appropriately blended according to the required paper quality of the paperboard.
  • the paperboard used in producing the gypsum board base paper of the present invention is not limited to those having a multi-layer structure with a surface layer, an inner layer, and a back layer each composed of one or more commonly used layers, It is also possible to use a paperboard consisting of a similar surface layer and a backing layer alone or a paperboard having a single-layer structure in which the main raw material is composed of one or more layers.
  • a rosin-based sizing agent for acidic papermaking an alkylketene dimer-based or alkenylsuccinic anhydride-based sizing agent for neutral papermaking, a rosin-based sizing agent for neutral papermaking, a petroleum resin-based sizing agent, etc.
  • Additives such as sizing agents, dry paper strength agents, wet paper strength agents, retention improvers, drainage improvers, defoamers, etc., are also required as needed to express the physical properties required for the base paper. May be used.
  • powdery or fibrous inorganic substances such as kaolin, talc, calcium carbonate, aluminum hydroxide, magnesium hydroxide, wollastonite, sepiolite, dosolite, etc. may be used in accordance with the physical properties required for gypsum base paper.
  • the paperboard itself or any or all of a plurality of layers constituting the paperboard may be appropriately contained.
  • These minerals are preferably contained in the paperboard in a proportion not exceeding 40%, in particular at most 35%.
  • the paperboard containing more than 40% of inorganic material has a relatively low pulp content, resulting in good dimensional stability of gypsum pod base paper. It does not cause the problem of wrinkling on the surface.
  • the present invention can solve the problem of wrinkling of paperboard having a high pulp content. Therefore, the content of pulp in the paperboard in the gypsum board base paper in the present invention is usually a ratio exceeding 50%, preferably a ratio exceeding 60%, and more preferably a ratio exceeding 65%. Percentage. The remainder is inorganic and other components.
  • the paperboard can be formed by a conventional method using a multilayer papermaking machine.
  • a suitable paperboard has a multilayer structure of a surface layer, an inner layer composed of one or more layers, and a back layer.
  • the surface layer and Z or the inner layer contain the inorganic substance without containing the inorganic substance on the adhesive surface of the back layer, and more preferable paperboard is composed of the surface layer and one or more layers.
  • It has a multi-layer structure of an inner layer and a back layer made of, and furthermore, the above-mentioned inorganic substance is contained only in the inner layer.
  • the content of the inorganic substance added internally is preferably at most 40% or less, more preferably at most 35% of the weight of the paperboard.
  • a cationic polymer compound can be applied to the back layer of the paperboard using a coating machine.
  • the coating machine include a size press, a film press, and a gate. It is possible to use one mouth, one night, one simsizer, one blade, one calendar, one barco, one knife knife, one air knife knife, and one curtain curtain. It can also be applied to the surface of the paperboard back layer by a spray coater.
  • a cationic polymer compound When applying a cationic polymer compound, oxidized starch, phosphated starch, enzyme-modified starch, starch such as cationized starch, celluloses such as carboxymethylcellulose, polyvinyl alcohols, polyacrylamides, and alginic acid
  • a water-soluble polymer such as soda can be mixed with the coating solution before use.
  • additives such as a surface sizing agent, an anti-slip agent, an antiseptic, an antiseptic, an antifoaming agent, a viscosity modifier, a dye, and a pigment may be used in combination.
  • the coating solution concentration when coating the cationic polymer compound is usually 0.1 to
  • the coating amount is usually 0.01 to 0 in terms of solid content. 3 g / m 2, and preferably 0. 0 2 ⁇ 0. 2 ⁇ ! 11 2. When it is in the above range, particularly suitable water resistance and permeability can be obtained, and the adhesion to gypsum and the drying property are good.
  • the gypsum board of the present invention has a gypsum base paper for the gypsum It is used for at least one of two gypsum base papers covering the back surface, and the surface of the base paper coated with the cationic polymer compound is bonded to the surface of the gypsum core.
  • the gypsum core constituting the gypsum board is not limited to a single layer, but also includes a structure in which a plurality of gypsum cores are laminated.
  • the gypsum pod base paper of the present invention When the gypsum pod base paper of the present invention is used as the gypsum board base paper in contact with the gypsum core, the adhesiveness between the gypsum core and the gypsum board base paper is improved, and wrinkles are not generated, and the quality is excellent. Not only can a gypsum pode be obtained, but also the gypsum pode has good drying properties, which allows efficient production of gypsum board.
  • at least one of the two gypsum pod base papers covering the front and back surfaces of the gypsum core can be used as the gypsum pod base paper of the present invention.
  • both sheets be the gypsum board base paper of the present invention.
  • the above-mentioned effect can be obtained more reliably.
  • another gypsum board base paper can be manufactured by the conventional manufacturing method using the gypsum board base paper.
  • the gypsum core is mainly gypsum. This gypsum is a hydrated hardened form of hemihydrate gypsum.
  • Hemihydrate gypsum is calcined gypsum obtained by calcining natural gypsum, chemical gypsum, flue gas desulfurization gypsum, and the like.
  • calcined gypsum There are two types of calcined gypsum, i3 type and ⁇ type.
  • Type 3 is obtained by calcination in the air, and cast is obtained by calcination in water (including in steam).
  • type 3 is usually used.
  • Various additives can be added to the gypsum core as needed. Examples of the additives include various water reducing agents, gypsum setting speed regulators, reinforcing fibers, various foaming agents, lightweight aggregates, and adhesion aids.
  • water reducing agent examples include melamine formalin condensate sulfonate, rig Known compounds such as ninsulfonate and sulfonic acid salt of -3-naphthylene lenformalin condensate can be mentioned.
  • gypsum setting speed regulator examples include known compounds such as aluminum sulfate, potassium sulfate, iron sulfate, and gypsum dihydrate.
  • the reinforcing fibers include known materials such as waste paper such as newspapers, virgin pulp, glass fibers that are inorganic fibers, rock wool, wollastonite, sepiolite, and the like.
  • Examples of the foaming agent include known compounds such as sodium alkyl sulfate, sodium alkyl benzene sulfonate, and polyoxetylene alkyl sulfate.
  • Examples of the lightweight aggregate include known substances such as perlite, vermiculite, shirasu balloon, and styrene foam.
  • Examples of the adhesion aid include known substances such as starch, poval, and CMC.
  • the gypsum board of the present invention can be manufactured as follows. The calcined gypsum, the above-mentioned various additives and water, and foam previously foamed for weight reduction are kneaded with a mixer.
  • the resulting gypsum slurry is poured between the upper and lower front and back paperboards.
  • the gypsum board base paper of the present invention is used for at least one of the two gypsum board base papers to be used.
  • it passes through a molding machine that determines the thickness, width, and the like. After the gypsum slurry has hardened, it is roughly cut and passed through a forced dryer. After drying, product cut into pieces.
  • the styrene / dimethylaminoethyl methacrylate (molar ratio) in the cationic polymer compound is 85Z15.
  • a solution prepared by diluting the cationic polymer compound (P-1) obtained in Synthesis Example 1 with water to a solid content of 0.35% was used as a coating solution.
  • the back layer of the front paperboard (the back layer of this paperboard contains only 1% of aluminum sulfate) was applied using a size press to obtain a base paper for a gypsum board for the example.
  • the solid coating amount of the cationic polymer compound (P-1) of this coated paper was 0.009 ⁇ -.
  • Coating was performed in the same manner as in Example 1 except that a 0.35% solution of the cationic polymer compound (P-2) obtained in Synthesis Example 2 was used to obtain a base paper for a gypsum board for the example. .
  • the coated amount of the solid content of the cationic polymer compound (P-2) of the coated paper was 0.09 g Zm 2 .
  • a gypsum pod was manufactured in the same manner as in Example 1 using the obtained gypsum board base paper.
  • Example 2 Coating was performed in the same manner as in Example 1 except that water was coated, to obtain a gypsum board base paper for a comparative example. Next, a gypsum board was manufactured in the same manner as in Example 1 using the obtained gypsum board base paper.
  • Example 3 Coating was performed in the same manner as in Example 1 except that a 0.1% solution of silicone emulsion (Polon MF 12 manufactured by Shin-Etsu Chemical Co., Ltd.) was used to obtain a base paper for a gypsum board for a comparative example.
  • the coated amount of the solid content of the silicone emulsion of this coated paper was 0.03 g / m 2 .
  • a gypsum port was manufactured in the same manner as in Example 1 using the obtained gypsum board base paper. (Comparative Example 3)
  • Coating was performed in the same manner as in Example 1 except that a 0.35% solution of the anionic polymer compound of Synthesis Example 3 was used, to obtain a gypsum board base paper for a comparative example.
  • the coated amount of the solid content of the anionic polymer compound (P-3) in the coated paper was 0.09 g Zm 2 .
  • a gypsum board was produced in the same manner as in Example 1 using the obtained gypsum board base paper.
  • the drying at the time of manufacturing the gypsum board in the above Examples 1 to Comparative Example 3 could be performed under the same conditions, and in Examples 1 and 2, the drying was as good as the others.
  • test papers obtained in the above Examples and Comparative Examples were evaluated for adhesiveness to gypsum when processed into gypsum pods immediately after coating.
  • Table 1 shows the evaluation results. After the test paper was allowed to stand in a constant temperature and humidity environment (20 ° C, 65% relative humidity) for 3 days, 7 days, and 14 days, the adhesion to gypsum when processed into gypsum board was examined. It was evaluated similarly. The results are shown in Table 2.
  • the gypsum board base paper of the examples has good water resistance immediately after coating, and no wrinkles are generated when the gypsum board base paper is processed into a gypsum pod. In addition, it was found that the adhesiveness with gypsum was good. -Based on the evaluation results in Table 2, the gypsum board base paper of the example is more water-resistant than Comparative Example 2. It was found that there was little change with time in the sample and that there was no change with time in the wrinkles and the adhesiveness to the gypsum when the gypsum board was manufactured. Also, from Table 3, it was found that the mechanical stability of the coating liquid comprising the cationic polymer compound of Example was clearly superior to that of Comparative Example 2.
  • the absence of the change with time, that is, the stability with time, is particularly important. This is because, when the gypsum board base paper according to the present invention is used, as in the case of the conventional gypsum paw base paper having a large change with time, the production of the gypsum board is started immediately after the paperboard is coated with the silicone emulsion. Gypsum board production without first having to do so, or, after a certain amount of time has elapsed since the application of the silicone emulsion to the paperboard, without the production restrictions. Gypsum pods can be manufactured using base paper. Industrial applicability
  • a cationic polymer compound to the back layer of the base paper for gypsum pods, appropriate water resistance can be imparted immediately after production, and further, there is little change over time in appropriate water resistance.
  • the gypsum pond can be provided for the production of gypsum pods regardless of the length of the stock period, has no wrinkles when processed into gypsum board, has good adhesion to gypsum, and has good drying properties.
  • the coating liquid which consists of a cationic polymer compound has the excellent mechanical stability, the generation
  • the surface treatment agent containing the cationic polymer compound has excellent mechanical stability, and the change with time of the cationic polymer compound applied to the gypsum board base paper is practically negligible. Therefore, it is possible to provide a method for producing a high-quality gypsum board regardless of the length of the stock period.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur un papier de base pour plaques de plâtre qui ne se chiffonne pas à l'étape de production de la plaque de plâtre et qui présente une bonne adhésion sur le plâtre ainsi qu'une bonne aptitude au séchage. L'invention porte également sur une plaque de plâtre contenant le papier de base. Le papier de base s'obtient en appliquant, sur une couche de fond d'un carton, un polymère cationique possédant des motifs structuraux extraits d'un monomère hydrophobe et d'un monomère possédant un groupe amino tertiaire et/ou un sel d'ammonium quaternaire.
PCT/JP1999/006696 1998-11-30 1999-11-30 Papier de base pour plaque de platre et son procede de fabrication, et plaque de platre et son procede de fabrication WO2000032872A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14132/00A AU1413200A (en) 1998-11-30 1999-11-30 Base paper for plasterboard, process for producing the same, and plasterboard and process for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33987898 1998-11-30
JP10/339878 1998-11-30

Publications (1)

Publication Number Publication Date
WO2000032872A1 true WO2000032872A1 (fr) 2000-06-08

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PCT/JP1999/006696 WO2000032872A1 (fr) 1998-11-30 1999-11-30 Papier de base pour plaque de platre et son procede de fabrication, et plaque de platre et son procede de fabrication

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006082487A (ja) * 2004-09-17 2006-03-30 Yoshino Gypsum Co Ltd 石膏ボードの製造方法
JP2015044745A (ja) * 2012-09-12 2015-03-12 吉野石膏株式会社 石膏組成物、石膏スラリー、石膏硬化体

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103917A1 (de) * 1981-02-05 1982-08-19 Bayer Ag, 5090 Leverkusen Kationisches leimungsmittel fuer papier und verfahren zu seiner herstellung
WO1982004014A1 (fr) * 1981-05-13 1982-11-25 States Gypsum Co United Papier ayant un materiau mineral de remplissage utilise dans la production de panneaux de cloison en gypse
EP0350834A2 (fr) * 1988-07-15 1990-01-17 Japan Pmc Corporation Agent de traitement de surface pour le papier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103917A1 (de) * 1981-02-05 1982-08-19 Bayer Ag, 5090 Leverkusen Kationisches leimungsmittel fuer papier und verfahren zu seiner herstellung
WO1982004014A1 (fr) * 1981-05-13 1982-11-25 States Gypsum Co United Papier ayant un materiau mineral de remplissage utilise dans la production de panneaux de cloison en gypse
EP0350834A2 (fr) * 1988-07-15 1990-01-17 Japan Pmc Corporation Agent de traitement de surface pour le papier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006082487A (ja) * 2004-09-17 2006-03-30 Yoshino Gypsum Co Ltd 石膏ボードの製造方法
JP2015044745A (ja) * 2012-09-12 2015-03-12 吉野石膏株式会社 石膏組成物、石膏スラリー、石膏硬化体

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Publication number Publication date
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