JPH09157627A - Water-soluble tacky adhesive agent composition - Google Patents

Water-soluble tacky adhesive agent composition

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Publication number
JPH09157627A
JPH09157627A JP32434995A JP32434995A JPH09157627A JP H09157627 A JPH09157627 A JP H09157627A JP 32434995 A JP32434995 A JP 32434995A JP 32434995 A JP32434995 A JP 32434995A JP H09157627 A JPH09157627 A JP H09157627A
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water
soluble
tacky
wt
adhesive
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JP32434995A
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Japanese (ja)
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Mitsuru Ozasa
満 小笹
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Sekisui Chem Co Ltd
積水化学工業株式会社
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Abstract

PROBLEM TO BE SOLVED: To improve recovering properties of especially paper or a corrugated board which is an adherend in relation to a water-soluble tacky adhesive agent composition.
SOLUTION: This water tacky adhesive agent composition is obtained by blending (a) 100 pts.wt. polyvinyl alcohol having 70-100% saponification degree with (b) 10-160 pts.wt. at least one water-soluble plasticizer selected from the group consisting of a saccharide, an alkanolamine and a polyether polyol and (c) 100-500 pts.wt. polyethylenimine.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は水溶性粘着剤組成物に関するもので、特に、被着体である紙、ダンボールの回収性を向上させることを目的とする。 The present invention relates not relate soluble pressure-sensitive adhesive composition, in particular, it aims to improve the paper as an adherend, a collection of cardboard.

【0002】 [0002]

【従来の技術】使用済みの紙、ダンボールを回収する場合、包装テープ類が貼り付けられたままの状態で、そのまま裁断して、水に分散させ、繊維をほぐして、パルプ化し、再度、ダンボールなどに加工される。 BACKGROUND ART spent paper, when the recovery of cardboard, in a state where packaging tapes were pasted and cut as it is dispersed in water, to loosen the fibers, pulping, again, cardboard It is processed into such. 紙、ダンボールの包装に使用する粘着テープは、ゴム系やアクリル系の粘着剤が使用され、実用上十分な粘着強度を持っているが、紙製品の再生工程で、粘着剤が水に溶解しない為、テープと共に異物となり、配管を詰まらせたり、回収紙製品に汚れを作ったりする問題があった。 Adhesive tape used paper, packaging cardboard, rubber or acrylic adhesive is used, it has practically sufficient adhesive strength in paper products regeneration step, not adhesive dissolved in water Therefore, become a foreign matter together with tape, or clog the piping, there has been a problem for or make a dirt in the recovery paper products.

【0003】かかる問題を解決する為には、適度に水に溶解する粘着剤が要求される。 [0003] In order to solve such a problem, adhesive moderately soluble in water is required. 例えば、特公昭50─3 For example, JP-B-50─3
4578号公報には、アルキルアクリレートとカルボキシル基を有するビニルモノマーとの共重合体をアルカリ塩にして、親水性となし、これにポリエーテルポリオール、多価アルコール、ポリエポキシドなどの水溶性可塑剤が配合されている水溶性粘着剤が開示されている。 The 4578 discloses a copolymer of a vinyl monomer having an alkyl acrylate and a carboxyl group and in the alkali salt, hydrophilic and without which the polyether polyol, a polyhydric alcohol, a water soluble plasticizer such as polyepoxide formulation water-soluble adhesive that is are disclosed.
又、特公昭52─32768号公報は、ポリエチレンイミンと澱粉系高分子化合物とからなる水溶性粘着剤が提案されている。 Further, JP-B-52─32768 water-soluble adhesive consisting of polyethyleneimine and starch-based polymer compound have been proposed.

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、特公昭50─34578号公報に開示された水溶性粘着剤は、 [SUMMARY OF THE INVENTION However, water-soluble adhesives disclosed in JP-B 50─34578 is
クラフトテープに使用すると、該水溶性粘着剤に配合された水溶性可塑剤が、時間の経過と共に、徐々に紙基材に移行して、粘着剤の配合組成を変化させる為、最初に設計した粘着物性が維持できなくなり、実際の粘着力が低下してしまう欠陥があった。 When used in craft tape, water-soluble adhesive water-soluble plasticizer formulated in the, over time, gradually shifts to the paper substrate, for changing the composition of the adhesive was designed initially adhesive physical properties can not be maintained, the actual adhesive force was defective decrease.

【0005】又、特公昭52─32768号公報に開示された水溶性粘着剤は、経時の粘着力の安定性は良いが、強固な凝集力のある成分を持たない為に、澱粉系高分子の比率が少ないと、粘着力とタックとのバランスが取り難く、澱粉系高分子の比率が多いと、粘着力とタックが共に低下して、テープを被着体に貼り付けても、直ぐに外れる。 [0005] Also, in order soluble adhesives disclosed in JP-B 52─32768 is a good stability over time of the adhesive strength, without a component with a strong cohesive force, starch-based polymers When the small proportion, difficult to balance between the adhesive force and tack, when there are many ratios of starch-based polymer, and adhesion and tack decreases both be taped to an adherend, disengaged immediately . さらに、冬場のような湿度が低い条件では、粘着剤の含水率が自然に低下して、粘着力が低下する問題点があった。 Further, the humidity is low conditions such as winter, the water content of the adhesive is reduced naturally, adhesive strength was a problem to decrease.

【0006】本発明は、上記の如き従来の問題点を解消し、テープの粘着力が湿度条件に影響を受けることなく良好で、経時の安定性が良く、且つ、紙の回収・再生工程に於いて、粘着剤が凝集せず、完全に水に溶解する水溶性粘着剤組成物を提供することを目的としてなされたものである。 [0006] The present invention is to solve the conventional problems such as above, good without adhesion of the tape are affected by humidity condition, good stability over time it is, and, to the recovery and regeneration steps of the paper in it, the adhesive is not aggregated, has been made for the purpose of fully providing a water-soluble pressure-sensitive adhesive composition that is soluble in water.

【0007】 [0007]

【課題を解決するための手段】本発明の水溶性粘着剤組成物は、(a)鹸化度が70〜100%のポリビニルアルコール100重量部に対し、(b)糖、アルカノールアミン、ポリエーテルポリオールからなる群より選ばれる少なくとも1種の水溶性可塑剤10〜160重量部と、(c)ポリエチレンイミン100〜500重量部とが配合されてなるものである。 Water-soluble pressure-sensitive adhesive composition SUMMARY OF THE INVENTION The present invention is, (a) to a degree of saponification of 100 parts by weight 70% to 100% of the polyvinyl alcohol, (b) sugars, alkanolamines, polyether polyols and at least one water-soluble plasticizer 10 to 160 parts by weight selected from the group consisting of are those formed by blending the (c) a polyethyleneimine 100-500 parts by weight.

【0008】本発明に使用されるポリビニルアルコール(a)は、水溶性粘着剤に適切な塗膜形成能力を持たせて、凝集力を与える役目をし、完全鹸化物、部分鹸化物いずれでも良いが、水に対する適切な溶解性を得るために、鹸化度が70〜100%の範囲のものが好ましい。 [0008] Polyvinyl alcohol used in the present invention (a) is made to have a suitable film-forming ability in a water-soluble adhesive, and serves to impart cohesive strength, completely saponified, it may be either partially saponified but in order to obtain adequate solubility in water, degree of saponification is preferably in the range of 70% to 100%.
鹸化度が70%以下では水に対する溶解性が不足する。 Degree of saponification is insufficient solubility in water at 70% or less.

【0009】ポリビニルアルコールの重合度が低くなると、水溶性粘着剤組成物の凝集力が低下し、充分な保持力が得られない。 [0009] The polymerization degree of polyvinyl alcohol is low, the cohesive force is lowered in water-soluble pressure-sensitive adhesive composition, sufficient holding force can not be obtained. ポリビニルアルコールの重合度は、パラメーターとして、ポリビニルアルコールの4重量%水溶液の20℃に於ける粘度が利用され、好ましくは5万cps以上、さらに、好ましくは20万cps以上である。 The polymerization degree of the polyvinyl alcohol, as a parameter, in viscosity 20 ° C. for 4 wt% aqueous solution of polyvinyl alcohol is utilized, preferably 50,000 cps or more, more preferably 200,000 cps or more.

【0010】水溶性可塑剤(b)は水溶性粘着剤の可塑性と粘着力とを調整する為に配合する。 [0010] water-soluble plasticizer (b) is formulated in order to adjust the plasticity and adhesion of the water-soluble adhesive. 添加量はポリビニルアルコール100重量部に対し、10〜160重量部であり、好ましくは、20〜100重量部である。 The addition amount relative to 100 parts by weight of polyvinyl alcohol, a 10 to 160 parts by weight, preferably, 20 to 100 parts by weight. 添加量が10重量部より少ないと、ポリビニルアルコールが可塑化されずに、水溶性粘着剤の粘着力が低くなる。 If the amount is less than 10 parts by weight, polyvinyl alcohol without being plasticized, adhesive strength of the water-soluble adhesive is lowered.
添加量が160重量部を越えると、水溶性粘着剤の凝集力が低下して、テープの保持力が悪くなる。 If the amount exceeds 160 parts by weight, and cohesive strength of the water-soluble adhesive is lowered, holding power of the tape is poor.

【0011】具体的な水溶性可塑剤としては、例えば、 [0011] As specific water-soluble plasticizers, e.g.,
ソルビトール、マルチトールなどの糖、トリエタノールアミン、トリプロパノールアミンなどのアルカノールアミン、ポリエチレングリコールなどのポリエーテルポリオールが挙げられ、これらの群から選ばれる少なくとも1種が使用され、これは単独で使用されても良いし、これらが併用されても良い。 Sorbitol, sugars such as maltitol, triethanolamine, alkanolamines such tripropanolamine, include polyether polyols such as polyethylene glycol, at least one use selected from these groups, which are used alone also may be, it may be they are used in combination. 低湿度条件での、粘着力を確保するには、糖類、特に、ソルビトールが保湿効果が優れている点で好ましいが、これに限定されるものではない。 To ensure the low-humidity conditions, the adhesive strength, sugars, in particular, is preferable in that the sorbitol has excellent moisturizing effect, but is not limited thereto.

【0012】ポリエチレンイミン(c)はエチレンイミンのホモポリマーを意味し、ポリビニルアルコールと良好に相溶して、水溶性粘着剤に強固な粘着力を付与する。 [0012] Polyethyleneimine (c) means a homopolymer of ethyleneimine, in good compatible with polyvinyl alcohol, impart strong adhesion to water-soluble adhesive. 分子量は1000〜20万の範囲が適当で、好ましくは、5〜10万が良い。 The molecular weight suitably in the range of from 1,000 to 200,000, preferably 5 to 10 thousands good. 分子量が1000より小さいと、水溶性粘着剤の凝集力が低下し、20万を越えると、水溶性粘着剤の粘着性が低下する。 And the molecular weight is smaller than 1000, the cohesive force of the water-soluble adhesive is lowered, it exceeds 200,000, adhesiveness of the water-soluble adhesive is lowered. 添加量はポリビニルアルコール100重量部に対し、100〜500重量部であり、好ましくは、200〜350重量部である。 The addition amount relative to 100 parts by weight of the polyvinyl alcohol is 100 to 500 parts by weight, preferably 200 to 350 parts by weight. 添加量が100重量部未満では、ポリエチレンイミンが本来、有している初期粘着性が発揮されずに、粘着力が低くなる。 The amount added is less than 100 parts by weight of polyethylene imine originally without being an initial tack which has the exhibit adhesive strength is lowered. 又、500重量部を越えると、水溶性粘着剤の凝集力が低下して、テープの保持力が悪くなる。 Further, if it exceeds 500 parts by weight, and cohesive strength of the water-soluble adhesive is lowered, holding power of the tape is poor.

【0013】本発明の水溶性粘着剤組成物の必須構成成分は上記(a)、(b)、(c)からなるが、他の成分として、必要に応じて、防錆剤、酸化防止剤、紫外線防止剤、脱水剤などが配合されても構わない。 [0013] essential component of the water-soluble pressure-sensitive adhesive composition of the present invention the above (a), (b), consists of (c), as other components, if necessary, rust inhibitors, antioxidants , ultraviolet inhibitor, is may be formulated such dehydrating agent.

【0014】本発明の水溶性粘着剤組成物は水、アルコール、これらの混合物に溶解でき、これを溶剤として使用できる。 [0014] water-soluble pressure-sensitive adhesive composition of the present invention is water, can be dissolved in an alcohol, a mixture thereof, it can be used as a solvent. 溶剤の使用量は、水溶性粘着剤組成物の各成分が均一に溶解できるに足りる量であり、塗布工程の作業性を考慮して、その濃度を適宜、定めることができる。 The amount of solvent is an amount sufficient to each component can be uniformly dissolved in a water-soluble pressure-sensitive adhesive composition, in consideration of the workability of the coating process, the concentration can be appropriately determined. 更に、本発明の水溶性粘着剤組成物は、固形分のみで、無溶剤タイプのホットメルト粘着剤としても使用できる。 Furthermore, water-soluble pressure-sensitive adhesive composition of the present invention, only solids, can also be used as solvent-free hot melt adhesive.

【0015】本発明に使用されるテープ基材としては、 [0015] As the tape substrate used in the present invention,
例えば、クラフト紙、上質紙、和紙などの紙基材が挙げられる。 For example, Kraft paper, high quality paper, and a paper substrate such as paper.

【0016】塗工方法としては、各種のロールコーター、ナイフコーターなどによる基材への直接塗工のほかに、離型処理した樹脂フィルム又は離型紙に塗工後、乾燥させて粘着剤層を形成させた後、テープ基材に圧着・ [0016] As the coating method, various roll coater, in addition to direct coating to a substrate such as by a knife coater, after coated on the release treated resin film or release paper, the adhesive layer is dried after forming, and pressure bonded to the tape substrate
転写する方法や溶剤を含まない水溶性粘着剤組成物を加熱・溶融して、ホットメルト塗工する方法などが挙げられる。 And heating and melting the water-soluble pressure-sensitive adhesive composition containing no method or solvent transfer, and a method of hot-melt coating.

【0017】 [0017]

【発明の実施の形態】以下に実施例を掲げて、本発明を更に詳しく説明するが、本発明はこれら実施例のみに限定されるものではない。 By way of examples in the following DETAILED DESCRIPTION OF THE INVENTION The present invention is described in more detail, the present invention is not limited to these examples.

【0018】 実施例1〜3、比較例1〜5 水溶性粘着剤組成物(水溶性粘着剤A)の作製表1の配合表に従って、下記の如き原料をイオン交換水500重量部と共に配合し、充分に攪拌して、水溶性粘着剤組成物を作製した。 [0018] following the recipe of Preparation Table 1 of Examples 1 to 3 and Comparative Examples 1 to 5 water-soluble adhesive composition (water-soluble adhesive A), blended with such material following ion exchange water 500 parts by weight , and well stirred to prepare a water-soluble pressure-sensitive adhesive composition. 尚、表1におけるポリビニルアルコールとしては、クラレ(株)社製の商品名「PVA As the polyvinyl alcohol in Table 1, Kuraray Co., Ltd. under the trade name of "PVA
−217」で、鹸化度が88mol%、20℃に於ける濃度4重量%水溶液の粘度が22.5万cpsのものを使用し、ヒドロキシプロピル化スターチとしては、松谷化学(株)社製の商品名「ソルビトーゼ650」を使用し、ソルビトールとしては、東和化成工業(株)社製の商品名「ソルビットL−70」を使用し、トリエタノールアミンとしては、日本触媒(株)社製のものを使用し、ポリエチレンイミンとしては、日本触媒(株)社製の商品名「エポミンP−1000」を使用した。 In -217 ", degree of saponification 88 mol%, the viscosity of at a concentration of 4 wt% aqueous solution 20 ° C. is used those 225,000 cps, as the hydroxypropylated starch, Matsutani Chemical Co., Ltd. of use the trade name "Sorubitoze 650", as sorbitol, using Towa Chemical industry Co., Ltd. under the trade name "sorbitol L-70", as triethanolamine, those of Nippon Shokubai Co., Ltd. using, as the polyethylene imine was used by Nippon Shokubai Co., Ltd. under the trade name of "Epomin P-1000".

【0019】 粘着テープの作製水溶性粘着剤組成物Aの溶液を、樹脂を片面にコートしたクラフト紙(坪量45g/m 2 )のコート面の反対側に塗工し、110℃のオーブン中で、7分間、乾燥することにより、水溶性粘着剤の厚さが30μmの粘着テープを得た。 [0019] The solution of Preparation soluble pressure-sensitive adhesive composition A pressure-sensitive adhesive tape was applied to the opposite side of the coated surface of the kraft paper coated with resin on one side (basis weight 45g / m 2), 110 ℃ oven in 7 minutes, followed by drying, the thickness of the water-soluble adhesive to obtain a 30μm adhesive tape.

【0020】評価項目及び評価法を以下に示す。 [0020] shown in the following evaluation items and evaluation methods. (粘着力)幅18mmにカットした上記粘着テープを、 The adhesive tape was cut into (adhesive strength) Width 18 mm,
耐水研磨紙#280で磨いたステンレス板に貼付し、2 Affixed to stainless steel plate polished with waterproof abrasive paper # 280, 2
0分間放置したのち、粘着力を180度角の剥離で、評価した。 After standing for 10 minutes, the adhesive strength in peeling at 180 degree angle, and evaluated. 結果は表1に示す。 The results are shown in Table 1. 尚、粘着力の評価は湿度の及ぼす効果を見るため、温度23℃に於いて、30%R The evaluation of the adhesive strength to see the effect of humidity, at a temperature 23 ° C., 30% R
Hと60%RHとの両者の条件で測定した。 It was measured in both the conditions of the H and 60% RH.

【0021】(ボールタック;J.Dow法)温度23 [0021] (ball tack; J.Dow method) temperature 23
℃、湿度60%RHの環境に於いて、傾斜角30度の斜面に、粘着テープを粘着剤面を上にして置き、100m ° C., at the environment of RH 60% humidity, the slope of the inclination angle of 30 degrees, placing an adhesive tape with an adhesive side up, 100 m
mの助走路から、直径が(2/32)〜1インチの各種鋼球を転がし、試料の粘着剤面上で、長さ100mmの所で停止する鋼球の最大直径で、タック値を表す。 From runway of m, roll the diameter (2/32) to 1 inch various steel balls, on the adhesive surface of the sample, the maximum diameter of the steel ball to stop at a length of 100 mm, representing a tack value . 結果は表1に示す。 The results are shown in Table 1. タック値=止まったボールの直径(インチ)×32 Tack value = perching ball diameter (inches) × 32

【0022】(粘着剤の水による溶解性試験)トイレットペーパーに粘着テープを貼り付けて、水の入ったガラス瓶に入れ、振盪機で一昼夜攪拌する。 [0022] Paste the adhesive tape to toilet paper (solubility test using water of the pressure-sensitive adhesive), put in a glass bottle containing water, and stirred overnight at shaker. 粘着剤の溶解の程度を目視で、溶解、膨潤、不溶の3段階で、評価する。 Visually the degree of dissolution of the adhesive, dissolution, swelling, in three stages of insoluble and evaluated. 結果は表1に示す。 The results are shown in Table 1.

【0023】 [0023]

【表1】 [Table 1]

【0024】 [0024]

【発明の効果】本発明の水溶性粘着剤組成物は上述の通りであるので、得られる水溶性粘着剤組成物は経時安定性が良く、湿度条件に関係なく良好な粘着力を示し、且つ、粘着剤の水溶性が優れている。 Since water-soluble pressure-sensitive adhesive composition of the present invention, according to the present invention is as described above, a water-soluble adhesive composition obtained has good stability over time, exhibited good adhesion independent of humidity conditions and , it is better soluble adhesive. その為、紙、ダンボールなどの包装・梱包に用いた場合、使用後の粘着剤が水に良好に溶解し、被着体のリサイクルに好適に機能する。 Therefore, paper, when used for packaging and packaging such as cardboard, an adhesive after use readily soluble in water, suitably functions in recycling the adherend.

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】(a)鹸化度が70〜100%のポリビニルアルコール100重量部に対し、(b)糖、アルカノールアミン、ポリエーテルポリオールからなる群より選ばれる少なくとも1種の水溶性可塑剤10〜160重量部と、(c)ポリエチレンイミン100〜500重量部とが配合されてなる水溶性粘着剤組成物。 1. A (a) with respect to a degree of saponification of 100 parts by weight 70% to 100% of the polyvinyl alcohol, (b) sugars, alkanolamines, at least one water-soluble plasticizing agent selected from the group consisting of polyether polyol 10 and 160 parts by weight, (c) a water-soluble pressure-sensitive adhesive composition and polyethyleneimine 100 to 500 parts by weight is blended.
JP32434995A 1995-12-13 1995-12-13 Water-soluble tacky adhesive agent composition Pending JPH09157627A (en)

Priority Applications (1)

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US9040652B2 (en) 2005-07-26 2015-05-26 Knauf Insulation, Llc Binders and materials made therewith
US9309436B2 (en) 2007-04-13 2016-04-12 Knauf Insulation, Inc. Composite maillard-resole binders
US9416248B2 (en) 2009-08-07 2016-08-16 Knauf Insulation, Inc. Molasses binder
US9447281B2 (en) 2007-01-25 2016-09-20 Knauf Insulation Sprl Composite wood board
US9492943B2 (en) 2012-08-17 2016-11-15 Knauf Insulation Sprl Wood board and process for its production
US9493603B2 (en) 2010-05-07 2016-11-15 Knauf Insulation Sprl Carbohydrate binders and materials made therewith
US9505883B2 (en) 2010-05-07 2016-11-29 Knauf Insulation Sprl Carbohydrate polyamine binders and materials made therewith
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Publication number Priority date Publication date Assignee Title
US9434854B2 (en) 2005-07-26 2016-09-06 Knauf Insulation, Inc. Binders and materials made therewith
US9745489B2 (en) 2005-07-26 2017-08-29 Knauf Insulation, Inc. Binders and materials made therewith
US9040652B2 (en) 2005-07-26 2015-05-26 Knauf Insulation, Llc Binders and materials made therewith
US9464207B2 (en) 2005-07-26 2016-10-11 Knauf Insulation, Inc. Binders and materials made therewith
US9260627B2 (en) 2005-07-26 2016-02-16 Knauf Insulation, Inc. Binders and materials made therewith
US9926464B2 (en) 2005-07-26 2018-03-27 Knauf Insulation, Inc. Binders and materials made therewith
US9828287B2 (en) 2007-01-25 2017-11-28 Knauf Insulation, Inc. Binders and materials made therewith
US9447281B2 (en) 2007-01-25 2016-09-20 Knauf Insulation Sprl Composite wood board
US9309436B2 (en) 2007-04-13 2016-04-12 Knauf Insulation, Inc. Composite maillard-resole binders
WO2008129056A1 (en) * 2007-04-24 2008-10-30 Basf Se Wood materials based on polyamine-containing binding agents
US9039827B2 (en) 2007-08-03 2015-05-26 Knauf Insulation, Llc Binders
US8979994B2 (en) 2007-08-03 2015-03-17 Knauf Insulation Sprl Binders
US8940089B2 (en) 2007-08-03 2015-01-27 Knauf Insulation Sprl Binders
US9469747B2 (en) 2007-08-03 2016-10-18 Knauf Insulation Sprl Mineral wool insulation
US9416248B2 (en) 2009-08-07 2016-08-16 Knauf Insulation, Inc. Molasses binder
US9493603B2 (en) 2010-05-07 2016-11-15 Knauf Insulation Sprl Carbohydrate binders and materials made therewith
US9505883B2 (en) 2010-05-07 2016-11-29 Knauf Insulation Sprl Carbohydrate polyamine binders and materials made therewith
US9492943B2 (en) 2012-08-17 2016-11-15 Knauf Insulation Sprl Wood board and process for its production

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