JPH1160411A - Wood preservative - Google Patents
Wood preservativeInfo
- Publication number
- JPH1160411A JPH1160411A JP27229497A JP27229497A JPH1160411A JP H1160411 A JPH1160411 A JP H1160411A JP 27229497 A JP27229497 A JP 27229497A JP 27229497 A JP27229497 A JP 27229497A JP H1160411 A JPH1160411 A JP H1160411A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- wood
- carboxylic acid
- wood preservative
- preservative
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、木材の防腐効果を
有する木材保存剤に関する。[0001] The present invention relates to a wood preservative having a preservative effect on wood.
【０００２】[0002]
【従来の技術】木材を建築物や部材として用いる際の重
要な問題は木材の菌や昆虫等による腐朽や食害を防ぐこ
とである。防腐に関しては、古くから金属化合物が殺菌
性を有することが知られており、１９世紀初頭から硫酸
銅等の水溶性銅化合物が木材の防腐を目的として用いら
れてきた。しかしこのものは木材から浸出しやすいため
に効果が持続しない欠点があり、金属、特に鉄の腐食を
起こす問題があった。次いで定着性に優れたＣＣＡ（ク
ロム酸塩砒酸銅）が用いられるようになり、現在も大量
に用いられている。しかし、人体に対する安全性や環境
上の問題から砒素やクロム等を用いないものが求められ
ている。2. Description of the Related Art An important problem when using wood as a building or a member is to prevent decay or damage by wood fungi or insects. With respect to preservation, it has long been known that metal compounds have bactericidal properties, and water-soluble copper compounds such as copper sulfate have been used for preserving wood since the early 19th century. However, this has a drawback that the effect is not sustained because it is easily leached from wood, and there has been a problem of causing corrosion of metals, particularly iron. Subsequently, CCA (copper chromate arsenate) having excellent fixing properties came to be used, and it is still used in large quantities at present. However, those which do not use arsenic, chromium, or the like are demanded from the viewpoint of human safety and environmental problems.
【０００３】より安全性の高いものとしてナフテン酸銅
やナフテン酸亜鉛、又これらと有機系防腐剤を組み合わ
せたものが提案されている（特開昭５４−２６３０８号
公報、特開平２−５９５０１号公報及び特開平２−２２
７２０２号公報）。又、銅、亜鉛、アルミニウム、コバ
ルト等の金属のアルキルベタイン塩化合物(特開平４−
２８２３０２号公報)や長鎖不飽和脂肪酸の銅、亜鉛、
鉄、コバルト、ニッケル等との金属石鹸（特表平６−５
００５０９号公報）、無機系ニッケル化合物の有機溶媒
の液剤（特開平８−２３１３２５号公報）等が提案され
ている。しかしこれらのものは、水に不溶であったり分
子量が高すぎるため、木材への注入又は含浸が困難であ
る等の問題点を有していた。又有機溶媒に懸濁又は溶解
して用いるものは取り扱いの危険性があり、これらのも
ので処理した木材は塗装性の低下、臭気の発生等の問題
点を有していた。更にこれらのものは防腐効果が未だ十
分でないという問題点も有していた。As safer materials, copper naphthenate and zinc naphthenate, and combinations of these and organic preservatives have been proposed (JP-A-54-26308, JP-A-2-59501). Gazette and JP-A-2-22
7202). Also, alkyl betaine salt compounds of metals such as copper, zinc, aluminum, and cobalt (Japanese Unexamined Patent Publication No.
No. 282302) and long-chain unsaturated fatty acids copper, zinc,
Metal soaps with iron, cobalt, nickel, etc.
No. 0509), and a solution of an inorganic nickel compound in an organic solvent (JP-A-8-231325). However, these have problems such as being insoluble in water or having a too high molecular weight, making it difficult to inject or impregnate into wood. In addition, wood suspended or dissolved in an organic solvent has a risk of handling, and wood treated with these woods has problems such as deterioration of paintability and generation of odor. Further, these have a problem that the preservative effect is not yet sufficient.
【０００４】一方、木材への含浸性や塗装性の改良のた
め、水溶性の金属化合物を用いるいくつかの提案がされ
ている。例えば、クエン酸やシュウ酸等の有機酸の銅や
亜鉛塩のアンモニア水溶液が提案されている（特開昭６
２−１９３８０２号公報及び特表昭６２−５０２８８９
号公報）。しかしながら、これらのものは防腐効果が未
だ十分ではない。On the other hand, some proposals have been made to use a water-soluble metal compound in order to improve the impregnation property and coating property of wood. For example, an aqueous ammonia solution of a copper or zinc salt of an organic acid such as citric acid or oxalic acid has been proposed (Japanese Patent Application Laid-open No. Sho 6 (1994)).
JP-A-2-193802 and JP-T-62-502889
No.). However, these do not yet have a sufficient preservative effect.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、水溶
液であるために火災の危険がなく、取り扱い上の安全性
が高く、木材への含浸が容易であり臭気も無くかつ防腐
効果に優れた木材保存剤を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to provide an aqueous solution which does not cause a fire hazard, has high handling safety, is easy to impregnate wood, has no odor, and has an excellent preservative effect. Wood preservatives.
【０００６】[0006]
【課題を解決するための手段】即ち、本発明は次の一般
式（１）で示されるカルボン酸と銀、銅、亜鉛及び元素
周期表の第８族から選ばれた金属の化合物とからなる木
材保存剤である。That is, the present invention comprises a carboxylic acid represented by the following general formula (1) and a compound of silver, copper, zinc and a metal selected from Group 8 of the periodic table. It is a wood preservative.
【０００７】[0007]
【化２】 Embedded image
【０００８】(但し、Ｒは炭素数１〜１２のアルキレン
基を表す。）(Where R represents an alkylene group having 1 to 12 carbon atoms)
【０００９】[0009]
【発明の実施の形態】本発明で用いる一般式（１）で示
されるカルボン酸のＲは炭素数１〜１２のアルキレン基
であり、具体的にはメチレン基、エチレン基、プロピレ
ン基、トリメチレン基、１，４−ブチレン基、１，２−
ブチレン基、１，６−ヘキシレン基、１，８−オクチレ
ン基、１，１０−デシレン基等が挙げられ、好ましくは
メチレン基又はエチレン基である。Ｒの炭素数が１２を
超えると分子量が大きくなるため、木材の細胞膜中への
浸透及び拡散が不十分となり好ましくない。本発明で用
いる一般式（１）のカルボン酸の具体的な例としては、
カルボキシメチルチオコハク酸、カルボキシエチルチオ
コハク酸、カルボキシプロピルチオコハク酸、カルボキ
シブチルチオコハク酸、カルボキシデシルチオコハク酸
等が挙げられ、これらを一種又は二種以上組み合わせて
用いる。BEST MODE FOR CARRYING OUT THE INVENTION In the carboxylic acid represented by the general formula (1) used in the present invention, R is an alkylene group having 1 to 12 carbon atoms, specifically, a methylene group, an ethylene group, a propylene group, and a trimethylene group. , 1,4-butylene group, 1,2-
Examples thereof include a butylene group, a 1,6-hexylene group, a 1,8-octylene group, a 1,10-decylene group, and a methylene group or an ethylene group is preferable. If the carbon number of R exceeds 12, the molecular weight increases, and the penetration and diffusion of the wood into the cell membrane are insufficient, which is not preferable. Specific examples of the carboxylic acid of the general formula (1) used in the present invention include:
Examples include carboxymethylthiosuccinic acid, carboxyethylthiosuccinic acid, carboxypropylthiosuccinic acid, carboxybutylthiosuccinic acid, carboxydecylthiosuccinic acid, and the like, and these may be used alone or in combination of two or more.
【００１０】本発明の一般式（１）で示されるカルボン
酸はＦ．Ｂ．Ｚｉｅｎｔｙ；Ｊｏｕｒｎａｌ ｏｆ Ｏ
ｒｇａｎｉｃ Ｃｈｅｍｉｓｔｒｙ、第２７巻、第３１
４０ページ、１９６２年発行に示された方法又はそれに
準じた方法で製造することができる。即ち水又は有機溶
媒中でマレイン酸とメルカプトカルボン酸とを無触媒あ
るいは塩基性触媒の存在下に加熱して付加反応させるこ
とにより製造される。The carboxylic acid of the present invention represented by the general formula (1) can B. Zenty; Journal of O
rganic Chemistry, Vol. 27, No. 31
It can be manufactured by the method shown on page 40, published in 1962 or a method analogous thereto. That is, it is produced by heating and reacting maleic acid and mercaptocarboxylic acid in water or an organic solvent in the absence of a catalyst or in the presence of a basic catalyst.
【００１１】本発明で用いる金属の化合物に含まれる金
属は、銀、銅、亜鉛及び周期表の第８族の中から選ばれ
た一種又は二種以上を組み合わせたものであり、周期表
の第８族の金属は、鉄、コバルト、ニッケル、白金等が
挙げられる。これらの金属は木材腐朽菌に対して防腐効
果があり、人畜に対しても比較的毒性の少ないものであ
る。一般式（１）のカルボン酸と塩を形成させる際の金
属化合物の形態は、金属単体、酸化物、塩化物、水酸化
物、炭酸塩、硫酸塩、硝酸塩のいずれでもよいが、特に
好ましくは炭酸塩である。なお、錯塩であってもよい。The metal contained in the metal compound used in the present invention is silver, copper, zinc and one or a combination of two or more selected from Group VIII of the periodic table. Group 8 metals include iron, cobalt, nickel, platinum and the like. These metals have an antiseptic effect against wood rot fungi and are relatively less toxic to humans and animals. The form of the metal compound when forming a salt with the carboxylic acid of the general formula (1) may be any of a simple metal, an oxide, a chloride, a hydroxide, a carbonate, a sulfate, and a nitrate, and particularly preferably. It is a carbonate. In addition, it may be a complex salt.
【００１２】一般式（１）のカルボン酸と金属の化合物
との調製は、例えばカルボン酸に前記金属の炭酸塩を化
学量論量の０．２〜５倍の量を３０〜８０℃で１〜１０
時間反応させることにより行うことができる。又、カル
ボン酸と銀又は銅化合物の場合は、アンモニア水又は水
溶性アミンを添加すると高濃度の水溶液が得られる。The preparation of the compound of the formula (1) with a carboxylic acid and a metal is carried out, for example, by adding a carbonate of the metal to the carboxylic acid in an amount of 0.2 to 5 times the stoichiometric amount at 30 to 80 ° C. -10
It can be performed by reacting for a time. In the case of a carboxylic acid and a silver or copper compound, a high-concentration aqueous solution can be obtained by adding aqueous ammonia or a water-soluble amine.
【００１３】本発明の木材保存剤は、通常水で希釈して
金属濃度を０．１〜３％の範囲の水溶液を調製して木材
に含浸させる。含浸量は通常、木材に対して１０〜２０
０ｋｇ／ｍ3であり、１０ｋｇ／ｍ3より少ないと防腐効
果が十分でなくなる傾向があり、２００ｋｇ／ｍ3より
多く含浸させても防腐効果が上がらず経済的に不利であ
る。含浸方法は刷毛塗り、スプレー、浸漬、加圧注入等
の公知の方法によるが、含浸させる量や木材の種類によ
り適宜選択することができる。更に、本発明の木材保存
剤を含浸させた後、通常木材を養生又は加熱処理を行
う。この場合の加熱温度は５０〜１６０℃で、加熱時間
は１０分〜２時間が好ましい。The wood preservative of the present invention is usually diluted with water to prepare an aqueous solution having a metal concentration of 0.1 to 3% and impregnated into wood. The impregnation amount is usually 10-20 for wood.
It is 0 kg / m 3 , and if it is less than 10 kg / m 3 , the preservative effect tends to be insufficient, and even if impregnated more than 200 kg / m 3 , the preservative effect does not increase and it is economically disadvantageous. The impregnation method is a known method such as brushing, spraying, immersion, pressure injection and the like, and can be appropriately selected depending on the amount to be impregnated and the type of wood. Furthermore, after impregnating the wood preservative of the present invention, the wood is usually cured or heat-treated. In this case, the heating temperature is preferably from 50 to 160 ° C., and the heating time is preferably from 10 minutes to 2 hours.
【００１４】又、本発明の木材保存剤は、他に寸法安定
剤や有機系のヨードカーボネート、ヨードカルバメート
等の防蟻剤や防黴剤を併用してもよい。本発明の木材保
存剤は、建築用に広く用いられている松、杉、檜、栂、
ヒバ等の針葉樹、ナラ、ブナ等の広葉樹が対象であり、
これらの無垢材、合板、集成材等に用いられる。In addition, the wood preservative of the present invention may be used in combination with a dimension stabilizer, an termite-controlling agent such as organic iodocarbonate and iodocarbamate, and a fungicide. Wood preservatives of the present invention are widely used for construction pine, cedar, cypress, toga,
Conifers such as hiba, hardwoods such as oak and beech are targets,
It is used for these solid wood, plywood, laminated wood and the like.
【００１５】[0015]
【発明の効果】本発明の木材保存剤は水溶液として作用
されるため木材への含浸が容易で発泡等もなく、又不燃
性であるので取り扱い上の安全性も高く、かつ処理して
得られた木材は臭気もなく、優れた防腐効果を有してお
り屋外で長期間の使用が可能である。The wood preservative of the present invention can be impregnated into wood easily because it acts as an aqueous solution without foaming, and is nonflammable, so that it is highly safe to handle and can be obtained by processing. Wood has no odor, has an excellent preservative effect, and can be used outdoors for a long time.
【００１６】[0016]
【実施例】次に本発明を製造例及び実施例により更に具
体的に説明する。 製造例１ ５００ｍｌの四つ口フラスコに炭酸ニッケル（ＮｉＣＯ
3・２Ｎｉ（ＯＨ）2・４Ｈ2Ｏ 分子量４００．２０ 内
ニッケル含量４４．２重量％）３９．８ｇ（０．１０モ
ル）、カルボキシエチルチオコハク酸（一般式（１）の
Ｒがエチレン基）４４．４ｇ（０．２０モル）及び水を
２０９ｍｌ添加した。撹拌しながら７０℃まで昇温し、
さらに２時間撹拌を続けた。その際初期に少し発泡が見
られ、その反応液は淡緑色のスラリーから濃緑色の均一
溶液に変化した。この溶液のｐＨは３．８、ニッケルの
含有量は６．１％であった。Next, the present invention will be described more specifically with reference to Production Examples and Examples. Production Example 1 Nickel carbonate (NiCO3) was placed in a 500 ml four-necked flask.
3 · 2Ni (OH) 2 · 4H 2 O molecular weight 400.20 in nickel content 44.2 wt%) 39.8 g R is ethylene group (0.10 mol), carboxyethyl thio succinic acid (formula (1) 44.4 g (0.20 mol) and 209 ml of water were added. The temperature was raised to 70 ° C while stirring,
Stirring was continued for another 2 hours. At that time, a little foaming was observed in the early stage, and the reaction solution changed from a pale green slurry to a dark green homogeneous solution. This solution had a pH of 3.8 and a nickel content of 6.1%.
【００１７】製造例２〜８ 製造例１に準じた方法で各カルボン酸と金属化合物との
水溶液を調製した。その結果を表１に示す。Production Examples 2 to 8 Aqueous solutions of each carboxylic acid and a metal compound were prepared in the same manner as in Production Example 1. Table 1 shows the results.
【００１８】[0018]
【表１】 [Table 1]
【００１９】実施例１〜９ 製造例で調製したカルボン酸と金属化合物との水溶液を
水で希釈して表２に示した濃度に調整し、これに試験材
を浸漬した。これを用いて以下の方法で防腐試験を行っ
た。又、処理した試験材の臭気の有無を官能試験により
評価した。Examples 1 to 9 The aqueous solutions of a carboxylic acid and a metal compound prepared in Production Examples were diluted with water to adjust the concentrations shown in Table 2, and the test materials were immersed therein. Using this, an antiseptic test was performed by the following method. Further, the presence or absence of odor of the treated test material was evaluated by a sensory test.
【００２０】（１）木材保存剤中の金属濃度の測定 試験に用いた木材保存剤中の金属の濃度を原子吸光光度
計で測定した。(1) Measurement of Metal Concentration in Wood Preservative The metal concentration in the wood preservative used in the test was measured with an atomic absorption spectrophotometer.
【００２１】（２）試験材の処理 杉の辺材（木口面：２０ｍｍ×２０ｍｍ、厚さ１０ｍｍ
の木片）を試験材として用い、６００ｍｍＨｇの減圧下
に３０分放置したのち、木材保存剤に浸漬して１５ｋｇ
／ｃｍ2で３時間加圧し、試験材を取り出したのち６０
０ｍｍＨｇで３０分減圧下に置いた。木材保存剤の各濃
度毎に浸漬処理を行った試験材をポリ塩化ビニル製の袋
に入れて１ヶ月間３０℃で実験室内に放置して養生した
後、８０℃で１２０時間乾燥させ、木材保存剤の含浸量
を求めた。尚、計算は次式により行った。木材保存剤の
含浸量（ｋｇ／ｍ3）=（乾燥後の試験材の重量（ｇ）−
浸漬処理前の試験材の重量(ｇ)）／浸漬処理前の試験材
の体積（ｃｍ3）×１０００(2) Treatment of test material Sapwood of cedar (wood edge: 20 mm × 20 mm, thickness 10 mm)
Wood piece) as a test material, left under a reduced pressure of 600 mmHg for 30 minutes, immersed in a wood preservative, and weighed 15 kg.
/ Cm 2 for 3 hours.
Placed under reduced pressure at 0 mmHg for 30 minutes. The test material subjected to the immersion treatment for each concentration of the wood preservative was placed in a polyvinyl chloride bag, left in a laboratory at 30 ° C. for one month, cured, and then dried at 80 ° C. for 120 hours. The impregnation amount of the preservative was determined. The calculation was performed according to the following equation. Impregnation amount of wood preservative (kg / m 3 ) = (weight of test material after drying (g)-
Weight of test material before immersion treatment (g)) / volume of test material before immersion treatment (cm 3 ) × 1000
【００２２】（３）試験材の耐候操作 浸漬及び乾燥を終了した試験材をＪＩＳ Ａ９２０１に
従って流脱と揮散操作を１０回繰り返した。(3) Weathering operation of test material The immersion and drying of the test material were repeated 10 times according to JIS A9201.
【００２３】（４）試験材の腐朽試験 耐候操作を終えた試験材を、金網上で２日間風乾した
後、送風循環式の乾燥機に入れ、６０℃で恒量になるま
で乾燥させたのち、その重量を測定した。ＪＩＳＡ９２
０１に従いカワラタケ（Ｃｏｒｉｏｌｕｓ ｖｅｒｓｉ
ｃｏｌｏｒ)及びオオウズラタケ(Ｔｙｒｏｍｙｃｅｓ
ｐａｌｕｓｔｒｉｓ）を用いて腐朽試験を行った。カワ
ラタケは直接、オオウズラタケでは殺菌した１ｍｍ厚の
ポリエステル製の網を敷いた上に試験材を繊維方向を垂
直に載せ、２６℃、相対湿度７０％の環境に１２週間放
置した。その後試験材の表面の付着物を取り除き、金網
上で２日間風乾したのち重量を測定した。以下の式によ
り試験材の重量減少率（％）を求めた。 試験材の重量減少率（％）＝（腐朽試験前重量（ｇ）−
腐朽試験後重量（ｇ））／腐朽試験前重量(ｇ)×１００(4) Decay test of test material After the weathering operation, the test material was air-dried on a wire mesh for 2 days, then put into a circulating air dryer, and dried at 60 ° C. until a constant weight was obtained. The weight was measured. JISA92
No. 01 (coriolus versi)
color) and Japanese quail mushroom (Tyromyces)
decay test was carried out using a P. austris. In the case of Kawatake mushroom, the test material was placed vertically on a 1 mm thick polyester net which was sterilized in the case of Japanese quail mushroom. Thereafter, the attached material on the surface of the test material was removed, and the material was air-dried on a wire mesh for 2 days, and then the weight was measured. The weight loss rate (%) of the test material was determined by the following equation. Weight loss rate of test material (%) = (weight before rot test (g)-
Weight after rot test (g)) / Weight before rot test (g) x 100
【００２４】（５）試験材の臭気の評価 前述の（２）の処理を行なった乾燥材の臭気を官能試験
により未処理の試験片と比較し評価を行った。 あり：未処理と異なる臭気のもの なし：未処理と同様の臭気のもの これらの結果を表２にまとめて示した。(5) Evaluation of Odor of Test Material The odor of the dried material treated in the above (2) was evaluated by a sensory test by comparing it with an untreated test piece. With: Those with an odor different from that of untreated No: With the same odor as that of untreated These results are summarized in Table 2.
【００２５】比較例１〜６ 木材保存剤を用いないか、又は公知の保存剤を用いて実
施例に準じた方法で木材の腐朽試験を行った。その結果
を表３に示した。Comparative Examples 1 to 6 Wood decay tests were carried out in the same manner as in the Examples without using a wood preservative or using a known preservative. Table 3 shows the results.
【００２６】[0026]
【表２】 [Table 2]
【００２７】[0027]
【表３】 [Table 3]
【００２８】実施例と比較例１〜４を比較すると、実施
例は木材腐朽試験においていずれの菌においても重量減
少率が低く、木材保存剤として優れていることが分る。
又、実施例と比較例３及び５を比較すると、比較例３は
アセトン溶液で希釈しているため臭気が強く、比較例５
は木材腐朽試験において重量減少率は変らないものの、
臭気が強く環境上問題の有ることが分る。When the examples are compared with comparative examples 1 to 4, it can be seen that the examples have a low weight loss rate for any of the bacteria in the wood decay test and are excellent as wood preservatives.
In addition, comparing Example and Comparative Examples 3 and 5, Comparative Example 3 has a strong odor due to dilution with an acetone solution.
Although the weight loss rate does not change in the wood decay test,
It turns out that the odor is strong and there is an environmental problem.
Claims (1)
銀、銅、亜鉛及び元素周期表の第８族から選ばれた金属
の化合物とからなる木材保存剤。 【化１】 (但し、Ｒは炭素数１〜１２のアルキレン基を表す。）1. A wood preservative comprising a carboxylic acid represented by the following general formula (1) and a compound of silver, copper, zinc and a metal selected from Group 8 of the periodic table. Embedded image (However, R represents an alkylene group having 1 to 12 carbon atoms.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27229497A JPH1160411A (en) | 1997-06-10 | 1997-10-06 | Wood preservative |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15254197 | 1997-06-10 | ||
| JP9-152541 | 1997-06-10 | ||
| JP27229497A JPH1160411A (en) | 1997-06-10 | 1997-10-06 | Wood preservative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1160411A true JPH1160411A (en) | 1999-03-02 |
Family
ID=26481426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27229497A Pending JPH1160411A (en) | 1997-06-10 | 1997-10-06 | Wood preservative |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1160411A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269403A (en) * | 2008-05-06 | 2009-11-19 | Calignum Technologies Ab | New composition |
| WO2012153760A1 (en) | 2011-05-11 | 2012-11-15 | 日本曹達株式会社 | Construction material preservative |
| CN106313231A (en) * | 2016-11-04 | 2017-01-11 | 徐州得铸生物科技有限公司 | Wood preservative containing compound MannolideA |
| CN110962206A (en) * | 2019-12-23 | 2020-04-07 | 德华兔宝宝装饰新材股份有限公司 | Manufacturing method of colorful electromagnetic shielding technical wood |
| CN115072885A (en) * | 2022-07-14 | 2022-09-20 | 欣格瑞（山东）环境科技有限公司 | Nanofiltration concentrated solution modifier and preparation method thereof |
| WO2022266813A1 (en) * | 2021-06-21 | 2022-12-29 | Kemira Oyj | A method for treating fibre material |
-
1997
- 1997-10-06 JP JP27229497A patent/JPH1160411A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269403A (en) * | 2008-05-06 | 2009-11-19 | Calignum Technologies Ab | New composition |
| WO2012153760A1 (en) | 2011-05-11 | 2012-11-15 | 日本曹達株式会社 | Construction material preservative |
| KR20130135390A (en) | 2011-05-11 | 2013-12-10 | 닛뽕소다 가부시키가이샤 | Construction material preservative |
| US9433216B2 (en) | 2011-05-11 | 2016-09-06 | Nippon Soda Co., Ltd. | Construction material preservative |
| CN106313231A (en) * | 2016-11-04 | 2017-01-11 | 徐州得铸生物科技有限公司 | Wood preservative containing compound MannolideA |
| CN110962206A (en) * | 2019-12-23 | 2020-04-07 | 德华兔宝宝装饰新材股份有限公司 | Manufacturing method of colorful electromagnetic shielding technical wood |
| WO2022266813A1 (en) * | 2021-06-21 | 2022-12-29 | Kemira Oyj | A method for treating fibre material |
| CN115072885A (en) * | 2022-07-14 | 2022-09-20 | 欣格瑞（山东）环境科技有限公司 | Nanofiltration concentrated solution modifier and preparation method thereof |
| CN115072885B (en) * | 2022-07-14 | 2022-11-15 | 欣格瑞（山东）环境科技有限公司 | Nanofiltration concentrated solution modifier and preparation method thereof |
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