JP2000044906A - Starch paste - Google Patents
Starch pasteInfo
- Publication number
- JP2000044906A JP2000044906A JP10215267A JP21526798A JP2000044906A JP 2000044906 A JP2000044906 A JP 2000044906A JP 10215267 A JP10215267 A JP 10215267A JP 21526798 A JP21526798 A JP 21526798A JP 2000044906 A JP2000044906 A JP 2000044906A
- Authority
- JP
- Japan
- Prior art keywords
- anhydride
- starch
- starch paste
- acid
- alkali
- 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.)
- Granted
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は例えば洗濯糊、事務
用糊、紙袋、紙箱などの紙工用接着剤、壁紙施工用糊等
に使用される澱粉糊に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a starch paste used as an adhesive for paperwork such as laundry paste, office paste, paper bags, paper boxes, etc., and paste for wallpaper application.
【０００２】[0002]
【従来の技術】従来、澱粉糊は次の２つの製造方法が取
られている。第１の方法は、古くから行われて来た加熱
による糊化方法である。澱粉を水に懸濁し、攪拌しなが
ら熱を加えるもので煮糊とも言われている。2. Description of the Related Art Conventionally, starch paste has been produced by the following two methods. The first method is a gelatinization method by heating that has been performed for a long time. The starch is suspended in water and heated while stirring, and is also called boiling paste.
【０００３】第２の方法は、近年製造されるようになっ
たアルカリ糊化の方法である。熱を加える代わりにアル
カリを加えることで糊化するため、冷糊法と言われてい
る。A second method is an alkali gelatinization method which has recently been manufactured. The gelatinization is performed by adding an alkali instead of applying heat.
【０００４】原料としての澱粉は何れの方法でも、米澱
粉、小麦澱粉、コーンスターチ、ポテトスターチ、タピ
オカスターチ、甘藷澱粉などの天然澱粉とそれらを化学
的、物理的に処理した加工澱粉が単独であるいは混合し
て使用される。In any method, starch as a raw material may be a natural starch such as rice starch, wheat starch, corn starch, potato starch, tapioca starch, sweet potato starch, and a modified starch obtained by chemically or physically treating them. Used mixed.
【０００５】前記２つの製造方法を比較検討すると、加
熱による製造方法については、比較的、小資本で製造で
き、製造コストが安価であり、特殊な薬剤及び技術を要
しない。また、特殊な製造設備がいらない等の長所を有
しているが、一定の品質の製品を製造しようとすると高
度の熟練が必要となり、１バッチあたりの製造量が少な
く、多くすると昇温及び冷却に時間がかかる問題があ
り、現在では、工業的に有利なアルカリ糊化による澱粉
糊が主流となっている。[0005] Comparing the above two manufacturing methods, the manufacturing method by heating can be manufactured with relatively small capital, the manufacturing cost is low, and no special drug or technique is required. In addition, although it has the advantage of not requiring special manufacturing equipment, it requires a high level of skill to manufacture products of a certain quality, the production volume per batch is small, and if it is large, temperature rise and cooling However, at present, starch paste obtained by alkali gelatinization, which is industrially advantageous, is mainly used.
【０００６】ここで一般的なアルカリ糊化による澱粉糊
の製造方法を述べると、先ず、澱粉を水に懸濁し、次に
１０〜５０％のアルカリ水溶液を攪拌しながら加え、糊
化し、糊化後中和剤として無機酸を加え、ｐＨ５〜８に
調整し、次に防腐剤、防黴剤その他公知の添加剤を加え
て製造する。Here, a general method for producing starch paste by alkali gelatinization will be described. First, starch is suspended in water, and then a 10-50% aqueous alkali solution is added with stirring to gelatinize and gelatinize. Thereafter, an inorganic acid is added as a neutralizing agent to adjust the pH to 5 to 8, and then a preservative, a fungicide, and other known additives are added to produce the composition.
【０００７】アルカリとしては、一般的にはカセイソー
ダが使用される。中和に使用する無機酸としては、塩
酸、硝酸、硫酸などが使用されているが、安定性の点か
ら硝酸が一般的に使用される。このため製品中には、硝
酸ソーダが１〜数％含まれているのが一般的である。As the alkali, caustic soda is generally used. As the inorganic acid used for neutralization, hydrochloric acid, nitric acid, sulfuric acid and the like are used, but nitric acid is generally used from the viewpoint of stability. For this reason, the product generally contains 1% to several% of sodium nitrate.
【０００８】アルカリ糊化（冷糊法）により、製造され
た澱粉糊は、酸に硝酸を使用した場合、接着剤がハミ出
た皮膜の表面が経年し、紫外線により劣化着色する欠点
を有している。特に近年壁紙施工用として澱粉糊が使用
されているが、この欠点から施工後１〜２年して問題が
発生している。[0008] Starch paste produced by alkali gelatinization (cold paste method) has the disadvantage that when nitric acid is used as the acid, the surface of the film from which the adhesive has come out is aged and deteriorated and colored by ultraviolet rays. ing. Particularly in recent years, starch paste has been used for wallpaper construction, but this drawback causes a problem one to two years after construction.
【０００９】これに対して加熱糊は薬品を使用しないた
め、施工後のハミ出し部分が劣化して着色するというこ
とはないが、施工中及び施工後の接着性能が低いためと
一定の品質のものを大規模に製造できないため、使用さ
れることが少ない。On the other hand, the heating glue does not use any chemicals, so that the exposed portion after the application does not deteriorate and is colored, but the adhesive performance during and after the application is low, and the quality of the paste is constant. Since they cannot be manufactured on a large scale, they are rarely used.
【００１０】また、硝酸に換えて、塩酸、硫酸等を中和
剤として使用した場合には前記の施工後、ハミ出した部
分が劣化着色することはないが、糊の安定性が著しく悪
くなり、実際の製品にはなり難い。When hydrochloric acid, sulfuric acid or the like is used as a neutralizing agent in place of nitric acid, the exfoliated portion will not be degraded and colored after the above-mentioned work, but the stability of the paste will be significantly deteriorated. , Hard to become an actual product.
【００１１】[0011]
【発明が解決しようとする課題】このために本発明者
は、中和剤について、各種無機酸及び有機酸を鋭意検討
したところ、有機酸の酸無水物又は塩化アシル化合物を
用いることが特別に優れた澱粉糊を作るのに効果がある
ことを突き止め、本発明に至った。For this purpose, the present inventors have conducted intensive studies on various inorganic acids and organic acids with respect to the neutralizing agent, and found that the use of acid anhydrides of organic acids or acyl chloride compounds is particularly important. The present inventors have found that it is effective in producing excellent starch paste, and have reached the present invention.
【００１２】本発明は、上記従来の問題点を解決するも
のであり、次に示す性能を有する澱粉糊を提供すること
にある。即ち、アルカリ糊化による製造で得られる澱粉
糊であり、特別な設備を必要とせず、一定した品質のも
のを容易に安定的に供給でき、凍結安定性、貯蔵安定性
が良好であり、接着性能が良く、製品の被膜が紫外線に
当っても劣化着色しない澱粉糊を得ることを目的とす
る。The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide a starch paste having the following performance. That is, it is a starch paste obtained by production by alkali gelatinization, which does not require special equipment, can easily and stably supply a product of constant quality, has good freezing stability and storage stability, and has good adhesion. It is an object of the present invention to obtain a starch paste which has good performance and does not deteriorate and discolor even when the film of the product is exposed to ultraviolet rays.
【００１３】[0013]
【課題を解決するための手段】本請求項１に記載された
発明に係る澱粉糊は、澱粉を水に懸濁させ、アルカリを
加えて糊化させた後、中和剤で中和させてなる澱粉糊に
おいて、前記中和剤が、有機酸の酸無水物又は塩化アシ
ル化合物であるものである。The starch paste according to the first aspect of the present invention is prepared by suspending starch in water, adding an alkali to gelatinize the mixture, and neutralizing the mixture with a neutralizing agent. In the starch paste, the neutralizing agent is an acid anhydride of an organic acid or an acyl chloride compound.
【００１４】本請求項２に記載された発明に係る澱粉糊
は、請求項１に記載された有機酸の酸無水物が、無水フ
タル酸、無水酢酸、無水琥珀酸、無水プロピオン酸から
選ばれた１種以上のものである。[0014] In the starch paste according to the second aspect of the present invention, the acid anhydride of the organic acid according to the first aspect is selected from phthalic anhydride, acetic anhydride, succinic anhydride, and propionic anhydride. One or more.
【００１５】本請求項３に記載された発明に係る澱粉糊
は、請求項１に記載された有機酸の塩化アシル化合物
が、塩化フタロイル、塩化アセチルから選ばれた１種以
上のものである。In the starch paste according to the third aspect of the present invention, the acyl chloride compound of the organic acid according to the first aspect is at least one selected from phthaloyl chloride and acetyl chloride.
【００１６】本請求項４に記載された発明に係る澱粉糊
は、請求項１に記載された澱粉に加えるアルカリが、Ｎ
ａＯＨ、ＫＯＨ、Ｃａ（ＯＨ）２から選ばれたアルカリ
金属又はアルカリ土類金属に属する水酸化アルカリの水
溶液、または水溶液がアルカリ性を呈する化合物の単独
物又は混合物である。The starch paste according to the present invention described in claim 4 is characterized in that the alkali added to the starch described in claim 1 is N
It is an aqueous solution of an alkali hydroxide belonging to an alkali metal or an alkaline earth metal selected from aOH, KOH, and Ca (OH) 2 , or a single compound or a mixture of compounds in which the aqueous solution exhibits alkalinity.
【００１７】本請求項５に記載された発明に係る澱粉糊
は、請求項１〜４の何れかに記載された澱粉糊に防腐
剤、防黴剤或いはその他公知の添加剤を添加してなるも
のである。The starch paste according to the invention described in claim 5 is obtained by adding a preservative, an antifungal agent or other known additives to the starch paste described in any one of claims 1 to 4. Things.
【００１８】[0018]
【発明の実施の形態】本発明においては、澱粉を水に懸
濁させ、アルカリを加えて糊化させた後、中和剤で中和
させてなる澱粉糊において、前記中和剤が有機酸の酸無
水物又は塩化アシル化合物であるものである。このた
め、特別な設備を必要とせず、一定した品質のものを容
易に安定的に供給でき、凍結安定性、貯蔵安定性が良好
であり、接着性能が良く、製品の被膜が紫外線に当って
も劣化着色しない特徴を持つアルカリ糊化による製造で
得られる澱粉糊を得ることができる。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a starch paste is prepared by suspending starch in water, adding an alkali to gelatinize, and neutralizing with a neutralizing agent. Is an acid anhydride or an acyl chloride compound. For this reason, it does not require special equipment, it can easily and stably supply a product of constant quality, has good freezing stability and storage stability, has good adhesive performance, and the product film is exposed to ultraviolet light. A starch paste obtained by production by alkali gelatinization, which does not deteriorate or discolor, can be obtained.
【００１９】即ち、本発明に係る澱粉糊では、澱粉を水
に懸濁させ、アルカリを加えて糊化させた後、有機酸の
酸無水物又は塩化アシル化合物を用いて中和させてなる
澱粉糊である。本発明における澱粉糊は、澱粉を水に懸
濁し、攪拌しながらアルカリを加え、糊化後有機酸の酸
無水物又は塩化アシル化合物を中和剤として使用するこ
とによって目的が達成される。That is, in the starch paste according to the present invention, starch is suspended in water, gelatinized by adding an alkali, and then neutralized with an acid anhydride of an organic acid or an acyl chloride compound. It is glue. The purpose of the starch paste in the present invention is achieved by suspending starch in water, adding an alkali with stirring, and after gelatinization, using an acid anhydride of an organic acid or an acyl chloride compound as a neutralizing agent.
【００２０】公知のごとく、有機酸の酸無水物又は塩化
アシル化合物は、水酸基にアルカリを付加させた後に、
添加し、加熱することで、水酸基をエステル結合させる
ことは古くから行われている。しかしながら、本発明で
は、中和剤として有機酸の酸無水物又は塩化アシル化合
物を使用するのであって、このエステル化反応を期待す
るものでなく、常温で加えられた有機酸の酸無水物又は
塩化アシル化合物は、単に先に添加されたアルカリの中
和剤としてのみ働いており、系中では、有機酸塩となっ
て存在する。As is known, an acid anhydride of an organic acid or an acyl chloride compound is obtained by adding an alkali to a hydroxyl group.
It has long been practiced that the hydroxyl groups are ester-bonded by adding and heating. However, in the present invention, an acid anhydride of an organic acid or an acyl chloride compound is used as a neutralizing agent, and this esterification reaction is not expected, and an acid anhydride of an organic acid added at room temperature or The acyl chloride compound functions only as a neutralizer for the alkali added earlier, and exists as an organic acid salt in the system.
【００２１】このようにして得られた澱粉糊は、塩酸、
硫酸他の有機酸のみならず、現在一般的に安定性が良い
糊を供給する目的で使用されている硝酸よりも、更に安
定性が優れたものであることは全く新規なことである。
有機酸塩が澱粉糊の安定性を良くする理由としては、ま
だ明確ではないが、糊化した澱粉粒子の水和を増大させ
ているためであると思われる。The starch paste thus obtained is prepared by adding hydrochloric acid,
Sulfuric acid In addition to other organic acids, it is completely novel that nitric acid is more excellent in stability than nitric acid which is generally used for supplying a paste having good stability.
The reason why the organic acid salt improves the stability of the starch paste is not clear yet, but is considered to be because it increases the hydration of the gelatinized starch particles.
【００２２】有機酸の酸無水物又は塩化アシル化合物に
よって中和された澱粉糊は次のような特徴がある。 (1) 凍結安定性及び貯蔵安定性に優れている。 (2) 窒素原子を含まない有機酸の酸塩化物、酸無水物を
選ぶことで、接着剤の被膜が紫外線により劣化着色しな
い。 (3) 接着性能に優れている。The starch paste neutralized with an acid anhydride of an organic acid or an acyl chloride compound has the following characteristics. (1) Excellent freezing stability and storage stability. (2) By selecting an acid chloride or an acid anhydride of an organic acid containing no nitrogen atom, the adhesive film is not deteriorated and colored by ultraviolet rays. (3) Excellent bonding performance.
【００２３】以上のように、本発明の澱粉糊は、従来工
業的に製造されていた澱粉糊の問題を一挙に解決した全
く新しい澱粉糊といえる。As described above, the starch paste of the present invention can be said to be a completely new starch paste which at once has solved the problems of the starch paste conventionally produced industrially.
【００２４】本発明で用いる酸無水物としては、置換基
のないものカルボン酸の対称型無水物であり、好ましく
は無水フタル酸、無水酢酸、無水琥珀酸、無水プロピオ
ン酸から選ばれた１種以上のものである。特に好ましく
は無水フタル酸は安定性もよく、安価である。The acid anhydride used in the present invention is an unsubstituted carboxylic acid symmetrical anhydride, preferably one selected from phthalic anhydride, acetic anhydride, succinic anhydride and propionic anhydride. That's all. Particularly preferably, phthalic anhydride has good stability and is inexpensive.
【００２５】また、本発明で用いる塩化アシル化合物と
しては、カルボキシル原子団の中のヒドロキシル原子団
を塩素で置換した化合物であり、好ましくは塩化フタロ
イル、塩化アセチルから選ばれた１種以上のものであ
る。The acyl chloride compound used in the present invention is a compound obtained by substituting a hydroxyl group in a carboxyl group with chlorine, and is preferably at least one compound selected from phthaloyl chloride and acetyl chloride. is there.
【００２６】本発明で使用する澱粉は、米澱粉、小麦澱
粉、コーンスターチ、ポテトスターチ、タピオカスター
チ、甘藷澱粉などの澱粉であれば何を用いても良い。更
に、各種天然澱粉を化学的に処理した加工澱粉、例えば
エーテル化澱粉、エステル化澱粉、酸処理澱粉、酸化澱
粉、加水分解された澱粉等も、ここでいう澱粉の定義に
包含される。The starch used in the present invention may be any starch such as rice starch, wheat starch, corn starch, potato starch, tapioca starch and sweet potato starch. Further, processed starches obtained by chemically treating various natural starches, such as etherified starch, esterified starch, acid-treated starch, oxidized starch, and hydrolyzed starch, are also included in the definition of starch.
【００２７】アルカリとしては、ＮａＯＨ、ＫＯＨ、Ｃ
ａ（ＯＨ）２から選ばれたアルカリ金属又はアルカリ土
類金属に属する水酸化アルカリの水溶液、または水溶液
がアルカリ性を呈する化合物の単独物又は混合物を用い
ることができ、実用的には、カセイソーダの１０〜５０
％濃度のものが用いられる。もちろんこの濃度は、一般
的なものであって、この範囲を越えたとしても何等問題
はなく単に工業的な取扱い上の点から入っているにすぎ
ない。アルカリの添加量は、固形分として１〜５％であ
り、これも一般的な範囲であり、澱粉の濃度、種類によ
っては、この範囲を越えたとしても本発明に対して影響
は無い。As the alkali, NaOH, KOH, C
a (OH) 2 It is possible to use an aqueous solution of an alkali hydroxide belonging to an alkali metal or an alkaline earth metal selected from the group consisting of alkali metal or alkaline earth metal, or a single or a mixture of compounds in which the aqueous solution exhibits alkalinity. ~ 50
% Concentration is used. Of course, this concentration is a general one, and even if it exceeds this range, there is no problem and it is merely included in terms of industrial handling. The amount of alkali added is 1 to 5% as a solid content, which is also in a general range, and depending on the starch concentration and type, exceeding this range does not affect the present invention.
【００２８】尚、本発明の澱粉糊に、防腐剤、防黴剤或
いはその他公知の添加剤を添加してもよい。It should be noted that a preservative, a fungicide or other known additives may be added to the starch paste of the present invention.
【００２９】[0029]
【実施例】実施例１ コンスターチ（三和澱粉工業株式会社性）２００ｇに水
７５０ｇ入れ、充分攪拌し、懸濁させた。これにカセイ
ソーダ５０％水溶液を２０ｇを攪拌しながら室温で添加
し糊化させた。添加終了後、引続き攪拌して充分に糊化
を促し、次に無水フタル酸を添加して中和し、ｐＨ６〜
７に調整した。中和終了後、ホルマリン及び防黴剤を添
加した。Example 1 750 g of water was added to 200 g of constarch (manufactured by Sanwa Starch Kogyo Co., Ltd.), sufficiently stirred and suspended. 20 g of a 50% aqueous solution of sodium hydroxide was added thereto at room temperature with stirring to gelatinize. After the addition is completed, the mixture is continuously stirred to sufficiently promote gelatinization, and then phthalic anhydride is added to neutralize the mixture.
Adjusted to 7. After the neutralization was completed, formalin and a fungicide were added.
【００３０】実施例２ 実施例１と同様の操作でアルカリ糊化させたものに、中
和剤として無水酢酸を使用し、ｐＨ６〜７に調整した、
その他の添加剤は実施例１と同様とした。Example 2 An alkali gelatinized gelatin was prepared in the same manner as in Example 1 and adjusted to pH 6 to 7 using acetic anhydride as a neutralizing agent.
Other additives were the same as in Example 1.
【００３１】実施例３ 実施例１の無水フタル酸を無水マレイン酸としたものを
使用して、その他は実施例１と同様の操作を行った。Example 3 The same operation as in Example 1 was carried out except that phthalic anhydride in Example 1 was replaced with maleic anhydride.
【００３２】実施例４ 実施例１の無水フタル酸を無水琥珀酸としたものを使用
して、その他は実施例１と同様の操作を行った。Example 4 The same operation as in Example 1 was carried out except that the phthalic anhydride of Example 1 was changed to succinic anhydride.
【００３３】実施例５ 実施例１の無水フタル酸を無水プロピオン酸としたもの
を使用して、その他は実施例１と同様の操作を行った。Example 5 The same operation as in Example 1 was carried out except that phthalic anhydride in Example 1 was changed to propionic anhydride.
【００３４】実施例６ 実施例１と同様の操作でアルカリ糊化させたものに、中
和剤として塩化アセチルを使用し、ｐＨ６〜７に調整し
た、その他の添加剤は実施例１と同様とした。Example 6 The same procedure as in Example 1 was carried out, except that acetyl chloride was used as a neutralizing agent and the pH was adjusted to 6 to 7 to the alkali gelatinized gelatin in the same manner as in Example 1. did.
【００３５】実施例７ 実施例１と同様の操作でアルカリ糊化させたものに、中
和剤としてフタル酸塩化物（塩化フタロイル）を使用
し、ｐＨ６〜７に調整した、その他の添加剤は実施例１
と同様とした。Example 7 A phthalic acid chloride (phthaloyl chloride) was used as a neutralizing agent to adjust the pH to 6 to 7 to the alkali gelatinized by the same operation as in Example 1, and the other additives were Example 1
The same as above.
【００３６】比較例 中和する酸以外はすべて実施例と同様にして製造した。
酸としては硝酸、塩酸、硫酸、クエン酸、リンゴ酸、酢
酸を使用し、比較例とした。COMPARATIVE EXAMPLE All of the preparations were carried out in the same manner as in the examples except for the acid to be neutralized.
As the acid, nitric acid, hydrochloric acid, sulfuric acid, citric acid, malic acid, and acetic acid were used as comparative examples.
【００３７】以上、得られた実施例による澱粉糊及び比
較例による澱粉糊の接着性能、貯蔵安定性、凍結安定
性、紫外線変色を比較検討した。結果を次の表１に示
す。As described above, the adhesive performance, storage stability, freezing stability and ultraviolet discoloration of the obtained starch paste according to the example and the starch paste according to the comparative example were compared and examined. The results are shown in Table 1 below.
【００３８】[0038]
【表１】 [Table 1]
【００３９】表１に示した通り、有機酸の酸無水物又は
塩化アシル化合物によって中和された澱粉糊は、従来の
アルカリ糊化による澱粉糊寄りも接着性能の優れた、貯
蔵安定性の良い、被膜が紫外線の暴露により劣化変色し
ない澱粉糊が得られた。As shown in Table 1, the starch paste neutralized with an acid anhydride of an organic acid or an acyl chloride compound has excellent adhesion performance even with the conventional starch paste by alkali gelatinization, and has good storage stability. As a result, a starch paste was obtained in which the coating did not deteriorate or discolor due to exposure to ultraviolet rays.
【００４０】以上のように、有機酸の酸無水物又は塩化
アシル化合物によって中和された澱粉糊、及び中和は硝
酸以外の酸で行い更に有機塩酸によって安定化された澱
粉糊は、凍結安定性及び貯蔵安定性に優れ、特に窒素を
含まない無水フタル酸又はフタル酸塩化物のような有機
酸の酸無水物又は塩化アシル化合物を選ぶことで、接着
剤の被膜が紫外線により劣化着色せず、接着性能に優れ
た等の特徴を有し、しかも工業的に大規模に一定の品質
を容易に供給でき、製造工程が簡便・容易であり、製造
コストも大幅なアップにはならない澱粉糊を得ることが
出来る。As described above, starch paste neutralized with an acid anhydride of an organic acid or an acyl chloride compound, and starch paste neutralized with an acid other than nitric acid and further stabilized with organic hydrochloric acid are freeze-stabilized. By selecting an acid anhydride or an acyl chloride compound of an organic acid such as phthalic anhydride or phthalic acid chloride which does not contain nitrogen, the adhesive coating is not deteriorated and colored by ultraviolet rays. Starch glue, which has features such as excellent adhesive performance, can easily supply a constant quality on a large scale industrially, the manufacturing process is simple and easy, and the manufacturing cost does not increase significantly. Can be obtained.
【００４１】[0041]
【発明の効果】本発明は以上説明したとおり、澱粉糊の
安定性が向上し、凍結安定性及び貯蔵安定性に優れ、接
着剤の被膜が紫外線により劣化着色せず、接着性能に優
れた澱粉糊を得ることができる。Industrial Applicability As described above, the present invention improves the stability of starch paste, has excellent freezing stability and storage stability, does not cause the adhesive coating to be degraded and colored by ultraviolet rays, and has excellent adhesive performance. Glue can be obtained.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１０年８月１８日（１９９８．８．１
８）[Submission date] August 18, 1998 (1998.8.1)
8)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項２[Correction target item name] Claim 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１４】本請求項２に記載された発明に係る澱粉糊
は、請求項１に記載された有機酸の酸無水物が、無水フ
タル酸、無水酢酸、無水マレイン酸、無水琥珀酸、無水
プロピオン酸から選ばれた１種以上のものである。[0014] In the starch paste according to the second aspect of the present invention, the acid anhydride of the organic acid according to the first aspect is characterized in that phthalic anhydride, acetic anhydride, maleic anhydride, succinic anhydride and propion anhydride are used. One or more selected from acids.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２４[Correction target item name] 0024
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００２４】本発明で用いる酸無水物としては、置換基
のないものカルボン酸の対称型無水物であり、好ましく
は無水フタル酸、無水酢酸、無水マレイン酸、無水琥珀
酸、無水プロピオン酸から選ばれた１種以上のものであ
る。特に好ましくは無水フタル酸は安定性もよく、安価
である。The acid anhydride used in the present invention is an unsubstituted carboxylic acid symmetrical anhydride, and is preferably selected from phthalic anhydride, acetic anhydride, maleic anhydride, succinic anhydride and propionic anhydride. One or more types. Particularly preferably, phthalic anhydride has good stability and is inexpensive.
Claims (5)
糊化させた後、中和剤で中和させてなる澱粉糊におい
て、 前記中和剤が、有機酸の酸無水物又は塩化アシル化合物
であることを特徴とする澱粉糊。1. A starch paste obtained by suspending starch in water, gelatinizing by adding an alkali, and neutralizing with a neutralizing agent, wherein the neutralizing agent is an acid anhydride of an organic acid or chloride. A starch paste, which is an acyl compound.
酸、無水酢酸、無水琥珀酸、無水プロピオン酸から選ば
れた１種以上のものであることを特徴とする請求項１に
記載の澱粉糊。2. The method according to claim 1, wherein the acid anhydride of the organic acid is at least one selected from phthalic anhydride, acetic anhydride, succinic anhydride, and propionic anhydride. Starch paste.
フタロイル、塩化アセチルから選ばれた１種以上のもの
であることを特徴とする請求項１に記載の澱粉糊。3. The starch paste according to claim 1, wherein the acyl chloride compound of the organic acid is at least one selected from phthaloyl chloride and acetyl chloride.
Ｈ、ＫＯＨ、Ｃａ（ＯＨ）２から選ばれたアルカリ金属
又はアルカリ土類金属に属する水酸化アルカリの水溶
液、または水溶液がアルカリ性を呈する化合物の単独物
又は混合物であることを特徴とする請求項１に記載の澱
粉糊。4. The method according to claim 1, wherein the alkali added to the starch is NaO.
2. An aqueous solution of an alkali hydroxide belonging to an alkali metal or an alkaline earth metal selected from H, KOH and Ca (OH) 2 , or the aqueous solution is a single compound or a mixture of compounds exhibiting alkalinity. 2. The starch paste according to item 1.
他公知の添加剤を添加してなることを特徴とする請求項
１〜４の何れかに記載の澱粉糊。5. The starch paste according to claim 1, wherein a preservative, a fungicide or other known additives are added to the starch paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21526798A JP4043106B2 (en) | 1998-07-30 | 1998-07-30 | Starch paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21526798A JP4043106B2 (en) | 1998-07-30 | 1998-07-30 | Starch paste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000044906A true JP2000044906A (en) | 2000-02-15 |
| JP4043106B2 JP4043106B2 (en) | 2008-02-06 |
Family
ID=16669488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21526798A Expired - Fee Related JP4043106B2 (en) | 1998-07-30 | 1998-07-30 | Starch paste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4043106B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735260A (en) * | 2018-11-19 | 2019-05-10 | 天津科技大学 | Highly viscous amylum adhesive of heat resistance and preparation method thereof |
-
1998
- 1998-07-30 JP JP21526798A patent/JP4043106B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735260A (en) * | 2018-11-19 | 2019-05-10 | 天津科技大学 | Highly viscous amylum adhesive of heat resistance and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4043106B2 (en) | 2008-02-06 |
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