JPH0797523A - Acetalized pva-containing synthetic resin emulsion composition - Google Patents
Acetalized pva-containing synthetic resin emulsion compositionInfo
- Publication number
- JPH0797523A JPH0797523A JP24443893A JP24443893A JPH0797523A JP H0797523 A JPH0797523 A JP H0797523A JP 24443893 A JP24443893 A JP 24443893A JP 24443893 A JP24443893 A JP 24443893A JP H0797523 A JPH0797523 A JP H0797523A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- resin emulsion
- emulsion composition
- acetalized pva
- pva
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アセタール化ＰＶＡ
（アセタール化ポリビニルアルコール）を含有すること
を特徴とする合成樹脂エマルジョン組成物に関する。更
に詳しくはアセタール化ＰＶＡを重合用乳化剤として使
用するか、または後添加した耐水性に優れた合成樹脂エ
マルジョン組成物に関する。FIELD OF THE INVENTION The present invention relates to acetalized PVA.
The present invention relates to a synthetic resin emulsion composition containing (acetalized polyvinyl alcohol). More specifically, it relates to a synthetic resin emulsion composition having excellent water resistance, in which acetalized PVA is used as an emulsifying agent for polymerization, or added later.
【０００２】[0002]
【従来の技術】合成樹脂エマルジョンは接着剤、粘着
剤、塗料、繊維・紙・皮革の加工、各種材料のバインダ
ー、セメントモルタル用混和材等に広く使用されている
が、各種用途における必要物性の中で耐久性、特に耐水
性の要求が多い。合成樹脂エマルジョンは製造する際に
分散剤、乳化剤を必要とするが、それらによる耐水性低
下の問題があり、通常、乳化剤の重合度、使用量等を調
整して耐水性をコントロールしている。また、架橋等に
よって耐水性を向上する方法もある。しかしながら、こ
れらの方法だけでは十分な耐水性を持つエマルジョンは
得られず、また、作業性や経済性の面でも不利である。2. Description of the Related Art Synthetic resin emulsions are widely used in adhesives, adhesives, paints, textile / paper / leather processing, binders for various materials, and admixtures for cement mortar. Among them, there are many demands for durability, especially water resistance. Synthetic resin emulsions require a dispersant and an emulsifier at the time of production, but there is a problem of deterioration of water resistance due to them, and the water resistance is usually controlled by adjusting the degree of polymerization of the emulsifier and the amount used. There is also a method of improving water resistance by cross-linking or the like. However, an emulsion having sufficient water resistance cannot be obtained by these methods alone, and it is also disadvantageous in terms of workability and economy.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、十分
な耐水性を持ち、かつ、比較的容易に製造可能な合成樹
脂エマルジョン組成物を提供しようとするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a synthetic resin emulsion composition which has sufficient water resistance and can be manufactured relatively easily.
【０００４】[0004]
【課題を解決する為の手段】本発明者らは、種々検討の
結果、アセタール化ＰＶＡを合成樹脂エマルジョンに含
有させることによって上記の目的を達成できることを見
出し本発明に到達した。As a result of various investigations, the present inventors have found that the above object can be achieved by incorporating acetalized PVA in a synthetic resin emulsion, and arrived at the present invention.
【０００５】すなわち、本発明は、アセタール化ＰＶＡ
を含有することを特徴とする合成樹脂エマルジョン組成
物である。また、合成樹脂エマルジョンがポリ酢酸ビニ
ル系エマルジョンである上記の合成樹脂エマルジョン組
成物である。さらに、本発明は、アセタール化ＰＶＡの
含有量が合成樹脂エマルジョンの固形分１００重量部に
対して０．１〜２０重量部である上記の合成樹脂エマル
ジョン組成物である。That is, the present invention relates to acetalized PVA.
It is a synthetic resin emulsion composition characterized by containing. The synthetic resin emulsion composition is the above-mentioned synthetic resin emulsion composition in which the synthetic resin emulsion is a polyvinyl acetate emulsion. Furthermore, the present invention is the above synthetic resin emulsion composition, wherein the content of the acetalized PVA is 0.1 to 20 parts by weight based on 100 parts by weight of the solid content of the synthetic resin emulsion.
【０００６】以下、本発明を詳しく説明する。本発明に
おける合成樹脂エマルジョンとは、二重結合を有する単
独または２種類以上のモノマーを通常の乳化重合によっ
て得られる単独重合体または共重合体のエマルジョンで
ある。The present invention will be described in detail below. The synthetic resin emulsion in the present invention is an emulsion of a homopolymer or a copolymer obtained by a usual emulsion polymerization of a single monomer having a double bond or two or more kinds of monomers.
【０００７】二重結合を有するモノマーとしては、例え
ば、脂肪酸ビニル（酢酸ビニル等）、（メタ）クリル酸
エステル類〔（メタ）クリル酸のメチル、エチル、２−
エチルヘキシルエステル等〕、オレフィン類（エチレン
等）、含ハロゲン系単量体（塩化ビニル、弗化ビニル、
塩化ビニリデン、弗化ビニリデン等）、芳香族を有する
単量体類（スチレン、アルキル置換スチレン等）、アル
キルビニルエーテル類、アクリルアミド類、重合性不飽
和カルボン酸単量体、例えば、一塩基酸単量体〔アクリ
ル酸、（メタ）クリル酸、（イソ）クリル酸、（イソ）
クロトン酸〕、多塩基酸単量体（マレイン酸、フマル
酸、イタコン酸）及び、その部分エステル、重合性多塩
基酸無水物（無水マレイン酸等）、ジエン類（ブタジエ
ン、クロロプレン等）が挙げられる。As the monomer having a double bond, for example, fatty acid vinyl (vinyl acetate etc.), (meth) acrylic acid esters [(meth) acrylic acid methyl, ethyl, 2-
Ethylhexyl ester, etc.], olefins (ethylene, etc.), halogen-containing monomers (vinyl chloride, vinyl fluoride,
Vinylidene chloride, vinylidene fluoride, etc.), aromatic monomers (styrene, alkyl-substituted styrene, etc.), alkyl vinyl ethers, acrylamides, polymerizable unsaturated carboxylic acid monomers, for example, monobasic acid monomer Body [acrylic acid, (meth) acrylic acid, (iso) acrylic acid, (iso)
Crotonic acid], polybasic acid monomers (maleic acid, fumaric acid, itaconic acid) and partial esters thereof, polymerizable polybasic acid anhydrides (maleic anhydride, etc.), dienes (butadiene, chloroprene, etc.) To be
【０００８】本発明におけるポリ酢酸ビニル系エマルジ
ョンとは酢酸ビニル単独または酢酸ビニルと他の単量体
との共重合体であり、例えば、酢酸ビニル重合体エマル
ジョン、エチレン−酢酸ビニル共重合体エマルジョン等
である。The polyvinyl acetate emulsion in the present invention is a vinyl acetate homopolymer or a copolymer of vinyl acetate and another monomer, for example, a vinyl acetate polymer emulsion, an ethylene-vinyl acetate copolymer emulsion and the like. Is.
【０００９】本発明で用いられる乳化剤としては、例え
ば、完全または部分鹸化ＰＶＡ（完全または部分鹸化ポ
リビニルアルコール）、メチルセルロース、ヒドロキシ
エチルセルロース等の水溶性高分子、ポリオキシエチレ
ンアルキルエーテル、ポリオキシエチレンアルキルフェ
ニルエーテル、ポリオキシエチレンポリオキシプロピレ
ンブロックコポリマー等の非イオン界面活性剤、ラウリ
ル硫酸エステル塩、アルキルベンゼンスルホン酸塩等の
アニオン性界面活性剤等が挙げれ、これらは単独もしく
は併用して使用される。Examples of the emulsifier used in the present invention include completely or partially saponified PVA (fully or partially saponified polyvinyl alcohol), water-soluble polymers such as methyl cellulose and hydroxyethyl cellulose, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl. Examples thereof include nonionic surfactants such as ethers and polyoxyethylene polyoxypropylene block copolymers, anionic surfactants such as lauryl sulfate ester salts and alkylbenzene sulfonates, and these are used alone or in combination.
【００１０】本発明で用いられる重合開始剤としては、
例えば、過硫酸アンモニウム等の過硫酸塩、過酸化水
素、各種有機過酸化物等が挙げられる。また、これらと
還元剤を組み合せたレドックス系開始剤も使用される。The polymerization initiator used in the present invention includes
Examples thereof include persulfates such as ammonium persulfate, hydrogen peroxide, and various organic peroxides. Further, a redox type initiator in which these are combined with a reducing agent is also used.
【００１１】重合方法としては、公知の乳化重合方法が
用いられ、例えば、モノマー逐次添加法、一括仕込法、
二段重合法等が挙げられるが特に限定はしない。As the polymerization method, a known emulsion polymerization method is used. For example, a monomer sequential addition method, a batch charging method,
A two-stage polymerization method and the like can be mentioned, but the method is not particularly limited.
【００１２】本発明において十分な耐水性を得るために
使用されるアセタール化ＰＶＡは、部分もしくは完全鹸
化ＰＶＡを酸等を触媒として各種アルデヒド、例えば、
ホルムアルデヒド、アセトアルデヒド、ブチルアルデヒ
ド等と反応させたものであり、１、３グリコール結合の
分子内アセタール化、分子間アセタール化、１、２グリ
コール結合の分子内アセタール化等の構造を有する。The acetalized PVA used to obtain sufficient water resistance in the present invention includes partially or completely saponified PVA with various aldehydes, for example, using an acid or the like as a catalyst.
It is reacted with formaldehyde, acetaldehyde, butyraldehyde, etc., and has a structure such as intramolecular acetalization of 1,3 glycol bond, intermolecular acetalization, and intramolecular acetalization of 1,2 glycol bond.
【００１３】上記アセタール化ＰＶＡの使用量は特に限
定しないが合成樹脂エマルジョンの固形分１００重量部
に対して、０．１〜２０重量部が適当であり、好ましく
は１〜１０重量部である。使用量が０．１重量部より少
ない場合は十分な耐水性が得られにくく、また２０重量
部より多い場合はエマルジョンの粘度やエマルジョンの
固形分が工業的用途の面から不適当となる場合がある。
また経済的にも不利である。The amount of the acetalized PVA used is not particularly limited, but is appropriately 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, based on 100 parts by weight of the solid content of the synthetic resin emulsion. If the amount used is less than 0.1 parts by weight, sufficient water resistance cannot be obtained, and if the amount used is more than 20 parts by weight, the viscosity of the emulsion and the solid content of the emulsion may be unsuitable from the viewpoint of industrial use. is there.
It is also economically disadvantageous.
【００１４】上記のアセタール化ＰＶＡは重合用乳化剤
として使用する場合は他の乳化剤と同様に使用すること
が出来、また、エマルジョンに後添加する場合は適当な
濃度の水溶液を作製して添加すれば良い。When the above-mentioned acetalized PVA is used as an emulsifying agent for polymerization, it can be used in the same manner as other emulsifying agents, and when it is added later to an emulsion, an aqueous solution having an appropriate concentration is prepared and added. good.
【００１５】[0015]
【実施例】次に、実施例により本発明をさらに具体的に
説明する。尚、「部」及び「％」は特にことわりのない
限りそれぞれ「重量部」及び「重量％」を示す。EXAMPLES Next, the present invention will be described more specifically by way of examples. In addition, "parts" and "%" represent "parts by weight" and "% by weight", respectively, unless otherwise specified.
【００１６】実施例１ エチレン−酢酸ビニルの共重合において、乳化剤として
重合度５００、鹸化度８８モル％の部分鹸化ＰＶＡ（商
品名Ｂ−０５、電気化学工業（株）製）を全モノマーに
対して４重量％、アセタール化ＰＶＡとして重合度７７
０、鹸化度８８モル％、アセタール化度５モル％のアセ
タール化ＰＶＡ（商品名ＫＷ−１、積水化学工業（株）
製）を全モノマーに対して１重量％使用し、乳化重合し
て固形分５５％のエチレン−酢酸ビニル共重合体エマル
ジョン組成物を作製し、得られたエマルジョンについて
耐水性試験を行った。Example 1 In ethylene-vinyl acetate copolymerization, partially saponified PVA (trade name B-05, manufactured by Denki Kagaku Kogyo Co., Ltd.) having a degree of polymerization of 500 and a degree of saponification of 88 mol% was used as an emulsifier for all monomers. 4% by weight, the degree of polymerization as acetalized PVA is 77
0, saponification degree 88 mol%, acetalization degree 5 mol% acetalized PVA (trade name KW-1, Sekisui Chemical Co., Ltd.)
Was used in an amount of 1% by weight based on all the monomers, and emulsion polymerization was carried out to prepare an ethylene-vinyl acetate copolymer emulsion composition having a solid content of 55%. The obtained emulsion was subjected to a water resistance test.
【００１７】比較例１ アセタール化ＰＶＡのかわりに、乳化剤に使用したもの
と同じ部分鹸化ＰＶＡを使用した以外は実施例１と同様
にして固形分５５％のエチレン−酢酸ビニル共重合体エ
マルジョン組成物を作製し、耐水性試験を行った。Comparative Example 1 An ethylene-vinyl acetate copolymer emulsion composition having a solid content of 55% was prepared in the same manner as in Example 1 except that the same partially saponified PVA as that used in the emulsifier was used instead of the acetalized PVA. Was prepared and a water resistance test was conducted.
【００１８】実施例２〜５ 乳化剤の種類、量、モノマーの種類を変えて実施例１と
同様にエマルジョン組成物を作製し、耐水性試験を行っ
た。Examples 2 to 5 Emulsion compositions were prepared in the same manner as in Example 1 except that the type and amount of emulsifier and the type of monomer were changed, and a water resistance test was conducted.
【００１９】比較例２〜３ 乳化剤の種類、量、モノマーの種類を変えて実施例１と
同様にエマルジョン組成物を作製し、耐水性試験を行っ
た。Comparative Examples 2 to 3 An emulsion composition was prepared in the same manner as in Example 1 except that the type and amount of emulsifier and the type of monomer were changed, and a water resistance test was conducted.
【００２０】実施例１〜５及び比較例１〜３の試験結果
を表１に示す。Table 1 shows the test results of Examples 1 to 5 and Comparative Examples 1 to 3.
【００２１】[0021]
【表１】 [Table 1]
【００２２】実施例６ 比較例１のエマルジョン組成物１００重量部に対して、
重合度７７０、鹸化度８８モル％モル％、アセタール化
度５モル％のアセタール化ＰＶＡ（商品名ＫＷ−１、、
積水化学工業（株）製）の２０％水溶液２０重量部を撹
拌しながら添加し、得られたエマルジョン組成物につい
て耐水性試験を行った。Example 6 To 100 parts by weight of the emulsion composition of Comparative Example 1,
Acetalized PVA having a degree of polymerization of 770, a degree of saponification of 88 mol% and a degree of acetalization of 5 mol% (trade name KW-1,
20 parts by weight of a 20% aqueous solution of Sekisui Chemical Co., Ltd. was added with stirring, and a water resistance test was conducted on the obtained emulsion composition.
【００２３】実施例７ 比較例３のエマルジョン組成物１００重量部に対して、
重合度７７０、鹸化度８８モル％モル％、アセタール化
度５モル％のアセタール化ＰＶＡ（商品名ＫＷ−１、、
積水化学工業（株）製）の２０％水溶液２０重量部を撹
拌しながら添加し、得られたエマルジョン組成物につい
て耐水性試験を行った。Example 7 For 100 parts by weight of the emulsion composition of Comparative Example 3,
Acetalized PVA having a degree of polymerization of 770, a degree of saponification of 88 mol% and a degree of acetalization of 5 mol% (trade name KW-1,
20 parts by weight of a 20% aqueous solution of Sekisui Chemical Co., Ltd. was added with stirring, and a water resistance test was conducted on the obtained emulsion composition.
【００２４】実施例６〜７の試験結果を表２に示す。Table 2 shows the test results of Examples 6 to 7.
【００２５】[0025]
【表２】 [Table 2]
【００２６】[0026]
【発明の効果】本発明によれば、合成樹脂エマルジョン
にアセタール化ＰＶＡを含有させることにより合成樹脂
エマルジョンの各種用途分野において使用部分の耐水性
が向上する。INDUSTRIAL APPLICABILITY According to the present invention, by incorporating acetalized PVA in the synthetic resin emulsion, the water resistance of the portion used in various fields of use of the synthetic resin emulsion is improved.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平野 秀樹 千葉県市原市五井南海岸６番地 電気化学 工業株式会社千葉工場内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hideki Hirano 6 Goi Minamikaigan, Ichihara City, Chiba Denki Kagaku Kogyo Co., Ltd. Chiba Factory
Claims (3)
徴とする合成樹脂エマルジョン組成物。1. A synthetic resin emulsion composition comprising acetalized PVA.
系エマルジョンである請求項１記載の合成樹脂エマルジ
ョン組成物。2. The synthetic resin emulsion composition according to claim 1, wherein the synthetic resin emulsion is a polyvinyl acetate emulsion.
エマルジョンの固形分１００重量部に対して０．１〜２
０重量部である請求項１または請求項２記載の合成樹脂
エマルジョン組成物。3. The content of acetalized PVA is 0.1 to 2 with respect to 100 parts by weight of the solid content of the synthetic resin emulsion.
The synthetic resin emulsion composition according to claim 1 or 2, which is 0 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24443893A JPH0797523A (en) | 1993-09-30 | 1993-09-30 | Acetalized pva-containing synthetic resin emulsion composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24443893A JPH0797523A (en) | 1993-09-30 | 1993-09-30 | Acetalized pva-containing synthetic resin emulsion composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0797523A true JPH0797523A (en) | 1995-04-11 |
Family
ID=17118660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24443893A Pending JPH0797523A (en) | 1993-09-30 | 1993-09-30 | Acetalized pva-containing synthetic resin emulsion composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0797523A (en) |
-
1993
- 1993-09-30 JP JP24443893A patent/JPH0797523A/en active Pending
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