JPS6341507A - Polymerization method - Google Patents
Polymerization methodInfo
- Publication number
- JPS6341507A JPS6341507A JP18418986A JP18418986A JPS6341507A JP S6341507 A JPS6341507 A JP S6341507A JP 18418986 A JP18418986 A JP 18418986A JP 18418986 A JP18418986 A JP 18418986A JP S6341507 A JPS6341507 A JP S6341507A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- additives
- aqueous medium
- added
- suspension
- 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
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims description 17
- 239000000654 additive Substances 0.000 claims abstract description 40
- 239000012736 aqueous medium Substances 0.000 claims abstract description 19
- 239000000178 monomer Substances 0.000 claims abstract description 14
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 238000007720 emulsion polymerization reaction Methods 0.000 claims abstract description 3
- 238000010557 suspension polymerization reaction Methods 0.000 claims abstract description 3
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 12
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 7
- -1 etc. Substances 0.000 abstract description 6
- 239000003505 polymerization initiator Substances 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 239000002270 dispersing agent Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 108010010803 Gelatin Proteins 0.000 abstract description 2
- 229920000159 gelatin Polymers 0.000 abstract description 2
- 239000008273 gelatin Substances 0.000 abstract description 2
- 235000019322 gelatine Nutrition 0.000 abstract description 2
- 235000011852 gelatine desserts Nutrition 0.000 abstract description 2
- 229920000609 methyl cellulose Polymers 0.000 abstract description 2
- 239000001923 methylcellulose Substances 0.000 abstract description 2
- 235000010981 methylcellulose Nutrition 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract 1
- RGBXDEHYFWDBKD-UHFFFAOYSA-N propan-2-yl propan-2-yloxy carbonate Chemical compound CC(C)OOC(=O)OC(C)C RGBXDEHYFWDBKD-UHFFFAOYSA-N 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- BEQKKZICTDFVMG-UHFFFAOYSA-N 1,2,3,4,6-pentaoxepane-5,7-dione Chemical compound O=C1OOOOC(=O)O1 BEQKKZICTDFVMG-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野コ 本発明は重合性単量体の重合方法に関する。[Detailed description of the invention] [Industrial application fields] The present invention relates to a method for polymerizing polymerizable monomers.
更に詳しくは、塩化ビニル等のビニル系単量体を懸濁又
は、乳化重合する方法に関する。More specifically, the present invention relates to a method of suspending or emulsion polymerizing vinyl monomers such as vinyl chloride.
［従来の技術］
重合性単量体、例えば、塩化ビニル単量体を水性媒体を
用いて重合するいわゆる懸濁重合方法に於いては、重合
系に種々の添加剤を添加して行なわれている。[Prior Art] In the so-called suspension polymerization method in which a polymerizable monomer, such as a vinyl chloride monomer, is polymerized using an aqueous medium, various additives are added to the polymerization system. There is.
これらの添加剤は、例えば、分散剤、重合開始剤、懸濁
安定剤、品質改良剤等々であり、これら添加剤の形状は
通常粉末状、フレーク状の固体状物、液状物等種々の形
状をしており、夫々必要量を計量し例えば、重合釜の仕
込口から投入し重合系に添加している。These additives include, for example, dispersants, polymerization initiators, suspension stabilizers, quality improvers, etc., and these additives usually come in various shapes such as powder, flake solids, and liquids. The required amount of each is measured and added to the polymerization system by charging it, for example, from the charging port of the polymerization kettle.
［発明が解決しようとする問題点］
この様な方法での重合系への添加剤の添加は、添加剤が
液状物ではさほど問題となることはないが、添加剤が粉
末状物の場合は、添加の際これらが重合器の機器表面に
付着したり、時には外部に飛散したりして、定量的に、
安定な状態で仕込むことが困難な場合が多い。又、これ
らの問題を解決する方法として添加剤をあらかじめ有機
溶媒に溶解して重合系に添加する方法も採用されている
が、この方法も必然的に溶媒コストが加算され、又、重
合終了時、溶媒を含んだ排水の処理の問題が生ずるなど
その効果の割には必ずしも有効な方法ではない。[Problems to be Solved by the Invention] Adding additives to a polymerization system by such a method does not pose much of a problem when the additives are in the form of liquids, but when the additives are in the form of powders, , when added, these adhere to the equipment surface of the polymerization vessel, or sometimes scatter to the outside, quantitatively,
It is often difficult to prepare in stable conditions. In addition, as a method to solve these problems, a method has been adopted in which additives are dissolved in an organic solvent in advance and added to the polymerization system, but this method also inevitably adds solvent costs and also However, it is not necessarily an effective method considering its effectiveness, as problems arise in the treatment of wastewater containing solvents.
［問題点を解決するだめの手段］
本発明者らは、以上の諸問題点を考慮して、重合時の各
種操作方法を種々検討した結果、重合の際用いる添加剤
を成る種の形態にすることにより、きわめて能率的に重
合を行なうことができることを見い出し本発明を完成し
た。[Means to Solve the Problems] Taking the above-mentioned problems into consideration, the inventors of the present invention have investigated various operating methods during polymerization, and as a result, they have determined that the additives used during polymerization are in the form of seeds. The present invention has been completed based on the discovery that polymerization can be carried out extremely efficiently by the following steps.
即ち、本発明の目的は、重合性単量体を懸濁又は、乳化
重合するに際し、重合に必要な添加剤の一部又は全部を
あらかじめ水性媒体に混合したものを重合系に添加し重
合を行なうことを特徴とする重合方法を提供することに
ある。That is, the purpose of the present invention is to carry out suspension or emulsion polymerization of polymerizable monomers by adding a mixture of some or all of the additives necessary for polymerization to the polymerization system in advance in an aqueous medium. An object of the present invention is to provide a polymerization method characterized by the following.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明を有効に適応し得る重合系は、水系媒体を用いて
重合を行なう系で、例えば、塩化ビニル単ｍ体単独又は
、これと共重合可能な単量体との重合で用いる、懸濁重
合法、乳化重合法等である。A polymerization system to which the present invention can be effectively applied is a system in which polymerization is carried out using an aqueous medium, such as a suspension used in the polymerization of vinyl chloride alone or a monomer copolymerizable therewith. These include polymerization method, emulsion polymerization method, etc.
これらの重合法に於いて、重合系に添加する添加剤は、
前述のように、分散剤、重合開始剤、懸濁安定剤、品質
改良剤（たとえばメチルセルロース、ヒドロキシエチル
セルロース、ヒドロキシプロピルセルロース、ヒドロキ
シプロピルメチルセルロース、部分ケン化ポリビニルア
ルコール、アクリル酸系重合物、ゼラチン、ソルビタン
エステル系、ポリエステル系重合物、ｔ−ブチルパーオ
キシネオデカネート、α−クミルパーオキシネオデカネ
ート、ｔ−ブチルパーオキシピバレート、ジイソプロピ
ルパーオキシジカーボネート、ジェトキシエチルパーオ
キシジカーボネート）があるが、これらは目的とする重
合体に応じてその種類、量、添加時期が決められる。通
常は重合性単量体１００重量部に対して夫々０．０１〜
０．１重量部が使用される。In these polymerization methods, the additives added to the polymerization system are:
As mentioned above, dispersants, polymerization initiators, suspension stabilizers, quality improvers (e.g. methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, partially saponified polyvinyl alcohol, acrylic acid polymers, gelatin, sorbitan) ester type, polyester type polymer, t-butyl peroxy neodecanate, α-cumyl peroxy neodecanate, t-butyl peroxy pivalate, diisopropyl peroxy dicarbonate, jetoxyethyl peroxy dicarbonate). However, the type, amount, and timing of addition are determined depending on the target polymer. Usually 0.01 to 0.01 to 100 parts by weight of the polymerizable monomer
0.1 part by weight is used.
本発明では、これら添加剤をあらかじめ水性媒体に混合
し、この混合したものを重合系に添加して用いるが、こ
の際、水性媒体と全添加剤との割合は重量比で９５１５
〜７０／３０で、通常スラリー状である。（ここで言う
「水性媒体」は水を主成分とするものである。）
用いる添加剤の種類によっては、水性媒体にこれを混合
した場合、良好な（均一な）分散状態が得られない場合
がある。この様な場合は、添加剤と水性媒体を混合する
際、界面活性剤を併用することが好ましい。ここで用い
る界面活性剤の種類は、重合反応に悪影響を及ぼさない
ものであれば特に制限されないが、例えば、ポリビニル
アルコール等の高分子物質やポリオキシエチレン系の非
イオン界面活性剤である。又、ここで用いる界面活性剤
の量は全添加剤量の１０重量％以下で充分である。In the present invention, these additives are mixed in advance with an aqueous medium, and this mixture is added to the polymerization system. At this time, the weight ratio of the aqueous medium to all additives is 9515.
~70/30, usually in the form of a slurry. (The "aqueous medium" referred to here is one whose main component is water.) Depending on the type of additive used, a good (uniform) dispersion state may not be obtained when mixed with an aqueous medium. There is. In such a case, it is preferable to use a surfactant together when mixing the additive and the aqueous medium. The type of surfactant used here is not particularly limited as long as it does not adversely affect the polymerization reaction, and examples thereof include polymeric substances such as polyvinyl alcohol and nonionic surfactants such as polyoxyethylene. Further, it is sufficient that the amount of surfactant used here is 10% by weight or less based on the total amount of additives.
次に図面に基づいて本発明を詳述する。Next, the present invention will be explained in detail based on the drawings.
第１図は本発明を実施する際の一例のフロー図で、重合
の際添加する固体状添加剤は、各ホルダー１及び１°に
貯蔵し、計量フィーダー２及び２゛により必要量たけ切
出し、混合槽３で水性媒体と混合する。混合により得た
スラリーは滞留槽４を経てポンプ５により重合反応器８
に仕込まれる。液状添加剤はポンプ６により又重合に必
要な水系媒体はポンプ７を経て仕込みラインの添加剤の
洗浄も兼ねて重合器に仕込まれる。これらの系は好まし
くは密閉系にて行なわれる。FIG. 1 is a flow diagram of an example of carrying out the present invention, in which solid additives to be added during polymerization are stored in each holder 1 and 1°, and the required amount is cut out using measuring feeders 2 and 2°. It is mixed with an aqueous medium in a mixing tank 3. The slurry obtained by mixing passes through a retention tank 4 and is transferred to a polymerization reactor 8 by a pump 5.
be prepared for. The liquid additive is charged into the polymerization vessel via pump 6 and the aqueous medium necessary for polymerization via pump 7, which also serves to wash the additive in the charging line. These systems are preferably carried out in closed systems.
［発明の効果］ 本発明は次の諸効果がある。[Effect of the invention] The present invention has the following effects.
■、粉粒体、フレーク、液体等多種の性状の添加剤をこ
れらを混合した混合物として扱う一つのシステムで処理
でき、操作が簡便であるばかりでなく、複数の重合器へ
の定量的な重合系への同時供給が可能である。■It is possible to process additives with various properties such as powder, granules, flakes, and liquids in a single system that treats them as a mixture, which not only makes the operation simple but also enables quantitative polymerization in multiple polymerization vessels. Simultaneous supply to the system is possible.
２、連続計量仕込み、バッチ計量仕込みのいずれも可能
で、添加量の調節が容易であり多品種の製品重合体の製
造が簡便な操作で対応可能である。2. Both continuous metering and batch metering are possible, the amount added is easy to adjust, and a wide variety of product polymers can be produced with simple operations.
８、添加剤と水性媒体の混合物の均一化に、界面活性剤
を用いた場合、ここで用いた界面活性剤は重合懸濁安定
剤としての作用も併せもたせることが出来る。又ここで
用いる界面活性剤は、添加剤の仕込みに必要な短時間の
添加剤混合物の均一化に必要なもので、その量は比較的
少量で好い。8. When a surfactant is used to homogenize the mixture of the additive and the aqueous medium, the surfactant used here can also function as a polymerization suspension stabilizer. Further, the surfactant used here is necessary for homogenizing the additive mixture for a short period of time required for charging the additives, and the amount thereof may be relatively small.
４、易加工性塩化ビニル重合体を得る際用いる重合糸に
添加する界面活性剤の回を任意に且つ簡便に調節可能で
あるので、種々のグレードの重合体が容易に製造可能で
ある。4. Easily Processable Since the amount of surfactant added to the polymer thread used to obtain the vinyl chloride polymer can be arbitrarily and easily adjusted, polymers of various grades can be easily produced.
５、添加剤の重合機器への付着がないので操作が容易で
あり、又、定量的な添加剤の添加が可能である。5. Since additives do not adhere to the polymerization equipment, operation is easy, and quantitative addition of additives is possible.
６、有機溶媒、添加剤を移送するキャリアーガス等か不
要のため、これらによる製品品質への悪影響が無く、又
、有機溶媒を含んだ排水処理の問題かない。6. Since organic solvents and carrier gases for transporting additives are not required, there is no adverse effect on product quality, and there is no problem with wastewater treatment containing organic solvents.
７、高揚程スラリーポンプを用いることにより、高圧（
密閉）系への仕込みが可能である。7. By using a high head slurry pump, high pressure (
It is possible to charge it into a closed system.
又、重合途中での添加剤の添加を密閉系で行なうことが
できる。Additionally, additives can be added in a closed system during the polymerization.
８、従来の技術に比較して、厳密な添加剤量の調節が可
能であるので、均一な品質特性を持つ製品の製造が可能
である。8. Compared to the conventional technology, it is possible to precisely control the amount of additives, so it is possible to produce products with uniform quality characteristics.
［実施例］ 以下、実施例により本発明を具体的に説明する。[Example] Hereinafter, the present invention will be specifically explained with reference to Examples.
尚、実施例中にに記述の部は重量部である。In addition, the parts described in the examples are parts by weight.
実施例１ 重合は第１図に示した構成の重合機器にて行なった。Example 1 The polymerization was carried out using a polymerization apparatus having the configuration shown in FIG.
７ ｍ３の重合器（８）に先ず脱イオン水１５０部、部
分ケン化ポリビニルアルコール０．０４部を仕込み脱銀
後塩化ビニル単量体１．００部を仕込んだ。First, 150 parts of deionized water and 0.04 parts of partially saponified polyvinyl alcohol were charged into a 7 m3 polymerization vessel (8), and after desilvering, 1.00 parts of vinyl chloride monomer was charged.
その後、塩化ビニルの重合に通常用いられる粉末状、フ
レーク状の各種添加剤を混合槽（３）にて水性媒体と混
合して（スラリー濃度２０重量％）配管輸送しポンプ（
５）を介して重合器に仕込んだ。Thereafter, various additives in the form of powders and flakes commonly used in the polymerization of vinyl chloride are mixed with an aqueous medium in a mixing tank (3) (slurry concentration 20% by weight), transported through piping, and pumped (
5) was charged into the polymerization vessel.
重合開始剤等の液体添加剤も同時に同一配管にて仕込ん
だ。Liquid additives such as a polymerization initiator were also charged at the same time through the same pipe.
次いで重合器内容物を撹拌しながら５８℃で重合反応を
行ない、缶内圧が１ｋｇ／ｃＪに低下した時重合を停止
し、未反応モノマーを回収し脱水乾燥して塩化ビニル重
合体を得た。Next, a polymerization reaction was carried out at 58°C while stirring the contents of the polymerization vessel, and when the internal pressure of the vessel decreased to 1 kg/cJ, the polymerization was stopped, and unreacted monomers were collected and dehydrated and dried to obtain a vinyl chloride polymer.
得られた重合体の品質については、添加剤を重合釜の仕
込口から投入した場合に比較して粒度分布は狭くなり、
フィシュアイは減少し良好であった。Regarding the quality of the obtained polymer, the particle size distribution is narrower than when the additive is introduced from the charging port of the polymerization pot.
The number of fisheyes decreased and was in good condition.
尚、粒度分布の測定は、ＪＩＳ Ｚ ８８０１の標準ふ
るいによる振盪試験にて行ない、フィッシュアイの測定
は、重合体にジオクチルフタレート５０部を添加し、１
５０℃±２℃のロール温度でシート化したものを用いた
。The particle size distribution was measured by a shaking test using a standard sieve according to JIS Z 8801, and the fish eye was measured by adding 50 parts of dioctyl phthalate to the polymer and
A sheet formed at a roll temperature of 50°C±2°C was used.
［実施例２］
実施例１の方法にて、水性媒体に混合すると粘着性を示
し固化する粉体添加剤１００部にポリオキシエチレンノ
ニルフェニルエーテル５部を用いてエマルジョン化し、
その他の添加剤は実施例１と同様に仕込んだ以外は実施
例１と同様にして塩化ビニル重合体を得た。得られた重
合体は実施例１と同様に試験した結果、品質については
、実施例１とほぼ同等であった。[Example 2] Using the method of Example 1, 100 parts of a powder additive that exhibits stickiness and solidifies when mixed with an aqueous medium is emulsified with 5 parts of polyoxyethylene nonylphenyl ether,
A vinyl chloride polymer was obtained in the same manner as in Example 1, except that other additives were charged in the same manner as in Example 1. The obtained polymer was tested in the same manner as in Example 1, and the quality was almost the same as in Example 1.
第１図は本発明を実施する際の一例のフロー図である。
図中１，１°は添加剤ホルダー、２，２゛は計量フィー
ダー、３は混合槽、４は滞留槽、５〜７はポンプ、８は
重合反応器、９，９°は固体状添加剤導入部、１０は界
面活性剤導入部、１１は水導入部、１２は液状添抽剤導
入部を夫々示す。FIG. 1 is a flow diagram of an example of implementing the present invention. In the figure, 1 and 1 degrees are additive holders, 2 and 2 degrees are metering feeders, 3 is a mixing tank, 4 is a retention tank, 5 to 7 are pumps, 8 is a polymerization reactor, and 9 and 9 degrees are solid additives. Reference numeral 10 indicates a surfactant introduction section, 11 indicates a water introduction section, and 12 indicates a liquid extraction agent introduction section.
Claims (1)
合に必要な添加剤の一部又は全部をあらかじめ水性媒体
に混合したものを重合系に添加し重合を行なうことを特
徴とする重合方法。 ２）重合に必要な添加剤の一部又は全部を混合した水性
媒体が界面活性剤を含んだ水性媒体である特許請求の範
囲１）項記載の方法。 ３）重合に必要な添加剤の一部又は全部を混合した水性
媒体を加圧密閉重合系に添加する特許請求の範囲１）項
又は２）項記載の方法。 ４）重合性単量体がビニル系単量体である特許請求の範
囲１）項〜３）項のいづれか１項に記載の方法。[Claims] 1) When carrying out suspension or emulsion polymerization of polymerizable monomers, some or all of the additives necessary for polymerization are mixed in an aqueous medium in advance and added to the polymerization system to carry out the polymerization. A polymerization method characterized by: 2) The method according to claim 1), wherein the aqueous medium in which some or all of the additives necessary for polymerization are mixed is an aqueous medium containing a surfactant. 3) The method according to claim 1) or 2), wherein an aqueous medium mixed with some or all of the additives necessary for polymerization is added to the pressurized closed polymerization system. 4) The method according to any one of claims 1) to 3), wherein the polymerizable monomer is a vinyl monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61184189A JP2501322B2 (en) | 1986-08-07 | 1986-08-07 | Polymerization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61184189A JP2501322B2 (en) | 1986-08-07 | 1986-08-07 | Polymerization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6341507A true JPS6341507A (en) | 1988-02-22 |
| JP2501322B2 JP2501322B2 (en) | 1996-05-29 |
Family
ID=16148916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61184189A Expired - Fee Related JP2501322B2 (en) | 1986-08-07 | 1986-08-07 | Polymerization method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2501322B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2654363A1 (en) * | 1989-11-13 | 1991-05-17 | Tosoh Corp | METHOD FOR ADDING A POLYMERIZATION INITIATOR. |
| US5187245A (en) * | 1989-11-13 | 1993-02-16 | Tosoh Corporation | Method of addition of polymerization initiator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016047952A1 (en) * | 2014-09-23 | 2016-03-31 | 주식회사 엘지화학 | Method for producing vinyl chloride-based polymer and vinyl chloride-based polymer produced thereby |
| KR101633230B1 (en) | 2014-09-23 | 2016-07-01 | 주식회사 엘지화학 | Preparation method of vinylchloride polymer and vinyl chloride polymer produced by the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50104288A (en) * | 1974-01-23 | 1975-08-18 | ||
| JPS575703A (en) * | 1980-06-16 | 1982-01-12 | Shin Etsu Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
| JPS61130315A (en) * | 1984-11-30 | 1986-06-18 | Nippon Oil & Fats Co Ltd | Suspension polymerization of vinyl chloride unsaturated monomer |
| JPS62235303A (en) * | 1986-04-03 | 1987-10-15 | Shin Etsu Chem Co Ltd | Method for feeding suspension stabilizer in vinyl chloride suspension polymerization method |
-
1986
- 1986-08-07 JP JP61184189A patent/JP2501322B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50104288A (en) * | 1974-01-23 | 1975-08-18 | ||
| JPS575703A (en) * | 1980-06-16 | 1982-01-12 | Shin Etsu Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
| JPS61130315A (en) * | 1984-11-30 | 1986-06-18 | Nippon Oil & Fats Co Ltd | Suspension polymerization of vinyl chloride unsaturated monomer |
| JPS62235303A (en) * | 1986-04-03 | 1987-10-15 | Shin Etsu Chem Co Ltd | Method for feeding suspension stabilizer in vinyl chloride suspension polymerization method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2654363A1 (en) * | 1989-11-13 | 1991-05-17 | Tosoh Corp | METHOD FOR ADDING A POLYMERIZATION INITIATOR. |
| US5187245A (en) * | 1989-11-13 | 1993-02-16 | Tosoh Corporation | Method of addition of polymerization initiator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2501322B2 (en) | 1996-05-29 |
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