JP2007308628A - Method for producing vinylic copolymer - Google Patents

Method for producing vinylic copolymer Download PDF

Info

Publication number
JP2007308628A
JP2007308628A JP2006140149A JP2006140149A JP2007308628A JP 2007308628 A JP2007308628 A JP 2007308628A JP 2006140149 A JP2006140149 A JP 2006140149A JP 2006140149 A JP2006140149 A JP 2006140149A JP 2007308628 A JP2007308628 A JP 2007308628A
Authority
JP
Japan
Prior art keywords
vinyl
monomers
group
meth
monomer
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
Application number
JP2006140149A
Other languages
Japanese (ja)
Inventor
Kiyoto Ejiri
清人 江尻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP2006140149A priority Critical patent/JP2007308628A/en
Publication of JP2007308628A publication Critical patent/JP2007308628A/en
Pending legal-status Critical Current

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a vinylic copolymer by which attachment of vinylic monomers to a ceiling part, an inner wall, a stirring blade and a shaft part of a stirrer, etc., of a reaction vessel and the formation of a polymer or a gelled product accompanied therewith are effectively prevented. <P>SOLUTION: The method for producing the vinylic copolymer by feeding (A) vinylic monomers consisting essentially of one or more kinds of vinylic monomers (a1) selected from the group consisting of an epoxy group-containing vinylic monomer, a cyclocarbonate group-containing vinylic monomer, a carboxy group-containing vinylic monomer, an acid anhydride group-containing vinylic monomer and a hydroxy group-containing vinylic monomer, and (B) a radical polymerization initiator from each different feeding parts to the reaction vessel, and carrying out the radical polymerization thereof involves continuously or intermittently feeding the vinylic monomers (A) in a liquid state into a liquid of an organic solvent (C) under stirring. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる1種以上のビニル系単量体を必須成分として含有するビニル系単量体類を反応容器内で溶液重合するに際して、反応容器の天井部、内壁、コンデンサー部、攪拌機の攪拌軸部等への前記ビニル系単量体の付着と、これに伴う重合物やゲル化物の発生を抑制できるビニル系共重合体の製造方法に関する。   The present invention comprises an epoxy group-containing vinyl monomer, a cyclocarbonate group-containing vinyl monomer, a carboxyl group-containing vinyl monomer, a hydroxyl group-free vinyl monomer, and a hydroxyl group-containing vinyl monomer. When solution-polymerizing vinyl monomers containing at least one vinyl monomer selected from the group as an essential component in the reaction vessel, the reaction vessel ceiling, inner wall, condenser, and stirring shaft of the stirrer The present invention relates to a method for producing a vinyl copolymer capable of suppressing the adhesion of the vinyl monomer to a part and the like, and the generation of a polymer or a gelled product accompanying this.

ビニル系共重合体の溶液重合による製造方法、なかでもエポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体、水酸基含有ビニル系単量体等のラジカル反応性の高いビニル系単量体を含有するビニル系単量体類を用いたビニル系共重合体の溶液重合による製造方法としては、反応容器に仕込まれた有機溶剤中に、前記ビニル系単量体を含有するビニル系単量体類とラジカル重合開始剤を、それぞれ別の供給部から滴下して重合させる方法が知られている(例えば、特許文献1および特許文献2参照。)。   Production method of vinyl copolymer by solution polymerization, among them epoxy group-containing vinyl monomer, cyclocarbonate group-containing vinyl monomer, carboxyl group-containing vinyl monomer, hydroxyl-free vinyl monomer As a production method by solution polymerization of a vinyl copolymer using vinyl monomers containing a vinyl monomer having high radical reactivity such as a hydroxyl group-containing vinyl monomer, the reaction vessel is charged with A method is known in which a vinyl monomer containing a vinyl monomer and a radical polymerization initiator are dropped into a separate organic solvent and polymerized in separate organic solvents (for example, patents) Reference 1 and Patent Reference 2).

しかしながら、これら特許文献1や特許文献2に記載されている溶液重合によるビニル系共重合体の製造方法では、ラジカル反応性の高いビニル系単量体を用いているため、これらビニル系単量体のミストが反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等へ付着して重合し、ゲル化するため、付着した重合物やゲル化物の除去作業に時間を要し、生産性が低下するという問題や、重合して得られたビニル系共重合体の取出時に反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等へ付着していた重合物やゲル化物が混入するという問題がある。   However, in the method for producing a vinyl copolymer by solution polymerization described in Patent Document 1 and Patent Document 2, since a vinyl monomer having high radical reactivity is used, these vinyl monomers are used. Since the mist of the polymer adheres to the ceiling and inner walls of the reaction vessel, the stirring blades and shafts of the stirrer and polymerizes and gels, it takes time to remove the adhered polymer and gelled product, and the productivity is high. It is said that the polymer or gelled material adhering to the ceiling part, inner wall of the reaction vessel, the stirring blade or the shaft part of the stirrer, etc. is mixed when the vinyl copolymer obtained by polymerization is taken out. There's a problem.

特開平04−175359号公報Japanese Patent Laid-Open No. 04-175359 特開平06−264122号公報Japanese Patent Laid-Open No. 06-264122

本発明が解決しようとする課題は、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる1種以上のビニル系単量体を必須成分として含有するビニル系単量体類を反応容器内で溶液重合するに際して、反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等への前記ビニル系単量体類の付着と、これに伴う重合物やゲル化物の発生を抑制できるビニル系共重合体の製造方法を提供することにある。   Problems to be solved by the present invention include epoxy group-containing vinyl monomers, cyclocarbonate group-containing vinyl monomers, carboxyl group-containing vinyl monomers, hydroxyl-free vinyl monomers, and hydroxyl-containing vinyls. When solution-polymerizing vinyl monomers containing at least one vinyl monomer selected from the group consisting of a monomer as an essential component in the reaction vessel, the ceiling, inner wall, and stirrer of the reaction vessel Another object of the present invention is to provide a method for producing a vinyl copolymer capable of suppressing the adhesion of the vinyl monomers to the stirring blade, the shaft portion, and the like, and the generation of a polymer or gelled product accompanying this.

本発明者らは、前記課題を解決しようと鋭意検討を行った結果、前記ビニル系単量体を必須成分とする単量体類と、ラジカル重合開始剤を、それぞれ別の供給部から有機溶剤(C)が充填された反応容器内に供給してラジカル重合させるビニル系共重合体の製造方法であって、前記単量体類を有機溶剤の液中に攪拌下に液状で連続又は断続で供給するビニル系共重合体の製造方法では、反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等へのビニル系単量体類の付着と、これに伴う重合物やゲル化物の発生を効果的に抑制することができ、発生した重合物やゲル化物の混入のないビニル系共重合体を容易に製造できることを見出し、本発明を完成させるに至った。   As a result of intensive studies to solve the above problems, the present inventors have found that the monomers having the vinyl monomer as an essential component and a radical polymerization initiator are respectively supplied from different supply units to an organic solvent. (C) A method for producing a vinyl-based copolymer which is supplied into a reaction vessel filled with radical polymerization and is radically polymerized, wherein the monomers are continuously stirred in a liquid in an organic solvent or continuously or intermittently. In the production method of the vinyl copolymer to be supplied, vinyl monomers adhere to the ceiling, inner wall of the reaction vessel, the stirring blade or shaft of the stirrer, and the resulting polymer or gel is generated. It has been found that a vinyl copolymer can be easily produced without mixing the generated polymer or gelled product, and the present invention has been completed.

即ち、本発明は、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる1種以上のビニル系単量体(a1)を必須成分とするビニル系単量体類(A)(ただし、エポキシ基含有ビニル系単量体とカルボキシル基含有ビニル系単量体の併用と、無水酸基含有ビニル系単量体と水酸基含有ビニル系単量体の併用を除く。)と、ラジカル重合開始剤(B)を、それぞれ別の供給部から有機溶剤(C)が充填された反応容器内に供給してラジカル重合させるビニル系共重合体の製造方法であって、前記単量体類(A)を有機溶剤(C)の液中に攪拌下に液状で連続又は断続で供給することを特徴とするビニル系共重合体の製造方法を提供するものである。   That is, the present invention relates to an epoxy group-containing vinyl monomer, a cyclocarbonate group-containing vinyl monomer, a carboxyl group-containing vinyl monomer, a hydroxyl group-free vinyl monomer, and a hydroxyl group-containing vinyl monomer. Vinyl monomers (A) having at least one vinyl monomer (a1) selected from the group consisting of the above as essential components (however, epoxy group-containing vinyl monomers and carboxyl group-containing vinyl monomers) And the radical polymerization initiator (B) are separately supplied from separate supply units to the organic solvent (C). Is a method for producing a vinyl copolymer which is supplied into a reaction vessel filled with a polymer and radically polymerizes, and the monomers (A) are continuously in a liquid state under stirring in a liquid of an organic solvent (C). Or supplied intermittently There is provided a method for producing a sulfonyl copolymer.

本発明の製造方法によれば、反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等へのビニル系単量体類の付着と、これに伴う重合物やゲル化物の発生を効果的に抑制することができるため、発生した重合物やゲル化物の除去作業による生産性の低下が防止できると共に、重合物やゲル化物の混入のない高品質のビニル系共重合体を容易に製造できるという利点がある。   According to the production method of the present invention, it is effective to adhere vinyl monomers to the ceiling portion, inner wall of the reaction vessel, the stirring blade and the shaft portion of the stirrer, and the generation of a polymer or a gelled product accompanying this. Therefore, it is possible to prevent a decrease in productivity due to the removal operation of the generated polymer or gelled product, and to easily produce a high-quality vinyl copolymer free from mixing of the polymer or gelled product. There is an advantage.

以下、本発明の詳細について述べる。
本発明で用いるビニル系単量体類(A)としては、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる1種以上のビニル系単量体(a1)を必須成分として含有するもの(ただし、エポキシ基含有ビニル系単量体とカルボキシル基含有ビニル系単量体の併用と、無水酸基含有ビニルル系単量体と水酸基含有ビニル系単量体の併用を除く。)であればよく、特に限定されないが、なかでも、エポキシ基含有(メタ)アクリル系単量体、シクロカーボネート基含有(メタ)アクリル系単量体、カルボキシル基含有(メタ)アクリル系単量体および水酸基含有(メタ)アクリル系単量体からなる群から選ばれる1種以上の(メタ)アクリル系単量体を必須成分として含有する(メタ)アクリル系単量体(a11)を用いることが好ましい。
Details of the present invention will be described below.
The vinyl monomers (A) used in the present invention include epoxy group-containing vinyl monomers, cyclocarbonate group-containing vinyl monomers, carboxyl group-containing vinyl monomers, and hydroxyl-free vinyl monomers. Containing as an essential component one or more vinyl monomers (a1) selected from the group consisting of a monomer and a hydroxyl group-containing vinyl monomer (provided that an epoxy group-containing vinyl monomer and a carboxyl group are contained) (Excluding the combined use of vinyl monomers and the combined use of hydroxyl group-free vinyl monomers and hydroxyl group-containing vinyl monomers). A group consisting of acrylic monomers, cyclocarbonate group-containing (meth) acrylic monomers, carboxyl group-containing (meth) acrylic monomers, and hydroxyl group-containing (meth) acrylic monomers It is preferable to use al chosen one or more (meth) containing as an essential component an acrylic monomer (meth) acrylic monomer (a11).

なお、前記した、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体としては、エポキシ基、シクロカーボネート基、カルボキシル基、無水酸基および水酸基からなる群から選ばれる2種以上の官能基を併有するものであってもよい。   As described above, as an epoxy group-containing vinyl monomer, a cyclocarbonate group-containing vinyl monomer, a carboxyl group-containing vinyl monomer, a hydroxyl group-free vinyl monomer, and a hydroxyl group-containing vinyl monomer. May have two or more functional groups selected from the group consisting of an epoxy group, a cyclocarbonate group, a carboxyl group, a hydroxyl group-free group and a hydroxyl group.

また、前記ビニル系単量体類(A)としては、前記ビニル系単量体(a1)とその他のビニル系単量体(a2)を含有するビニル系単量体混合物であることが好ましく、例えば、ビニル系単量体類(A)100重量%に対してビニル系単量体(a1)の含有率が10〜70重量%であるビニル系単量体混合物が挙げられる。このようなビニル系単量体混合物としてのビニル系単量体類(A)のなかでも、反応容器の天井部、内壁、攪拌機の攪拌翼や軸部等への(メタ)アクリル系単量体の付着の抑制効果が高く、高品質のビニル系共重合体が製造できることから、ビニル系単量体類(A)100重量%に対して、ビニル系単量体(a1)の含有率が10〜70重量%、より好ましくは15〜65重量%で、かつ、エポキシ基含有ビニル系単量体の含有率が60重量%以下、シクロカーボネート基含有ビニル系単量体の含有率が30重量%以下、カルボキシル基含有ビニル系単量体および無水酸基含有ビニル系単量体の合計の含有率が50重量%以下、水酸基含有ビニル系単量体の含有率が50重量%以下であることがより好ましい。   The vinyl monomers (A) are preferably vinyl monomer mixtures containing the vinyl monomer (a1) and other vinyl monomers (a2). Examples thereof include a vinyl monomer mixture in which the content of the vinyl monomer (a1) is 10 to 70% by weight with respect to 100% by weight of the vinyl monomers (A). Among the vinyl monomers (A) as such a vinyl monomer mixture, (meth) acrylic monomers on the reaction vessel ceiling, inner wall, stirring blades and shafts of the stirrer, etc. Since the adhesion effect of the resin is high and a high-quality vinyl copolymer can be produced, the vinyl monomer (a1) content is 10% with respect to 100% by weight of the vinyl monomers (A). -70 wt%, more preferably 15-65 wt%, the epoxy group-containing vinyl monomer content is 60 wt% or less, and the cyclocarbonate group-containing vinyl monomer content is 30 wt%. Hereinafter, the total content of the carboxyl group-containing vinyl monomer and the hydroxyl-free vinyl monomer is 50% by weight or less, and the content of the hydroxyl group-containing vinyl monomer is 50% by weight or less. preferable.

さらに、前記ビニル系単量体類(A)が、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる2種以上のビニル系単量体を含有する場合には、(メタ)アクリル系単量体の付着の抑制効果が特に顕著に発現し、高品質のビニル系共重合体が容易に製造できることから、より好ましい。   Further, the vinyl monomers (A) are epoxy group-containing vinyl monomers, cyclocarbonate group-containing vinyl monomers, carboxyl group-containing vinyl monomers, and hydroxyl-free vinyl monomers. And when containing two or more kinds of vinyl monomers selected from the group consisting of hydroxyl group-containing vinyl monomers, the effect of suppressing adhesion of (meth) acrylic monomers is particularly prominent, A high-quality vinyl copolymer is more preferable because it can be easily produced.

前記エポキシ基含有ビニル系単量体としては、例えば、グリシジル(メタ)アクリレート、β−メチルグリシジル(メタ)アクリレート、グリシジルビニルエーテル、アリルグリシジルエーテル等のエポキシ基含有ビニル単量体;(2−オキソ−1,3−オキソラン)メチル(メタ)アクリレート等の(2−オキソ−1,3−オキソラン)基含有ビニル単量体;3,4−エポキシシクロヘキシル(メタ)アクリレート、3,4−エポキシシクロヘキシルメチル(メタ)アクリレート、3,4−エポキシシクロヘキシルエチル(メタ)アクリレート等の脂環式エポキシ基含有ビニル単量体などが挙げられ、なかでも共重合性に優れることからエポキシ基含有(メタ)アクリル系単量体が好ましい。   Examples of the epoxy group-containing vinyl monomer include epoxy group-containing vinyl monomers such as glycidyl (meth) acrylate, β-methylglycidyl (meth) acrylate, glycidyl vinyl ether, and allyl glycidyl ether; (2-oxo-1,3-oxolane) group-containing vinyl monomers such as 1,3-oxolane) methyl (meth) acrylate; 3,4-epoxycyclohexyl (meth) acrylate, 3,4-epoxycyclohexylmethyl ( Examples thereof include alicyclic epoxy group-containing vinyl monomers such as (meth) acrylate and 3,4-epoxycyclohexylethyl (meth) acrylate. Among them, epoxy group-containing (meth) acrylic monomers are excellent because of excellent copolymerizability. A monomer is preferred.

前記シクロカーボネート基含有ビニル系単量体としては、例えば、シクロカーボネート基(1,3−ジオキソラン−2−オン−4−イル基)として下記一般式〔I〕   Examples of the cyclocarbonate group-containing vinyl monomer include, for example, the following general formula [I] as a cyclocarbonate group (1,3-dioxolan-2-one-4-yl group).

Figure 2007308628
(ただし、式中のR、RおよびRは、それぞれ同一であっても異なってもよい、水素原子または炭素原子数1〜4のアルキル基を表す。)
で示される基を含有するビニル系単量体が挙げられる。その具体例としては、
Figure 2007308628
(However, R 1 , R 2 and R 3 in the formula represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, which may be the same or different.)
And vinyl monomers containing a group represented by the formula: As a specific example,

Figure 2007308628
(ただし、式中のRは、水素原子またはメチル基、R、RおよびRは、それぞれ同一であっても異なってもよい、水素原子または炭素原子数1〜4のアルキル基を表し、また、nは1〜6の整数を表す。〕
で示されるような、2,3−カーボネートプロピル(メタ)アクリレート、2−メチル−2,3−カーボネートプロピル(メタ)アクリレート、4−メチル−3,4−カーボネートブチル(メタ)アクリレート、3−メチル−3,4−カーボネートブチル(メタ)アクリレート、5−エチル−5,6−カーボネートヘキシル(メタ)アクリレート、7,8−カーボネートオクチル(メタ)アクリレート等のシクロカーボネート基含有(メタ)アクリル系単量体や、2,3−カーボネートプロピルビニルエーテル、メチル−2,3−カーボネートプロピルマレート、メチル−2,3−カーボネートプロピルクロトネート等が挙げられ、なかでも共重合性に優れることからシクロカーボネート基含有(メタ)アクリル系単量体が好ましく、前記一般式〔II〕で示されるシクロカーボネート基含有(メタ)アクリル系単量体がさらに好ましい。
Figure 2007308628
(In the formula, R represents a hydrogen atom or a methyl group, R 1 , R 2 and R 3 each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, which may be the same or different. N represents an integer of 1 to 6.]
2,3-carbonate propyl (meth) acrylate, 2-methyl-2,3-carbonate propyl (meth) acrylate, 4-methyl-3,4-carbonate butyl (meth) acrylate, 3-methyl Cyclocarbonate group-containing (meth) acrylic monomers such as 3,4-carbonate butyl (meth) acrylate, 5-ethyl-5,6-carbonate hexyl (meth) acrylate, 7,8-carbonate octyl (meth) acrylate, etc. Body, 2,3-carbonate propyl vinyl ether, methyl-2,3-carbonate propylmalate, methyl-2,3-carbonate propyl crotonate, etc. (Meth) acrylic monomers are preferred, Cyclocarbonate group-containing represented by the formula [II] (meth) acrylic monomer is more preferred.

前記カルボキシル基含有ビニル系単量体しては、例えば、(メタ)アクリル酸、クロトン酸、イタコン酸、マレイン酸、フマル酸等のカルボキシル基ビニル系単量体;フマル酸モノメチル、フマル酸モノエチル、フマル酸モノブチル、フマル酸モノイソブチル、フマル酸モノtert−ブチル、フマル酸モノヘキシル、フマル酸モノオクチル、フマル酸モノ2−エチルヘキシル、マレイン酸モノメチル、マレイン酸モノエチル、マレイン酸モノブチル、マレイン酸モノイソブチル、マレイン酸モノtert−ブチル、マレイン酸モノヘキシル、マレイン酸モノオクチル、マレイン酸モノ2−エチルヘキシル、イタコン酸モノメチル、イタコン酸モノエチル、イタコン酸モノブチル、イタコン酸モノイソブチル、イタコン酸モノヘキシル、イタコン酸モノオクチル、イタコン酸モノ2−エチルヘキシル等のカルボン酸モノアルキルエステルなどが挙げられ、なかでも共重合性に優れることからカルボキシル基含有(メタ)アクリル系単量体が好ましい。   Examples of the carboxyl group-containing vinyl monomer include, for example, carboxyl group vinyl monomers such as (meth) acrylic acid, crotonic acid, itaconic acid, maleic acid, and fumaric acid; monomethyl fumarate, monoethyl fumarate, Monobutyl fumarate, monoisobutyl fumarate, mono-tert-butyl fumarate, monohexyl fumarate, monooctyl fumarate, mono-2-ethylhexyl fumarate, monomethyl maleate, monoethyl maleate, monobutyl maleate, monoisobutyl maleate, maleic Mono-tert-butyl acid, monohexyl maleate, monooctyl maleate, mono-2-ethylhexyl maleate, monomethyl itaconate, monoethyl itaconate, monobutyl itaconate, monoisobutyl itaconate, monohexyl itaconate, italy Phosphate mono octyl, such as carboxylic acid monoalkyl esters and itaconic acid mono-2-ethylhexyl can be mentioned a carboxyl group-containing (meth) acrylic monomers are preferable because of excellent among them copolymerizability.

前記無水酸基含有ビニル系単量体しては、例えば、無水マレイン酸、無水イタコン酸、無水シトラコン酸、テトラハイドロ無水フタル酸、ヘキサハイドロ無水フタル酸等が挙げられる。   Examples of the hydroxyl-free vinyl monomer include maleic anhydride, itaconic anhydride, citraconic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, and the like.

前記水酸基含有ビニル系単量体としては、例えば、2−ヒドロキシエチル(メタ)アクリレート、2−ヒドロキシプロピル(メタ)アクリレート、3−ヒドロキシプロピル(メタ)アクリレート、2−ヒドロキシブチル(メタ)アクリレート、3−ヒドロキシブチル(メタ)アクリレート、4−ヒドロキシブチル(メタ)アクリレート、ポリエチレングリコールモノ(メタ)アクリレート、ポリプロピレングリコールモノ(メタ)アクリレート等の水酸基含有(メタ)アクリレート;このような(メタ)アクリレートと、ε−カプロラクトンの付加反応生成物;   Examples of the hydroxyl group-containing vinyl monomer include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 3 Hydroxyl group-containing (meth) acrylates such as hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate; addition reaction product of ε-caprolactone;

2−ヒドロキシエチルビニルエーテル、3−ヒドロキシプロピルビニルエーテル、2−ヒドロキシプロピルビニルエーテル、4−ヒドロキシブチルビニルエーテル、3−ヒドロキシブチルビニルエーテル、2−ヒドロキシ−2−メチルプロピルビニルエーテル、5−ヒドロキシペンチルビニルエーテル、6−ヒドロキシヘキシルビニルエーテル等の水酸基含有ビニルエーテル;このようなビニルエーテルと、ε−カプロラクトンとの付加反応生成物; 2-hydroxyethyl vinyl ether, 3-hydroxypropyl vinyl ether, 2-hydroxypropyl vinyl ether, 4-hydroxybutyl vinyl ether, 3-hydroxybutyl vinyl ether, 2-hydroxy-2-methylpropyl vinyl ether, 5-hydroxypentyl vinyl ether, 6-hydroxyhexyl Hydroxyl group-containing vinyl ethers such as vinyl ethers; addition reaction products of such vinyl ethers with ε-caprolactone;

2−ヒドロキシエチル(メタ)アリルエーテル、3−ヒドロキシプロピル(メタ)アリルエーテル、2−ヒドロキシプロピル(メタ)アリルエーテル、4−ヒドロキシブチル(メタ)アリルエーテル、3−ヒドロキシブチル(メタ)アリルエーテル、2−ヒドロキシ−2−メチルプロピル(メタ)アリルエーテル、5−ヒドロキシペンチル(メタ)アリルエーテル、6−ヒドロキシヘキシル(メタ)アリルエーテル等の水酸基含有アリルエーテル;このようなアリルエーテルと、ε−カプロラクトンとの付加反応生成物などが挙げられ、なかでも共重合性に優れることから水酸基含有(メタ)アクリル系単量体が好ましい。 2-hydroxyethyl (meth) allyl ether, 3-hydroxypropyl (meth) allyl ether, 2-hydroxypropyl (meth) allyl ether, 4-hydroxybutyl (meth) allyl ether, 3-hydroxybutyl (meth) allyl ether, Hydroxyl-containing allyl ethers such as 2-hydroxy-2-methylpropyl (meth) allyl ether, 5-hydroxypentyl (meth) allyl ether, 6-hydroxyhexyl (meth) allyl ether; such allyl ethers and ε-caprolactone And the addition reaction product of the hydroxyl group-containing (meth) acrylic monomer is preferred because of excellent copolymerizability.

また、その他のビニル系単量体(a2)としては、例えば、(メタ)アクリル酸メチル、(メタ)アクリル酸エチル、(メタ)アクリル酸n−プロピル、(メタ)アクリル酸イソプロピル、(メタ)アクリル酸n−ブチル、(メタ)アクリル酸イソブチル、(メタ)アクリル酸tert−ブチル、(メタ)アクリル酸n−ヘキシル、(メタ)アクリル酸シクロヘキシル、(メタ)アクリル酸2−エチルヘキシル、(メタ)アクリル酸n−オクチル、(メタ)アクリル酸イソオクチル、(メタ)アクリル酸2−エチルオクチル、(メタ)アクリル酸ドデシル、(メタ)アクリル酸イソデシル、(メタ)アクリル酸ラウリルまたは(メタ)アクリル酸ステアリル等の(メタ)アクリル酸アルキルエステル;(メタ)アクリル酸ベンジル、(メタ)アクリル酸フェニル、(メタ)アクリル酸フェノキシエチル、(メタ)アクリル酸テトラヒドロフルフリル;   Other vinyl monomers (a2) include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, (meth) N-butyl acrylate, isobutyl (meth) acrylate, tert-butyl (meth) acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, (meth) N-octyl acrylate, isooctyl (meth) acrylate, 2-ethyloctyl (meth) acrylate, dodecyl (meth) acrylate, isodecyl (meth) acrylate, lauryl (meth) acrylate or stearyl (meth) acrylate (Meth) acrylic acid alkyl esters such as benzyl (meth) acrylate, (meth) Phenyl acrylic acid, (meth) acrylic acid phenoxy ethyl, (meth) acrylic acid tetrahydrofurfuryl;

エチルカルビトール(メタ)アクリレート等のアルキルカルビトール(メタ)アクリレート;イソボルニル(メタ)アクリレート、ジシクロペンタニル(メタ)アクリレート、ジシクロペンテニル(メタ)アクリレート、ジシクロペンテニロキシエチル(メタ)アクリレート等の(メタ)アクリル酸エステル類;エチレン、プロピレン、ブテン−1等のα−オレフィン類;塩化ビニル、塩化ビニリデン等のフルオロオレフィンを除く各種のハロゲン化オレフィン類(ハロ・オレフィン類);スチレン、α−メチルスチレン、ビニルトルエン等の芳香族ビニル単量体;フマル酸ジメチル、フマル酸ジエチル、フマル酸ジブチル、フマル酸ジオクチル、マレイン酸ジメチル、マレイン酸ジエチル、マレイン酸ジブチル、マレイン酸ジオクチル、イタコン酸ジメチル、イタコン酸ジエチル、イタコン酸ジブチル、イタコン酸ジオクチル等の不飽和ジカルボン酸と、炭素数1〜18の1価アルコールとのジエステル類; Alkyl carbitol (meth) acrylates such as ethyl carbitol (meth) acrylate; isobornyl (meth) acrylate, dicyclopentanyl (meth) acrylate, dicyclopentenyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate (Meth) acrylic acid esters such as ethylene, propylene, butene-1, and other α-olefins; various halogenated olefins (halo-olefins) excluding fluoroolefins such as vinyl chloride and vinylidene chloride; styrene, Aromatic vinyl monomers such as α-methylstyrene and vinyltoluene; dimethyl fumarate, diethyl fumarate, dibutyl fumarate, dioctyl fumarate, dimethyl maleate, diethyl maleate, dibutyl maleate, dioctyl maleate, italy Diesters of unsaturated dicarboxylic acids such as dimethyl conc, diethyl itaconate, dibutyl itaconate, dioctyl itaconate and monohydric alcohols having 1 to 18 carbon atoms;

N−ジメチルアミノエチル(メタ)アクリルアミド、N−ジエチルアミノエチル(メタ)アクリルアミド、N−ジメチルアミノプロピル(メタ)アクリルアミド、N−ジエチルアミノプロピル(メタ)アクリルアミド等のアミノ基含有アミド系不飽和単量体類;ジメチルアミノエチル(メタ)アクリレート、ジエチルアミノエチル(メタ)アクリレート等のジアルキルアミノアルキル(メタ)アクリレート類;tert−ブチルアミノエチル(メタ)アクリレート、tert−ブチルアミノプロピル(メタ)アクリレート、アジリジニルエチル(メタ)アクリレート、ピロリジニルエチル(メタ)アクリレート、ピペリジニルエチル(メタ)アクリレート等のアミノ基含有単量体類; Amino group-containing amide unsaturated monomers such as N-dimethylaminoethyl (meth) acrylamide, N-diethylaminoethyl (meth) acrylamide, N-dimethylaminopropyl (meth) acrylamide, N-diethylaminopropyl (meth) acrylamide, etc. Dialkylaminoalkyl (meth) acrylates such as dimethylaminoethyl (meth) acrylate and diethylaminoethyl (meth) acrylate; tert-butylaminoethyl (meth) acrylate, tert-butylaminopropyl (meth) acrylate, aziridinylethyl Amino group-containing monomers such as (meth) acrylate, pyrrolidinylethyl (meth) acrylate, piperidinylethyl (meth) acrylate;

ジエチル−2−(メタ)アクリロイルオキシエチルフォスフェート、ジブチル−2−(メタ)アクリロイルオキシブチルフォスフェート、ジオクチル−2−(メアクリロイルオキシエチルフォスフェート、ジフェニル−2−(メタ)アクリロイルオキシエチルフォスフェート等の燐酸エステル基含有単量体類;酢酸ビニル、プロピオン酸ビニル、酪酸ビニル、イソ酪酸ビニル、カプロン酸ビニル、カプリル酸ビニル、カプリン酸ビニル、ラウリン酸ビニル、炭素数9〜11の分岐状(分枝状)脂肪族カルボン酸ビニル、ステアリン酸ビニル等の脂肪族カルボン酸ビニル類;シクロヘキサンカルボン酸ビニル、メチルシクロヘキサンカルボン酸ビニル、安息香酸ビニル、p−tert−ブチル安息香酸ビニル等の環状構造を有するカルボン酸のビニルエステル類; Diethyl-2- (meth) acryloyloxyethyl phosphate, dibutyl-2- (meth) acryloyloxybutyl phosphate, dioctyl-2- (methacryloyloxyethyl phosphate, diphenyl-2- (meth) acryloyloxyethyl phosphate Phosphoric ester group-containing monomers such as vinyl acetate, vinyl propionate, vinyl butyrate, vinyl isobutyrate, vinyl caproate, vinyl caprylate, vinyl caprate, vinyl laurate, branched chain having 9 to 11 carbon atoms ( Branched) Aliphatic carboxylates such as aliphatic carboxylates and vinyl stearates; cyclic structures such as vinyl cyclohexanecarboxylate, vinyl methylcyclohexanecarboxylate, vinyl benzoate, vinyl p-tert-butylbenzoate Having carboxylic acid Niruesuteru the like;

γ−メタクリロキシプロピルトリメトキシシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン、γ−メタクリロキシプロピルトリエトキシシラン等の不飽和結合含有シラン化合物;ジアリルフタレート、ジビニルベンゼン、アリルアクリレート、トリメチロールプロパントリメタクリレート、エチレングリコールジメタクリレート、ジエチレングリコールジメタクリレート等の1分子中に複数個不飽和基を持ったエチレン性不飽和単量体等が挙げられ、なかでも(メタ)アクリル酸アルキルエステルを用いることが好ましい。なお、これらその他のビニル系単量体(a2)は、それぞれ単独で用いてもよいし、2種以上を併用してもよい。 Unsaturated silane compounds such as γ-methacryloxypropyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, γ-methacryloxypropyltriethoxysilane; diallyl phthalate, divinylbenzene, allyl acrylate, trimethylolpropane trimethacrylate And ethylenically unsaturated monomers having a plurality of unsaturated groups in one molecule such as ethylene glycol dimethacrylate and diethylene glycol dimethacrylate. Among them, (meth) acrylic acid alkyl esters are preferably used. These other vinyl monomers (a2) may be used alone or in combination of two or more.

本発明の製造方法では、前記ビニル系単量体(a1)を必須成分とし、更に必要によりその他のビニル系単量体を含有するビニル系単量体類(A)を、反応容器内の有機溶剤(C)の液中に、攪拌下に、液状で連続又は断続で供給し、別の供給部から供給されたラジカル重合開始剤(B)の存在下で、ビニル系単量体類(A)をラジカル重合させればよく、例えば、供給口先端部が、ビニル系単量体類(A)供給開始時の反応容器内の有機溶剤(C)の液面と同一又は液面より下の液中部となる位置に、好ましくはビニル系単量体類(A)供給開始時の反応容器内の有機溶剤(C)の液面からの深さが10cm以上の液中部となる位置に設置されたビニル系単量体類(A)供給装置の供給口から、ビニル系単量体類(A)を、連続又は断続で、好ましくは連続で60〜200℃、好ましくは80〜180℃の温度、必要により加圧下、好ましくは0.01〜1MPaの加圧下、より好ましくは0.1〜1MPaの加圧下で、1〜10時間、好ましくは2〜6時間かけて供給しつつラジカル反応させた後、更に30分〜12時間、好ましくは1〜10時間ラジカル反応を続行して熟成させる方法が挙げられる。なお、ビニル系単量体類(A)供給開始時の反応容器内の有機溶剤(C)中には、ビニル系単量体類(A)の一部が予め混合されていてもよく、この際のビニル系単量体類(A)の含有率としては、有機溶剤(C)とビニル系単量体類(A)の合計100重量%に対して30重量%以下であることが好ましい。   In the production method of the present invention, the vinyl monomer (A1) containing the vinyl monomer (a1) as an essential component and further containing other vinyl monomers as necessary is added to the organic monomer in the reaction vessel. In the liquid of the solvent (C), it is supplied in a liquid state continuously or intermittently with stirring, and in the presence of the radical polymerization initiator (B) supplied from another supply unit, vinyl monomers (A For example, the supply port tip is the same as or lower than the liquid level of the organic solvent (C) in the reaction vessel at the start of the supply of the vinyl monomers (A). It is preferably installed at a position where the depth of the organic solvent (C) in the reaction vessel at the beginning of the supply of the vinyl-based monomers (A) is 10 cm or more at a position where it is in the liquid. The vinyl monomers (A) can be continuously or intermittently fed from the supply port of the vinyl monomers (A) supply device. Preferably, the temperature is continuously 60 to 200 ° C., preferably 80 to 180 ° C., if necessary, under pressure, preferably under pressure of 0.01 to 1 MPa, more preferably under pressure of 0.1 to 1 MPa, 1 to 10 Examples include a method in which the radical reaction is continued for a period of time, preferably 2 to 6 hours, followed by further aging by continuing the radical reaction for 30 minutes to 12 hours, preferably 1 to 10 hours. A part of the vinyl monomers (A) may be mixed in advance in the organic solvent (C) in the reaction vessel at the start of the supply of the vinyl monomers (A). The content of the vinyl monomer (A) is preferably 30% by weight or less with respect to 100% by weight of the total of the organic solvent (C) and the vinyl monomer (A).

本発明で用いる前記ビニル系単量体類(A)は、供給に際して液状であることが必要であるが、前記ビニル系単量体類(A)中で他の液状ビニル系単量体に溶解させて用いるのであれば、単独では固形のビニル系単量体が含有されてもよい。また、本発明で用いる前記ビニル系単量体類(A)が2種以上のビニル系単量体を含有してなるものである場合には、通常予め混合したものを1個の供給装置から有機溶剤(C)の液中に1個の供給口から供給するが、必要に応じて供給口を2個以上に分割してもよいし、2個以上の供給装置を用いて2個以上の供給口から供給してもよい。   The vinyl monomers (A) used in the present invention need to be liquid at the time of supply, but are soluble in other liquid vinyl monomers in the vinyl monomers (A). If used alone, a solid vinyl monomer may be contained alone. In addition, when the vinyl monomers (A) used in the present invention contain two or more kinds of vinyl monomers, they are usually mixed in advance from one feeder. The organic solvent (C) is supplied from one supply port, but the supply port may be divided into two or more if necessary, and two or more using two or more supply devices. You may supply from a supply port.

本発明の製造方法で使用するラジカル重合開始剤(B)としては、種々の化合物を使用することができ、例えば、2,2'−アゾビスイソブチロニトリル、2,2'−アゾビス−メチルブチロニトリル、2,2'−アゾビス−2,4−ジメチルバレロニトリル、1,1'−アゾビス−シクロヘキサンカルボニトリル、ジメチル−2,2'−アゾビスイソブチレート、4,4'−アゾビス−4−シアノ吉草酸、2,2'−アゾビス−(2−アミジノプロペン)2塩酸塩、2−tert−ブチルアゾ−2−シアノプロパン、2,2'−アゾビス(2−メチル−プロピオンアミド)2水和物、2,2'−アゾビス[2−(2−イミダゾリン−2−イル)プロペン]、2,2'−アゾビス(2,2,4−トリメチルペンタン)等のアゾ化合物;過酸化ベンゾイル、メチルエチルケトンパーオキサイド、キュメンハイドロパーオキサイド、カリウムパーサルフェート、tert−ブチルパーオキシネオデカノエート、tert−ブチルパーオキシピバレート、tert−ブチルパーオキシ−2−エチルヘキサノエート、tert−ブチルパーオキシイソブチレート、1,1−ビス−tert−ブチルパーオキシ−3,3,5−トリメチルシクロヘキサン、tert−ブチルパーオキシーラウレート、tert−ブチルパーオキシイソフタレート、tert−ブチルパーオキシアセテート、tert−ブチルパーオキシベンゾエート、ジクミルパーオキシド、ジ−tert−ブチルパーオキシド、ジ−tert−アミルパーオキシド等のケトンパーオキシド類;パーオキシケタール類;ハイドロパーオキシド類;ジアルキルパーオキシド類;ジアシルパーオキシド類;パーオキシエステル類;パーオキシジカーボネート類;過酸化水素などが挙げられる。   As the radical polymerization initiator (B) used in the production method of the present invention, various compounds can be used, for example, 2,2′-azobisisobutyronitrile, 2,2′-azobis-methyl. Butyronitrile, 2,2'-azobis-2,4-dimethylvaleronitrile, 1,1'-azobis-cyclohexanecarbonitrile, dimethyl-2,2'-azobisisobutyrate, 4,4'-azobis- 4-cyanovaleric acid, 2,2'-azobis- (2-amidinopropene) dihydrochloride, 2-tert-butylazo-2-cyanopropane, 2,2'-azobis (2-methyl-propionamide) 2 water Azo compounds such as Japanese, 2,2′-azobis [2- (2-imidazolin-2-yl) propene], 2,2′-azobis (2,2,4-trimethylpentane); benzoyl peroxide, Tylethylketone peroxide, cumene hydroperoxide, potassium persulfate, tert-butylperoxyneodecanoate, tert-butylperoxypivalate, tert-butylperoxy-2-ethylhexanoate, tert-butylperoxide Oxyisobutyrate, 1,1-bis-tert-butylperoxy-3,3,5-trimethylcyclohexane, tert-butylperoxylaurate, tert-butylperoxyisophthalate, tert-butylperoxyacetate, tert -Ketone peroxides such as butyl peroxybenzoate, dicumyl peroxide, di-tert-butyl peroxide, di-tert-amyl peroxide; peroxyketals; hydroperoxides Dialkyl peroxides such; diacyl peroxides like; peroxy esters; peroxydicarbonates like; hydrogen peroxide and the like.

前記ラジカル重合開始剤(B)の使用量としては、例えば、ビニル系単量体類(A)100重量部に対して0.5〜25重量部、好ましくは1.0〜20重量部の範囲である。   The amount of the radical polymerization initiator (B) used is, for example, in the range of 0.5 to 25 parts by weight, preferably 1.0 to 20 parts by weight with respect to 100 parts by weight of the vinyl monomers (A). It is.

前記ラジカル重合開始剤(B)の有機溶剤(C)が充填された反応容器内への供給方法としては、特に限定はなく、攪拌下に連続又は断続で反応容器内の有機溶剤(C)へ滴下する方法や、有機溶剤(C)の液中への供給する方法等が挙げられるが、なかでも連続で滴下する方法や、液中への供給する方法が好ましい。また、ラジカル重合開始剤(B)の供給は、前記ビニル系単量体類(A)の供給に平行して供給することが好ましい。   The method for supplying the radical polymerization initiator (B) into the reaction vessel filled with the organic solvent (C) is not particularly limited, and the organic solvent (C) in the reaction vessel may be continuously or intermittently stirred. The method of dripping, the method of supplying the organic solvent (C) into the liquid, and the like can be mentioned. Among them, the method of continuously dripping and the method of supplying into the liquid are preferable. Moreover, it is preferable to supply the radical polymerization initiator (B) in parallel with the supply of the vinyl monomers (A).

本発明の製造方法で用いる有機溶剤(C)としては、種々の有機溶剤を使用することができ、例えば、メタノール、エタノール、n−プロパノール、イソプロパノール、n−ブタノール、イソブタノール、sec−ブタノール、tert−ブタノール、n−ペンタノール、イソペンタノール等のアルキルアルコール類;メチルセロソルブ、エチルセロソルブ、エチレングリコールジメチルエーテル、エチレングリコールジエチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル、プロピレングリコールモノプロピルエーテル、プロピレングリコールジメチルエーテル、プロピレングリコールジエチルエーテル等のグリコールエーテル類;   As the organic solvent (C) used in the production method of the present invention, various organic solvents can be used. For example, methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert -Alkyl alcohols such as butanol, n-pentanol, isopentanol; methyl cellosolve, ethyl cellosolve, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene Glycol ethers such as glycol dimethyl ether and propylene glycol diethyl ether;

ベンゼン、トルエン、キシレン、エチルベンゼン等の芳香族炭化水素類;ソルベッソ100、ソルベッソ150(エクソンモービル社製)等の芳香族炭化水素を含有する混合炭化水素類;n−ペンタン、n−ヘキサン、n−オクタン等の脂肪族炭化水素類;アイソパーC、アイソパーE、エクソールDSP100/140、エクソールD30(いずれもエクソンモービル社製)、IPソルベント1016(出光石油化学社製)等の脂肪族炭化水素を含有する混合炭化水素類;シクロペンタン、シクロヘキサン、メチルシクロヘキサン、エチルシクロヘキサン等の脂環族炭化水素類;テトラヒドロフラン、ジオキサン、ジイソプロピルエーテル、ジ−n−ブチルエーテル等のエーテル類;アセトン、メチルエチルケトン、メチルイソブチルケトン、n−アミルケトン等のケトン類;酢酸メチル、酢酸エチル、酢酸n−プロピル、酢酸イソプロピル、酢酸n−ブチル、酢酸イソブチル、酢酸n−アミル、酢酸イソアミル、酢酸ヘキシル、プロピオン酸エチル、プロピオン酸ブチル、3−エトキスプロピオン酸エチル等のエステル類等が挙げられる。 Aromatic hydrocarbons such as benzene, toluene, xylene and ethylbenzene; mixed hydrocarbons containing aromatic hydrocarbons such as Solvesso 100 and Solvesso 150 (manufactured by ExxonMobil); n-pentane, n-hexane, n- Aliphatic hydrocarbons such as octane; containing aliphatic hydrocarbons such as Isopar C, Isopar E, Exol DSP 100/140, Exol D30 (all manufactured by ExxonMobil), IP Solvent 1016 (manufactured by Idemitsu Petrochemical) Mixed hydrocarbons; cycloaliphatic hydrocarbons such as cyclopentane, cyclohexane, methylcyclohexane, ethylcyclohexane; ethers such as tetrahydrofuran, dioxane, diisopropyl ether, di-n-butyl ether; acetone, methyl ethyl ketone, methyl isobutyl keto Ketones such as n-amyl ketone; methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, n-amyl acetate, isoamyl acetate, hexyl acetate, ethyl propionate, butyl propionate, Examples thereof include esters such as ethyl 3-ethoxypropionate.

前記有機溶剤(C)の使用量としては、例えば、ビニル系単量体類(A)100重量部に対して10〜200重量部、好ましくは15〜150重量部の範囲である。   The amount of the organic solvent (C) used is, for example, in the range of 10 to 200 parts by weight, preferably 15 to 150 parts by weight with respect to 100 parts by weight of the vinyl monomers (A).

前記有機溶剤(C)は、通常、予め反応容器内に充填して使用するが、必要に応じて追加供給しても良い。なお、前記したように、予め反応容器内に充填する有機溶剤(C)中には、ビニル系単量体類(A)の一部が混合されていてもよい。   The organic solvent (C) is usually filled in a reaction vessel in advance, but may be additionally supplied as necessary. As described above, a part of the vinyl monomers (A) may be mixed in the organic solvent (C) filled in the reaction vessel in advance.

本発明の製造方法で得られたビニル系共重合体は、その用途に特に制限はないが、特に高品質で重合物やゲル化物の混入等がないことから、例えば、自動車(新車)の外板用ベースコート塗料用樹脂やトップコート塗料用樹脂、更には自動車補修塗料用樹脂として好適である。   The vinyl copolymer obtained by the production method of the present invention is not particularly limited in its use, but is particularly high in quality and free from polymerized or gelled substances. It is suitable as a base coat paint resin for plates, a resin for top coat paint, and a resin for automobile repair paint.

次に、本発明を参考例、実施例及び比較例により、一層具体的に説明するが、本発明はこれらに限定されるものではない。以下の例中において、特に断りのない限り、「部」および「%」は、それぞれ「重量部」および「重量%」を意味する。   Next, the present invention will be more specifically described with reference examples, examples and comparative examples, but the present invention is not limited to these examples. In the following examples, “part” and “%” mean “part by weight” and “% by weight”, respectively, unless otherwise specified.

尚、以下の例においてはすべて同じステンレス製反応装置を使用しており、反応容器上面部に接続されている各出入り口、反応容器の内部構造の概略は次のようになっている。即ち、反応容器の上面部には、外部に設置のコンデンサーに通じる出入り口、内部に通水し得る形の緊急冷却用の蛇管式コイルの出入り口、および、圧力計に通じる各専用口が設置されており、加えて、温度計、窒素ガス導入口、ビニル系単量体類(A)の供給口およびラジカル重合開始剤(B)の供給口がそれぞれ反応容器の上面から内部に向かって挿入される形で設置されている。前記ビニル系単量体類(A)の供給口先端部は、実施例1〜5では、ビニル系単量体類(A)供給開始時の反応容器内の有機溶剤(C)の液面からの深さが1〜4cmの液中部となるように設定されており、ビニル系単量体類(A)は有機溶剤(C)の液中に直接供給されることとなるが、比較例1〜4では、ビニル系単量体類(A)供給開始時の反応容器内の有機溶剤(C)の液面から23〜26cm上部となるように設定されており、ビニル系単量体類(A)は有機溶剤(C)の液面に滴下により供給されることとなる。また、ラジカル重合開始剤(B)の供給口先端部は、実施例1〜5と比較例1〜4のいずれにおいても、ラジカル重合開始剤(B)供給開始時の反応容器内の有機溶剤(C)の液面から23〜26cm上部となるように設定されており、ラジカル重合開始剤(B)は有機溶剤(C)の液面に滴下により供給されることとなる。一方、反応容器の内部には攪拌シャフト上に2段にわたってそれぞれ4枚で構成される傾斜型パドル式の攪拌翼および前記の蛇管式コイルが付属している。さらに、加熱および冷却は反応容器に付属したジャケット方式を採用し、油を熱媒体としたポンプ循環型であることから局部過熱は避けられる構造となっている。   In the following examples, the same stainless steel reaction apparatus is used, and the outline of the internal structure of each doorway and reaction vessel connected to the upper surface of the reaction vessel is as follows. That is, on the upper surface of the reaction vessel, there are an entrance / exit leading to a condenser installed outside, an entrance / exit of a coiled coil for emergency cooling capable of passing inside, and a dedicated port leading to a pressure gauge. In addition, a thermometer, a nitrogen gas inlet, a vinyl monomer (A) supply port, and a radical polymerization initiator (B) supply port are respectively inserted from the upper surface of the reaction vessel toward the inside. It is installed in the form. In Examples 1 to 5, the tip of the supply port for the vinyl monomers (A) is from the surface of the organic solvent (C) in the reaction vessel at the start of the supply of the vinyl monomers (A). The depth of the liquid is set to be 1 to 4 cm in the liquid, and the vinyl monomers (A) are directly supplied into the liquid of the organic solvent (C). -4, it is set so that it may become 23-26 cm upper part from the liquid level of the organic solvent (C) in the reaction container at the time of the vinyl-type monomer (A) supply start, A) is supplied to the liquid surface of the organic solvent (C) by dropping. Moreover, the supply port front-end | tip part of a radical polymerization initiator (B) is organic solvent in the reaction container at the time of radical polymerization initiator (B) supply start in any of Examples 1-5 and Comparative Examples 1-4. It is set so that it may become 23-26 cm upper part from the liquid level of C), and a radical polymerization initiator (B) will be supplied to the liquid level of an organic solvent (C) by dripping. On the other hand, the reaction vessel is provided with an inclined paddle type stirring blade composed of four pieces in two stages on the stirring shaft, and the above-mentioned coiled coil. Furthermore, the heating and cooling uses a jacket system attached to the reaction vessel, and is a pump circulation type using oil as a heat medium, so that local overheating is avoided.

実施例1(水酸基含有メタクリル系単量体およびエポキシ基含有メタクリル系単量体を含んだビニル系単量体類を、常圧下、液中供給の方式で反応させる例)
前記のステンレス製反応容器にソルベッソ100(芳香族炭化水素系混合溶剤、エクソンモービル社製)223.7部、n−ブタノール107.0部および3−エトキシプロピオン酸エチル42.8部を仕込み、125℃まで昇温し、この温度を保ちながらスチレン104.6部、n−ブチルメタクリレート5.2部、2−エチルヘキシルアクリレート151.7部、2−ヒドロキシエチルメタクリレート104.6部およびグリシジルメタクリレート156.9部からなるビニル系単量体類(A1)と、t−ブチルパーオキシ2−エチルヘキサノエート49.2部およびソルベッソ100 52.3部からなる重合開始剤溶液とをそれぞれ供給ポンプを用いて7時間に亘って同時に並行供給した。尚、ビニル系単量体類(A1)の供給開始時の供給口先端部は、ビニル系単量体類(A1)供給開始時の反応容器内の混合溶剤の液面からの深さが4cmの液中に浸かっている状態であった。一方、ラジカル重合開始剤溶液の供給開始時の供給口先端部は、ラジカル重合開始剤溶液供給開始時の反応容器内の混合溶剤の液面から23cm上部にある状態であった。
Example 1 (Example in which a vinyl monomer containing a hydroxyl group-containing methacrylic monomer and an epoxy group-containing methacrylic monomer is reacted in a liquid supply system under normal pressure)
Into the stainless steel reaction vessel, 223.7 parts of Solvesso 100 (aromatic hydrocarbon-based mixed solvent, manufactured by ExxonMobil Corp.), 107.0 parts of n-butanol and 42.8 parts of ethyl 3-ethoxypropionate were charged, 125 The temperature was raised to 0 ° C, and while maintaining this temperature, 104.6 parts of styrene, 5.2 parts of n-butyl methacrylate, 151.7 parts of 2-ethylhexyl acrylate, 104.6 parts of 2-hydroxyethyl methacrylate, and 156.9 glycidyl methacrylate Parts of vinyl monomer (A1) and a polymerization initiator solution consisting of 49.2 parts of t-butylperoxy 2-ethylhexanoate and 52.3 parts of Solvesso 100 using a feed pump. Simultaneous feeding over 7 hours. In addition, the depth from the liquid surface of the mixed solvent in the reaction container at the time of the supply port front-end | tip part at the time of the supply start of vinylic monomers (A1) is 4 cm It was in the state immersed in the liquid. On the other hand, the supply port tip at the start of supplying the radical polymerization initiator solution was 23 cm above the liquid level of the mixed solvent in the reaction vessel at the start of supplying the radical polymerization initiator solution.

ビニル系単量体類(A1)の供給終了後、同供給口よりソルベッソ100 3.5部をポンプで供給し、ビニル系単量体類(A1)供給ラインを洗浄した。また、重合開始剤溶液の供給終了後、同供給口よりソルベッソ100 1.6部を供給し、重合開始剤溶液供給ラインを洗浄した。ビニル系単量体類(A1)と重合開始剤溶液の供給終了後も8時間に亘って125℃を保って反応を継続させた。その結果、不揮発分が56.0%、ガードナー粘度がE、濁度が0.0の透明なアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ正常なアクリル系共重合体溶液液から遊離している不溶物はいずれの箇所においても認められなかった。   After the completion of the supply of the vinyl monomers (A1), 3.5 parts of Solvesso 100 was supplied by a pump from the supply port, and the vinyl monomers (A1) supply line was washed. Moreover, after completion | finish of supply of a polymerization initiator solution, 1.6 parts of Solvesso 100 was supplied from the supply port, and the polymerization initiator solution supply line was wash | cleaned. The reaction was continued at 125 ° C. for 8 hours even after the completion of the supply of the vinyl monomers (A1) and the polymerization initiator solution. As a result, a transparent acrylic copolymer solution having a nonvolatile content of 56.0%, a Gardner viscosity of E, and a turbidity of 0.0 was obtained. After the completion of the reaction, the inside of the reaction vessel was observed, and no insoluble matter released from the normal acrylic copolymer solution was found in any part.

実施例2(水酸基含有メタクリル系単量体およびエポキシ基含有メタクリル系単量体を含んだビニル系単量体類を加圧下、液中供給の方式で反応させる例)
前記のステンレス製反応容器にソルベッソ100(芳香族炭化水素系混合溶剤、エクソンモービル社製)190.0部を仕込み、160℃に向けて昇温した。途中100℃にて窒素ガスにて反応容器の内圧を相対圧0.1MPaにし、さらに160℃まで昇温した。160℃に到達した後、この温度を保ちながらスチレン135.3部、n−ブチルメタクリレート6.8部、2−エチルヘキシルアクリレート196.1部、2−ヒドロキシエチルメタクリレート135.3部およびグリシジルメタクリレート202.9部からなるビニル系単量体類(A2)と、ジ−t−ブチルパーオキサイド33.8部およびソルベッソ100 33.8部からなる重合開始剤溶液とをそれぞれ供給ポンプを用いて3時間に亘って同時に並行供給した。尚、ビニル系単量体類(A2)の供給開始時の供給口先端部は、ビニル系単量体類(A1)供給開始時の反応容器内の混合溶剤の液面からの深さが1cmの液中に浸かっている状態であった。一方、ラジカル重合開始剤溶液の供給開始時の供給口先端部は、ラジカル重合開始剤溶液供給開始時の反応容器内の混合溶剤の液面から26cm上部にある状態であった。
Example 2 (Example in which a vinyl monomer containing a hydroxyl group-containing methacrylic monomer and an epoxy group-containing methacrylic monomer is reacted in a liquid supply system under pressure)
190.0 parts of Solvesso 100 (aromatic hydrocarbon-based mixed solvent, manufactured by ExxonMobil Corp.) was charged into the stainless steel reaction vessel, and the temperature was raised to 160 ° C. The internal pressure of the reaction vessel was adjusted to a relative pressure of 0.1 MPa with nitrogen gas at 100 ° C., and the temperature was further raised to 160 ° C. After reaching 160 ° C., while maintaining this temperature, 135.3 parts of styrene, 6.8 parts of n-butyl methacrylate, 196.1 parts of 2-ethylhexyl acrylate, 135.3 parts of 2-hydroxyethyl methacrylate, and 202. glycidyl methacrylate. 9 parts of vinyl monomer (A2) and 33.8 parts of di-t-butyl peroxide and 33.8 parts of Solvesso 100 in 3 hours using a feed pump, respectively. Simultaneously supplied in parallel. In addition, the depth from the liquid surface of the mixed solvent in the reaction container at the start of the supply port at the start of the supply of the vinyl monomers (A2) is 1 cm. It was in the state immersed in the liquid. On the other hand, the supply port tip at the start of supplying the radical polymerization initiator solution was 26 cm above the liquid level of the mixed solvent in the reaction vessel at the start of supplying the radical polymerization initiator solution.

ビニル系単量体類(A2)の供給終了後、同供給口よりソルベッソ100 4.0部をポンプで供給し、ビニル系単量体類(A2)供給ラインを洗浄した。また、重合開始剤溶液の供給終了後、同供給口よりソルベッソ100 4.0部を押出し供給し、重合開始剤溶液供給ラインを洗浄した。この時点での反応容器内圧力は0.4MPaであった。ビニル系単量体類(A2)と重合開始剤溶液の供給終了後も2時間に亘って160℃を保って反応を継続させた。その後冷却し、途中100℃において反応容器の内圧を常圧に戻した後、n−ブタノール58.0部を添加した。その結果、不揮発分が72.2%、ガードナー粘度がX−Y、濁度が0.0の透明なアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ正常なアクリル系共重合体溶液から遊離している不溶物はいずれの箇所においても認められなかった。   After the completion of the supply of the vinyl monomers (A2), 4.0 parts of Solvesso 100 was supplied by a pump from the supply port, and the vinyl monomers (A2) supply line was washed. Further, after the completion of the supply of the polymerization initiator solution, 4.0 parts of Solvesso 100 was extruded and supplied from the supply port, and the polymerization initiator solution supply line was washed. At this time, the pressure in the reaction vessel was 0.4 MPa. The reaction was continued at 160 ° C. for 2 hours even after the completion of the supply of the vinyl monomers (A2) and the polymerization initiator solution. Then, after cooling and returning the internal pressure of the reaction vessel to normal pressure at 100 ° C., 58.0 parts of n-butanol was added. As a result, a transparent acrylic copolymer solution having a nonvolatile content of 72.2%, a Gardner viscosity of XY, and a turbidity of 0.0 was obtained. After the completion of the reaction, the inside of the reaction vessel was observed, and no insoluble matter released from the normal acrylic copolymer solution was found in any part.

実施例3(シクロカーボネート基含有メタクリル系単量体、水酸基含有メタクリル系単量体およびカルボキシル基含有メタクリル系単量体を含んだビニル系共重合体類を常圧下、液中供給の方式で反応させる例)
前記のステンレス製反応容器にソルベッソ100 224.1部、n−ブタノール55.5部および3−エトキシプロピオン酸エチル43.4部を仕込み、125℃まで昇温し、この温度を保ちながらスチレン79.6部、2−エチルヘキシルアクリレート217.6部、2−ヒドロキシエチルメタクリレート98.2部、グリセリルシクロカーボネートメタクリレート75.9部およびメタクリル酸59.4部からなるビニル系単量体類(A3)と、t−ブチルパーオキシ2−エチルヘキサノエート33.4部、ジ−t−ブチルパーオキサイド1.6部、ソルベッソ100 53.1部およびn−ブタノール53.1部からなる重合開始剤溶液とをそれぞれ供給ポンプを用いて7時間に亘って同時に並行供給した。尚、ビニル系単量体類(A3)の供給開始時の供給口先端部は、ビニル系単量体類(A3)供給開始時の反応容器内の混合溶剤の液面からの深さが3cmの液中に浸かっている状態であった。一方、ラジカル重合開始剤溶液の供給開始時の供給口先端部は、ラジカル重合開始剤溶液供給開始時の反応容器内の混合溶剤の液面から24cm上部にある状態であった。
Example 3 (reacting a vinyl copolymer containing a cyclocarbonate group-containing methacrylic monomer, a hydroxyl group-containing methacrylic monomer, and a carboxyl group-containing methacrylic monomer in a liquid supply system under normal pressure) Example)
The stainless steel reaction vessel was charged with 224.1 parts of Solvesso 100, 55.5 parts of n-butanol, and 43.4 parts of ethyl 3-ethoxypropionate, and the temperature was raised to 125 ° C. Vinyl monomers (A3) comprising 6 parts, 217.6 parts 2-ethylhexyl acrylate, 98.2 parts 2-hydroxyethyl methacrylate, 75.9 parts glyceryl cyclocarbonate methacrylate, and 59.4 parts methacrylic acid; a polymerization initiator solution comprising 33.4 parts of t-butylperoxy 2-ethylhexanoate, 1.6 parts of di-t-butyl peroxide, 53.1 parts of Solvesso 100, and 53.1 parts of n-butanol. Each was simultaneously fed in parallel for 7 hours using a feed pump. In addition, the depth from the liquid surface of the mixed solvent in the reaction vessel at the start of the supply port at the start of the supply of the vinyl monomers (A3) is 3 cm. It was in the state immersed in the liquid. On the other hand, the supply port tip at the start of supply of the radical polymerization initiator solution was 24 cm above the liquid level of the mixed solvent in the reaction vessel at the start of supply of the radical polymerization initiator solution.

ビニル系単量体類(A3)の供給終了後、同供給口よりソルベッソ100 3.5部をポンプで供給し、ビニル系単量体類(A3)供給ラインを洗浄した。また、重合開始剤溶液の供給終了後、同供給口よりソルベッソ100 1.6部を供給し、重合開始剤溶液供給ラインを洗浄した。ビニル系単量体類(A3)と重合開始剤溶液の供給終了後も8時間に亘って125℃を保って反応を継続させた。その結果、不揮発分が56.0%、ガードナー粘度がV、濁度が0.0の透明なアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ正常なアクリル系共重合体溶液から遊離している不溶物はいずれの箇所においても認められなかった。   After the completion of the supply of the vinyl monomers (A3), 3.5 parts of Solvesso 100 was supplied by a pump from the supply port, and the vinyl monomers (A3) supply line was washed. Moreover, after completion | finish of supply of a polymerization initiator solution, 1.6 parts of Solvesso 100 was supplied from the supply port, and the polymerization initiator solution supply line was wash | cleaned. The reaction was continued at 125 ° C. for 8 hours even after the completion of the supply of the vinyl monomers (A3) and the polymerization initiator solution. As a result, a transparent acrylic copolymer solution having a nonvolatile content of 56.0%, a Gardner viscosity of V, and a turbidity of 0.0 was obtained. After the completion of the reaction, the inside of the reaction vessel was observed, and no insoluble matter released from the normal acrylic copolymer solution was observed at any location.

実施例4(シクロカーボネート基含有メタクリル系単量体および無水酸基含有ビニル系単量体を含んだビニル系単量体類を常圧下、液中供給の方式で反応させる例)
前記のステンレス製反応容器にソルベッソ100 90.6部および酢酸ブチル287.1部を仕込み、125℃まで昇温し、この温度を保ちながらスチレン143.5部、2−エチルヘキシルメタクリレート120.1部、2−エチルヘキシルアクリレート47.4部、グリセリルシクロカーボネートメタクリレート47.8部および無水マレイン酸119.6部からなるビニル系単量体類(A4)と、t−ブチルパーオキシ2−エチルヘキサノエート43.1部およびソルベッソ100 95.7部からなる重合開始剤溶液とをそれぞれ供給ポンプを用いて6時間に亘って同時に並行供給した。尚、ビニル系単量体類(A4)の供給開始時の供給口先端部は、ビニル系単量体類(A4)供給開始時の反応容器内の混合溶剤の液面からの深さが4cmの液中に浸かっている状態であった。一方、ラジカル重合開始剤溶液の供給開始時の供給口先端部は、ラジカル重合開始剤溶液供給開始時の反応容器内の混合溶剤の液面から23cm上部にある状態であった。
Example 4 (Example in which a vinyl monomer containing a cyclocarbonate group-containing methacrylic monomer and a hydroxyl group-free vinyl monomer is reacted in a liquid supply system under normal pressure)
The stainless steel reaction vessel was charged with 90.6 parts of Solvesso 100 and 287.1 parts of butyl acetate, heated to 125 ° C., while maintaining this temperature, 143.5 parts of styrene, 120.1 parts of 2-ethylhexyl methacrylate, Vinyl monomers (A4) composed of 47.4 parts of 2-ethylhexyl acrylate, 47.8 parts of glyceryl cyclocarbonate methacrylate and 119.6 parts of maleic anhydride, and t-butylperoxy 2-ethylhexanoate 43 A polymerization initiator solution consisting of 0.1 part and 95.7 parts of Solvesso 100 were simultaneously fed in parallel for 6 hours using a feed pump. In addition, the depth from the liquid level of the mixed solvent in the reaction vessel at the time of starting the supply of the vinyl monomer (A4) is 4 cm at the supply port tip at the start of the supply of the vinyl monomer (A4). It was in the state immersed in the liquid. On the other hand, the supply port tip at the start of supplying the radical polymerization initiator solution was 23 cm above the liquid level of the mixed solvent in the reaction vessel at the start of supplying the radical polymerization initiator solution.

ビニル系単量体類(A4)の供給終了後、同供給口よりソルベッソ100 3.5部をポンプで供給し、ビニル系単量体類(A4)供給ラインを洗浄した。また、重合開始剤溶液の供給終了後、同供給口よりソルベッソ100 1.6部を供給し、重合開始剤溶液供給ラインを洗浄した。ビニル系単量体類(A4)と重合開始剤溶液の供給終了後も8時間に亘って125℃を保って反応を継続させた。その結果、不揮発分が52.2%、ガードナー粘度がS、濁度が0.0の透明なアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ正常なアクリル系共重合体溶液から遊離している不溶物はいずれの箇所においても認められなかった。   After the completion of the supply of the vinyl monomers (A4), 3.5 parts of Solvesso 100 was supplied from the supply port with a pump, and the vinyl monomers (A4) supply line was washed. Moreover, after completion | finish of supply of a polymerization initiator solution, 1.6 parts of Solvesso 100 was supplied from the supply port, and the polymerization initiator solution supply line was wash | cleaned. The reaction was continued at 125 ° C. for 8 hours after the end of the supply of the vinyl monomers (A4) and the polymerization initiator solution. As a result, a transparent acrylic copolymer solution having a nonvolatile content of 52.2%, a Gardner viscosity of S, and a turbidity of 0.0 was obtained. After the completion of the reaction, the inside of the reaction vessel was observed, and no insoluble matter released from the normal acrylic copolymer solution was observed at any location.

実施例5(シクロカーボネート基含有メタクリル系単量体および無水酸基含有ビニル系単量体を含んだビニル系単量体類を常圧下、断続的な液中供給の方式で反応させる例)
前記のステンレス製反応容器にソルベッソ100 90.6部および酢酸ブチル287.1部を仕込み、125℃まで昇温し、この温度を保ちながらスチレン143.5部、2−エチルヘキシルメタクリレート120.1部、2−エチルヘキシルアクリレート47.4部、グリセリルシクロカーボネートメタクリレート47.8部および無水マレイン酸119.6部からなるビニル系単量体類(A4)を均等に10分割したものを1分割分ずつ、1分割分と次の1分割分の供給間隔を40分間開けながら計6時間に亘って断続的に供給した。各1分割分はそれぞれ実施例4の場合と同じ供給口に繋がるものの、ポンプ自体は経由しないでバイパスラインを通して一度に供給した。一方、t−ブチルパーオキシ2−エチルヘキサノエート43.1部およびソルベッソ100 95.7部からなる重合開始剤溶液は供給ポンプを用いて6時間に亘って連続供給した。尚、ビニル系単量体類(A4)の供給開始時の供給口先端部は、ビニル系単量体類(A4)供給開始時の反応容器内の混合溶剤の液面からの深さが4cmの液中に浸かっている状態であった。一方、ラジカル重合開始剤溶液の供給開始時の供給口先端部は、ラジカル重合開始剤溶液供給開始時の反応容器内の混合溶剤の液面から23cm上部にある状態であった。
Example 5 (Example in which a vinyl monomer containing a cyclocarbonate group-containing methacrylic monomer and a hydroxyl group-free vinyl monomer is reacted in an intermittent liquid supply system under normal pressure)
The stainless steel reaction vessel was charged with 90.6 parts of Solvesso 100 and 287.1 parts of butyl acetate, heated to 125 ° C., while maintaining this temperature, 143.5 parts of styrene, 120.1 parts of 2-ethylhexyl methacrylate, A vinyl monomer (A4) consisting of 47.4 parts of 2-ethylhexyl acrylate, 47.8 parts of glyceryl cyclocarbonate methacrylate and 119.6 parts of maleic anhydride is equally divided into 10 parts by 1 The supply was intermittently supplied over a total of 6 hours with the supply interval of the divided portion and the next divided portion being opened for 40 minutes. Each 1-division was connected to the same supply port as in Example 4, but was supplied all at once through the bypass line without going through the pump itself. On the other hand, a polymerization initiator solution consisting of 43.1 parts of t-butylperoxy 2-ethylhexanoate and 95.7 parts of Solvesso 100 was continuously supplied over 6 hours using a supply pump. In addition, the depth from the liquid level of the mixed solvent in the reaction vessel at the time of starting the supply of the vinyl monomer (A4) is 4 cm at the supply port tip at the start of the supply of the vinyl monomer (A4). It was in the state immersed in the liquid. On the other hand, the supply port tip at the start of supplying the radical polymerization initiator solution was 23 cm above the liquid level of the mixed solvent in the reaction vessel at the start of supplying the radical polymerization initiator solution.

ビニル系単量体類(A4)の供給終了後、同バイパスラインよりソルベッソ100 1.6部を供給ポンプを使用して供給し、ビニル系単量体類(A4)供給のバイパスラインを洗浄した。また、重合開始剤溶液の供給終了後、同供給口よりソルベッソ100 1.6部を供給し、重合開始剤溶液供給ラインを洗浄した。ビニル系単量体類(A4)と重合開始剤溶液の供給終了後も8時間に亘って125℃を保って反応を継続させた。その結果、不揮発分が51.8%、ガードナー粘度がR−S、濁度が0.0の透明なアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ正常なアクリル系共重合体溶液から遊離している不溶物はいずれの箇所においても認められなかった。   After the completion of the supply of vinyl monomers (A4), 1.6 parts of Solvesso 100 was supplied from the bypass line using a supply pump, and the bypass line for supplying the vinyl monomers (A4) was washed. . Moreover, after completion | finish of supply of a polymerization initiator solution, 1.6 parts of Solvesso 100 was supplied from the supply port, and the polymerization initiator solution supply line was wash | cleaned. The reaction was continued at 125 ° C. for 8 hours after the end of the supply of the vinyl monomers (A4) and the polymerization initiator solution. As a result, a transparent acrylic copolymer solution having a nonvolatile content of 51.8%, a Gardner viscosity of RS, and a turbidity of 0.0 was obtained. After the completion of the reaction, the inside of the reaction vessel was observed, and no insoluble matter released from the normal acrylic copolymer solution was observed at any location.

比較例1(水酸基含有メタクリル系単量体およびエポキシ基含有メタクリル系単量体を含んだビニル系単量体類を常圧下、液面への滴下による供給方式で反応させる例)
ビニル系単量体類(A1)を、ビニル系単量体類(A1)の供給開始時には供給口先端部がビニル系単量体類(A1)供給開始時の反応容器内の混合溶剤の液面から23cm上部となるように設定された供給口から気相部を通して混合溶剤の液面に向けて滴下することにより供給した以外は実施例1と同様にして、アクリル系共重合体の合成を行った。尚、この際、ビニル系単量体類(A1)の供給開始から終了に至るまで供給口先端部が混合溶剤を含有してなる反応液に浸る状態にはならなかった。その結果、不揮発分が56.0%、ガードナー粘度がE、濁度が1.3の濁りが視認できるアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ攪拌翼の一部および反応終了時点の液面部付近の反応容器側面部にゲル状物が観察された。このゲル状物はテトラハイドロフランに不溶であった。
Comparative Example 1 (Example in which a vinyl monomer containing a hydroxyl group-containing methacrylic monomer and an epoxy group-containing methacrylic monomer is reacted in a supply system by dropping onto a liquid surface under normal pressure)
When the supply of the vinyl monomer (A1) is started, the tip of the supply port at the beginning of the supply of the vinyl monomer (A1) is a liquid mixture of the solvent in the reaction vessel at the start of the supply of the vinyl monomer (A1). The acrylic copolymer was synthesized in the same manner as in Example 1 except that it was supplied by dropping from the supply port set to be 23 cm above the surface through the gas phase portion toward the liquid surface of the mixed solvent. went. At this time, the tip of the supply port was not immersed in the reaction solution containing the mixed solvent from the start to the end of the supply of the vinyl monomers (A1). As a result, an acrylic copolymer solution with a non-volatile content of 56.0%, a Gardner viscosity of E, and a turbidity of 1.3 that can be visually recognized was obtained. When the inside of the reaction vessel was observed after the completion of the reaction, a gel-like substance was observed on a part of the stirring blade and on the side surface of the reaction vessel near the liquid surface at the end of the reaction. This gel was insoluble in tetrahydrofuran.

比較例2(水酸基含有メタクリル系単量体およびエポキシ基含有メタクリル系単量体を含んだビニル系単量体類を加圧下、液面への滴下による供給方式で反応させる例)
ビニル系単量体類(A2)を、ビニル系単量体類(A2)の供給開始時には供給口先端部がビニル系単量体類(A2)供給開始時の反応容器内の混合溶剤の液面から26cm上部となるように設定された供給口から気相部を通して混合溶剤の液面に向けて滴下することにより供給した以外は実施例2と同様にして、アクリル系共重合体の合成を行った。この時点での反応容器内圧力は0.4MPaであった。尚、この際、ビニル系単量体類(A2)の供給開始から終了に至るまで供給口先端部が混合溶剤を含有してなる反応液に浸る状態にはならなかった。その結果、不揮発分が71.5%、ガードナー粘度がX−Y、濁度が2.5の明らかに濁りが視認できるアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ攪拌翼の一部、反応終了時点の液面部付近の釜側面部および反応中気相部であった釜上部にゲル状物が観察された。このゲル状物はテトラハイドロフランに不溶であった。
Comparative Example 2 (Example in which a vinyl monomer containing a hydroxyl group-containing methacrylic monomer and an epoxy group-containing methacrylic monomer is reacted in a supply system by dropping onto a liquid surface under pressure)
When the supply of the vinyl monomer (A2) is started, the tip of the supply port at the start of the supply of the vinyl monomer (A2) is a solution of the mixed solvent in the reaction vessel at the start of the supply of the vinyl monomer (A2). The acrylic copolymer was synthesized in the same manner as in Example 2 except that it was supplied by dropping from the supply port set to 26 cm above the surface to the liquid surface of the mixed solvent through the gas phase portion. went. At this time, the pressure in the reaction vessel was 0.4 MPa. At this time, the tip of the supply port was not immersed in the reaction solution containing the mixed solvent from the start to the end of the supply of the vinyl monomers (A2). As a result, an acrylic copolymer solution having a non-volatile content of 71.5%, a Gardner viscosity of XY, and a turbidity of 2.5, in which turbidity was clearly visible, was obtained. When the inside of the reaction vessel was observed after completion of the reaction, a gel-like substance was observed on a part of the stirring blade, on the side of the kettle near the liquid level at the end of the reaction, and on the top of the kettle which was the gas phase during reaction. This gel was insoluble in tetrahydrofuran.

比較例3(シクロカーボネート基含有メタクリル系単量体、水酸基含有メタアクリル系単量体およびカルボキシル基含有メタクリル系単量体を含んだビニル系単量体類を常圧下、液面への滴下による供給方式で反応させる例)
ビニル系単量体類(A3)を、ビニル系単量体類(A3)の供給開始時には供給口先端部がビニル系単量体類(A3)供給開始時の反応容器内の混合溶剤の液面から24cm上部となるように設定された供給口から気相部を通して混合溶剤の液面に向けて滴下することにより供給した以外は実施例3と同様にして、アクリル系共重合体の合成を行った。尚、この際、ビニル系単量体類(A3)の供給開始から終了に至るまで供給口先端部が混合溶剤を含有してなる反応液に浸る状態にはならなかった。その結果、不揮発分が56.4%、ガードナー粘度がV、濁度が4.3の明らかに濁りが視認できるアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ攪拌翼の一部、反応終了時点の液面部付近の反応容器側面部にゲル状物が観察された。特に攪拌翼へのゲル状物付着が顕著であった。このゲル状物はテトラハイドロフランに不溶であった。
Comparative Example 3 (by dropping a vinyl monomer containing a cyclocarbonate group-containing methacrylic monomer, a hydroxyl group-containing methacrylic monomer, and a carboxyl group-containing methacrylic monomer to the liquid surface under normal pressure Example of reaction by supply method)
When the supply of the vinyl monomer (A3) is started, the tip of the supply port at the beginning of the supply of the vinyl monomer (A3) is a liquid mixture of the solvent in the reaction vessel at the start of the supply of the vinyl monomer (A3). The acrylic copolymer was synthesized in the same manner as in Example 3 except that it was supplied by dropping from the supply port set to be 24 cm above the surface through the gas phase portion toward the liquid surface of the mixed solvent. went. At this time, the tip of the supply port was not immersed in the reaction solution containing the mixed solvent from the start to the end of the supply of the vinyl monomers (A3). As a result, an acrylic copolymer solution having a non-volatile content of 56.4%, a Gardner viscosity of V, and a turbidity of 4.3 in which turbidity was clearly visible was obtained. When the inside of the reaction vessel was observed after the completion of the reaction, a gel-like substance was observed on a part of the stirring blade and on the side surface of the reaction vessel near the liquid surface at the end of the reaction. In particular, the adhesion of the gel-like material to the stirring blade was remarkable. This gel was insoluble in tetrahydrofuran.

比較例4(シクロカーボネート基含有メタクリル系単量体、無水酸基含有単量体およびカルボキシル基含有メタクリル系単量体を含んだビニル系単量体類を常圧下、液面への滴下による供給方式で反応させる例)
ビニル系単量体類(A4)を、ビニル系単量体類(A4)の供給開始時には供給口先端部がビニル系単量体類(A4)供給開始時の反応容器内の混合溶剤の液面から23cm上部となるように設定された供給口から気相部を通して混合溶剤の液面に向けて滴下することにより供給した以外は実施例4と同様にして、アクリル系共重合体の合成を行った。尚、この際、ビニル系単量体類(A4)の供給開始から終了に至るまで供給口先端部が混合溶剤を含有してなる反応液に浸る状態にはならなかった。その結果、不揮発分が52.0%、ガードナー粘度がR−S、濁度が4.8の明らかに濁りが視認できるアクリル系共重合体溶液が得られた。反応終了後、反応容器の内部を観察したところ攪拌翼の一部、反応終了時点の液面部付近の反応容器側面部にゲル状物が観察された。特に攪拌翼へのゲル状物付着が顕著であった。このゲル状物はテトラハイドロフランに不溶であった。
Comparative Example 4 (Supplying method by dropping vinyl monomers containing cyclocarbonate group-containing methacrylic monomer, hydroxyl-free monomer and carboxyl group-containing methacrylic monomer to liquid surface under normal pressure Example)
When the supply of the vinyl monomer (A4) is started, the tip of the supply port at the start of the supply of the vinyl monomer (A4) is a liquid mixture of the solvent in the reaction vessel at the start of the supply of the vinyl monomer (A4). The acrylic copolymer was synthesized in the same manner as in Example 4 except that it was supplied by dropping from the supply port set to be 23 cm above the surface through the gas phase portion toward the liquid surface of the mixed solvent. went. At this time, the tip of the supply port was not immersed in the reaction solution containing the mixed solvent from the start to the end of the supply of the vinyl monomers (A4). As a result, an acrylic copolymer solution with a non-volatile content of 52.0%, a Gardner viscosity of R—S, and a turbidity of 4.8, in which turbidity was clearly visible, was obtained. When the inside of the reaction vessel was observed after the completion of the reaction, a gel-like substance was observed on a part of the stirring blade and on the side surface of the reaction vessel near the liquid surface at the end of the reaction. In particular, the adhesion of the gel-like material to the stirring blade was remarkable. This gel was insoluble in tetrahydrofuran.

上記実施例1〜5および比較例1〜4における配合、得られた各アクリル系共重合体の性状および反応後のゲル化物の発生状況釜内の様子について第1表および第2表にまとめた。   Tables 1 and 2 summarize the formulations in Examples 1 to 5 and Comparative Examples 1 to 4 above, the properties of the obtained acrylic copolymers and the occurrence of gelled products after the reaction. .

Figure 2007308628
Figure 2007308628

Figure 2007308628
Figure 2007308628

濁度の測定方法
日本電色社製の濁度測定器「TURBIDMETER MODEL T−2600DA」を使用し、校正液をイオン交換水として測定したもの。測定の際に使用したセルのサイズは50mm×36mm×55mm。

Method of measuring turbidity A turbidity measuring device “TURBIDMETER MODEL T-2600DA” manufactured by Nippon Denshoku Co., Ltd. was used, and the calibration solution was measured as ion-exchanged water. The size of the cell used for the measurement was 50 mm × 36 mm × 55 mm.

Claims (9)

エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる1種以上のビニル系単量体(a1)を必須成分とするビニル系単量体類(A)(ただし、エポキシ基含有ビニル系単量体とカルボキシル基含有ビニル系単量体の併用と、無水酸基含有ビニル系単量体と水酸基含有ビニル系単量体の併用を除く。)と、ラジカル重合開始剤(B)を、それぞれ別の供給部から反応容器内に供給してラジカル重合させるビニル系共重合体の製造方法であって、前記ビニル系単量体類(A)を有機溶剤(C)の液中に攪拌下に液状で連続又は断続で供給することを特徴とするビニル系共重合体の製造方法。 Selected from the group consisting of epoxy group-containing vinyl monomers, cyclocarbonate group-containing vinyl monomers, carboxyl group-containing vinyl monomers, hydroxyl-free vinyl monomers and hydroxyl-containing vinyl monomers Vinyl monomers (A) having at least one vinyl monomer (a1) as an essential component (however, a combination of an epoxy group-containing vinyl monomer and a carboxyl group-containing vinyl monomer, And a radical polymerization initiator (B) supplied from a separate supply unit into the reaction vessel, respectively, to be radically polymerized. A vinyl copolymer, characterized in that the vinyl monomers (A) are continuously or intermittently supplied in liquid form with stirring to the organic solvent (C). A method for producing a polymer. ビニル系単量体類(A)100重量%に対して、ビニル系単量体(a1)の割合が10〜70重量%である請求項1に記載のビニル系共重合体の製造方法。 The method for producing a vinyl copolymer according to claim 1, wherein the proportion of the vinyl monomer (a1) is 10 to 70 wt% with respect to 100 wt% of the vinyl monomers (A). ビニル系単量体類(A)100重量%に対して、ビニル系単量体(a1)の含有率が10〜70重量%で、かつ、エポキシ基含有ビニル系単量体の含有率が60重量%以下、シクロカーボネート基含有ビニル系単量体の含有率が30重量%以下、カルボキシル基含有ビニル系単量体および無水酸基含有ビニル系単量体の合計の含有率が50重量%以下、水酸基含有ビニル系単量体の含有率が50重量%以下である請求項1に記載のビニル系共重合体の製造方法。 The vinyl monomer (a1) content is 10 to 70% by weight and the epoxy group-containing vinyl monomer content is 60% with respect to 100% by weight of the vinyl monomers (A). % By weight, the content of the cyclocarbonate group-containing vinyl monomer is 30% by weight or less, the total content of the carboxyl group-containing vinyl monomer and the hydroxyl-free vinyl monomer is 50% by weight or less, The method for producing a vinyl copolymer according to claim 1, wherein the content of the hydroxyl group-containing vinyl monomer is 50% by weight or less. ビニル系単量体類(A)が、エポキシ基含有ビニル系単量体、シクロカーボネート基含有ビニル系単量体、カルボキシル基含有ビニル系単量体、無水酸基含有ビニル系単量体および水酸基含有ビニル系単量体からなる群から選ばれる2種以上のビニル系単量体を含有するビニル系単量体混合物である請求項1に記載のビニル系共重合体の製造方法。 Vinyl monomers (A) are epoxy group-containing vinyl monomers, cyclocarbonate group-containing vinyl monomers, carboxyl group-containing vinyl monomers, hydroxyl-free vinyl monomers, and hydroxyl-containing monomers. The method for producing a vinyl copolymer according to claim 1, which is a vinyl monomer mixture containing two or more vinyl monomers selected from the group consisting of vinyl monomers. ビニル系単量体類(A)が、エポキシ基含有(メタ)アクリル系単量体、シクロカーボネート基含有(メタ)アクリル系単量体、カルボキシル基含有(メタ)アクリル系単量体および水酸基含有(メタ)アクリル系単量体からなる群から選ばれる1種以上の(メタ)アクリル系単量体(a11)を必須成分とする(メタ)アクリル系単量体類(A1)である請求項1〜4のいずれか1項に記載のビニル系共重合体の製造方法。 Vinyl monomers (A) are epoxy group-containing (meth) acrylic monomers, cyclocarbonate group-containing (meth) acrylic monomers, carboxyl group-containing (meth) acrylic monomers, and hydroxyl group-containing The (meth) acrylic monomer (A1) comprising one or more (meth) acrylic monomers (a11) selected from the group consisting of (meth) acrylic monomers as essential components. The manufacturing method of the vinyl-type copolymer of any one of 1-4. ラジカル重合開始剤(B)が有機過酸化物である請求項1〜5のいずれか1項に記載のビニル系共重合体の製造方法。 The method for producing a vinyl copolymer according to any one of claims 1 to 5, wherein the radical polymerization initiator (B) is an organic peroxide. ビニル系単量体類(A)の供給終了後、更にラジカル反応を続行して熟成させる請求項1〜5のいずれか1項に記載のビニル系共重合体の製造方法。 The method for producing a vinyl copolymer according to any one of claims 1 to 5, wherein after completion of the supply of the vinyl monomers (A), the radical reaction is further continued and ripened. ビニル系単量体類(A)を、1〜10時間かけて供給しつつ60〜200℃の温度でラジカル反応させた後、更に60〜200℃の温度で30分〜12時間ラジカル反応を続行して熟成させる請求項1〜5のいずれか1項に記載のビニル系共重合体の製造方法。 The radical reaction is continued at a temperature of 60 to 200 ° C. for 30 minutes to 12 hours after supplying the vinyl monomers (A) at a temperature of 60 to 200 ° C. while supplying them for 1 to 10 hours. The method for producing a vinyl copolymer according to any one of claims 1 to 5, wherein the vinyl copolymer is aged. ビニル系単量体類(A)を60〜200℃の温度、0.01〜1MPaの加圧下でラジカル反応させる請求項1〜5のいずれか1項に記載のビニル系共重合体の製造方法。

The method for producing a vinyl copolymer according to any one of claims 1 to 5, wherein the vinyl monomers (A) are subjected to a radical reaction at a temperature of 60 to 200 ° C and a pressure of 0.01 to 1 MPa. .

JP2006140149A 2006-05-19 2006-05-19 Method for producing vinylic copolymer Pending JP2007308628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006140149A JP2007308628A (en) 2006-05-19 2006-05-19 Method for producing vinylic copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006140149A JP2007308628A (en) 2006-05-19 2006-05-19 Method for producing vinylic copolymer

Publications (1)

Publication Number Publication Date
JP2007308628A true JP2007308628A (en) 2007-11-29

Family

ID=38841789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006140149A Pending JP2007308628A (en) 2006-05-19 2006-05-19 Method for producing vinylic copolymer

Country Status (1)

Country Link
JP (1) JP2007308628A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016507608A (en) * 2012-12-19 2016-03-10 アルケマ フランス Organic resins having cyclic carbonate groups and aqueous dispersions for crosslinked polyurethanes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016507608A (en) * 2012-12-19 2016-03-10 アルケマ フランス Organic resins having cyclic carbonate groups and aqueous dispersions for crosslinked polyurethanes

Similar Documents

Publication Publication Date Title
US8476384B2 (en) Olefin acrylate emulsion copolymerization
JP5032498B2 (en) Method for free radical polymerization of vinyl monomers
EP2514790B1 (en) Copolymer dispersion for water whitening resistant coatings
TW320639B (en)
CN104513344A (en) Waterborne epoxy modified acrylic resin and aqueous dispersion thereof
CN104513345A (en) Preparation method for waterborne epoxy modified acrylic resin and aqueous dispersion thereof
WO2011002831A1 (en) Composite polymer emulsion
CN103509419A (en) Wood protection paints
WO2011080821A1 (en) Method for producing resin dispersion for antifouling coating
TW201016773A (en) Aqueous emulsion
JP4895072B2 (en) Method for producing acrylic aqueous pressure-sensitive adhesive composition
JP2007308628A (en) Method for producing vinylic copolymer
EP1099712B1 (en) Emulsion polymers
CN108102023A (en) A kind of preparation of silicone-contained acrylic resin solution and its application in antifouling paint
JP5011162B2 (en) Aqueous resin composition, method for producing the same, and painted product
EP1197502B1 (en) Waterborne resin emulsion and waterborne coating
TWI294887B (en)
JP5944798B2 (en) Aqueous dispersion and floor brightener using the same
JP6041776B2 (en) Thickener, method for producing thickener, vinyl alcohol polymer, and method for producing vinyl alcohol polymer
CN109312122B (en) Aqueous resin dispersion
JP3801763B2 (en) Water-based ink composition
JP2018135401A (en) Adhesive for label
JP2003040946A (en) Method for producing polyolefin-based graft copolymer
JP2005187608A (en) Acrylic aqueous adhesive composition and adhesive
JP2023148081A (en) Composition comprising polymer having constitutional unit derived from (meth)acrylic acid tertiary alkyl ester and acid group

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090507

A977 Report on retrieval

Effective date: 20100729

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120203

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20120529