JPH048751A - Acrylic resin composition - Google Patents
Acrylic resin compositionInfo
- Publication number
- JPH048751A JPH048751A JP11464290A JP11464290A JPH048751A JP H048751 A JPH048751 A JP H048751A JP 11464290 A JP11464290 A JP 11464290A JP 11464290 A JP11464290 A JP 11464290A JP H048751 A JPH048751 A JP H048751A
- Authority
- JP
- Japan
- Prior art keywords
- acrylic resin
- resin composition
- organic carboxylic
- carboxylic acid
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004925 Acrylic resin Substances 0.000 title claims abstract description 27
- 229920000178 Acrylic resin Polymers 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 150000001735 carboxylic acids Chemical class 0.000 abstract description 6
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 abstract description 4
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 2
- 239000003607 modifier Substances 0.000 description 13
- 239000011342 resin composition Substances 0.000 description 10
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- -1 fatty acid glycerin ester Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、成形加工性にすぐれ耐熱性の良好なアクリル
樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an acrylic resin composition that has excellent moldability and heat resistance.
（従来の技術）
アクリル樹脂は、透明性や耐候性にすぐれるために、そ
の成形品は、従来、主として光学分野や建材分野に広く
用いられている。特に、射出成形品は、ランプカバー、
レンズ、生活用品、インテリア類等の一般用途のほかに
、近年では、その光学特性や精密加工特性を利用して、
光学繊維や各種ディスク基盤等の用途に多く用いられる
に至っている。(Prior Art) Since acrylic resin has excellent transparency and weather resistance, molded products thereof have heretofore been widely used mainly in the optical field and the building material field. In particular, injection molded products include lamp covers,
In addition to general uses such as lenses, daily necessities, and interior items, in recent years, taking advantage of its optical properties and precision processing properties,
It has come to be widely used for applications such as optical fibers and various disk substrates.
このように拡大する種々の用途に対して、アクリル樹脂
も、耐熱グレード、高流動グレード、耐衝撃グレード等
、種々のグレードに分化した樹脂組成物が提供されてい
るが、しかし、上記した性能をすべて同時に具備したア
クリル樹脂は、従来、知られていない。For these expanding uses, acrylic resins have been provided in various grades of resin compositions such as heat-resistant grade, high-flow grade, and impact-resistant grade. An acrylic resin that has all of these components at the same time has not been known so far.
例えば、耐熱性重合体との共重合体や後イミド化させた
耐熱グレードや、極端に分子量の高い加圧成形グレード
等が既に知られている。しかし、これらグレードは、い
ずれも溶融粘度が高いために、アクリル酸エステル等と
ランダム共重合させたり、或いは可塑剤等の低分子量物
を少量加える等の方法によって、流動性が付与されてい
る。For example, copolymers with heat-resistant polymers, heat-resistant grades that are post-imidized, and pressure-molded grades with extremely high molecular weights are already known. However, since these grades all have high melt viscosity, fluidity is imparted by methods such as random copolymerization with acrylic esters, or addition of small amounts of low molecular weight substances such as plasticizers.
このような方法によれば、溶融時の流動性は改善される
ものの、耐熱性が著しく損なわれる。According to such a method, although the fluidity during melting is improved, the heat resistance is significantly impaired.
（発明が解決しようとする課題）
本発明は、従来のアクリル樹脂組成物における上記した
問題を解決するためになされたものであって、耐熱性を
殆ど低下させることなく、成形加工性が改善され、しか
も耐衝撃性も改善され得るアクリル樹脂組成物を提供す
ることを目的とする。(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned problems in conventional acrylic resin compositions, and has improved moldability without substantially reducing heat resistance. The object of the present invention is to provide an acrylic resin composition which can also have improved impact resistance.
（課題を解決するための手段）
本発明によるアクリル樹脂組成物は、アクリル樹脂１０
０重量部に対して、一般式（１）％式％
（式中、Ｒは、炭素数７〜２３のアルキル基を示す。）
又は一般式（ＩＩ）
（Ｒ’ −Ｃｏ） ｚＯ
（式中、Ｒ゛は、それぞれ独立に炭素数７〜２３のアル
キル基を示す。）
で表わされる有機カルボン酸又はその無水物１〜１０重
量部を含有することを特徴とする。(Means for Solving the Problems) The acrylic resin composition according to the present invention has an acrylic resin composition of 10
With respect to 0 parts by weight, general formula (1) % formula % (in the formula, R represents an alkyl group having 7 to 23 carbon atoms) or general formula (II) (R' -Co) zO (in the formula , R' each independently represents an alkyl group having 7 to 23 carbon atoms.
本発明において、アクリル樹脂とは、メチルメタクリレ
ートを単独重合させたポリメチルメタクリレート、メチ
ルメタクリレートを主成分として、これに他の単量体を
少量共重合させたランダム共重合体、部分的に後イミド
化したもの、及びこれらを主成分とするポリマーブレン
ド等を含むものとする。In the present invention, acrylic resin refers to polymethyl methacrylate obtained by homopolymerizing methyl methacrylate, a random copolymer obtained by copolymerizing methyl methacrylate as a main component with a small amount of other monomers, and a partially post-imide copolymer. This includes polymer blends containing these as main components.
上記アクリル樹脂は、懸濁重合又は塊状重合で得られる
単独重合体や共重合体であることが望ましい。また、そ
の分子量は、特に限定されるものではないが、通常、平
均重合度１０００〜１００００程度の比較的高分子量の
ものが好適に用いられる。The acrylic resin is preferably a homopolymer or copolymer obtained by suspension polymerization or bulk polymerization. Moreover, the molecular weight is not particularly limited, but those having a relatively high molecular weight with an average degree of polymerization of about 1,000 to 10,000 are usually preferably used.
本発明においては、上記したようなアクリル樹脂に前記
一般式（１）で表わされる有機カルボン酸又は前記一般
式（ＩＩ）で表わされる有機カルボン酸無水物が改質剤
として配合される。In the present invention, an organic carboxylic acid represented by the above general formula (1) or an organic carboxylic acid anhydride represented by the above general formula (II) is blended as a modifier into the above-mentioned acrylic resin.
前記一般式（Ｉ）で表わされる有機カルボン酸において
、Ｒは炭素数７〜２３のアルキル基を示す。Ｒが炭素数
２３を超えるアルキル基であるときは、改質剤がアクリ
ル樹脂との相溶性が低く、得られる樹脂組成物の溶融性
及びその成形物の機械的物性に有害な影響を及ぼす。他
方、Ｒが炭素数７より小さいアルキル基であるときは、
得られる樹脂組成物の耐熱性が改善されない。本発明に
おいて、改質剤におけるＲは、好ましくは炭素数１０〜
２２のアルキル基である。In the organic carboxylic acid represented by the general formula (I), R represents an alkyl group having 7 to 23 carbon atoms. When R is an alkyl group having more than 23 carbon atoms, the modifier has low compatibility with the acrylic resin and has a detrimental effect on the meltability of the resulting resin composition and the mechanical properties of molded products thereof. On the other hand, when R is an alkyl group having less than 7 carbon atoms,
The heat resistance of the resulting resin composition is not improved. In the present invention, R in the modifier preferably has 10 to 10 carbon atoms.
22 alkyl group.
同様に、前記一般式（ＩＩ）で表わされる有機カルボン
酸無水物においても、Ｒ゛はそれぞれ独立に炭素数７〜
２３のアルキル基を示す。Ｒ”が炭素数２３を超えるア
ルキル基であるときは、改質剤がアクリル樹脂との相溶
性が低く、得られる樹脂組成物の溶融性及びその成形物
の機械的物性に有害な影響を及ぼす。他方、Ｒ゛が炭素
数７より小さいアルキル基であるときは、得られる樹脂
組成物の耐熱性が改善されない。本発明において、改質
剤におけるＲ”は、好ましくは炭素数１０〜２２のアル
キル基である。Similarly, in the organic carboxylic acid anhydride represented by the general formula (II), R' each independently has 7 to 7 carbon atoms.
23 shows an alkyl group. When R'' is an alkyl group having more than 23 carbon atoms, the modifier has low compatibility with the acrylic resin, and has a detrimental effect on the meltability of the resulting resin composition and the mechanical properties of its molded product. On the other hand, when R'' is an alkyl group having less than 7 carbon atoms, the heat resistance of the resulting resin composition is not improved. In the present invention, R'' in the modifier is preferably an alkyl group having 10 to 22 carbon atoms. It is an alkyl group.
上記したような有機カルボン酸又は有機カルボン酸無水
物として、例えば、カプロン酸、カプリン酸、ラウリン
酸、ステアリン酸、イソステアリン酸、ベヘン酸等を挙
げることができる。これらは、単独で又は混合物として
用いられる。一般に、有機カルボン酸は、第一アルコー
ルの酸化、アルデヒドやケトンの酸化によって得られる
が、本発明においては、特に、動物性油脂や植物性油脂
等の天然油脂の脂肪酸グリセリンエステル成分を加水分
解することによって得られる炭素数８以上の有機カルボ
ン酸が好ましく用いられる。Examples of the above-mentioned organic carboxylic acids or organic carboxylic acid anhydrides include caproic acid, capric acid, lauric acid, stearic acid, isostearic acid, and behenic acid. These may be used alone or as a mixture. Generally, organic carboxylic acids are obtained by oxidizing primary alcohols, aldehydes, and ketones, but in the present invention, in particular, the fatty acid glycerin ester components of natural oils such as animal fats and vegetable oils are hydrolyzed. An organic carboxylic acid having 8 or more carbon atoms obtained by this method is preferably used.
また、有機カルボン酸無水物としては、上記有機カルボ
ン酸の無水物を挙げることができるが、その無水物は、
混合無水物であってもよい。有機カルボン酸無水物も、
単独で又は混合物として用いられる。In addition, examples of the organic carboxylic acid anhydride include anhydrides of the above-mentioned organic carboxylic acids;
It may also be a mixed anhydride. Organic carboxylic acid anhydrides,
Used alone or in mixtures.
本発明によるアクリル樹脂組成物は、アクリル樹脂１０
０重量部に対して、上記したような有機カルボン酸又は
無水物を改質剤として１〜１０重量部の範囲で含有する
。改質剤の配合量がアクリル樹脂１００重量部に対して
１重量部よりも少ないときは、得られる樹脂組成物の溶
融流動性が有意に改善されず、他方、１０重量部を超え
るときは、得られる樹脂組成物の溶融速度が遅すぎる。The acrylic resin composition according to the present invention comprises acrylic resin 10
The above organic carboxylic acid or anhydride is contained as a modifier in an amount of 1 to 10 parts by weight per 0 parts by weight. When the amount of the modifier is less than 1 part by weight per 100 parts by weight of the acrylic resin, the melt fluidity of the resulting resin composition is not significantly improved, whereas when it exceeds 10 parts by weight, The melting rate of the resulting resin composition is too slow.
好ましくは、本発明においては、改質剤は、アクリル樹
脂１００重量部に対して、３〜７重量部の範囲で配合さ
れる。Preferably, in the present invention, the modifier is blended in an amount of 3 to 7 parts by weight based on 100 parts by weight of the acrylic resin.
このような改質剤は、アクリル樹脂の成形時、加熱によ
ってアクリル樹脂と相溶し、一種の可塑剤として作用し
、樹脂の溶融粘度を低下させて、成形時の樹脂組成物の
流れ特性を改善する。他方、得られた成形品においては
、改質剤は、樹脂中においてミクロ相分離を起こし、そ
のために、耐熱性に殆ど影響を与えることなく、耐衝撃
性を改善するものとみられる。Such modifiers become compatible with the acrylic resin when heated during molding, and act as a type of plasticizer, lowering the melt viscosity of the resin and improving the flow characteristics of the resin composition during molding. Improve. On the other hand, in the obtained molded article, the modifier causes microphase separation in the resin, and therefore appears to improve impact resistance without substantially affecting heat resistance.
本発明によるアクリル樹脂組成物は、上記改質剤以外に
、樹脂組成物に通常配合される種々の添加剤、例えば、
酸化防止剤、熱安定剤、帯電防止剤、着色剤、無機粉体
等の充填剤、無機繊維や有機繊維等の補強剤等を含有し
ていてもよい。In addition to the above-mentioned modifier, the acrylic resin composition according to the present invention contains various additives that are usually added to resin compositions, such as:
It may contain antioxidants, heat stabilizers, antistatic agents, colorants, fillers such as inorganic powders, reinforcing agents such as inorganic fibers and organic fibers, and the like.
本発明によるアクリル樹脂組成物は、常法によって得る
ことができ、射出成形や押出成形等の溶融成形法によっ
て、所望の形状の成形品に成形することができる。The acrylic resin composition according to the present invention can be obtained by a conventional method, and can be molded into a molded article of a desired shape by a melt molding method such as injection molding or extrusion molding.
（発明の効果）
本発明によれば、以上のように、アクリル樹脂に有機カ
ルボン酸又は有機カルボン酸無水物を改質剤として配合
することによって、耐熱性を殆ど低下させることなく、
その成形加工性が改善された樹脂組成物を得ることがで
きる。しかも耐衝撃性も改善され得る。(Effects of the Invention) According to the present invention, as described above, by blending an organic carboxylic acid or an organic carboxylic acid anhydride as a modifier into an acrylic resin, heat resistance is hardly reduced, and
A resin composition with improved moldability can be obtained. Moreover, impact resistance can also be improved.
従って、本発明によるアクリル樹脂組成物は、このよう
にすぐれた性質を利用して、特に、超精密又は超大型の
成形品、例えば、電気機器部品、自動車部品、日用品部
材等の素材として好適に用いることができる。Therefore, by utilizing these excellent properties, the acrylic resin composition according to the present invention is particularly suitable as a material for ultra-precision or ultra-large molded products, such as electrical equipment parts, automobile parts, daily necessities parts, etc. Can be used.
（実施例） 以下に実施例を挙げて本発明を説明する。(Example) The present invention will be explained below with reference to Examples.
実施例１〜５
耐熱グレードのポリマーメチルメタクリレート（旭化成
工業■製テルペツ）８ＯＮ）と第１表に示す有機カルボ
ン酸又は無水物とを非噛み合い同方向回転型二軸押出機
に投入し、樹脂温度２２０℃で混練押出しした。得られ
たストランド状押出物をペレタイザーを用いてベレット
化し、次に、このペレットの一部を２２０ ’Ｃでプレ
ス成形して、厚さ３ｍｍ及び５ｍｍのシートを成形した
。Examples 1 to 5 Heat-resistant grade polymer methyl methacrylate (Terpets 8ON, manufactured by Asahi Kasei Corporation) and the organic carboxylic acids or anhydrides shown in Table 1 were charged into a non-meshing, co-rotating twin-screw extruder, and the resin temperature was increased. The mixture was kneaded and extruded at 220°C. The obtained strand-like extrudate was pelletized using a pelletizer, and then a portion of the pellet was press-molded at 220'C to form sheets with thicknesses of 3 mm and 5 mm.
上記ペレット及びシートについて、下記の方法で耐熱性
、成形加工性及び耐衝撃性を評価した。The above pellets and sheets were evaluated for heat resistance, moldability, and impact resistance using the following methods.
結果を第１表に示す。The results are shown in Table 1.
１然性
上記５ｍ厚さのシートについて、耐熱性の指標である熱
変形温度（ＨＤＴ）をＪＩＳ Ｋ−７２０７に準拠し、
荷重１８．６ｋｇ／ｃｉｌｌで測定した。1. Regarding the above 5m thick sheet, the heat distortion temperature (HDT), which is an index of heat resistance, was determined according to JIS K-7207.
Measurement was performed at a load of 18.6 kg/cil.
底ゑ■エユ
ペレットを厚さ２■、幅１５■のスパイラル金型を備え
た射出成形機に供給し、シリンダー温度２４０℃、射出
圧カフ ００ ｋｇ／ｃｄ、金型温度６０℃の条件下で
射出し、成形加工性の指標であるスパイラル流動長を測
定した。The bottom Eyu pellets were fed into an injection molding machine equipped with a spiral mold with a thickness of 2 cm and a width of 15 cm, and injection was performed under the conditions of a cylinder temperature of 240 °C, an injection pressure cuff of 00 kg/cd, and a mold temperature of 60 °C. Then, the spiral flow length, which is an index of moldability, was measured.
謝ｍ
前記３（財）厚さのシートについて、ＡＳＴＭ Ｄ ２
５６に準拠して、耐衝撃性の指標であるアイゾツト衝Ｖ
（！ （ノツチ付き）を測定した。For the above 3 (goods) thickness sheet, ASTM D 2
In accordance with 56, Izot impact V, which is an index of impact resistance.
(! (notched) was measured.
比較例１
実施例と同し耐熱グレードのポリマーメチルメタクリレ
ートに有機カルボン酸又は無水物を加えない以外は、実
施例１と同様にして、ペレット及びシートを得た。Comparative Example 1 Pellets and sheets were obtained in the same manner as in Example 1, except that no organic carboxylic acid or anhydride was added to the same heat-resistant grade polymer methyl methacrylate as in Example.
比較例２及び３
実施例１において、改質剤として、オレイン酸（比較例
２）又はステアリルアルコールを用いた以外は、実施例
１と同様にして、ペレット及びシートを得た。Comparative Examples 2 and 3 Pellets and sheets were obtained in the same manner as in Example 1, except that oleic acid (Comparative Example 2) or stearyl alcohol was used as the modifier.
上記ペレット及びシートについて、前記と同じ方法で耐
熱性、成形加工性及び耐衝撃性を評価した。結果を第１
表に示す。The above pellets and sheets were evaluated for heat resistance, moldability, and impact resistance using the same methods as described above. Results first
Shown in the table.
特許出願人 積水化学工業株式会社 代表者 廣１） 馨Patent applicant Sekisui Chemical Co., Ltd. Representative Hiro 1) Kaoru
Claims (1)
I ） Ｒ−ＣＯＯＨ （式中、Ｒは炭素数７〜２３のアルキル基を示す。） 又は一般式（II） （Ｒ′−ＣＯ）＿２Ｏ （式中、Ｒ′はそれぞれ独立に炭素数７〜２３のアルキ
ル基を示す、） で表わされる有機カルボン酸又はその無水物１〜１０重
量部を含有することを特徴とするアクリル樹脂組成物。(1) For 100 parts by weight of acrylic resin, the general formula (
I) R-COOH (in the formula, R represents an alkyl group having 7 to 23 carbon atoms) or general formula (II) (R'-CO)_2O (in the formula, each R' independently represents an alkyl group having 7 to 23 carbon atoms) An acrylic resin composition characterized by containing 1 to 10 parts by weight of an organic carboxylic acid or anhydride thereof represented by the formula (23) having an alkyl group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11464290A JPH048751A (en) | 1990-04-26 | 1990-04-26 | Acrylic resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11464290A JPH048751A (en) | 1990-04-26 | 1990-04-26 | Acrylic resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048751A true JPH048751A (en) | 1992-01-13 |
Family
ID=14642916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11464290A Pending JPH048751A (en) | 1990-04-26 | 1990-04-26 | Acrylic resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10173028B2 (en) | 2010-12-02 | 2019-01-08 | Biosense Webster (Israel) Ltd. | Magnetic resonance imaging compatible catheter |
-
1990
- 1990-04-26 JP JP11464290A patent/JPH048751A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10173028B2 (en) | 2010-12-02 | 2019-01-08 | Biosense Webster (Israel) Ltd. | Magnetic resonance imaging compatible catheter |
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