JP3198133B2 - Molding resin composition - Google Patents
Molding resin compositionInfo
- Publication number
- JP3198133B2 JP3198133B2 JP34464391A JP34464391A JP3198133B2 JP 3198133 B2 JP3198133 B2 JP 3198133B2 JP 34464391 A JP34464391 A JP 34464391A JP 34464391 A JP34464391 A JP 34464391A JP 3198133 B2 JP3198133 B2 JP 3198133B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- resin composition
- compression molding
- resin
- Prior art date
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- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、透明性に優れた成形物
を加熱圧縮成形により得ることができる常温で増粘可能
な加熱圧縮成形用樹脂組成物に関する。浴槽等に使用さ
れる人造大理石成形物を加熱圧縮成形する際に用いる樹
脂組成物として、これは有用である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin composition for heat compression molding capable of increasing the viscosity at room temperature, by which a molded article having excellent transparency can be obtained by heat compression molding. This is useful as a resin composition used when heat compression molding an artificial marble molded product used in a bathtub or the like.
【０００２】[0002]
【従来の技術】従来、加熱圧縮成形用樹脂組成物に用い
られる熱硬化性樹脂としては、不飽和ポリエステル樹脂
が一般的に知られている。これらの不飽和ポリエステル
樹脂を用いる加熱圧縮成形用樹脂組成物は、通常ＳＭＣ
（シートモールディング樹脂組成物）やＢＭＣ（バルク
モールディング樹脂組成物）に代表されるように増粘剤
により増粘させた後、成形される。この際の増粘方法と
しては、一般的に、酸化マグネシウムや酸化カルシウム
等の金属酸化物を用いる方法やイソシアン酸エステルを
用いるウレタン増粘法が知られている。更に、特開昭57
-65711号公報には、金属酸化物と不飽和エポキシ樹脂か
らなる組成物による方法、及び、特公昭62-9605号公報
には、アルカリ土類金属のキレートによる方法が開示さ
れている。2. Description of the Related Art Unsaturated polyester resins are generally known as thermosetting resins used in heat-compression molding resin compositions. The resin composition for heat compression molding using these unsaturated polyester resins is usually SMC
After being thickened by a thickener as represented by (sheet molding resin composition) and BMC (bulk molding resin composition), it is molded. As a thickening method at this time, a method using a metal oxide such as magnesium oxide or calcium oxide or a urethane thickening method using an isocyanate ester is generally known. Furthermore, Japanese Patent Laid-Open No. 57
JP-A-65711 discloses a method using a composition comprising a metal oxide and an unsaturated epoxy resin, and JP-B-62-9605 discloses a method using a chelate of an alkaline earth metal.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の加熱圧
縮成形用樹脂組成物では、増粘剤として金属酸化物を用
いる場合、40℃で２日間程度余分な熟成を必要とし、ま
た、イソシアン酸エステルを用いる場合、熱硬化性樹脂
の水酸基価を調節しなければ樹脂組成物の粘度を成形に
必要な状態にすることができない。更に、金属キレート
の添加による増粘方法では、増粘の程度を調節しにくい
ため樹脂組成物が増粘し過ぎ、成形時に型内での流動性
が低下するという欠点がある。これらの手間や欠点に対
して、繊維強化材や無機フィラーを増量するという手段
もあるが、混練時に樹脂組成物への分散が不良になると
いう別の問題が生じる。本発明は、成形可能な状態まで
常温で容易に増粘することができ、得られる成形物が透
明性に優れている樹脂組成物を提供することを目的にす
る。However, in the conventional resin composition for heat compression molding, when a metal oxide is used as a thickener, extra aging is required at 40 ° C. for about 2 days, and isocyanic acid When an ester is used, the viscosity of the resin composition cannot be brought to a state required for molding unless the hydroxyl value of the thermosetting resin is adjusted. Further, the method of thickening by adding a metal chelate has a disadvantage that the degree of thickening is difficult to control, so that the resin composition excessively thickens and the fluidity in a mold during molding decreases. To cope with these troubles and disadvantages, there is a method of increasing the amount of the fiber reinforcing material or the inorganic filler, but another problem that dispersion in the resin composition becomes poor at the time of kneading occurs. An object of the present invention is to provide a resin composition which can be easily thickened at room temperature to a moldable state and the resulting molded article has excellent transparency.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、これらの
課題を解決するために鋭意検討した結果、アクリルポリ
マーを樹脂組成物中に含有させることにより、常温でも
あらゆる熱硬化性樹脂について加熱圧縮成形可能な樹脂
組成物の状態にできることを見出し、本発明に至った。Means for Solving the Problems The present inventors have made intensive studies to solve these problems, and as a result, by including an acrylic polymer in a resin composition, all kinds of thermosetting resins can be heated even at room temperature. The present inventors have found that a resin composition that can be compression-molded can be obtained, and have reached the present invention.
【０００５】すなわち、本発明は、熱硬化性樹脂100重
量部に対し、無機フィラー（Ａ）100〜350重量部と、繊
維強化材（Ｂ）10〜50重量部と、硬化用触媒（Ｃ）0.5
〜２重量部と、内部離型剤（Ｄ）３〜５重量部とを含
み、さらに増粘剤としてアクリルポリマー（Ｅ）５〜50
重量部を含有する、常温で増粘可能な加熱圧縮成形用樹
脂組成物であって、前記アクリルポリマー（Ｅ）は、多
官能架橋モノマーを含有する数平均分子量が６万〜２０
万のポリマーであって、アクリルポリマー（Ｅ）中の前
記多官能架橋モノマーの含有量の上限が５重量％である
ことを特徴とする加熱圧縮成形用樹脂組成物である。That is, the present invention relates to 100 to 350 parts by weight of an inorganic filler (A), 10 to 50 parts by weight of a fiber reinforcing material (B), and a curing catalyst (C) based on 100 parts by weight of a thermosetting resin. 0.5
-5 parts by weight of an internal release agent (D), and 3-5 parts by weight of an acrylic polymer (E) as a thickener.
It is a resin composition for heat compression molding capable of increasing the viscosity at room temperature, the acrylic polymer (E) containing a polyfunctional crosslinking monomer having a number average molecular weight of 60,000 to 20% by weight.
It is a resin composition for heat compression molding, wherein the upper limit of the content of the polyfunctional crosslinking monomer in the acrylic polymer (E) is 5% by weight.
【０００６】まず、本発明に用いられる熱硬化性樹脂と
は、樹脂中にエチレン性不飽和結合を有するポリマー及
びモノマーからなる混合物であり、必要に応じ硬化用触
媒を添加し、加熱又は加圧することで容易に３次元網目
構造をとって硬化する一般的な熱硬化性樹脂をいう。不
飽和ポリエステル樹脂、ビニルエステル樹脂、アクリル
シロップ樹脂についても、特別に変性することは必要と
しないが、人造大理石等の注型用に通常使用されるも
の、すなわち、色相と透明性に優れた樹脂であることが
望ましい。また、反応成分であるエチレン性不飽和結合
を有するモノマーについては、スチレン、メチル（メ
タ）アクリレート等、特に制限はない。なお、以下にお
いて、（メタ）アクリレート及び（メタ）アクリル酸
は、それぞれメタクリレート、アクリレート；メタクリ
ル酸、アクリル酸を意味する。First, the thermosetting resin used in the present invention is a mixture of a polymer and a monomer having an ethylenically unsaturated bond in the resin, and if necessary, a curing catalyst is added, and the mixture is heated or pressurized. This means a general thermosetting resin that easily takes a three-dimensional network structure and cures. Unsaturated polyester resin, vinyl ester resin, and acrylic syrup resin do not need to be specially modified, but are usually used for casting such as artificial marble, that is, resins having excellent hue and transparency. It is desirable that The monomer having an ethylenically unsaturated bond as a reaction component is not particularly limited, such as styrene and methyl (meth) acrylate. In the following, (meth) acrylate and (meth) acrylic acid mean methacrylate and acrylate; methacrylic acid and acrylic acid, respectively.
【０００７】本発明に用いる無機フィラー（Ａ）につい
ては、水酸化アルミニウム、ガラスフィラー等であり、
透明性に優れた人造大理石を成形する際に用いられるも
のが望ましい。また、これらの添加量については、成形
物の透明性を損なわない程度とし、人造大理石等の注型
用に通常添加される量と同じである。その量は、熱硬化
性樹脂 100重量部に対し通常 100〜350重量部であり、
成形物の透明性や色相を考えると好ましくは 150〜300
重量部である。繊維強化材（Ｂ）については、成形物の
透明性を損なわないようにして、成形物の強度を保持す
るように添加することが望ましく、用いるものは短繊維
がよい。また、その添加量は、用いる繊維の質や長さに
応じて変えなければならないが、成形物の透明性を保つ
ためには、熱硬化性樹脂 100重量部に対し 10〜50重量
部とするのが望ましい。硬化用触媒（Ｃ）については、
成形温度に応じ適宜選択し、成形時間を５分程度とし、
その添加量は熱硬化性樹脂 100重量部に対し、通常 0.5
〜２重量部、好ましくは 0.7〜1.2重量部である。内部
離型剤（Ｄ）については、特に制限はないが、その添加
量は熱硬化性樹脂 100重量部に対し、通常３〜５重量部
である。The inorganic filler (A) used in the present invention includes aluminum hydroxide, glass filler and the like.
What is used at the time of forming artificial marble excellent in transparency is desirable. The amount of these additives is set to such an extent that the transparency of the molded product is not impaired, and is the same as the amount usually added for casting of artificial marble or the like. The amount is usually 100 to 350 parts by weight per 100 parts by weight of the thermosetting resin,
Considering the transparency and hue of the molded product, preferably 150 to 300
Parts by weight. The fiber reinforcing material (B) is desirably added so as not to impair the transparency of the molded product and maintain the strength of the molded product, and short fibers are preferably used. In addition, the amount of addition must be changed according to the quality and length of the fiber used, but in order to maintain the transparency of the molded product, it is 10 to 50 parts by weight based on 100 parts by weight of the thermosetting resin. It is desirable. As for the curing catalyst (C),
It is appropriately selected according to the molding temperature, the molding time is about 5 minutes,
The amount of addition is usually 0.5 to 100 parts by weight of the thermosetting resin.
To 2 parts by weight, preferably 0.7 to 1.2 parts by weight. The internal release agent (D) is not particularly limited, but is usually added in an amount of 3 to 5 parts by weight based on 100 parts by weight of the thermosetting resin.
【０００８】次に、増粘剤として添加するアクリルポリ
マー（Ｅ）は、メチルメタクリレートを主成分とするア
クリルポリマーであり、他の（メタ）アクリル系モノマ
ーや多官能架橋モノマーを共重合したものでもかまわな
いが、メチルメタクリレートの含有量は 90重量％以
上、また、多官能架橋モノマーの含有量は５重量％以下
であることが望ましい。ここで用いられるメチルメタク
リレート以外の（メタ）アクリル系モノマーとしては、
エチル（メタ）アクリレート、ブチル（メタ）アクリレ
ート、（メタ）アクリル酸等、また、多官能架橋モノマ
ーとしては、エチレングリコールジ（メタ）アクリレー
ト、ポリエチレングリコールジ（メタ）アクリレート、
トリメチロールプロパントリ（メタ）アクリレート等が
挙げられる。アクリルポリマーの重合方法については特
に限定しないが、この際、得られるアクリルポリマーの
分子量は、数平均分子量で通常６万〜20万、好ましくは
８万〜12万である。アクリルポリマーの添加量は、熱硬
化性樹脂 100重量部に対し５〜50重量部であるが、使用
時の樹脂組成物の粘度に応じて添加するのが望ましく、
無機フィラーや繊維強化材の量によっても調整できる。
この量が５重量部未満では、増粘が充分に行われず、ま
た、50重量部を越えると成形性が損なわれる。Next, the acrylic polymer (E) to be added as a thickener is an acrylic polymer containing methyl methacrylate as a main component, and may be obtained by copolymerizing another (meth) acrylic monomer or a polyfunctional crosslinking monomer. Although it does not matter, the content of methyl methacrylate is preferably 90% by weight or more, and the content of the polyfunctional crosslinking monomer is preferably 5% by weight or less. (Meth) acrylic monomers other than methyl methacrylate used here include:
Ethyl (meth) acrylate, butyl (meth) acrylate, (meth) acrylic acid and the like, and polyfunctional crosslinking monomers include ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate,
And trimethylolpropane tri (meth) acrylate. The method for polymerizing the acrylic polymer is not particularly limited. In this case, the molecular weight of the obtained acrylic polymer is usually 60,000 to 200,000, preferably 80,000 to 120,000 in terms of number average molecular weight. The addition amount of the acrylic polymer is 5 to 50 parts by weight based on 100 parts by weight of the thermosetting resin, but it is desirable to add the acrylic polymer according to the viscosity of the resin composition at the time of use,
It can also be adjusted by the amount of inorganic filler or fiber reinforcement.
If the amount is less than 5 parts by weight, the viscosity will not be sufficiently increased, and if it exceeds 50 parts by weight, the moldability will be impaired.
【０００９】このアクリルポリマーは、樹脂組成物中の
モノマー成分によって膨潤されることにより樹脂組成物
全体の粘度を増加させる。そのため、温度や樹脂の種類
等に影響されにくく、特に熟成などの工程を必要としな
い。また、アクリルポリマー中に吸着されたモノマー分
は、加熱圧縮成形時に出てきて反応成分として作用す
る。上記のようにして得られる成形用樹脂組成物は、成
形温度 80〜120℃、成形圧力 30〜100 Kg/cm2 で加熱圧
縮成形される。The acrylic polymer increases the viscosity of the entire resin composition by being swollen by the monomer component in the resin composition. Therefore, it is hardly affected by the temperature, the type of the resin, and the like, and a step such as aging is not particularly required. The monomer adsorbed in the acrylic polymer comes out at the time of heat compression molding and acts as a reaction component. The molding resin composition obtained as described above is subjected to heat compression molding at a molding temperature of 80 to 120 ° C. and a molding pressure of 30 to 100 kg / cm 2 .
【００１０】[0010]
【実施例】以下に、実施例及び比較例により本発明を詳
細に説明する。以下において、「部」は重量基準であ
る。 実施例１ イソフタル酸系不飽和ポリエステル樹脂（ＣＲ279：商
品名、三井東圧化学社製）100部、ガラスフィラー（Ｍ-
50Ｓ：商品名、日本フェロー社製）200部、６mm長のガ
ラスチョップ 10部、ミルドファイバー 10部、ビス-(4-
ｔ-ブチルシクロヘキシル)パーオキシジカーボネート
（火薬アクゾ社製）1.0部、ステアリン酸亜鉛 3.0部、
及び、エチレングリコールジメタクリレートを１．０質
量％含有する、数平均分子量８万のアクリルポリマー
（商品名：ＸＥ５２６、三井東圧化学社製）25部を双腕
型ニーダーにて混練し、餅状の成形用樹脂組成物を得
た。The present invention will be described below in detail with reference to examples and comparative examples. In the following, “parts” are based on weight. Example 1 100 parts of an isophthalic unsaturated polyester resin (CR279: trade name, manufactured by Mitsui Toatsu Chemicals, Inc.), glass filler (M-
50S: trade name, manufactured by Nippon Fellow Co., Ltd.) 200 parts, 10 parts of 6 mm long glass chop, 10 parts of milled fiber, screw- (4-
t-butylcyclohexyl) peroxydicarbonate (manufactured by Explosives Akzo) 1.0 part, zinc stearate 3.0 parts,
In addition, 25 parts of an acrylic polymer (trade name: XE526, manufactured by Mitsui Toatsu Chemicals, Inc.) containing 1.0% by mass of ethylene glycol dimethacrylate and having a number average molecular weight of 80,000 is kneaded with a double-armed kneader to obtain a rice cake-like shape. Was obtained.
【００１１】実施例２ ビニルエステル樹脂（ＣＲ298：商品名、三井東圧化学
社製）100部、水酸化アルミニウム（Ｈ-320ST：商品
名、昭和電工社製）200部、６mm長のガラスチョップ10
部、ミルドファイバー 10部、ビス-(4-ｔ-ブチルシクロ
ヘキシル)パーオキシジカーボネート（火薬アクゾ社
製）1.0部、ステアリン酸亜鉛 3.0部、及び、多官能架
橋モノマーを２．０質量％含有する、数平均分子量10万
のアクリルポリマー（商品名：ＸＥ−５２７、三井東圧
化学社製）25部を双腕型ニーダーにて混練し、餅状の成
形用樹脂組成物を得た。Example 2 100 parts of vinyl ester resin (CR298: trade name, manufactured by Mitsui Toatsu Chemicals), 200 parts of aluminum hydroxide (H-320ST: trade name, manufactured by Showa Denko KK), glass chop 10 having a length of 6 mm
Parts, 10 parts of milled fiber, 1.0 part of bis- (4-t-butylcyclohexyl) peroxydicarbonate (manufactured by Gunze Akzo), 3.0 parts of zinc stearate, and 2.0% by mass of a polyfunctional crosslinking monomer. Then, 25 parts of an acrylic polymer having a number average molecular weight of 100,000 ( trade name: XE-527, manufactured by Mitsui Toatsu Chemicals, Inc.) was kneaded with a double-arm kneader to obtain a dough-shaped resin composition for molding.
【００１２】実施例３ アクリルシロップ（ＳＭ800Ａ：商品名、三井東圧化学
社製）100部、水酸化アルミニウム（Ｈ-310ST：商品
名、昭和電工社製）250部、６mm長のガラスチョップ10
部、ミルドファイバー 10部、ｔ-ブチルパーオキシ(2-
エチルヘキサノエート)（日本油脂社製）1.0部、ステア
リン酸亜鉛 5.0部、及び、多官能架橋モノマーを４．０
質量％含有する、数平均分子量12万のアクリルポリマー
（商品名：ＸＥ−５２８、三井東圧化学社製）25部を双
腕型ニーダーにて混練し、餅状の成形用樹脂組成物を得
た。Example 3 100 parts of acrylic syrup (SM800A: trade name, manufactured by Mitsui Toatsu Chemicals), 250 parts of aluminum hydroxide (H-310ST: trade name, manufactured by Showa Denko KK), 6 mm long glass chop 10
Parts, milled fiber 10 parts, t-butyl peroxy (2-
1.0 part of ethylhexanoate) (manufactured by NOF Corporation), 5.0 parts of zinc stearate, and 4.0 parts of a polyfunctional crosslinking monomer.
25 parts by mass of an acrylic polymer having a number average molecular weight of 120,000 ( trade name: XE-528, manufactured by Mitsui Toatsu Chemicals, Inc.) is kneaded with a double-arm kneader to obtain a dough-shaped resin composition for molding. Was.
【００１３】比較例１ イソフタル酸系不飽和ポリエステル樹脂 100部、炭酸カ
ルシウム 350部、６mm長のガラスチョップ 20部、２mm
長のガラスチョップ 10部、ｔ-ブチルパーオキシ(2-エ
チルヘキサノエート)（日本油脂社製）1.0部、及び、ス
テアリン酸亜鉛 4.0部を加え双腕型ニーダーにて混練
し、餅状の成形用樹脂組成物を得た。Comparative Example 1 100 parts of an isophthalic unsaturated polyester resin, 350 parts of calcium carbonate, 20 parts of 6 mm long glass chop, 2 mm
Add 10 parts of long glass chop, 1.0 part of t-butyl peroxy (2-ethylhexanoate) (manufactured by NOF CORPORATION) and 4.0 parts of zinc stearate, knead with a double-armed kneader, and form a rice cake-shaped A molding resin composition was obtained.
【００１４】比較例２ イソフタル酸系不飽和ポリエステル樹脂 100部、炭酸カ
ルシウム 300部、６mm長のガラスチョップ 20部、２mm
長のガラスチョップ 10部、ｔ-ブチルパーオキシ(2-エ
チルヘキサノエート)（日本油脂社製）1.0部、ステアリ
ン酸亜鉛 4.0部、及び、増粘剤として酸化マグネシウム
1.0部を加え双腕型ニーダーにて混練し、餅状の成形用
樹脂組成物を得た。Comparative Example 2 100 parts of an isophthalic unsaturated polyester resin, 300 parts of calcium carbonate, 20 parts of a 6 mm long glass chop, 2 mm
Long glass chop 10 parts, t-butyl peroxy (2-ethylhexanoate) (manufactured by NOF Corporation) 1.0 part, zinc stearate 4.0 parts, and magnesium oxide as a thickener
1.0 part was added and kneaded with a double-arm kneader to obtain a dough-shaped resin composition for molding.
【００１５】上記の実施例及び比較例で得た成形用樹脂
組成物を、25℃で放置し、それらの経時的増粘につい
て、指触による組成物表面のベタつき、及び、シート剥
離性を４段階で評価した。それらの結果を表１（表１）
に示す。The resin compositions for molding obtained in the above Examples and Comparative Examples were allowed to stand at 25 ° C., and their viscosity was increased with time. It was evaluated on a scale. Table 1 (Table 1) shows the results.
Shown in
【００１６】[0016]
【発明の効果】本発明による成形用樹脂組成物では、増
粘剤として数平均分子量が６万〜２０万のアクリルポリ
マーを用いることで常温でも容易に成形可能な状態まで
増粘することができ、表面光沢や透明性に優れた成形物
を加熱圧縮成形することができる。According to the resin composition for molding according to the present invention, an acrylic polymer having a number average molecular weight of 60,000 to 200,000 can be used to increase the viscosity to a state where it can be easily molded at room temperature by using an acrylic polymer having a number average molecular weight of 60,000 to 200,000. A heat-compression molding of a molded product having excellent surface gloss and transparency can be performed.
【００１７】[0017]
【表１】 ×：表面のベタつきが大きく、シート剥離性が悪
い。 △：表面のベタつきがあり、シート剥離性が悪い。 ○：表面のベタつきはあるがシート剥離性は良い。 ◎：表面のベタつきもなく、シート剥離性が良い。[Table 1] X: The surface is very sticky and the sheet releasability is poor. Δ: The surface is sticky, and the sheet releasability is poor. ：: The sheet is sticky but the sheet releasability is good. A: There is no stickiness on the surface and the sheet releasability is good.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古沢 敏 千葉県茂原市東郷1900番地 三井東圧化 学株式会社内 (56)参考文献 特開 平３−70719（ＪＰ，Ａ) 特開 昭63−22816（ＪＰ，Ａ) 特開 昭61−235457（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C08L 1/00 - 101/16 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Satoshi Furusawa 1900 Togo, Mobara-shi, Chiba Mitsui Toatsu Chemicals Co., Ltd. (56) References JP-A-3-70719 (JP, A) JP-A-63- 22816 (JP, A) JP-A-61-235457 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C08L 1/00-101/16
Claims (6)
ィラー（Ａ）100〜350重量部と、繊維強化材（Ｂ）10〜
50重量部と、硬化用触媒（Ｃ）0.5〜２重量部と、内部
離型剤（Ｄ）３〜５重量部とを含み、さらに増粘剤とし
てアクリルポリマー（Ｅ）５〜50重量部を含有する、常
温で増粘可能な加熱圧縮成形用樹脂組成物であって、前
記アクリルポリマー（Ｅ）は、多官能架橋モノマーを含
有する数平均分子量が６万〜２０万のポリマーであっ
て、アクリルポリマー（Ｅ）中の前記多官能架橋モノマ
ーの含有量の上限が５重量％であることを特徴とする加
熱圧縮成形用樹脂組成物。1. 100 parts by weight of a thermosetting resin, 100 to 350 parts by weight of an inorganic filler (A), 10 parts by weight of a fiber reinforcing material (B)
50 parts by weight, a curing catalyst (C) 0.5 to 2 parts by weight, an internal mold release agent (D) 3 to 5 parts by weight, and an acrylic polymer (E) 5 to 50 parts by weight as a thickener. It is a resin composition for heat compression molding that can be thickened at room temperature, wherein the acrylic polymer (E) is a polymer containing a polyfunctional crosslinking monomer and having a number average molecular weight of 60,000 to 200,000, A resin composition for heat compression molding, wherein the upper limit of the content of the polyfunctional crosslinking monomer in the acrylic polymer (E) is 5% by weight.
レートを９０重量％以上含むものである、請求項１に記
載の加熱圧縮成形用樹脂組成物。2. The resin composition for heat compression molding according to claim 1, wherein the acrylic polymer contains at least 90% by weight of methyl methacrylate.
である請求項１または２に記載の加熱圧縮成形用樹脂組
成物。3. The resin composition for heat compression molding according to claim 1, wherein the thermosetting resin is an unsaturated polyester resin.
る請求項１または２に記載の加熱圧縮成形用樹脂組成
物。4. The resin composition for heat compression molding according to claim 1, wherein the thermosetting resin is a vinyl ester resin.
ある請求項１または２に記載の加熱圧縮成形用樹脂組成
物。5. The resin composition for heat compression molding according to claim 1, wherein the thermosetting resin is an acrylic syrup resin.
に用いられることを特徴とする請求項１乃至５いずれか
に記載の加熱圧縮成形用樹脂組成物。6. The resin composition for heat compression molding according to claim 1, which is used for heat compression molding of an artificial marble molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34464391A JP3198133B2 (en) | 1991-12-26 | 1991-12-26 | Molding resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34464391A JP3198133B2 (en) | 1991-12-26 | 1991-12-26 | Molding resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05171022A JPH05171022A (en) | 1993-07-09 |
| JP3198133B2 true JP3198133B2 (en) | 2001-08-13 |
Family
ID=18370854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34464391A Expired - Lifetime JP3198133B2 (en) | 1991-12-26 | 1991-12-26 | Molding resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3198133B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3473911B2 (en) * | 1994-06-30 | 2003-12-08 | 日本ゼオン株式会社 | Unsaturated polyester resin composition and method for molding the composition |
| EP0796873A4 (en) * | 1995-10-06 | 1999-11-03 | Nippon Catalytic Chem Ind | (meth)acrylic syrup, process for preparing the same, and process for preparing molding material containing (meth)acrylic syrup |
| EP0894828B1 (en) | 1996-04-19 | 2002-01-16 | Mitsubishi Rayon Co., Ltd. | Acrylic resin composition, acrylic premixes, process for producing acrylic artificial marble, and thickener |
| DE60026493T2 (en) | 1999-03-16 | 2006-10-12 | Dainippon Ink And Chemicals, Inc. | SHEET PHOTO-ACRYLIC MATERIAL |
| KR100664654B1 (en) * | 2004-08-12 | 2007-01-04 | 주식회사 엘지화학 | Resin composition comprising styrene-methylmethacrylate copolymer, artificial marble produced using the same, and the process for producing the artificial marble using the same |
-
1991
- 1991-12-26 JP JP34464391A patent/JP3198133B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05171022A (en) | 1993-07-09 |
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