JPH0714831B2 - Resin composition for resin concrete and resin concrete molded product - Google Patents
Resin composition for resin concrete and resin concrete molded productInfo
- Publication number
- JPH0714831B2 JPH0714831B2 JP126990A JP126990A JPH0714831B2 JP H0714831 B2 JPH0714831 B2 JP H0714831B2 JP 126990 A JP126990 A JP 126990A JP 126990 A JP126990 A JP 126990A JP H0714831 B2 JPH0714831 B2 JP H0714831B2
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- Japan
- Prior art keywords
- resin
- weight
- resin concrete
- concrete
- parts
- 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.)
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- Polymerization Catalysts (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はレジンコンクリート用樹脂組成物、さらに詳し
くはレジンコンクリート成形品の生産性に優れたレジン
コンクリート用樹脂組成物およびこれより得られるレジ
ンコンクリート成形品に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a resin composition for resin concrete, more specifically, a resin composition for resin concrete which is excellent in the productivity of a resin concrete molded product, and a resin concrete obtained therefrom. Regarding molded products.
〔従来の技術〕 海砂、川砂、砕石などの珪砂に、熱硬化性樹脂、有機過
化物おび必要に応じて用いられる硬化促進剤を混合し、
注形して加圧加熱成形して得られるレジンコンクリート
成形品は、電気機器、上下水道機器、住宅機器等の広範
囲に使用されている。特に熱硬化性樹脂として不飽和ポ
リエステル樹脂を用い、これにケトン系パーオキサイド
およびコバルト有機酸塩を混合して常温で注形、成形し
たレジンコンクリート成形品が広く使用されている。[Prior Art] Sea sand, river sand, silica sand such as crushed stone, a thermosetting resin, an organic peroxide and a curing accelerator used as needed are mixed,
Resin concrete molded products obtained by casting and pressurizing and heating are widely used in electrical equipment, water and sewer equipment, housing equipment and the like. In particular, a resin concrete molded product obtained by using an unsaturated polyester resin as a thermosetting resin, mixing it with a ketone type peroxide and a cobalt organic acid salt, and casting and molding at room temperature is widely used.
しかし、レジンコンクリートの主成分の１つである珪砂
は通常水分を含んでおり、該水分は、ケトン系パーオキ
サイドとコバルト有機酸塩による常温成形に際し、硬化
阻害を起こす原因となっている。すなわち、高温多湿の
日本にあっては、硬化時間が上記水分量によって変動
し、この業界においては５分〜５時間の変動は常識とな
っている。この硬化時間の変動を防ぐため、砂を乾燥さ
せて吸湿しないように保管したり、またレジンコンクリ
ート作製時の水分量をチェックし、水分量が多い場合に
は再度乾燥させる必要があった。しかし、このような方
法では、砂の管理に手間がかかり、レジンコンクリート
成形品の価格の上昇につながる。またレジンコンクリー
トの対象製品は大型のものが多く、一度に例えば50〜20
0kgの砂を使用するため、砂の水分管理量が多くなり、
大型の設備導入が必要であった。However, silica sand, which is one of the main components of resin concrete, usually contains water, and this water causes hardening inhibition during room temperature molding with a ketone peroxide and a cobalt organic acid salt. That is, in Japan where the temperature is high and the humidity is high, the curing time varies depending on the water content, and in the industry, the variation of 5 minutes to 5 hours is common knowledge. In order to prevent the fluctuation of the curing time, it was necessary to dry the sand and store it so as not to absorb moisture, check the water content at the time of preparing the resin concrete, and dry it again when the water content was large. However, in such a method, it takes a lot of time to manage the sand, which leads to an increase in the price of the resin concrete molded product. In addition, many of the products targeted for resin concrete are large ones, for example 50 to 20 at a time.
Since 0 kg of sand is used, the amount of water management of sand increases,
It was necessary to introduce large equipment.
本発明の目的は、前記従来技術の問題点をなくし、硬化
時間の大幅な変動を防止してレジンコンクリート成形品
の生産性を向上させることができるレジンコンクリート
用樹脂組成物およびレジンコンクリート成形品を提供す
ることにある。An object of the present invention is to eliminate the above-mentioned problems of the prior art, to prevent a large change in curing time, and to improve the productivity of resin concrete molded products, and to provide a resin composition for resin concrete and resin concrete molded products. To provide.
本発明は、熱硬化性樹脂、コバルト有機酸塩、硬化促進
剤、有機過酸化物、低収縮剤および珪砂を含むレジンコ
ンクリート用樹脂組成物において、前記硬化促進剤とし
て、Li3〔Co（NO2）６〕、Li3〔Co（NO2）5Cl〕、Li
3〔Co（NO2）5Br〕、Li3〔Co（NO2）4Cl2〕、Li3〔Co
（NO2）4Br2〕、Na3〔Co（NO2）６〕、Na3〔Co（NO2）5
Cl〕、Na3〔Co（NO2）5Br〕、Na3〔Co（NO2）4Cl2〕、N
a3〔Co（NO2）4Br2〕、K3〔Co（NO2）６〕、K3〔Co（NO
2）5Cl〕、K3〔Co（NO2）5Br〕、K3〔Co（NO2）4Cl2〕
およびK3〔Co（NO2）4Br2〕から選ばれる少なくとも１
種の無機コバルト化合物を含んでなるレジンコンクリー
ト用樹脂組成物およびこの組成物を硬化させて得られる
レジンコンクリート成形品に関する。The present invention provides a resin composition for resin concrete containing a thermosetting resin, a cobalt organic acid salt, a curing accelerator, an organic peroxide, a low-shrinking agent and silica sand, wherein the curing accelerator is Li 3 [Co (NO 2 ) 6 ], Li 3 [Co (NO 2 ) 5 Cl], Li
3 [Co (NO 2 ) 5 Br], Li 3 [Co (NO 2 ) 4 Cl 2 ], Li 3 [Co
(NO 2 ) 4 Br 2 ], Na 3 [Co (NO 2 ) 6 ], Na 3 [Co (NO 2 ) 5
Cl], Na 3 [Co (NO 2 ) 5 Br], Na 3 [Co (NO 2 ) 4 Cl 2 ], N
a 3 [Co (NO 2 ) 4 Br 2 ], K 3 [Co (NO 2 ) 6 ], K 3 [Co (NO
2 ) 5 Cl], K 3 [Co (NO 2 ) 5 Br], K 3 [Co (NO 2 ) 4 Cl 2 ]
And at least 1 selected from K 3 [Co (NO 2 ) 4 Br 2 ].
TECHNICAL FIELD The present invention relates to a resin composition for resin concrete containing one kind of inorganic cobalt compound, and a resin concrete molded article obtained by curing the composition.
本発明に用いられる熱硬化性樹脂としては特に限定され
ず、有機過酸化物を硬化剤としてラジカル重合により硬
化する樹脂であればよいが、不飽和ポリエステル樹脂ま
たはビニルエステル樹脂が好ましい。また熱硬化性樹脂
の合成材料にも特に限定はないが、不飽和ポリエステル
樹脂を使用する際には、レジンコンクリート成形品が厚
肉で容量が大きい場合、硬化発熱量が大きいと熱応力に
よるクラックが発生し易いため、低反応性の不飽和ポリ
エステル樹脂を使用して硬化発熱量を低下させるのが好
ましい。The thermosetting resin used in the present invention is not particularly limited as long as it is a resin that is cured by radical polymerization using an organic peroxide as a curing agent, but an unsaturated polyester resin or a vinyl ester resin is preferable. There is no particular limitation on the synthetic material of the thermosetting resin, but when unsaturated polyester resin is used, when the resin concrete molded product is thick and has a large capacity, cracking due to thermal stress occurs when the curing heat value is large. Therefore, it is preferable to use a low-reactivity unsaturated polyester resin to reduce the heat value of curing.
本発明に用いられるコバルト有機酸塩としては、ナフテ
ン酸コバルト、オクテン酸コバルトなどが挙げられる。
このコバルト有機酸塩の使用量は、熱硬化性樹脂100重
量部に対してコバルトの含有量が0.012〜0.3重量部の範
囲となるように用いるのが好ましい。コバルト含有量が
0.012重量部未満ではレジンコンクリートの硬化性が悪
くなることがあり、また0.1重量部を超えても硬化性が
向上せず、レジンコンクリートの価格が上昇するので好
ましくない。Examples of the cobalt organic acid salt used in the present invention include cobalt naphthenate and cobalt octenoate.
The amount of the cobalt organic acid salt used is preferably such that the cobalt content is in the range of 0.012 to 0.3 parts by weight with respect to 100 parts by weight of the thermosetting resin. Cobalt content
If it is less than 0.012 parts by weight, the hardening property of the resin concrete may be deteriorated, and if it exceeds 0.1 parts by weight, the hardening property is not improved and the price of the resin concrete increases, which is not preferable.
本発明において、硬化促進剤としては、Li3〔Co（NO2）
６〕、Li3〔Co（NO2）5Cl〕、Li3〔Co（NO2）5Br〕、Li
3〔Co（NO2）4Cl2〕、Li3〔Co（NO2）4Br2〕、Na3〔Co
（NO2）６〕、Na3〔Co（NO2）5Cl〕、Na3〔Co（NO2）5B
r〕、Na3〔Co（NO2）4Cl2〕、Na3〔Co（NO2）4Br2〕、K
3〔Co（NO2）６〕、K3〔Co（NO2）5Cl〕、K3〔Co（N
O2）5Br〕、K3〔Co（NO2）4Cl2〕、K3〔Co（NO2）4B
r2〕から選ばれる少なくとも１種の無機コバルト化合物
が用いられる。In the present invention, the curing accelerator may be Li 3 [Co (NO 2 )
6 ], Li 3 [Co (NO 2 ) 5 Cl], Li 3 [Co (NO 2 ) 5 Br], Li
3 [Co (NO 2 ) 4 Cl 2 ], Li 3 [Co (NO 2 ) 4 Br 2 ], Na 3 [Co
(NO 2 ) 6 ], Na 3 [Co (NO 2 ) 5 Cl], Na 3 [Co (NO 2 ) 5 B
r], Na 3 [Co (NO 2 ) 4 Cl 2 ], Na 3 [Co (NO 2 ) 4 Br 2 ], K
3 [Co (NO 2 ) 6 ], K 3 [Co (NO 2 ) 5 Cl], K 3 [Co (N
O 2 ) 5 Br], K 3 [Co (NO 2 ) 4 Cl 2 ], K 3 [Co (NO 2 ) 4 B
At least one inorganic cobalt compound selected from r 2 ] is used.
該硬化促進剤の含有量は、熱硬化性樹脂100重量部に対
して0.001〜0.1重量部の範囲が好ましい。この量が0.00
1重量部未満では、珪砂の水分含有量が多くなるとレジ
ンコンクリートの硬化性が改良されず、また0.1重量部
を超えると逆に硬化時間が長くなる。この硬化促進剤
は、熱硬化性樹脂に加温して直接溶解してもよいが、エ
チレングリコール、ジエチレングリコール、トリエチレ
ングリコール、メチルセロソルブ、エチルセロソルブ、
プロピルセロソルブ、ブチルセロソルブ、ジメチルスル
ホキシド、水等の極性溶媒に予め溶解したものを熱硬化
性樹脂に添加し、溶解するのが好ましい。The content of the curing accelerator is preferably 0.001 to 0.1 part by weight with respect to 100 parts by weight of the thermosetting resin. This amount is 0.00
If it is less than 1 part by weight, the hardening property of the resin concrete will not be improved if the water content of the silica sand increases, and if it exceeds 0.1 parts by weight, the hardening time will be longer. This curing accelerator may be heated and directly dissolved in a thermosetting resin, but ethylene glycol, diethylene glycol, triethylene glycol, methyl cellosolve, ethyl cellosolve,
It is preferable that a pre-dissolved product in a polar solvent such as propyl cellosolve, butyl cellosolve, dimethyl sulfoxide, and water is added to the thermosetting resin and dissolved.
本発明に用いられる有機過酸化物としては、硬化促進剤
と併用して常温で熱硬化性樹脂を硬化するものであれば
よく、例えばメチルエチルケトンパーオキサイド、シク
ロヘキサノンパーオキサイド、アセチルアセトンパーオ
キサイド等のケトンパーオキサイドが好ましく用いられ
る。このケトンパーオキサイドにクメンハイドロパーオ
キサイド等のハイドロパーオキサイドおよびｔ−ブチル
パーベンゾエート等のパーオキシエステルを併用するこ
とができる。該有機過酸化物の使用量は作業条件により
異なるが、熱硬化性樹脂100重量部に対して１〜５重量
部が好ましい。有機過酸化物の量が１重量部未満では珪
砂に水分が含まれると硬化性が悪くなることがあり、５
重量部を超えると発熱量が大きくなり、レジンコンクリ
ートの硬化時の発熱量が大きくなるため熱収縮によるク
ラックが入り易くなる。The organic peroxide used in the present invention may be one that can be used in combination with a curing accelerator to cure a thermosetting resin at room temperature, for example, methyl ethyl ketone peroxide, cyclohexanone peroxide, ketone peroxide such as acetylacetone peroxide. Oxide is preferably used. A hydroperoxide such as cumene hydroperoxide and a peroxyester such as t-butylperbenzoate can be used in combination with this ketone peroxide. The amount of the organic peroxide used varies depending on working conditions, but is preferably 1 to 5 parts by weight with respect to 100 parts by weight of the thermosetting resin. If the amount of the organic peroxide is less than 1 part by weight, the hardening property may deteriorate when the silica sand contains water.
If it exceeds the weight part, the amount of heat generation becomes large, and the amount of heat generation at the time of curing the resin concrete becomes large, so that cracks due to heat shrinkage easily occur.
本発明に用いられる低収縮剤は、レジンコンクリートが
ガラス繊維のような補強材を含まないことによる硬化収
縮による成形品のクラック発生を防止する。該低収縮剤
としては熱可塑性樹脂を用いることが好ましく、例えば
ポリスチレン、ポリメチルメタクリレート、ポリ酢酸ビ
ニル、飽和ポリエステル、ブタジエン変性ゴムなどの重
合性架橋剤に溶解するものがより好ましい。重合性架橋
剤に溶解しない熱可塑性樹脂、例えばポリエチレン粉
末、３次元スチレンポリマーなどを使用してもよい。The low-shrinkage agent used in the present invention prevents cracking of the molded product due to curing shrinkage due to the fact that the resin concrete does not contain a reinforcing material such as glass fiber. It is preferable to use a thermoplastic resin as the low-shrinking agent, and more preferable one is one that is soluble in a polymerizable cross-linking agent such as polystyrene, polymethylmethacrylate, polyvinyl acetate, saturated polyester, or butadiene-modified rubber. You may use the thermoplastic resin which does not melt | dissolve in a polymeric crosslinking agent, for example, polyethylene powder, three-dimensional styrene polymer, etc.
上記重合性架橋剤としては、例えばスチレン、ビニルト
ルエン、α−メチルスチレン、ジビニルベンゼン、ジア
クリルフタレート、ジアクリルフタレートプレポリマ
ー、クロロスチレン、ジクロルスチレン、ブロムスチレ
ン、ジブロムスチレン、ジアリルベンゼンホスホネー
ト、ジアリルアリールホスフィン酸エステル、アクリル
酸エステル、メタアクリル酸エステルアリルシアヌレー
ト、トリブロモフェノールアリルエーテルなどが用いら
れる。これらは１種または２種以上併用することができ
る。Examples of the polymerizable cross-linking agent include styrene, vinyltoluene, α-methylstyrene, divinylbenzene, diacrylphthalate, diacrylphthalate prepolymer, chlorostyrene, dichlorostyrene, bromostyrene, dibromostyrene, diallylbenzenephosphonate, Diallyl aryl phosphinic acid ester, acrylic acid ester, methacrylic acid ester allyl cyanurate, tribromophenol allyl ether and the like are used. These may be used alone or in combination of two or more.
熱硬化性樹脂が不飽和ポリエステル樹脂である場合の低
収縮剤の含有量は特に限定されないが、熱可塑性樹脂換
算で不飽和ポリエテル樹脂100重量部に対して３〜30重
量部が好ましい。低収縮剤が３重量部未満では低収縮効
果が得られないことがあり、30重量部を超えるとレジン
コンクリートの強度が低下することがある。When the thermosetting resin is an unsaturated polyester resin, the content of the low-shrinking agent is not particularly limited, but is preferably 3 to 30 parts by weight based on 100 parts by weight of the unsaturated polyester resin in terms of the thermoplastic resin. If the amount of the low shrinkage agent is less than 3 parts by weight, the low shrinkage effect may not be obtained, and if it exceeds 30 parts by weight, the strength of the resin concrete may be reduced.
本発明に用いられる珪砂としては、川砂、海砂、砕石な
どが挙げられ、各粒径の市販品を単独または混合して用
いることができる。該使用量および粒径の異なる珪砂の
混合比は、強度向上、レジンコンクリート製品価格の低
下などの点から適宜決定される。Examples of the silica sand used in the present invention include river sand, sea sand, and crushed stone, and commercial products of each particle size can be used alone or in combination. The use ratio and the mixing ratio of silica sand having different particle sizes are appropriately determined from the standpoints of improving strength and lowering the price of resin concrete products.
本発明になるレジンコンクリート用樹脂組成物を鉄製、
木製、プラスチック製等の型の中に注形し、室温または
加温して硬化させてレジンコンクリート成形品とするこ
とができる。The resin composition for resin concrete according to the present invention is made of iron,
It can be cast into a mold made of wood, plastic, etc. and cured at room temperature or by heating to obtain a resin concrete molded product.
以下、本発明を実施例により詳しく説明する。なお、例
中、％とあるのは特に断らない重量％を意味する。Hereinafter, the present invention will be described in detail with reference to Examples. In the examples,% means weight% unless otherwise specified.
実施例１〜５および比較例１〜５ ２の４つ口フラスコに無水マレイン酸353g、無水フタ
ル酸651gおよびプロピレングリコール669gを仕込み、窒
素ガス気流中で150〜200℃で８時間加熱縮合し、酸価34
の不飽和ポリエステルを得た。この不飽和ポリエステル
60重量部を、予めハイドロキノン0.027重量部を溶解し
たスチレン40重量部に溶解し、不飽和ポリエステル樹脂
（これを樹脂−Ａと称する）を得た。Into the four-necked flasks of Examples 1 to 5 and Comparative Examples 1 to 52 were charged 353 g of maleic anhydride, 651 g of phthalic anhydride and 669 g of propylene glycol, and the mixture was heated and condensed at 150 to 200 ° C. for 8 hours in a nitrogen gas stream, Acid value 34
Of unsaturated polyester was obtained. This unsaturated polyester
60 parts by weight was dissolved in 40 parts by weight of styrene in which 0.027 parts by weight of hydroquinone was dissolved in advance to obtain an unsaturated polyester resin (this is referred to as Resin-A).
得られた樹脂−Ａ、100重量部に、予めK3〔Co（N
O2）６〕８重量部をジエチレングリコール92重量部に添
加して加熱溶解したK3〔Co（NO2）６〕溶液１重量部を
加えた（これを樹脂−Ｂと称する）。100 parts by weight of the obtained resin-A was previously added with K 3 [Co (N
8 parts by weight of O 2 ) 6 ] was added to 92 parts by weight of diethylene glycol, and 1 part by weight of a K 3 [Co (NO 2 ) 6 ] solution that had been heated and dissolved was added (this is referred to as resin-B).
得られた樹脂−Ａまたは樹脂−Ｂを用い、砕石を加えな
いで、第１表に示す配合でそれぞれ樹脂組成物（Ａ）お
よび（Ｂ）を作製し、その硬化時間を調べたところ、第
１表に示す結果が得られた。Using the obtained Resin-A or Resin-B, resin compositions (A) and (B) were prepared with the formulations shown in Table 1 without adding crushed stones, and the curing time was examined. The results shown in Table 1 were obtained.
第１表から、樹脂−Ａおよび樹脂−Ｂをそれぞれ用いた
砕石を用いない組成物（Ａ）および（Ｂ）は、ともに硬
化剤量の増加に伴い硬化時間が短縮されることが示され
る。 From Table 1, it is shown that the crushed stone-free compositions (A) and (B) using the resin-A and the resin-B, respectively, shorten the curing time as the amount of the curing agent increases.
次に上記樹脂−Ａ（比較例１〜５）または樹脂−Ｂ（実
施例１〜５）を用い、かつ水分量の異なる砕石を用いて
第２表に示す配合でレジンコンクリートを下記の方法で
作製し、その硬化時間を調べた。その結果を第２表に示
した。Next, resin-A (Comparative Examples 1 to 5) or Resin-B (Examples 1 to 5) was used, and crushed stones having different water contents were used to prepare resin concrete with the composition shown in Table 2 by the following method. It was prepared and its curing time was examined. The results are shown in Table 2.
＜レジンコンクリートの作製方法＞ 樹脂にポリスチレン30％溶液（日立化成社製商品名PS−
B9145）を加えた後、55％メチルエチルケトンパーオキ
シドを添加し、よく混合し、その後、ただちに砕石を入
れて混合し、鉄製の型に注形し室温で硬化させた。<Method for producing resin concrete> 30% polystyrene solution in resin (Hitachi Chemical Co., Ltd. product name PS-
B9145), 55% methyl ethyl ketone peroxide was added and mixed well, then crushed stones were immediately added and mixed, cast in an iron mold and cured at room temperature.
第２表から、実施例１および比較例２ともに砕石中の水
分量が増えるとレジンコンクリートの硬化時間が長くな
り、また実施例１では水分が増してもレジンコンクリー
トの硬化時間の変動は少ないが、硬化促進剤を加えてい
ない比較例１では水分量が0.6％では５時間たっても硬
化せず、水分の量によって硬化時間の変動が非常に大き
いことが示された。 From Table 2, in both Example 1 and Comparative Example 2, the hardening time of the resin concrete increases as the water content in the crushed stone increases, and in Example 1, the hardening time of the resin concrete varies little even if the water content increases. In Comparative Example 1 in which the curing accelerator was not added, it was not cured even after 5 hours when the water content was 0.6%, and it was shown that the variation of the curing time was very large depending on the water content.
実施例６、７および比較例６、７ 実施例１で得た樹脂−Ａおよび樹脂−Ｂをそれぞれ用い
て第２表に示す配合、すなわち、砕石中の水分量および
硬化剤量を変化させてそれぞれのレジンコンクリートを
実施例１と同様にして作製し、その硬化時間を測定し
た。その結果を第３表に示した。Examples 6 and 7 and Comparative Examples 6 and 7 Using the resin-A and the resin-B obtained in Example 1, respectively, the formulations shown in Table 2, that is, the amount of water in the crushed stone and the amount of the curing agent were changed. Each resin concrete was prepared in the same manner as in Example 1, and the curing time was measured. The results are shown in Table 3.
第３表から、実施例では、水分量が増えても55％メチル
エチルケトンパーオキシドの量を増やせば硬化時間を短
くすることができるが、硬化促進剤を加えていない比較
例では、水分量が増えた場合、55％メチルエチルケトン
パーオキシドの量を増やしても硬化時間を短くできない
ことが示される。 From Table 3, in Examples, even if the amount of water increases, the curing time can be shortened by increasing the amount of 55% methyl ethyl ketone peroxide, but in the Comparative Example in which no curing accelerator is added, the amount of water increases. It shows that increasing the amount of 55% methyl ethyl ketone peroxide cannot shorten the curing time.
本発明のレジンコンクリート用樹脂組成物によれば、組
成物の硬化時間を短縮できるとともに、珪砂中の水分量
による硬化時間の変動を大幅に減少させることができる
ため、レジンコンクリート成形品の生産性を大幅に向上
させ、低コスト化を図ることができる。According to the resin composition for resin concrete of the present invention, the curing time of the composition can be shortened, and the fluctuation of the curing time due to the amount of water in the silica sand can be significantly reduced, so that the productivity of the resin concrete molded product can be improved. Can be significantly improved and the cost can be reduced.
Claims (4)
進剤、有機過酸化物、低収縮剤および珪砂を含むレジン
コンクリート用樹脂組成物において、前記硬化促進剤と
して、Li3〔Co（NO2）６〕、Li3〔Co（NO2）5Cl〕、Li3
〔Co（NO2）5Br〕、Li3〔Co（NO2）4Cl2〕、Li3〔Co（N
O2）4Br2〕、Na3〔Co（NO2）６〕、Na3〔Co（NO2）5C
l〕、Na3〔Co（NO2）5Br〕、Na3〔Co（NO2）4Cl2〕、Na
3〔Co（NO2）4Br2〕、K3〔Co（NO2）６〕、K3〔Co（N
O2）5Cl〕、K3〔Co（NO2）5Br〕、K3〔Co（NO2）4Cl2〕
およびK3〔Co（NO2）4Br2〕から選ばれる少なくとも１
種の無機コバルト化合物を含んでなるレジンコンクリー
ト用樹脂組成物。1. A resin composition for resin concrete containing a thermosetting resin, a cobalt organic acid salt, a curing accelerator, an organic peroxide, a low-shrinking agent and silica sand, wherein Li 3 [Co ( NO 2 ) 6 ], Li 3 [Co (NO 2 ) 5 Cl], Li 3
[Co (NO 2 ) 5 Br], Li 3 [Co (NO 2 ) 4 Cl 2 ], Li 3 [Co (N
O 2 ) 4 Br 2 ], Na 3 [Co (NO 2 ) 6 ], Na 3 [Co (NO 2 ) 5 C
l], Na 3 [Co (NO 2 ) 5 Br], Na 3 [Co (NO 2 ) 4 Cl 2 ], Na
3 [Co (NO 2 ) 4 Br 2 ], K 3 [Co (NO 2 ) 6 ], K 3 [Co (N
O 2 ) 5 Cl], K 3 [Co (NO 2 ) 5 Br], K 3 [Co (NO 2 ) 4 Cl 2 ]
And at least 1 selected from K 3 [Co (NO 2 ) 4 Br 2 ].
A resin composition for resin concrete, comprising one kind of inorganic cobalt compound.
が、熱硬化性樹脂100重量部に対して0.012〜0.3重量部
の範囲であり、前記硬化促進剤の含有量が熱硬化性樹脂
100重量部に対して0.001〜0.1重量部の範囲である請求
項１記載のレジンコンクリート用樹脂組成物。2. The content of cobalt in the cobalt organic acid salt is in the range of 0.012 to 0.3 parts by weight with respect to 100 parts by weight of the thermosetting resin, and the content of the curing accelerator is in the thermosetting resin.
The resin composition for resin concrete according to claim 1, which is in the range of 0.001 to 0.1 part by weight relative to 100 parts by weight.
１記載のレジンコンクリート用樹脂組成物。3. The resin composition for resin concrete according to claim 1, wherein the low-shrinking agent is a thermoplastic resin.
組成物を型に注型し、硬化させて得られるレジンコンク
リート成形品。4. A resin concrete molded article obtained by casting the resin composition for resin concrete according to claim 1 in a mold and curing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP126990A JPH0714831B2 (en) | 1990-01-08 | 1990-01-08 | Resin composition for resin concrete and resin concrete molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP126990A JPH0714831B2 (en) | 1990-01-08 | 1990-01-08 | Resin composition for resin concrete and resin concrete molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03208845A JPH03208845A (en) | 1991-09-12 |
| JPH0714831B2 true JPH0714831B2 (en) | 1995-02-22 |
Family
ID=11496735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP126990A Expired - Lifetime JPH0714831B2 (en) | 1990-01-08 | 1990-01-08 | Resin composition for resin concrete and resin concrete molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0714831B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08208298A (en) * | 1995-01-30 | 1996-08-13 | Nippon Telegr & Teleph Corp <Ntt> | Resin material |
| CN104692711B (en) * | 2015-02-09 | 2017-01-11 | 陈真全 | Artificial jade spar material and preparation method thereof |
-
1990
- 1990-01-08 JP JP126990A patent/JPH0714831B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03208845A (en) | 1991-09-12 |
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