JPH0223523B2 - - Google Patents
Info
- Publication number
- JPH0223523B2 JPH0223523B2 JP8697781A JP8697781A JPH0223523B2 JP H0223523 B2 JPH0223523 B2 JP H0223523B2 JP 8697781 A JP8697781 A JP 8697781A JP 8697781 A JP8697781 A JP 8697781A JP H0223523 B2 JPH0223523 B2 JP H0223523B2
- Authority
- JP
- Japan
- Prior art keywords
- methyl methacrylate
- molecular weight
- polymer
- weight
- mixed
- 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.)
- Expired - Lifetime
Links
- 229920000642 polymer Polymers 0.000 claims description 43
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 11
- 239000011505 plaster Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims 1
- 239000011342 resin composition Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XFCMNSHQOZQILR-UHFFFAOYSA-N 2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOC(=O)C(C)=C XFCMNSHQOZQILR-UHFFFAOYSA-N 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- XYOYXSOAFOGJKV-UHFFFAOYSA-N chloroethene;methyl 2-methylprop-2-enoate Chemical compound ClC=C.COC(=O)C(C)=C XYOYXSOAFOGJKV-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
Description
【発明の詳細な説明】
本発明は歯科義歯床用樹脂の製作方法に関する
もので、粉末ポリマーと液状モノマーを一定割合
で混合して得られる混合物の可塑性が大きく更に
石こう型填入の可塑状態（餅状）時間を長くする
方法に関するものである。
現在広く使用されている義歯床用材料としての
メタクリル酸メチルは、口腔内という特殊環境下
において、化学的に安定で為害作用が少なく、物
理的ならびに機械的性質も良好であり色調の調整
も可能なだけでなく、成形が容易であるなど、床
用材料として好ましい多くの性質をも具備してい
る。このメタクリル酸メチルを用い、実用し得る
公知の方法としては、粉液重合法がある。
粉液重合法には、加熱重合樹脂と常温重合樹脂
とがあり、常温重合樹脂は、義歯床の適合性及び
作業能率などの改良を目的として開発されたもの
であるが、残留モノマー量や機械的強度が劣るな
どの点で問題が残されていることから、いまだ十
分に普及されていない。一方加熱重合樹脂は、機
械的性質が良好なだけでなく、残留モノマーによ
る弊害も少ないという利点から広く採用されてい
る。しかし粉液加熱重合法は、粉末状ポリマーと
液状モノマーとを混合して、適当な可塑性物質
（餅状状態）となし、これを石こう型に填入し、
加圧加熱を行なつて成形する方法であるから、良
好な可塑物を容易に得ることが操作上望ましい。
即ち餅状になる以前に填入すると気泡が発生しや
すく、餅状を過ぎて填入すると細部までレジンが
行き渡らなくなつて不良品を生ずる場合が多い。
このようなことから、填入は餅状状態で行なわ
れることが望ましいが、従来までの樹脂では餅状
時間が非常に短いため、同時に多数個の義歯床を
成形する場合、何度も混和を繰返さなければなら
ず、填入した残りの樹脂はそのまま廃棄せられ再
使用は不可能である等、技工操作に支障をきたす
ことが多く、最近メタクリル酸メチルを主成分と
する義歯床用樹脂の餅状時間を延長する方法とし
ては、ポリマー面からはポリマーの粒度分布の調
整、メタクリル酸ブチルなどとメタクリル酸メチ
ルとの共重合物や塩化ビニルとメタクリル酸メチ
ルとの共重合物を混入する方法、更にモノマー面
からはメタクリル酸メチルと側鎖長の異なるメタ
クリル酸エステルとのコモノマーを用いる方法、
その他種々の方法が試みられたが、いずれの場合
も環境温度によつて大きく左右され、大巾な餅状
時間の延長は達成されなかつた。しかしながら、
本発明は従来考えられないほどの大きな可塑性下
でも良好な義歯床が得られることを可能にしたも
のであり、かつ本発明の樹脂成分は、混和時の温
度による影響が極めて小さいので、年中を通じて
かなり大巾に変動する環境下でも、容易に餅状化
を制御することが出来るという作用効果を有す
る。即ち本発明では粉末状ポリマーと液状モノマ
ーとを混合して餅状物を得るようにしたものであ
り、ポリマーを膨潤溶解させて高濃度ポリマー溶
液を作製することである。本発明では使用樹脂成
分の粉部として、モノマーに膨潤溶解しにくい高
分子量のメタクリル酸メチル重合体と速やかに膨
潤溶解する低分子量のメタクリル酸メチル重合体
を配合含有させたため、これらポリマー間に膨潤
溶解速度の差が生じて、餅状期間を長く持続する
ものである。
更に低分子量のメタクリル酸メチル重合体は、
同一時間、同一温度条件下では、混合物の凝集性
が小さく、可塑性が非常に大きいことにより、低
分子量のメタクリル酸メチル重合体を含有する本
発明では従来考えられないほどの大きな可塑性下
でも良好な義歯床を得ることが可能となつた。本
発明者は粉末状ポリマーとして異なる分子量を持
つメタクリル酸メチル重合体を混合し、液状モノ
マーと混合物を作りその特性（餅状時間、硬度、
弾性、吸水性、圧縮強さ、引張り強さ、曲げ強
さ）を測定し、その結果によれば低分子量のメタ
クリル酸メチル重合体は平均分子量５万〜20万で
その含有量30〜70％、高分子量のメタクリル酸メ
チル重合体は平均分子量30万〜80万でその含有量
70〜30％が適当であるという知見を得た。
本発明においてメタクリル酸メチル重合体の平
均分子量を規定するのは、低分子量の粉末状ポリ
マーの含有量が多くなると液状モノマーとの混合
物の可塑性が大きくなり良好な義歯床を得ること
が出来ずまた物性面での低下も認められた。また
高分子量の粉末状ポリマーの含有量が多くなると
液状モノマーとの混合物の可塑性が小さく、また
餅状期間が非常に短く本発明の目的が達せられな
い等の欠点を生じるためである。また液状モノマ
ー群は、重合可能な液状モノマーであれば単独ま
たは混合して用いることは差支えない。更に加え
て本発明による義歯床用樹脂を用いれば従来に比
べ、より軟質の石こう型を使うことも可能とな
り、その結果加熱重合後樹脂床義歯を石こう型か
ら取り出すことが簡単となり、また取り出す際の
義歯の破折等の問題も解決出来、大巾な技工操作
時間の短縮が可能となつた。軟質の石こう型製造
は石こうの硬化反応に影響を与えないシリカ粉
末、ガラス粉末等の無機質フイラーやカオリン、
活性白土ケイ砂、タルクなどの鉱産物を10〜50％
配合することにより容易に得ることができる。
以下、本発明の実施例及び対照例を示し説明す
るが、その結果は第一表(1)，(2)の如くであり、餅
状時間も大巾に延長され、環境温度による影響が
非常に小さく、かつ物性的諸性質も改良されてい
る。
実施例 １
平均分子量５万のメタクリル酸メチル重合体40
重量部、平均分子量80万のメタクリル酸メチル重
合体60重量部を混合して粉末状ポリマーとした。
粉末状ポリマーとメタクリル酸メチルモノマー液
とを重量比率２：１で混和した。レジン混和物の
可塑性は義歯床用アクリリツク樹脂のJIST6501
の可塑性試験に準じて測定した。即ちガラス板の
上に置いた内径25mm、高さ15mmの金属型に上記レ
ジン混和物を入れ、ただちに金属型をガラス板で
密閉する。所定の温度で、所定の時間が経過した
ら、金属型を取りはずして、試料にガラス板とお
もりをのせて合計100gの荷重を３分間負荷する。
このとき二枚のガラス板の間の試料の平行線間の
距離を測定した。
また餅状化時間は混合開始からガラス容器に付
着しないで離れるようになるまでの時間で表わし
た。
硬度、吸水量、曲げ強さ、引張り強さ等は上記
レジン混和物を石こう型に填入し、JIST6501に
準じて、70℃水中で１，５時間加熱後、さらに沸
騰水中で30分加熱し、得られた重合レジンを試験
の試料とした。
実施例 ２
平均分子量10万のメタクリル酸メチル重合体50
重量部、平均分子量50万のメタクリル酸メチル重
合体50重量部を混合して粉末状ポリマーとした。
粉末状ポリマーとメタクリル酸メチル70重量部、
メタクリル酸ブチル30重量部混合モノマー液とを
重量比率２：１で混和した。
実施例 ３
平均分子量８万のメタクリル酸メチル重合体30
重量部、平均分子量15万のメタクリル酸メチル重
合体30重量部および平均分子量60万のメタクリル
酸メチル重合体40重量部を混合して粉末状ポリマ
ーとした。粉末状ポリマーとメタクリル酸メチル
80重量部、ジエチレングリコールジメタクリレー
ト20重量部混合モノマー液とを重量比率２：１で
混和した。
対照例 １
平均分子量80万のメタクリル酸メチル重合体と
メタクリル酸メチルモノマー液とを重量比率２：
１で混和した。
対照例 ２
平均分子量10万のメタクリル酸メチル重合体と
メタクリル酸メチルモノマー液とを重量比率２：
１で混和した。
対照例 ３
メタクリル酸メチル重合体70重量部、メタクリ
ル酸メチル−メタクリル酸ブチル共重合体30重量
部を混合して粉末状ポリマーとした。粉末状ポリ
マーとメタクリル酸メチル60重量部、メタクリル
酸ブチル40重量部混合モノマー液とを重量比率
２：１で混和した。
対照例 ４
メタクリル酸メチル重合体90重量部、塩化ビニ
ル−メタクリル酸メチル重合体10重量部を混合し
て粉末状ポリマーとした。
粉末状ポリマーとメタクリル酸メチル70重量
部、ポリエチレングリコール＃200ジメタクリレ
ート30重量部混合モノマー液とを重量比率２：１
で混和した。
【表】DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a resin for dental denture bases, in which the mixture obtained by mixing a powdered polymer and a liquid monomer in a certain ratio has a high plasticity, and furthermore, the plasticity state of the plaster mold filling ( It concerns a method of increasing the time (rice cake-like). Methyl methacrylate, which is currently widely used as a material for denture bases, is chemically stable in the special environment of the oral cavity, has few harmful effects, has good physical and mechanical properties, and can be adjusted in color. In addition, it has many properties that make it desirable as a flooring material, such as ease of molding. A known practical method using this methyl methacrylate is a powder-liquid polymerization method. There are two types of powder-liquid polymerization methods: heat-polymerized resins and room-temperature polymerization resins.Room-temperature polymerization resins were developed to improve the suitability of denture bases and work efficiency; However, it is still not widely used as there are still problems such as poor performance. On the other hand, heat-polymerized resins are widely used because they not only have good mechanical properties but also have fewer harmful effects due to residual monomers. However, in the powder-liquid heating polymerization method, a powdered polymer and a liquid monomer are mixed to form a suitable plastic material (rice cake-like state), which is then filled into a plaster mold.
Since this is a method of molding by applying pressure and heating, it is desirable for the operation to easily obtain a good plastic material.
That is, if it is inserted before it becomes cake-like, air bubbles are likely to occur, and if it is inserted after it has become cake-like, the resin will not be able to reach every detail, often resulting in defective products. For this reason, it is desirable to perform fillings in a sticky state, but since conventional resins have a very short sticky time, when molding many denture bases at the same time, they must be mixed many times. The process often has to be repeated, and the remaining resin is discarded and cannot be reused, which often hinders the technical operations.Recently, denture base resins based on methyl methacrylate From the polymer perspective, methods for extending the cake-like time include adjusting the particle size distribution of the polymer, and incorporating copolymers of butyl methacrylate and methyl methacrylate, or copolymers of vinyl chloride and methyl methacrylate. Furthermore, from the monomer perspective, a method using a comonomer of methyl methacrylate and a methacrylic acid ester with different side chain lengths,
Various other methods have been tried, but in all cases they are largely dependent on the environmental temperature, and no significant extension of the glutinous time has been achieved. however,
The present invention makes it possible to obtain a good denture base even under conditions of high plasticity that was previously unimaginable, and since the resin component of the present invention is extremely unaffected by temperature during mixing, it can be used year-round. It has the effect of being able to easily control cake-like formation even under environments that fluctuate widely throughout the process. That is, in the present invention, a powdered polymer and a liquid monomer are mixed to obtain a rice cake-like product, and a highly concentrated polymer solution is prepared by swelling and dissolving the polymer. In the present invention, as the powder part of the resin component used, a high molecular weight methyl methacrylate polymer that does not easily swell and dissolve in the monomer and a low molecular weight methyl methacrylate polymer that quickly swells and dissolves in the monomer are mixed and contained, so that swelling occurs between these polymers. This creates a difference in dissolution rate, resulting in a long sticky period. Furthermore, low molecular weight methyl methacrylate polymer is
Under the same time and temperature conditions, the mixture has low cohesiveness and very high plasticity, so the present invention, which contains a low molecular weight methyl methacrylate polymer, has good performance even under unimaginable large plasticity. It became possible to obtain denture bases. The present inventor mixed methyl methacrylate polymers with different molecular weights as powdered polymers, created a mixture with liquid monomer, and created a mixture with its properties (rice cake time, hardness,
The results showed that the low molecular weight methyl methacrylate polymer has an average molecular weight of 50,000 to 200,000 and a content of 30 to 70%. , high molecular weight methyl methacrylate polymer has an average molecular weight of 300,000 to 800,000 and its content
We found that 70-30% is appropriate. In the present invention, the average molecular weight of the methyl methacrylate polymer is specified because if the content of the low molecular weight powdered polymer increases, the plasticity of the mixture with the liquid monomer increases, making it impossible to obtain a good denture base. A decrease in physical properties was also observed. In addition, if the content of the high molecular weight powdered polymer increases, the plasticity of the mixture with the liquid monomer will be low, and the cake-like period will be very short, making it impossible to achieve the purpose of the present invention. Further, the liquid monomer group may be used alone or in combination as long as it is a polymerizable liquid monomer. In addition, by using the resin for denture bases according to the present invention, it is possible to use a softer plaster mold than in the past, and as a result, it is easier to remove the resin-based denture from the plaster mold after heat polymerization, and it is easier to remove the resin base denture from the plaster mold. Problems such as broken dentures can be solved, and it has become possible to significantly reduce the amount of time required for technician operations. The production of soft plaster molds uses inorganic fillers such as silica powder and glass powder, kaolin, etc. that do not affect the hardening reaction of plaster.
10-50% mineral products such as activated clay silica sand and talc
It can be easily obtained by blending. Examples and comparative examples of the present invention will be shown and explained below, and the results are as shown in Table 1 (1) and (2). It is smaller in size and has improved physical properties. Example 1 Methyl methacrylate polymer 40 with an average molecular weight of 50,000
60 parts by weight of methyl methacrylate polymer having an average molecular weight of 800,000 were mixed to obtain a powdered polymer.
The powdered polymer and methyl methacrylate monomer liquid were mixed at a weight ratio of 2:1. The plasticity of resin mixtures is determined by JIST6501 for acrylic resins for denture bases.
It was measured according to the plasticity test. That is, the resin mixture is placed in a metal mold with an inner diameter of 25 mm and a height of 15 mm placed on a glass plate, and the metal mold is immediately sealed with a glass plate. After a predetermined time has elapsed at a predetermined temperature, the metal mold is removed, a glass plate and a weight are placed on the sample, and a total load of 100 g is applied for 3 minutes.
At this time, the distance between the parallel lines of the sample between the two glass plates was measured. The cake-forming time was expressed as the time from the start of mixing until the mixture began to separate from the glass container without adhering to it. Hardness, water absorption, bending strength, tensile strength, etc. are determined by filling the above resin mixture into a plaster mold, heating it in water at 70℃ for 1.5 hours, and then heating it in boiling water for 30 minutes in accordance with JIST6501. The obtained polymerized resin was used as a test sample. Example 2 Methyl methacrylate polymer 50 with an average molecular weight of 100,000
50 parts by weight of methyl methacrylate polymer having an average molecular weight of 500,000 were mixed to prepare a powdered polymer.
Powdered polymer and 70 parts by weight of methyl methacrylate,
30 parts by weight of butyl methacrylate and mixed monomer liquid were mixed at a weight ratio of 2:1. Example 3 Methyl methacrylate polymer 30 with an average molecular weight of 80,000
30 parts by weight of a methyl methacrylate polymer having an average molecular weight of 150,000 and 40 parts by weight of a methyl methacrylate polymer having an average molecular weight of 600,000 were mixed to obtain a powdered polymer. Powdered polymer and methyl methacrylate
80 parts by weight and 20 parts by weight of diethylene glycol dimethacrylate mixed monomer liquid were mixed at a weight ratio of 2:1. Control example 1 Methyl methacrylate polymer with an average molecular weight of 800,000 and methyl methacrylate monomer liquid at a weight ratio of 2:
Mixed at 1. Control Example 2 A methyl methacrylate polymer with an average molecular weight of 100,000 and a methyl methacrylate monomer liquid were mixed at a weight ratio of 2:
Mixed at 1. Control Example 3 70 parts by weight of methyl methacrylate polymer and 30 parts by weight of methyl methacrylate-butyl methacrylate copolymer were mixed to prepare a powdered polymer. The powdered polymer and a mixed monomer liquid containing 60 parts by weight of methyl methacrylate and 40 parts by weight of butyl methacrylate were mixed at a weight ratio of 2:1. Control Example 4 90 parts by weight of methyl methacrylate polymer and 10 parts by weight of vinyl chloride-methyl methacrylate polymer were mixed to prepare a powdered polymer. Powdered polymer, 70 parts by weight of methyl methacrylate, and 30 parts by weight of polyethylene glycol #200 dimethacrylate mixed monomer liquid in a weight ratio of 2:1.
It was mixed with 【table】
Claims (1)
おいて、粉末ポリマーとして平均分子量５〜20万
の低分子量のものが30〜70％と、平均分子量30〜
80万の高分子量のものが70〜30％とからなる異な
る分子量を持つメタクリル酸メチル重合体と重合
性液状モノマーから形成されて成ることを特徴と
する義歯床用樹脂組成物。 ２ メタクリル酸メチルを主成分とする義歯床用
樹脂において、軟質の石こう型により義歯床を作
成するための特許請求の範囲第１項記載の義歯床
用組成物。[Claims] 1. In a resin for denture bases containing methacrylic acid as a main component, 30 to 70% of powder polymers are low molecular weight with an average molecular weight of 50,000 to 200,000;
A resin composition for a denture base, characterized in that it is formed from methyl methacrylate polymers having different molecular weights, 70 to 30% of which have a high molecular weight of 800,000, and a polymerizable liquid monomer. 2. The denture base composition according to claim 1, which is used to prepare a denture base using a soft plaster mold in a denture base resin containing methyl methacrylate as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8697781A JPS57203006A (en) | 1981-06-08 | 1981-06-08 | Resin composition for denture base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8697781A JPS57203006A (en) | 1981-06-08 | 1981-06-08 | Resin composition for denture base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57203006A JPS57203006A (en) | 1982-12-13 |
| JPH0223523B2 true JPH0223523B2 (en) | 1990-05-24 |
Family
ID=13901926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8697781A Granted JPS57203006A (en) | 1981-06-08 | 1981-06-08 | Resin composition for denture base |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57203006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174461A (en) * | 2007-01-16 | 2008-07-31 | Sun Medical Co Ltd | Dental polymerizable composition |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993017652A1 (en) * | 1992-03-13 | 1993-09-16 | Mitsubishi Rayon Co., Ltd. | Spherical particle as dental plate material, production thereof, and dental plate resin composition |
| JP3155389B2 (en) * | 1993-03-05 | 2001-04-09 | 株式会社モルテン | Dental photopolymer resin material |
| JP2008519121A (en) * | 2004-11-03 | 2008-06-05 | メイクベイル グループ リミテッド | Production of acrylate solids |
| JP5331697B2 (en) * | 2007-09-13 | 2013-10-30 | サンメディカル株式会社 | Dental polymerizable composition and kit thereof |
-
1981
- 1981-06-08 JP JP8697781A patent/JPS57203006A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174461A (en) * | 2007-01-16 | 2008-07-31 | Sun Medical Co Ltd | Dental polymerizable composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57203006A (en) | 1982-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4711913A (en) | Interpenetrating polymer network compositions employing rubber-modified polymers | |
| US4308190A (en) | Dental materials based on organic plastics in paste form | |
| US5210109A (en) | Interpenetrating polymer network compositions employing rubber-modified polymers | |
| JPS60173058A (en) | Mutually penetrating polymer network composition using rubber modified polymer | |
| US4863977A (en) | Process for preparing interpenetrating polymer network objects employing rubber-modified polymers | |
| US2347320A (en) | Casting composition | |
| US4115479A (en) | Casting resins by polymerizing liquid monomer in mixture of particulated vinyl halide resins | |
| CN102525828A (en) | Poly methyl acrylyl oxygen ethyl trimethyl ammonium chloride-methyl methacrylate-silica denture base material and preparation method thereof | |
| JPH02221211A (en) | Dental composition containing difunctional acrylic ester or methacrylic ester | |
| JPH0223523B2 (en) | ||
| JPS5949251B2 (en) | molding composition | |
| US8436070B2 (en) | Pasty polymerizable dental compounds and method for producing the same | |
| GB760344A (en) | Mouldable masses and moulded bodies produced therefrom | |
| US8067482B2 (en) | Material for producing plastic molded parts that can be used in the field of dentistry | |
| US2745817A (en) | Dental material | |
| JP2885555B2 (en) | Denture base resin composition | |
| CN103622836B (en) | Poly-2-acrylamide-2-methylpro panesulfonic acid-methyl methacrylate-galapectite denture base material and preparation method | |
| RU2189992C2 (en) | Method of manufacturing products, coatings, and films based on fluoroelastomer | |
| JPH034041B2 (en) | ||
| KR20170028929A (en) | A multi-part acrylic cold-curing composition | |
| JPH02212407A (en) | Resin composition for denture base | |
| JPS6078906A (en) | Hardener for dental cement | |
| JPH02270806A (en) | Production of denture base | |
| JP5177385B2 (en) | Manufacturing method of denture base material | |
| JP3155389B2 (en) | Dental photopolymer resin material |