JPH04109133A - Thermo-sensitive transparent/opaque conversion composition material and temperature sensor using it - Google Patents
Thermo-sensitive transparent/opaque conversion composition material and temperature sensor using itInfo
- Publication number
- JPH04109133A JPH04109133A JP22522090A JP22522090A JPH04109133A JP H04109133 A JPH04109133 A JP H04109133A JP 22522090 A JP22522090 A JP 22522090A JP 22522090 A JP22522090 A JP 22522090A JP H04109133 A JPH04109133 A JP H04109133A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- opaque
- transparent
- polyisoprene
- trans
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title abstract 5
- 229920003212 trans-1,4-polyisoprene Polymers 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000011521 glass Substances 0.000 abstract description 5
- 239000000049 pigment Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 229920001195 polyisoprene Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000006903 response to temperature Effects 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- -1 bimetals Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010538 cationic polymerization reaction Methods 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000002650 laminated plastic Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
［産業上の利用分野１
本発明は、特定の温度未満では不透明で、この特定温度
以上になると透明化する感温透明−不透明変換組成物及
びこの感温透明−不透明変換組成物を用いた温度センサ
に関するものである。
［従来の技術］
近年、外部刺激に応答して状態が変化する材料は種々開
発され、センサその他の機能部品等として各種の分析、
計測、制御等の分野において便用されるようになってき
ている。これら各種の材料のうち、熱刺激に応答する素
材、即ち温度変化に応じて状態が変化する素材としては
、バイメタル、熱転対等が従来から広く知られており、
また形状記憶合金や形状記憶樹脂等も開発されている。
これらは温度変化によって形状が変化するものであって
、この性質を利用して、温度センサとしてはもとより、
アクチュエータ等のサーモメカニカル的な分野での応用
も期待されている。
また、感熱性材料として、所謂サーモクロミズムを利用
した感熱紙、液晶等も知られている。さらに、ある特定
の温度状態において、色が変化する化合物〔水熱顔料〕
を用いて、色の変化によってそのときの温度を知るセン
サとして用いることができるようにしたものも開発され
ている。[Industrial Application Field 1] The present invention relates to a temperature-sensitive transparent-to-opaque conversion composition that is opaque below a specific temperature and becomes transparent at a temperature above this specific temperature, and a temperature-sensitive transparent-to-opaque conversion composition using this temperature-sensitive transparent-to-opaque conversion composition. It is related to sensors. [Prior Art] In recent years, various materials that change state in response to external stimuli have been developed, and are used as sensors and other functional parts for various analyzes and
It has come to be conveniently used in fields such as measurement and control. Among these various materials, bimetals, thermoplastics, etc. have been widely known as materials that respond to thermal stimulation, that is, materials that change their state according to temperature changes.
Shape memory alloys and shape memory resins have also been developed. These have a shape that changes with temperature changes, and by utilizing this property, they can be used not only as temperature sensors, but also as temperature sensors.
Applications in thermomechanical fields such as actuators are also expected. Further, as heat-sensitive materials, thermal paper, liquid crystal, etc. that utilize so-called thermochromism are also known. Furthermore, compounds that change color under certain temperature conditions [hydrothermal pigments]
A sensor has also been developed that can be used as a sensor to determine the current temperature based on changes in color.
【発明が解決しようとする課題］
ところで、温度変化に対応して透明−不透明の変化を生
じさせるようにしたもの、即ち温度変化に追従して光の
透過率が変化する素材は未だ開発されてはいない。
例えば、ある一定の温度以上で作動する機器等において
、作動可能な温度状態にあるか否かを検出する手段を電
気的な手段によらずに構成する場合に、表示パネルを設
け、作動温度以下ではこの表示パネルを覆い隠し、作動
温度を越えたときには、この表示パネルが表れるように
すれば、都合が良い場合がある。
本発明者は以上の点に鑑みて、温度変化によって光の透
過率が変化する素材を開発すべく鋭意研究を行った。一
般に、熱可塑性樹脂は二次転移温度（ＴＴ）未満では不
透明で、この７７以上になると透明化するものが多い。
しかしながら、このような一般の樹脂では、７７以上で
は、流動状態乃至少なくとも表面が粘性状態となってし
まうことから、実際上は、この樹脂を７７以上で使用す
ることはできない。
そこで、本発明者は、不透明状態から透明状態に変化す
る温度となっても可塑化しない素材として、トランス−
１，４−ポリイソプレインを見出し、発明を完成するに
至った。ここで、トランス−１，４−ポリイソプレイン
は例えばゴルフボールの外皮、ギブススプリント、ホッ
トメルト接着剤、型取材料等として用いられている公知
のポリマーであり、イソプレインの陽イオン重合によっ
て得られる。天然ゴム系のシス−１，４−ポリイソプレ
インが典型的な弾性体を有するのと比較して、トランス
−１，４−ポリイソプレインは結晶性の熱可塑性樹脂の
性質を有するものである。
而して、本発明は所定の温度を境として透明−不透明の
変化を生じさせるようにした素材及びこの素材を利用し
た温度センサを提供することを目的とするものである。
【課題を解決するための手段】
前述した目的を達成するために、本発明の感温透明−不
透明変換組成物は、トランス−１，４−ポリイソプレイ
ンからなり、特定温度未満では不透明で、この特定濃度
以上で透明化するものであることを特徴とする。
また、本発明の温度センサは、トランス−１゜４−ポリ
イソプレインからなる感温透明化樹脂を用い、特定温度
を境として不透明状態と透明状態との間に変換すること
を利用して温度検出を行うように構成したことを特徴と
するものである。
Ｆ作用］
トランス−１，４−ポリイソプレインは、常温では不透
明な乳白色の色調を有し、それを加熱すると、６７℃で
無色透明の状態に変化する。しかも、この加熱によって
トランス−１，４−ポリイソプレインはある程度軟質化
するものの、２００℃程度まで昇温しても流動化１表面
粘着化が生じることはない。
ここで、トランス−１，４−ポリイソプレインは単独で
用いるのが好ましいが、これに可塑剤を添加すれば、Ｔ
Ｔを低下させることができ、この可塑剤の種類や量を調
整することによって透明−不透明の変換温度を変化させ
ることができる。また、１または複数種類の顔料を混合
することもでき、これによって、特定温度を越えたとき
には、有色透明の状態とすることができる。さらに、各
種の充填剤、熱安定剤、酸化防止剤、紫外線吸収剤、紫
外線安定剤等を混合すれば、劣化防止機能が発揮される
。
このトランス−１，４−ポリイソプレインからなる感温
透明−不透明変換組成物は、温度変化に対する応答の迅
速化等の点から、フィルム状乃至シート状に形成して用
いるのが好ましい。そこで、このポリマーをフィルム状
、シート状に形成するには、例えばトルエン等の溶剤に
よって溶解した後に、ガラス板に塗布して溶剤を蒸発さ
せることによって極めて簡単に得ることができる。また
、また、７０〜８０℃で混練押出機によって連続的に成
形することができる。また、圧縮成形による異型成形も
可能である。
このようにして得た感温透明−不透明変換組成物は、所
定の温度を境にして不透明状態と透明状態との間に変化
するものであるから、これを温度センサとして用いるこ
とができ、例えば各種の機器や容器等に貼着して、それ
が所定の温度となっったことを検出する感温素子として
用いることができる。また、冷媒と加熱手段とに接続し
、冷却、加熱を交互に行うことによって、部材の不透明
−透明間の変換を自由に制御することができる。而して
、用途に応じては、例えば透明のガラス、プラスチック
等の補強、支持板に貼着して用いることもできる。
［実施例１
以下、本発明の詳細な説明する。
実施例１
トランス−１，４−ポリイソプレイン１０ｇを、トルエ
ン３０ｇに溶解し、水平台上に置いた１０ｃ＋ａ四方の
フレームを有するガラス板に流し込み、常温で７日間放
置した後、１２０℃で５時間乾燥することによって、ガ
ラス板に付着した常温では白色で不透明な厚み約１ｍｍ
の感温透明−不透明変換フィルムを得た。このフィルム
をオーブン内に入れて加熱したところ、以下に示す結果
を得た。
６５℃加熱時二１時間経過した後も白色不透明の状態を
維持し変化を示さなかった
７０℃加熱時＝１８秒で無色透明化した７５℃加熱時＝
１５秒で無色透明化したこのフィルムを２００℃に加熱
したときにも表面に粘着性が認められず、また流動化も
示さなかった。
一方、８０℃に加熱することによって無色透明化したフ
ィルムを常温（約２３℃）に戻したところ、約３分で白
色の量りを生じ、約５分経過したときには、完全に白色
で不透明な状態となった。
実施例２
トランス−１，４−ポリイソプレイン１０ｇに可塑剤と
してプロセスオイルＰＩ−９０（出光石油化学制）を１
ｇ混合し、この混合物に溶剤としてのトルエンを３０ｇ
添加し、前述した実施例１と同様の方法で約１ｍｍの厚
みを有する感温透明−不透明変換フィルムを得た。この
フィルムをオーブン内で加熱したところ、６０℃に加熱
したが、白色不透明の状態を維持し変化を示さなかった
。そして、６５℃にまで加熱した時には、１６秒で無色
透明化した。
実施例３
紙、アルミ箔、プラスチックのラミネートからなる蓋体
を有する２ｍＩ！Ｉ厚のポリスチレン発泡体製の容器に
おける蓋体の表面に厚み４．５■■のトランス−１，４
−ポリイソプレイン単体からなる感温透明−不透明変換
フィルムを貼着した。そして、この容器内に熱湯を注入
して、蓋体によって施蓋したところ、約２分３０秒経過
した後にフィルムの透明化が開始し、約３分経過後に、
フィルムは完全に透明な状態となり、蓋体の表面に示さ
れてぃる印字が判読可能な状態となった。
［発明の効果１
以上説明したように、本発明は、特定の温度を境として
透明−不透明の変化を生じさせることができるようにな
り、温度センサとして用いることができることはもとよ
り、機能性窓２表示板、玩具等として広範な用途を有す
るものである。[Problem to be solved by the invention] By the way, a material that changes from transparent to opaque in response to temperature changes, that is, a material whose light transmittance changes in accordance with temperature changes, has not yet been developed. Not there. For example, when configuring a device that operates at a temperature above a certain temperature without using electrical means to detect whether or not the temperature is at a temperature that allows it to operate, a display panel is provided, It may be convenient to cover this display panel and make it appear when the operating temperature is exceeded. In view of the above points, the present inventor conducted extensive research to develop a material whose light transmittance changes with temperature changes. In general, thermoplastic resins are opaque below the secondary transition temperature (TT), and many become transparent when the temperature is 77 or higher. However, when such a general resin has a molecular weight of 77 or higher, the resin becomes fluid or at least has a viscous state on the surface, so in practice, this resin cannot be used at a molecular weight of 77 or higher. Therefore, the present inventor developed a material that does not plasticize even when the temperature changes from an opaque state to a transparent state.
They discovered 1,4-polyisoprene and completed the invention. Here, trans-1,4-polyisoprene is a well-known polymer used as, for example, golf ball shells, cast splints, hot melt adhesives, molding materials, etc., and is obtained by cationic polymerization of isoprene. . Compared to natural rubber-based cis-1,4-polyisoprene, which has a typical elastic body, trans-1,4-polyisoprene has the properties of a crystalline thermoplastic resin. . SUMMARY OF THE INVENTION An object of the present invention is to provide a material that changes from transparent to opaque at a predetermined temperature, and a temperature sensor using this material. Means for Solving the Problems In order to achieve the above-mentioned objects, the temperature-sensitive transparent-opaque conversion composition of the present invention is composed of trans-1,4-polyisoprene, which is opaque below a certain temperature, It is characterized in that it becomes transparent at a concentration above this specific concentration. In addition, the temperature sensor of the present invention uses a temperature-sensitive transparent resin made of trans-1°4-polyisoprene, and uses a temperature sensor that converts between an opaque state and a transparent state at a specific temperature. The device is characterized in that it is configured to perform detection. F Effect] Trans-1,4-polyisoprene has an opaque milky white color tone at room temperature, and when heated, it changes to a colorless and transparent state at 67°C. Furthermore, although the trans-1,4-polyisoprene is softened to some extent by this heating, fluidization and surface tackification do not occur even when the temperature is raised to about 200°C. Here, it is preferable to use trans-1,4-polyisoprene alone, but if a plasticizer is added to it, T
T can be lowered, and the transparent-opaque conversion temperature can be changed by adjusting the type and amount of this plasticizer. Furthermore, one or more kinds of pigments can be mixed, thereby making it possible to obtain a colored and transparent state when a certain temperature is exceeded. Furthermore, if various fillers, heat stabilizers, antioxidants, ultraviolet absorbers, ultraviolet stabilizers, etc. are mixed, the deterioration prevention function will be exhibited. The temperature-sensitive transparent-opaque conversion composition made of trans-1,4-polyisoprene is preferably used in the form of a film or sheet from the viewpoint of rapid response to temperature changes. Therefore, in order to form this polymer into a film or sheet, it can be very easily obtained by dissolving it in a solvent such as toluene, applying it to a glass plate, and evaporating the solvent. Moreover, it can also be continuously molded using a kneading extruder at 70 to 80°C. Further, irregular molding by compression molding is also possible. The temperature-sensitive transparent-opaque conversion composition thus obtained changes between an opaque state and a transparent state at a predetermined temperature, so it can be used as a temperature sensor, for example. It can be attached to various devices, containers, etc. and used as a temperature sensing element to detect when the temperature has reached a predetermined value. Further, by connecting the member to a refrigerant and a heating means and performing cooling and heating alternately, it is possible to freely control the conversion of the member between opaque and transparent states. Depending on the application, it can also be used, for example, by being attached to a reinforcing or supporting plate of transparent glass, plastic, or the like. [Example 1] Hereinafter, the present invention will be explained in detail. Example 1 10 g of trans-1,4-polyisoprene was dissolved in 30 g of toluene, poured into a glass plate having a 10c+a square frame placed on a horizontal stand, left at room temperature for 7 days, and then heated to 120°C for 5 By drying for a long time, it adheres to the glass plate and becomes white and opaque at room temperature with a thickness of about 1 mm.
A temperature-sensitive transparent-opaque conversion film was obtained. When this film was placed in an oven and heated, the following results were obtained. When heated at 65°C, it remained white and opaque and showed no change after 21 hours when heated at 70°C = When heated at 75°C, it became colorless and transparent in 18 seconds =
When this film, which became colorless and transparent in 15 seconds, was heated to 200° C., no tackiness was observed on the surface, and no fluidization was observed. On the other hand, when a film that had become colorless and transparent by heating to 80°C was returned to room temperature (approximately 23°C), it became white in about 3 minutes, and after about 5 minutes it became completely white and opaque. It became. Example 2 10 g of trans-1,4-polyisoprene was mixed with 1 part of process oil PI-90 (Idemitsu Petrochemical System) as a plasticizer.
g, and add 30 g of toluene as a solvent to this mixture.
A temperature-sensitive transparent-opaque conversion film having a thickness of about 1 mm was obtained in the same manner as in Example 1 described above. When this film was heated in an oven, it remained white and opaque and showed no change even though it was heated to 60°C. When heated to 65° C., it became colorless and transparent in 16 seconds. Example 3 2mI with a lid made of paper, aluminum foil, and plastic laminate! Trans-1,4 with a thickness of 4.5 on the surface of the lid of a container made of polystyrene foam with a thickness of I
- A temperature-sensitive transparent-opaque conversion film made of polyisoprene alone was attached. Then, when boiling water was poured into this container and the lid was closed, the film started to become transparent after about 2 minutes and 30 seconds, and after about 3 minutes,
The film became completely transparent, and the printing on the surface of the lid became readable. [Advantageous Effects of the Invention 1] As explained above, the present invention can change between transparency and opacity at a specific temperature, and can be used not only as a temperature sensor but also as a functional window 2. It has a wide range of uses such as display boards and toys.
Claims (4)
特定温度未満では不透明で、この特定温度以上で透明状
態に変化する感温透明−不透明変換組成物。(1) Consisting of trans-1,4-polyisoprene,
A temperature-sensitive transparent-to-opaque conversion composition that is opaque below a certain temperature and changes to a transparent state above this certain temperature.
状またはシート状に形成することにより構成され、特定
温度未満の温度では不透明で、この特定温度以上で透明
状態に変化する感温透明−不透明変換組成物。(2) Constructed by forming trans-1,4-polyisoprene into a film or sheet shape, which is opaque at a temperature below a certain temperature and changes to a transparent state at a temperature above this certain temperature-sensitive transparent - opaque Conversion composition.
明−不透明変化温度を調整するための可塑剤を混合して
なる請求項（１）または（２）記載の感温透明−不透明
変換組成物。(3) The temperature-sensitive transparent-opaque conversion composition according to claim (1) or (2), which is formed by mixing trans-1,4-polyisoprene with a plasticizer for adjusting its transparent-opaque change temperature. thing.
に変換するトランス−１，４−ポリイソプレインからな
る感温透明−不透明変換組成物を用いた温度センサ。(4) A temperature sensor using a temperature-sensitive transparent-opaque conversion composition made of trans-1,4-polyisoprene that converts between an opaque state and a transparent state at a specific temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22522090A JP2906614B2 (en) | 1990-08-29 | 1990-08-29 | Temperature-sensitive transparent-opaque conversion composition and temperature sensor using temperature-sensitive transparent-opaque conversion composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22522090A JP2906614B2 (en) | 1990-08-29 | 1990-08-29 | Temperature-sensitive transparent-opaque conversion composition and temperature sensor using temperature-sensitive transparent-opaque conversion composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04109133A true JPH04109133A (en) | 1992-04-10 |
| JP2906614B2 JP2906614B2 (en) | 1999-06-21 |
Family
ID=16825874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22522090A Expired - Lifetime JP2906614B2 (en) | 1990-08-29 | 1990-08-29 | Temperature-sensitive transparent-opaque conversion composition and temperature sensor using temperature-sensitive transparent-opaque conversion composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906614B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006503171A (en) * | 2002-10-11 | 2006-01-26 | ユニバーシティ オブ コネチカット | Cross-linked polycyclooctene |
| JP2006503172A (en) * | 2002-10-11 | 2006-01-26 | ユニバーシティ オブ コネチカット | Blends of amorphous and semi-crystalline polymers with shape memory properties |
| JP2007119634A (en) * | 2005-10-28 | 2007-05-17 | Idemitsu Kosan Co Ltd | Thermosensitive resin composition and its molding |
| US9115245B2 (en) | 2002-10-11 | 2015-08-25 | Boston Scientific Scimed, Inc. | Implantable medical devices |
-
1990
- 1990-08-29 JP JP22522090A patent/JP2906614B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006503171A (en) * | 2002-10-11 | 2006-01-26 | ユニバーシティ オブ コネチカット | Cross-linked polycyclooctene |
| JP2006503172A (en) * | 2002-10-11 | 2006-01-26 | ユニバーシティ オブ コネチカット | Blends of amorphous and semi-crystalline polymers with shape memory properties |
| US9115245B2 (en) | 2002-10-11 | 2015-08-25 | Boston Scientific Scimed, Inc. | Implantable medical devices |
| JP2007119634A (en) * | 2005-10-28 | 2007-05-17 | Idemitsu Kosan Co Ltd | Thermosensitive resin composition and its molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2906614B2 (en) | 1999-06-21 |
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