JPH1156995A - Flexible shape stable holding member - Google Patents
Flexible shape stable holding memberInfo
- Publication number
- JPH1156995A JPH1156995A JP9243564A JP24356497A JPH1156995A JP H1156995 A JPH1156995 A JP H1156995A JP 9243564 A JP9243564 A JP 9243564A JP 24356497 A JP24356497 A JP 24356497A JP H1156995 A JPH1156995 A JP H1156995A
- Authority
- JP
- Japan
- Prior art keywords
- polylactic acid
- stable holding
- plasticizer
- free
- weight
- 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
- 239000000463 material Substances 0.000 claims abstract description 59
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 26
- 239000004626 polylactic acid Substances 0.000 claims abstract description 26
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 229920003232 aliphatic polyester Polymers 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000013773 glyceryl triacetate Nutrition 0.000 claims abstract description 4
- 239000001087 glyceryl triacetate Substances 0.000 claims abstract description 4
- 229960002622 triacetin Drugs 0.000 claims abstract description 4
- 229920001610 polycaprolactone Polymers 0.000 claims description 12
- 239000004632 polycaprolactone Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 3
- 229910052602 gypsum Inorganic materials 0.000 abstract description 2
- 239000010440 gypsum Substances 0.000 abstract description 2
- 241000272476 Gyps Species 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自在形態安定保持材
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a free form stable holding material.
【０００２】[0002]
【従来の技術】一般に、自在形態安定保持材として、石
膏が用いられている。例えば、骨折等で一定期間固定を
必要とする場合は、患部に石膏を流して固めたギブスを
用いる。2. Description of the Related Art Generally, gypsum is used as a free form stable holding material. For example, when a fixed period of time is required due to a fracture or the like, a plaster cast by hardening plaster on the affected area is used.
【０００３】[0003]
【発明が解決しようとする課題】ギブスは、通気性が悪
く、また重くて非常に苦痛であり、長い間改良が望まれ
ていた。Casts are poorly breathable, heavy and very painful, and improvements have long been desired.
【０００４】本発明の課題は、通気性に富み、軽量で強
度が大であり、かつ自然に分解し得ると共に、使用方法
が簡単で自在に如何なる形状にも容易に対応できる自在
形態安定保持材を提供することにある。[0004] It is an object of the present invention to provide a free-form stable holding material which is rich in breathability, lightweight, has high strength, can be naturally decomposed, is easy to use, and can easily adapt to any shape. Is to provide.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の第１の手段は、繊維製の網状材料に脂肪族ポ
リエステル、ポリ乳酸等より成る生分解性材料を塗布し
て成ることを特徴とする。According to a first aspect of the present invention, there is provided a fiber net-like material coated with a biodegradable material such as an aliphatic polyester or polylactic acid. It is characterized by.
【０００６】上記課題を解決するための本発明の第２の
手段は、繊維製の網状材料に脂肪族ポリエステル、ポリ
乳酸等より成る生分解性材料と可塑剤の混合物を塗布し
て成ることを特徴とする。A second means of the present invention for solving the above-mentioned problem is that a mixture of a biodegradable material such as aliphatic polyester and polylactic acid and a plasticizer is applied to a fiber net material. Features.
【０００７】上記課題を解決するための本発明の第３の
手段は、上記第１及び第２の手段において、前記可塑剤
は、トリアセチン、ポリエチレングリコール等より成る
ことを特徴とする。A third means of the present invention for solving the above-mentioned problems is characterized in that, in the first and second means, the plasticizer comprises triacetin, polyethylene glycol or the like.
【０００８】上記課題を解決するための本発明の第４の
手段は、上記第１及び第２の手段において、前記生分解
性材料は、ポリカプルラプトンとポリ乳酸の混合物より
成り、ポリカプルラプトン５ｗｔ％にポリ乳酸９５ｗｔ
％〜ポリカプルラプトン９５ｗｔ％にポリ乳酸５ｗｔ％
の割合より成ることを特徴とする。[0008] A fourth means of the present invention for solving the above-mentioned problems is the above-mentioned first and second means, wherein the biodegradable material comprises a mixture of polycaprolactone and polylactic acid. Lactone 5wt% to polylactic acid 95wt
% To Polycaprolactone 95% by weight and polylactic acid 5% by weight
Characterized by the following ratio:
【０００９】上記課題を解決するための本発明の第５の
手段は、上記第２の手段において、前記生分解性材料
は、ポリカプルラプトンとポリ乳酸の混合物より成り、
ポリカプルラプトン５ｗｔ％にポリ乳酸９５ｗｔ％〜ポ
リカプルラプトン９５ｗｔ％にポリ乳酸５ｗｔ％の割合
より成り、この全体量に対し前記可塑剤を５〜８０部の
範囲で混入することを特徴とする。According to a fifth aspect of the present invention, there is provided a method as set forth in the second aspect, wherein the biodegradable material comprises a mixture of polycaprolactone and polylactic acid.
It is characterized by comprising a ratio of 95% by weight of polylactic acid to 5% by weight of polycaprolactone to 5% by weight of polylactic acid to 95% by weight of polycaprolactone, and mixing the plasticizer in a range of 5 to 80 parts with respect to the total amount. I do.
【００１０】[0010]
【発明の実施の形態】本発明の一実施の形態を図１及び
図２により説明する。自在形態安定保持材１は、繊維製
の網状材料２に脂肪族ポリエステル、ポリ乳酸等の生分
解性材料３を塗布したものである。この場合、生分解性
材料３が任意の軟化温度と強度を得るため、可塑剤を混
合して調節する。ここで、可塑剤としては、例えばトリ
アセチン、ポリエチレングリコール等を用いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The free form stable holding material 1 is obtained by applying a biodegradable material 3 such as an aliphatic polyester or polylactic acid to a net material 2 made of fiber. In this case, in order to obtain the desired softening temperature and strength of the biodegradable material 3, a plasticizer is mixed and adjusted. Here, as the plasticizer, for example, triacetin, polyethylene glycol, or the like is used.
【００１１】かかる自在形態安定保持材１は、生分解性
材料又は生分解性材料と可塑剤の混合物を７０〜１００
℃位の温度で加熱して熱溶融させるか、又はハロゲン化
合物、例えばトリクロエチレン、塩化メチレン、四塩化
炭素等で溶融させ、網状材料２に塗布して乾燥させるこ
とにより得られる。The free-form stable holding material 1 is made of a biodegradable material or a mixture of a biodegradable material and a plasticizer in an amount of 70 to 100.
It is obtained by heating at a temperature of about ° C. to melt by heat, or by melting with a halogen compound, for example, trichlorethylene, methylene chloride, carbon tetrachloride or the like, coating the reticulated material 2 and drying.
【００１２】この自在形態安定保持材１を使用する時
は、該自在形態安定保持材１を温湯又は温風等で軟化さ
せ、対象物に充分になじませるのみでよい。即ち、脂肪
族ポリエステル、特にポリカプルラプトンは、４５〜５
０℃位の温度で軟化し、３０℃以下になるまでその柔軟
性を維持するので、自在形態安定保持材１が３０〜４０
℃の温度の間に対象物に充分になじませると、該自在形
態安定保持材１が３０℃以下より順次硬化し、２５℃位
ではその材料自身の持つ硬度に達する。When using the free-form stable holding material 1, it is only necessary to soften the free-form stable holding material 1 with hot water or hot air, etc., so that the free-form stable holding material 1 sufficiently adapts to the object. That is, aliphatic polyesters, particularly polycaprolactone, are 45 to 5
It softens at a temperature of about 0 ° C. and maintains its flexibility until the temperature becomes 30 ° C. or less.
When the material is sufficiently blended into the object during the temperature of ° C., the free form stable holding material 1 is sequentially cured from 30 ° C. or less, and reaches the hardness of the material itself at about 25 ° C.
【００１３】生分解性材料３の硬度は、ポリカプルラプ
トン５ｗｔ％にポリ乳酸９５ｗｔ％〜ポリカプルラプト
ン９５ｗｔ％にポリ乳酸５ｗｔ％の割合で混入すること
により、任意の硬度を得ることが出来る。またこの全体
量に対して可塑剤を５〜８０部（４．８〜４４．４％）
の範囲で混入することにより、軟化温度と柔軟性の調節
が可能である。The hardness of the biodegradable material 3 can be arbitrarily obtained by mixing 95% by weight of polylactic acid in 5% by weight of polycaprolactone to 5% by weight of polylactic acid in 95% by weight of polycaprolactone. I can do it. In addition, 5 to 80 parts (4.8 to 44.4%) of a plasticizer is added to the total amount.
The softening temperature and the flexibility can be adjusted by mixing in the range.
【００１４】次に具体的な使用法の一例について説明す
る。例えばギブスの代わりに使用する場合は、自在形態
安定保持材１を任意の大きさに切断し、該自在形態安定
保持材１を温湯又は温風で温め、自在な形状にできるよ
うに軟化させる。そして、自在形態安定保持材１を患部
に当て、該自在形態安定保持材１が３０℃以下になって
硬化するまで固定する。硬化後は、再び４５℃以上の温
度に加熱するまでその形態を保持する。また患部より自
在形態安定保持材１を取り外す場合は、該自在形態安定
保持材１を加熱して軟化させることにより、容易に取り
外すことができる。なお、生分解性材料３の最大軟化点
は７０℃位で、最小軟化点は４５℃位が好ましい。Next, an example of a specific usage will be described. For example, when it is used in place of a cast, the free-form stable holding material 1 is cut into an arbitrary size, and the free-form stable holding material 1 is warmed with hot water or hot air to be softened so as to be able to have a free shape. Then, the free form stable holding material 1 is applied to the affected part and fixed until the free form stable holding material 1 becomes 30 ° C. or less and hardens. After curing, the form is maintained until it is heated again to a temperature of 45 ° C. or higher. In addition, when the free form stable holding material 1 is removed from the affected part, the free form stable holding material 1 can be easily removed by heating and softening the free form stable holding material 1. The maximum softening point of the biodegradable material 3 is preferably about 70 ° C., and the minimum softening point is preferably about 45 ° C.
【００１５】このように、網状材料２に生分解性材料３
を塗布したものであるので、通気性に富み、形態が安定
し、軽量で強度が大である。また４５℃以上で軟化する
ので、その温度で対象物に取付け、又は対象物より取り
外すことができ、その使用方法が容易で簡単である。更
に生分解性材料３であるので、使用済の材料は地中に埋
めることにより自然に分解し、公害の問題も生じない。As described above, the biodegradable material 3
Is applied, so that it is rich in air permeability, stable in form, lightweight, and strong. Also, since it is softened at 45 ° C. or more, it can be attached to or detached from an object at that temperature, and its usage is easy and simple. Further, since it is the biodegradable material 3, the used material is naturally decomposed by burying it in the ground, and there is no problem of pollution.
【００１６】[0016]
【発明の効果】本発明によれば、繊維製の網状材料に脂
肪族ポリエステル、ポリ乳酸等より成る生分解性材料を
塗布して成るので、通気性に富み、軽量で強度が大であ
り、かつ自然に分解し得ると共に、使用方法が簡単で自
在に如何なる形状にも容易に対応できる。According to the present invention, since a biodegradable material such as aliphatic polyester or polylactic acid is applied to a fiber net-like material, it is rich in air permeability, lightweight, and strong. In addition to being able to be naturally disassembled, the method of use is simple and can be easily adapted to any shape.
【図１】本発明の自在形態安定保持材の一実施の形態を
示す断面平面図である。FIG. 1 is a sectional plan view showing an embodiment of a free-form stable holding material of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
１ 自在形態安定保持材 ２ 網状材料 ３ 生分解性材料 1 Free form stable holding material 2 Reticulated material 3 Biodegradable material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｃ０８Ｊ 5/04 ＣＦＤ Ｃ０８Ｊ 5/04 ＣＦＤ ＺＡＢ ＺＡＢ ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 6 Identification symbol FI // C08J 5/04 CFD C08J 5/04 CFD ZAB ZAB
Claims (5)
ル、ポリ乳酸等より成る生分解性材料を塗布して成るこ
とを特徴とする自在形態安定保持材。1. A free form stabilizing material characterized by applying a biodegradable material made of aliphatic polyester, polylactic acid or the like to a fiber net material.
ル、ポリ乳酸等より成る生分解性材料と可塑剤の混合物
を塗布して成ることを特徴とする自在形態安定保持材。2. A free-form stable holding material characterized by applying a mixture of a biodegradable material made of aliphatic polyester, polylactic acid and the like and a plasticizer to a fiber net material.
レングリコール等より成ることを特徴とする請求項１又
は２記載の自在形態安定保持材。3. The free-form stable holding material according to claim 1, wherein the plasticizer is made of triacetin, polyethylene glycol, or the like.
ンとポリ乳酸の混合物より成り、ポリカプルラプトン５
ｗｔ％にポリ乳酸９５ｗｔ％〜ポリカプルラプトン９５
ｗｔ％にポリ乳酸５ｗｔ％の割合より成ることを特徴と
する請求項１又は２記載の自在形態安定保持材。4. The biodegradable material comprises a mixture of polycaprolactone and polylactic acid.
95% by weight of polylactic acid to 95% by weight of polycaprolactone
The free-form stable holding material according to claim 1 or 2, wherein the weight ratio of the polylactic acid is 5 wt%.
ンとポリ乳酸の混合物より成り、ポリカプルラプトン５
ｗｔ％にポリ乳酸９５ｗｔ％〜ポリカプルラプトン９５
ｗｔ％にポリ乳酸５ｗｔ％の割合より成り、この全体量
に対し前記可塑剤を５〜８０部の範囲で混入することを
特徴とする請求項２記載の自在形態安定保持材。5. The biodegradable material is composed of a mixture of polycaprolactone and polylactic acid.
95% by weight of polylactic acid to 95% by weight of polycaprolactone
3. The free-form stabilizing material according to claim 2, wherein the plasticizer is mixed in an amount of 5 to 80 parts by weight with respect to the total amount of the plasticizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9243564A JPH1156995A (en) | 1997-08-26 | 1997-08-26 | Flexible shape stable holding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9243564A JPH1156995A (en) | 1997-08-26 | 1997-08-26 | Flexible shape stable holding member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1156995A true JPH1156995A (en) | 1999-03-02 |
Family
ID=17105725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9243564A Pending JPH1156995A (en) | 1997-08-26 | 1997-08-26 | Flexible shape stable holding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1156995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9241512B2 (en) | 2011-06-23 | 2016-01-26 | British American Tobacco (Investments) Limited | Filter material comprising polylactide fibres |
-
1997
- 1997-08-26 JP JP9243564A patent/JPH1156995A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9241512B2 (en) | 2011-06-23 | 2016-01-26 | British American Tobacco (Investments) Limited | Filter material comprising polylactide fibres |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69433693D1 (en) | ARTIFICIAL STONE COMPOSITION AND METHOD FOR PRODUCING ARTIFICIAL STONES | |
| ATE112675T1 (en) | GRANULAR PREPARATIONS AND PROCESSES FOR THEIR MANUFACTURE. | |
| EE200000039A (en) | Use of MHC Class II Ligand, Pharmaceutical Composition, Transfected Tumor Cells, Method of Preparing Transfected Cells and Tumor Cells, and Their Use | |
| DE69120798D1 (en) | METHOD FOR PRODUCING A GEOPOLYMER BINDING AGENT SUITABLE FOR THE STABILIZATION, PRODUCTION AND CONSOLIDATION OF WASTE MATERIALS OR TOXIC MATERIALS | |
| DE60008157D1 (en) | Process for the preparation of curable compositions and compositions therefrom | |
| DE69433340D1 (en) | BIODEGRADABLE COPOLYESTER, MOLDED PART MADE THEREOF AND METHOD FOR PRODUCING THE MOLDED PART | |
| DE69914849D1 (en) | Polymer compositions and methods for soil release promotion of fabrics using these polymer compositions | |
| DE68918142D1 (en) | Controlled fragrance release compositions and methods. | |
| DE58906718D1 (en) | ARTIFICIAL STONES, METHOD FOR THE PRODUCTION AND USE THEREOF. | |
| DE69906389D1 (en) | PROCESS FOR THE PREPARATION OF CITALOPRAM | |
| DE69021776D1 (en) | Compositions and methods of making ceramic matrix composites. | |
| DE60124260D1 (en) | HARDENABLE, RAISE RAILS AND METHOD FOR THEIR MANUFACTURE | |
| JP2578684B2 (en) | Method for producing an implant with a metal open cell structure | |
| ATE239767T1 (en) | COMPOSITION, DEVICE AND METHOD OF USE | |
| JPH1156995A (en) | Flexible shape stable holding member | |
| DE3751551D1 (en) | Lithographic process using lasers to manufacture electronic elements and the like. | |
| DE69819140D1 (en) | FLUORINE RESIN FILM, COMPOSITE MATERIAL USING THIS AND METHOD FOR PRODUCING COMPOSITE MATERIALS | |
| DE60126211D1 (en) | CEMENT LINKERS, CEMENT COMPOSITION, METHOD FOR THE PRODUCTION OF CEMENT LINKERS AND METHOD FOR THE TREATMENT OF ALKALINE-CONTAINING WASTE | |
| ATE221394T1 (en) | MEDICAL CEMENT, PROCESS FOR ITS PRODUCTION AND USE THEREOF | |
| DE68922305D1 (en) | MODIFIED SILICATE COMPOSITION AND METHOD FOR PRODUCING SAND MOLD THEREOF. | |
| ATE117974T1 (en) | SOIL ADDITIVE BALL FOR SUPPLYING PLANTS WITH NITROGEN AND METHOD FOR PRODUCING IT. | |
| DE59800916D1 (en) | Process for the preparation of organosiloxane compositions with (methyl) styrene groups by curing with UV radiation | |
| DE50108621D1 (en) | Process for the preparation of a thermoplastic filling material | |
| DE69935355D1 (en) | Process for the preparation of citalopram | |
| DE69206192D1 (en) | Composition for the production of carbon composite material, carbon composite material thus obtained and process for the production thereof. |