JPH0534343A - Test implement - Google Patents

Test implement

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Publication number
JPH0534343A
JPH0534343A JP18874891A JP18874891A JPH0534343A JP H0534343 A JPH0534343 A JP H0534343A JP 18874891 A JP18874891 A JP 18874891A JP 18874891 A JP18874891 A JP 18874891A JP H0534343 A JPH0534343 A JP H0534343A
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Prior art keywords
poly
test device
hydroxyalkanoate
support
test
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JP18874891A
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Japanese (ja)
Inventor
Kenji Ishikawa
建次 石川
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Terumo Corp
テルモ株式会社
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Abstract

PURPOSE:To obtain a test implement for blood or urine which is easy to dispose of. CONSTITUTION:A substrate 2 of a test implement 1 is constructed of a base of which the main component is biodegradable resin constituted of poly(hydroxyalkanoate), while a reagent layer 3 is constructed of nonwoven fabric of which the main component is the biodegradable resin constituted of the poly(hydroxyalkanoate). According to this constitution, the implement is decomposed even whe it is disposed of a flush toilet or the like after completion of inspection, and therefor a sanitary disposal thereof can be effected.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、ヒトの健康状態をチェックするための血液や尿の試験具に関する。 The present invention relates to relates to a test device of the blood and urine to check the health status of the person.

【0002】 [0002]

【従来の技術】従来の試験具は図1に示すように、手で持つことのできる支持体2はポリスチレンやポリエチレンテレフタレート等の合成樹脂などで短冊状に作られ、 Conventional test device as shown in FIG. 1, the support 2 which can be held in the hand is made into strips such as a synthetic resin such as polystyrene or polyethylene terephthalate,
検体中の成分の測定のため試薬を担持して試薬層3とし、支持体2に試薬層3を接着剤層4にて接着していた。 The reagents for the determination of sample component carries a reagent layer 3, the reagent layer 3 was adhered with an adhesive layer 4 to the support 2. そしてそれらは検体中の成分の測定が終了すると、 And when they are finished the measurement of components in a sample,
一般のプラスチックゴミや一般家庭ゴミと同じ様に処理され、埋め立てや焼却処分されていた。 It is processed in the same manner as general plastic waste and general household waste, have been landfill or incinerated.

【0003】また、最近、水溶紙に水溶性樹脂をコートした水溶性の支持体を用いることにより、試験終了後、 [0003] Recently, by using a water-soluble support coated with a water-soluble resin to a water feeding, after the completion of the test,
水洗トイレに、廃棄できるものが、開発されている。 To flush toilets, what can be discarded, it has been developed.

【0004】ヒトの血液や尿などの検体に触れた試験具が一般のゴミと混ざって処分されることは不衛生であり、また健常人ではない病人からの検体(血液や尿)の場合には病気の感染のおそれすらある。 [0004] that the test tool touching the specimen, such as human blood and urine is disposed of mixed with general waste is unsanitary, also in the case of a specimen (blood and urine) from the sick person is not a healthy person is even a risk of infection of the disease. このため、成分の測定が終了したら、直ちにこの試験具を衛生的に処分することが望まれていた。 Thus, when finished the measurement of the components, it was it is desired to immediately dispose of this test device hygienic.

【0005】また、水溶性の支持体を用いた試験具は、 Further, the test device using a water-soluble support,
その強度を試験中に維持させておくのが難しく、強度を上げると溶けにくくなり、また、溶け易くすると強度が不足し、試験中に折れ曲がったりすることがあり、ほどよい強度や溶け易さを調整するのは、非常に難しかった。 It is difficult allowed to maintain its strength during the test, it becomes difficult to melt and increase the strength, also when more soluble strength is insufficient, it may be bent or during the test, a reasonable strength and melt ease to adjustment, it was very difficult.

【0006】 [0006]

【発明が解決しようとしている課題】本発明の目的は、 The present invention is trying to solve is an object of the present invention,
この様に衛生的な処分を可能とする試験具を提供することにある。 It is to provide a test device to enable hygienic disposal in this manner.

【0007】 [0007]

【課題を解決するための手段】このような目的は次の構成により達成される。 Means for Solving the Problems] Such object is achieved by the following configuration.

【0008】支持体と該支持体の一部分に試薬層を有する試験具において、該支持体は、ポリ(ヒドロキシアルカノエート)を主成分とする基材から構成されることによって達成される。 [0008] In the test device having a reagent layer on a portion of the support and the support, the support is achieved by being configured poly (hydroxyalkanoate) from a substrate as a main component.

【0009】さらに、前記試薬層はポリ(ヒドロキシアルカノエート)を主成分とする不織布に試薬を担持させたものであることが好ましい。 Furthermore, the reagent layer is preferably one obtained by supporting the reagent nonwoven fabric mainly composed of poly (hydroxyalkanoate).

【0010】支持体と該支持体の一端に試薬層を有する試験具において、該支持体は、ポリ(ヒドロキシアルカノエート)を主成分とする基材から構成されることにより、機械的強度が十分あり、また、試験後水洗トイレなどに容易に廃棄できる。 [0010] In the test device having a reagent layer on one end of the support and the support, the support, by being configured poly (hydroxyalkanoate) from the substrate mainly, mechanical strength sufficient There is, also, can be easily disposed of, such as the test after a flush toilet.

【0011】さらに、前記試薬層はポリ(ヒドロキシアルカノエート)を主成分とする不織布に試薬を担持させたものにすることにより、ほとんど固形物を残すことなく、分解してしまうことができる。 Furthermore, the reagent layer by the one obtained by carrying reagent nonwoven fabric mainly composed of poly (hydroxyalkanoate), without leaving a little solid, can result in decomposition.

【0012】本発明に適用されるポリ(ヒドロキシアルカノエート)はヒドロキシアルカノエート繰り返し単位として炭素数2〜12程度のものが例示され、具体的にはポリ(2−ヒドロキシアセテート)、ポリ(2−ヒドロキシプロピオネート)等のポリ(2−ヒドロキシアルカノエート)類、ポリ(3−ヒドロキシプロピオネート)、ポリ(3−ヒドロキシブチレート)、ポリ(3− [0012] Poly applied to the present invention (hydroxyalkanoate) is exemplified of about 2 to 12 carbon atoms as a repeating unit hydroxyalkanoate, specifically poly (2-hydroxy acetate), poly (2- poly (2-hydroxy alkanoates) such hydroxypropionate) or the like, poly (3-hydroxypropionate), poly (3-hydroxybutyrate), poly (3-
ヒドロキシバリレート)、ポリ(3−ヒドロキシオクタノエート)等のポリ(3−ヒドロキシアルカノエート) Hydroxyvalerate), poly (3-hydroxy octanoate) like poly (3-hydroxyalkanoate)
類、ポリ(4−ヒドロキシブチレート)、ポリ(4-バリレート)等のポリ(4−ヒドロキシアルカノエート) S, poly (4-hydroxybutyrate), poly (4-Barireto) like poly (4-hydroxyalkanoate)
類等が好適に用いられる。 S and the like are suitably used.

【0013】本発明においては、ポリヒドロキシアルカノエートは単一なホモポリマーである必要はなく、これらの共重合体であってもよい。 In the present invention, polyhydroxyalkanoate need not be a single homopolymer, or may be a copolymer thereof.

【0014】これらの共重合体の具体例としては、2− [0014] Specific examples of these copolymers, 2-
ヒドロキシアセテート・2−ヒドロキシプロピオネート共重合体、3−ヒドロキシプロピオネート・3−ヒドロキシブチレート共重合体、3−ヒドロキシブチレート・ Hydroxy acetate 2-hydroxy propionate copolymer, 3-hydroxypropionate, 3-hydroxybutyrate copolymer, 3-hydroxybutyrate,
3−ヒドロキシバリレート共重合体、3−ヒドロキシブチレート・4−ヒドロキシブチレート共重合体、3−ヒドロキシブチレート・4−ヒドロキシバリレート共重合体、3−ヒドロキシブチレート・3−ヒドロキシオクタノエート共重合体、3−ヒドロキシブチレート・3−ヒドロキシプロピオネート・3−ヒドロキシバリレート共重合体、3−ヒドロキシブチレート・3−ヒドロキシバリレート・4−ヒドロキシブチレート共重合体等が好適に例示されるが、本発明ではそれらに限定されるものではない。 3-hydroxyvalerate copolymer, 3-hydroxybutyrate, 4-hydroxybutyrate copolymer, 3-hydroxybutyrate, 4-hydroxyvalerate copolymer, 3-hydroxybutyrate, 3-hydroxy octanoate benzoate copolymer, 3-hydroxybutyrate, 3-hydroxypropionate, 3-hydroxyvalerate copolymer, 3-hydroxybutyrate, 3-hydroxyvalerate, 4-hydroxybutyrate copolymer and the preferred Although it illustrated in, but not limited thereto in the present invention.

【0015】さらに本発明では、上記のポリ(ヒドロキシアルカノエート)類やそれらの共重合体の混合物、あるいはポリ(ヒドロキシアルカノエート)類とそれらの共重合体の混合物であってもよい。 [0015] Further, in the present invention, it may be a mixture of the poly (hydroxyalkanoate) s or mixtures thereof in the copolymer, or poly (hydroxyalkanoate) s and copolymers thereof.

【0016】本発明のポリヒドロキシアルカノエートが主成分とする基材のポリヒドロキシアルカノエート成分の含率は50wt%以上が好ましい。 [0016] content: polyhydroxyalkanoate component substrates polyhydroxyalkanoate composed mainly of the present invention is preferably at least 50 wt%. 水溶性のポリマーと組み合わせることは効果的ではあるが、ポリヒドロキシアルカノエート成分の含率が50wt%以下では浄化槽内の活性汚泥中での分解が不十分となる可能性があるため、ポリヒドロキシアルカノエート成分の含率は50wt While combining a water-soluble polymer is effective, since the content: the polyhydroxyalkanoate component is likely to decompose becomes insufficient in a 50wt% or less in the activated sludge in the septic tank, polyhydroxyalkanoates content: the benzoate component is 50wt
%以上が好ましい。 % Or more is preferable. また、本発明の基材が浄化漕に至る前に形態的の崩壊するように上述の水溶性ポリマーや水溶性物質を混合することも可能である。 It is also possible to base the present invention is to mix the above-mentioned water-soluble polymer or a water-soluble substance to disintegrate the morphological before reaching the purification bath.

【0017】本発明のポリヒドロキシアルカノエートの作り方は、微生物を用いた発酵合成から得る方法でも、 [0017] How to make polyhydroxyalkanoate of the present invention, also a method of obtaining from the fermentation synthesized using microorganisms,
化学合成から得る方法でもよい。 Or a method of obtaining from a chemical synthesis. 前者の方法としては特願平2−076585、特開昭57−150393、ジャーナル オブ ジェネラルマイクロバイオロジー(J.General.Microbiology), Former as methods Hei 2-076585, JP-57-150393, Journal of General Microbiology (J.General.Microbiology),
115 ,185〜192(1979)、ジャーナル オブ ザ ソサエティー,ケミカル コミニケーションズ(J.Chm.Soc.,Chem.Commun.) 115, 185-192 (1979), Journal of the Society, Chemical Kominikeshon's (J.Chm.Soc., Chem.Commun.)
1635〜1636(1987)、ポリマー コミニケーションズ(Polymer Commun.) 30 1635-1636 (1987), polymer Kominikeshon's (Polymer Commun.) 30,
169〜171(1989)、アプライドマイクロバイオロジー アンドバイオテクノロジー(Appl.Mi 169-171 (1989), Applied Microbiology and Biotechnology (Appl.Mi
crobiol. crobiol. Biotech. Biotech. 30 ,569〜5 ) 30, 569-5
73(1989)などに記載された方法があるが、もちろんこれ以外の培養条件、菌株を用いても構わない。 There is the method described, for example, in 73 (1989), but of course other culture conditions, may be used strains. また後者の方法としては、β−ブチロラクトンやγ−バレロラクトンなどの開環重合する方法、3−ヒドロキシ酪酸やその誘導体、4−ヒドロキシ吉草酸やその誘導体などを重縮合する方法などがあり、その一例として高分子学会予稿集(Polymer Preprints,J As the latter method, a method of ring-opening polymerization, such as β- butyrolactone and γ- valerolactone, 3-hydroxybutyric acid and its derivatives, there is a method of polycondensation of such as 4-hydroxyvaleric acid and its derivatives, its the Society of polymer Science, Proceedings as an example (polymer Preprints, J
apan) 39 ,NO. apan) 39, NO. 7,2265〜2267(19 7,2265~2267 (19
90)がある。 There are 90).

【0018】本発明の試験具の支持体に成形するには、 [0018] In order to form the support of the test device of the present invention,
ポリヒドロキシアルカノエートを主成分とする材料を射出成形、押出し成形、熱プレスなどの熱成形によってシート化し、作ることができる。 Injection molding the material mainly composed of polyhydroxyalkanoate, extruded, sheeted by thermoforming such as hot pressing can be made. また、ポリヒドロキシアルカノエートの溶剤、例えばクロロホルム、ジクロロメタン、ジオキサンなどを用いて溶媒キャスト法にてシート化することができる。 Further, the solvent of polyhydroxyalkanoates, such as chloroform, dichloromethane, can be sheeted by a solvent casting method using dioxane. これらのシートを必要な大きさにカットして試験具の支持体とすることができる。 These sheets can be a support for cut to size required test device.

【0019】本発明の試験具の支持体上に接着する試薬層はポリヒドロキシアルカノエートを主成分とする不織布からなり、ポリヒドロキシアルカノエートを主成分とする材料を溶融押出し成形し、また必要に応じて延伸処理をした糸を不規則にまとめることにより得られる。 The reagent layer adhering on the support of the test device The present invention is made of nonwoven fabric mainly composed of polyhydroxyalkanoate, a material mainly composed of polyhydroxyalkanoate melt extrusion, also needs depending obtained by irregularly summarized yarn was stretched with. これらは、水溶性の薬品を載せやすくするため、不織布表面をアルコール処理したり、プラズマ処理することも可能である。 These are for easy carrying the chemicals soluble, or alcohol treatment the nonwoven surface can also be a plasma treatment. また、糸状に押出し成形する前に親水性物質、例えばグリセロールトリアテレートなどを混合しておくことも効果的である。 It is also effective to have hydrophilic materials such as glycerol thoria Te rate and mixed prior to extrusion into filaments.

【0020】本発明の試験具支持体と試薬層を接着するには得に何の制限もなく通常の接着剤を用いて良い。 [0020] To adhere the test device support and the reagent layer of the present invention may be used conventional adhesives without restriction to the obtained.

【0021】本発明の試験具に用いることのできる検査項目は特に何の制限もなく、通常測定される項目が適用出来る。 The test items that can be used in the test device of the present invention is particularly without restriction, applicable items that are usually measured. 例えば、血液試験具ではpH、ブドウ糖など、 Eg, pH in the blood test tool, glucose etc.
尿試験具では、pH、ブドウ糖、蛋白質、ウロビリノーゲン、ケトン体、ビリルビン、潜血、亜硝酸塩などの項目が適用できる。 The urine test device can be applied pH, glucose, protein, urobilinogen, ketone body, bilirubin, occult blood, items such as nitrite. また、妊娠の判定する項目にも適用可能である。 Further, it is also applicable to determining the item of pregnancy.

【0022】 [0022]

【実施例】以下、本発明の実施例を図面を参照して具体的に説明する。 EXAMPLES Hereinafter, the embodiments of the present invention with reference to the drawings will be described in detail.

【0023】[実施例1]3−ヒドロキシブチレート・3 [0023] [Example 1] 3-hydroxybutyrate-3
−ヒドロキシバリレート共重合体(3−ヒドロキシ吉草酸含率17モル%、Aldrich社より購入)を成形温度170℃にてTダイより押出し成形して厚み0.5 - hydroxyvalerate copolymers (3-hydroxy valeric acid content 17 mol%, purchased from Aldrich Co.) thickness was extruded from a T-die at a molding temperature of 170 ° C. 0.5
mmのシートとし、70×7mmの長方形にカットして支持体とした。 And mm sheet was a support was cut into rectangles of 70 × 7 mm.

【0024】また、同じ材料を用い、ダイの内径0.3 [0024] In addition, using the same material, the inner diameter of the die 0.3
mmから押出し、延伸操作は行わず自重のみにより延伸された糸を得た。 Extruded from mm, stretching operations to obtain a yarn which has been stretched by the weight only without. その糸の外径は約0.1〜0.3mm The outer diameter of the thread is about 0.1~0.3mm
であった。 Met. これを集めて、圧縮するとことにより不織布とし、試薬層を形成した。 Collect this, a non-woven fabric by Compressing and to form a reagent layer. この基材と不織布を少量のエポキシ系接着剤(チバガイギ社製アラルダイト)で接着した。 And bonded with the substrate and the nonwoven fabric of a small amount of epoxy adhesive (Ciba-Geigy Corp. Araldite). そして不織布部分をエチルアルコール(試薬特級)で処理したのち、pH測定用の浸漬液に約10秒漬浸して尿試験具を作成した。 Then after processing the nonwoven portion with ethyl alcohol (special grade reagent) to prepare a urine test device with 漬浸 about 10 seconds immersion solution for pH measurement.

【0025】なお、pH測定用浸漬液はメチルレッド(東京化成工業社製特級)20mg/dlエタノール溶液17.6mlと、ブロムチモールブルー(和光純薬社製特級)200mg/dlエタノール溶液25mlと、 [0025] In addition, pH measurement for the immersion liquid and methyl red (manufactured by Tokyo Kasei Kogyo Co., Ltd. special grade) 20mg / dl ethanol solution 17.6ml, bromothymol blue (Wako Pure Chemical Industries, Ltd. special grade) and 200mg / dl ethanol solution 25ml,
ポリビニリピロリドン(東京化成工業社製K−30)1 Poly vinyl re-pyrrolidone (manufactured by Tokyo Kasei Kogyo Co., Ltd. K-30) 1
2g/dlエタノール溶液50mlを混合し、さらに全量を100mlになる様にエタノールを加えて作製した。 Were mixed 2 g / dl ethanol solution 50 ml, it was prepared further by adding ethanol so as to become a total volume of 100 ml. この尿試験具を用いて健常人の尿のPHを測定したところ、通常通り使用でき、また、市販品(テルモ社製尿試験紙ウリエース)の測定結果と一致した。 The urine test device used was to measure the PH of healthy individuals of urine, can be used as usual, it was also consistent with the measurement results of the commercially available products (produced by Terumo Corporation urine test paper Uriesu). 測定終了後、神奈川県伊勢原市の下水最終処理場から採取した活性汚泥を好気的培養している坂口フラスコに使用後の尿試験紙を入れ、1カ月後に観察したところ、活性汚濁中の微生物に資化されたために基材および不織布部分は残っていなかった。 After the measurement, put the Isehara, Kanagawa Prefecture urine test paper after use to Sakaguchi flask that aerobic culture the activated sludge collected from a sewage final treatment plant, was observed after one month, the microorganisms in the active pollution the substrate and nonwoven portion was left to have been assimilated. このため、通常の水洗トイレに本発明の尿試験紙を廃棄しても、浄化槽内の活性汚泥によって完全に分解され、問題ないものといえる。 Therefore, even if discarded dipstick of the present invention to a normal flush toilet, completely degraded by the activated sludge in the septic tank, it can be said that no problem.

【0026】[実施例2]基材と試薬層の成形材料にポリ3−ヒドロキシブチレート(Aldrich社より購入)にグリセロールトリアセテート(東京化成工業社製)を20wt%混合したものを用いた以外実施例1と同様にしてpH測定用の尿試験具を作成した。 The embodiment except that the Example 2 (purchased from Aldrich Company) substrate and the molding material in the poly 3-hydroxybutyrate reagent layers glycerol triacetate (manufactured by Tokyo Kasei Kogyo Co., Ltd.) was a mixture 20 wt% example created a urine test device for pH measurement in the same manner as in 1. 健常人の尿のpH測定は市販品と同じ結果を示した。 pH measurement of a healthy person of the urine showed the same results as a commercial product. また、活性汚泥中での分解も1カ月後には完全に起きていた。 In addition, it was completely awake after than a month degradation in the activated sludge in.

【0027】[比較例1]ポリヒドロキシアルカノエートを用いずに作製されている市販品(テルモ社製尿試験紙ウリエース)を前述の活性汚泥中に入れたところ1カ月後にも原形をそのまま確認することができた。 [0027] [Comparative Example 1] as it is to make sure the original form also polyhydroxyalkanoates commercial products that have been produced without the use of a benzoate the (Terumo Corp. urine test paper Uriesu) after one month was placed in the above-mentioned activated sludge it could be.

【0028】 [0028]

【発明の効果】以上、詳述したように本発明の試験具は、ポリヒドロキシアルカノエートを主成分とする生分解性の基材から構成されているので、測定終了後に本発明の試験具をトイレや排水溝に廃棄しても、下水処理工程中の活性汚濁で微生物によって完全に分解、資化されるため、下水系に悪影響を与えない。 Effect of the Invention above, the test device of the present invention as described in detail, because it is composed of a biodegradable substrate mainly containing polyhydroxyalkanoate, the test device of the present invention after completion of the measurement be discarded into the toilet or drains, completely degraded by microorganisms in the active pollution in sewage treatment process, to be assimilated, it does not adversely affect the sewage system. このため、下水系に悪影響を与えずに試験具を簡単に処理できるという効果がある。 Therefore, there is an advantage that can easily handle the test device without adversely affecting the sewage system. また、試験具に付着している検体尿や血液による感染なども防止することができるという効果がある。 Further, there is an effect that it is possible to prevent well as infection by the sample urine or blood adhering to the test device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 図1は本発明の試験具を示す斜視図である。 FIG. 1 is a perspective view showing a test device of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1…尿試験具 2…基材 3…試薬層 4…接着層 1 ... urine test device 2 ... substrate 3 ... reagent layer 4 ... adhesive layer

Claims (1)

  1. 【特許請求の範囲】 【請求項1】支持体と該支持体の一部分に試薬層を有する試験具において、該支持体は、ポリ(ヒドロキシアルカノエート)を主成分とする基材から構成されることを特徴とする試験具。 In test device having a reagent layer on a portion of the Claims 1] support and the support, the support is configured poly (hydroxyalkanoate) from a substrate consisting mainly test device, characterized in that. 【請求項2】前記試薬層はポリ(ヒドロキシアルカノエート)を主成分とする不織布に試薬を担持させたものであることを特徴とする請求項(1)に記載の試験具。 2. A test device according to the reagent layer is poly claims, characterized in that is obtained by carrying reagent nonwoven fabric mainly composed of (hydroxyalkanoate) (1).
JP18874891A 1991-07-29 1991-07-29 Test implement Pending JPH0534343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18874891A JPH0534343A (en) 1991-07-29 1991-07-29 Test implement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18874891A JPH0534343A (en) 1991-07-29 1991-07-29 Test implement

Publications (1)

Publication Number Publication Date
JPH0534343A true true JPH0534343A (en) 1993-02-09

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JP18874891A Pending JPH0534343A (en) 1991-07-29 1991-07-29 Test implement

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Cited By (9)

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US5489470A (en) * 1994-01-28 1996-02-06 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers
US5498692A (en) * 1994-01-28 1996-03-12 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers
US5502116A (en) * 1994-01-28 1996-03-26 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers of 3-hydroxyhexanoate
US5990271A (en) * 1994-01-28 1999-11-23 The Procter & Gamble Company Films and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate comonomer units
US6077931A (en) * 1998-12-21 2000-06-20 The Procter & Gamble Company Biodegradable PHA copolymers
US6143947A (en) * 1996-01-29 2000-11-07 The Procter & Gamble Company Fibers, nonwoven fabrics and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate
US6160199A (en) * 1998-12-21 2000-12-12 The Procter & Gamble Company Absorbent articles comprising biodegradable PHA copolymers
US6174990B1 (en) 1998-12-21 2001-01-16 The Procter & Gamble Company Films comprising biodegradable PHA copolymers
US6221316B1 (en) 1997-12-16 2001-04-24 Urs J. Hänggi Use of blends of water-resistant and biodegradable polymers made from renewable feedstocks with increased binding affinity for the production of carriers for analytic systems

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* Cited by examiner, † Cited by third party
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US6027787A (en) * 1994-01-28 2000-02-22 The Procter & Gamble Company Films and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate comonomer units
US5498692A (en) * 1994-01-28 1996-03-12 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers
US5502116A (en) * 1994-01-28 1996-03-26 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers of 3-hydroxyhexanoate
US5602227A (en) * 1994-01-28 1997-02-11 The Procter & Gamble Company Biodegradable copolymers
US5618855A (en) * 1994-01-28 1997-04-08 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers
US5990271A (en) * 1994-01-28 1999-11-23 The Procter & Gamble Company Films and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate comonomer units
US6013590A (en) * 1994-01-28 2000-01-11 The Procter & Gamble Company Fibers, nonwoven fabrics, and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate
USRE36548E (en) * 1994-01-28 2000-02-01 The Procter & Gamble Company Biodegradable copolymers
US5489470A (en) * 1994-01-28 1996-02-06 The Procter & Gamble Company Biodegradable copolymers and plastic articles comprising biodegradable copolymers
US6143947A (en) * 1996-01-29 2000-11-07 The Procter & Gamble Company Fibers, nonwoven fabrics and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate
US6221316B1 (en) 1997-12-16 2001-04-24 Urs J. Hänggi Use of blends of water-resistant and biodegradable polymers made from renewable feedstocks with increased binding affinity for the production of carriers for analytic systems
US6077931A (en) * 1998-12-21 2000-06-20 The Procter & Gamble Company Biodegradable PHA copolymers
US6160199A (en) * 1998-12-21 2000-12-12 The Procter & Gamble Company Absorbent articles comprising biodegradable PHA copolymers
US6174990B1 (en) 1998-12-21 2001-01-16 The Procter & Gamble Company Films comprising biodegradable PHA copolymers
US6569990B1 (en) 1998-12-21 2003-05-27 The Procter & Gamble Company Plastic articles comprising biodegradable PHA copolymers

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