JPH085988B2 - Method for producing high-quality cosmetic puff base material - Google Patents
Method for producing high-quality cosmetic puff base materialInfo
- Publication number
- JPH085988B2 JPH085988B2 JP20746292A JP20746292A JPH085988B2 JP H085988 B2 JPH085988 B2 JP H085988B2 JP 20746292 A JP20746292 A JP 20746292A JP 20746292 A JP20746292 A JP 20746292A JP H085988 B2 JPH085988 B2 JP H085988B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- water
- emulsion
- puff base
- soluble
- 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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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は高物性化粧用パフ基材の
製造方法に関し、更に詳しくは、感触に優れるととも
に、強度及び耐磨耗性に優れた高物性化粧用パフ基材の
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a cosmetic puff base material having high physical properties, and more particularly, a method for producing a cosmetic puff base material having high physical properties, which is excellent in touch, strength and abrasion resistance. It is about.
【０００２】[0002]
【従来の技術】従来、化粧用パフに使用されている原料
ラテックスについて、天然ゴムラテックススポンジの場
合は感触（ソフト感）が良いため、化粧用パフとして長
年使用されてきた。しかし、以下のような欠点がある。 （１）耐候性が悪く使用中に「ボロボロ」になる。 （２）ファンデーションに含まれているオイルに侵され
膨潤し「ブヨブヨ」になる。 （３）天然ゴムラテックスに含まれている蛋白質及び有
機物によりパフ使用中の微生物の繁殖があり「カビ」が
発生する。これらの改良品として合成ゴムを使用したス
ポンジ化粧用パフとしてＮＢＲラテックスが使用されて
おり、これにより耐候性、耐油性、微生物の発生につい
ては改善された。2. Description of the Related Art Conventional raw latex used for cosmetic puffs has been used for many years as a cosmetic puff because natural rubber latex sponges have a good feel (soft feeling). However, it has the following drawbacks. (1) It has poor weather resistance and becomes “tattered” during use. (2) The oil contained in the foundation swells and swells into "buyobuyo". (3) Due to the proteins and organic substances contained in the natural rubber latex, microorganisms grow during use of the puff, causing "mold". As these improved products, NBR latex is used as a sponge cosmetic puff that uses synthetic rubber, and as a result, weather resistance, oil resistance, and generation of microorganisms have been improved.
【０００３】[0003]
【発明が解決しようとする課題】しかし、現在では更に
化粧用パフの使用寿命を上げるための要求が強くなり高
物性（強度、耐磨耗性）が要求されている。一方、この
物性に優れたポリウレタンフォームの使用も考えられる
が（実公昭６０−３３８６３号公報、特開昭６２−１４
８６０８号公報等）、ＮＢＲのような優れた感触を得る
ことはできない。また、三次元網状構造でその気泡径が
小さいものであっても、使用化粧料が多すぎ、化粧料の
吸収速度が大き過ぎる欠点がある。However, at present, there is a strong demand for further increasing the service life of cosmetic puffs, and high physical properties (strength and abrasion resistance) are required. On the other hand, use of a polyurethane foam having excellent physical properties can be considered (Japanese Utility Model Publication No. 60-33863 and Japanese Patent Application Laid-Open No. 62-14).
8608, etc.), it is not possible to obtain an excellent feel like NBR. Further, even if the bubble diameter is small with a three-dimensional network structure, there are drawbacks that the amount of cosmetics used is too large and the absorption rate of the cosmetics is too high.
【０００４】本発明は、上記問題点を解決するものであ
り、ウレタンエマルジョンとＮＢＲのエマルジョンを混
合し反応（架橋）することにより、感触に優れるととも
に強度及び磨耗性に優れ、寿命の長い高物性化粧用パフ
基材の製造方法を提供することを目的とする。The present invention solves the above-mentioned problems, and by mixing and reacting (crosslinking) a urethane emulsion and an NBR emulsion, they are excellent in touch and are excellent in strength and abrasion, and have a long life and high physical properties. An object is to provide a method for producing a cosmetic puff base material.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、ウレタン
エマルジョンとＮＢＲのラテックスを混合し、相溶性を
上げるために種々の界面活性剤を検討した結果、従来か
ら使用している「硫黄」による架橋反応を起こすことに
よりこの欠点が解消されることを見出して、本発明を完
成するに至ったのである。即ち、本発明の高物性化粧用
パフ基材の製造方法は、水溶性ＮＢＲエマルジョン、水
溶性ウレタンエマルジョン、架橋剤、界面活性剤及びゲ
ル化剤を含む組成物に、空気を混入し撹拌し発泡させ、
その後加熱加硫させて所定形状のパフ基材を製造する方
法であって、上記水溶性ＮＢＲエマルジョンの固形分濃
度は６０重量％以上であり、上記水溶性ウレタンエマル
ジョンの配合割合は、固形分換算にて、上記両エマルジ
ョンの固形分全体に対して５〜１５重量％であることを
特徴とする。上記水溶性ウレタンエマルジョンの配合割
合が５重量％未満では、耐磨耗性及び引張り強さが十分
でなく、これが１５重量％を越える場合は、外観、感触
が悪くなるため、好ましくない。Means for Solving the Problems The present inventors have mixed urethane emulsion and NBR latex and studied various surfactants to improve compatibility. As a result, "sulfur" which has been conventionally used has been found. The inventors have found that this drawback can be eliminated by causing a crosslinking reaction due to, and have completed the present invention. That is, the method for producing a high-quality cosmetic puff base material of the present invention is to foam a composition containing a water-soluble NBR emulsion, a water-soluble urethane emulsion, a cross-linking agent, a surfactant and a gelling agent by mixing air with stirring. Let
A method for producing a puff base material having a predetermined shape by heating and vulcanizing it thereafter, wherein the solid content concentration of the water-soluble NBR emulsion is 60% by weight or more, and the mixing ratio of the water-soluble urethane emulsion is the solid content conversion. And 5 to 15% by weight based on the total solid content of both emulsions. If the blending ratio of the water-soluble urethane emulsion is less than 5% by weight, abrasion resistance and tensile strength are not sufficient, and if it exceeds 15% by weight, the appearance and feel are deteriorated, which is not preferable.
【０００６】上記水溶性ウレタンエマルジョンはポリエ
ステル系であり、上記パフ基材は、発泡体倍率が７〜１
０倍であり、引張り強さが１．１５ｋｇ／ｃｍ2 以上で
あり、磨耗減量率が、ＪＩＳ Ｌ０８２３準拠の方法
（荷重２００ｇ、速度３０ｒｐｍ、４０００回後の磨耗
減量）による測定値において０．５％以下であるという
優れた耐磨耗性のものとすることができる。The water-soluble urethane emulsion is a polyester type, and the puff base material has a foam ratio of 7 to 1.
It is 0 times, the tensile strength is 1.15 kg / cm 2 or more, and the abrasion loss rate is 0.5 in the value measured by the method based on JIS L0823 (load 200 g, speed 30 rpm, abrasion loss after 4000 times). % Or less, which is excellent in abrasion resistance.
【０００７】[0007]
【作用】本発明においては、ラテックス成分としてはＮ
ＢＲが主成分である。従って、美観、感触、更に耐候
性、耐油性及び耐微生物性に優れるパフ基材とすること
ができる。また、所定量のポリウレタンをラテックス成
分として含むので、引張り強さ及び耐磨耗性に著しく優
れる。更に、固形分が６０％以上あること、水溶性
エマルジョンであること、加硫（架橋）剤を使用する
こと、界面活性剤を使用すること、ゲル化剤を使用
することにより、安定し且つ容易に高物性のパフ基材を
製造できる。In the present invention, the latex component is N
BR is the main component. Therefore, it is possible to obtain a puff base material which is excellent in aesthetics, feel, weather resistance, oil resistance and microbial resistance. Further, since a predetermined amount of polyurethane is contained as a latex component, it is remarkably excellent in tensile strength and abrasion resistance. Furthermore, by having a solid content of 60% or more, being a water-soluble emulsion, using a vulcanization (crosslinking) agent, using a surfactant, and using a gelling agent, it is stable and easy. A puff base material having high physical properties can be manufactured.
【０００８】[0008]
【実施例】以下、実施例により本発明を具体的に説明す
る。 （１）試験片の作製 先ず、表１に示す組成を有する実施例１及び比較例１〜
４に係わるラテックス組成物を用意した。EXAMPLES The present invention will be specifically described below with reference to examples. (1) Preparation of Test Piece First, Example 1 and Comparative Examples 1 to 1 having the compositions shown in Table 1
A latex composition according to No. 4 was prepared.
【０００９】[0009]
【表１】 [Table 1]
【００１０】尚、表１における組成に関する数値は、各
成分を固形分換算した値であり、その単位は「重量部」
である。また、表中の「ＮＢＲ ５３１ Ｂ」は、アク
リロニトリルブタジエンゴムの高アクリロニトリル品
〔アクリロニトリルの含有量３５重量％（以下、「％」
という。）〕の水系エマルジョン（濃度；６５％、日本
ゼオン株式会社製）を示す。更に、表中の「ＮＢＲ ５
３１」は、アクリロニトリルブタジエンゴムの中アクリ
ロニトリル品（アクリロニトリルの含有量２５％）の水
系エマルジョン（濃度；６５％、日本ゼオン株式会社
製）を示す。上記「ポリエステル系ウレタン」として
は、ポリエステルポリオール変成ウレタンオリゴマー
（分子量；１０万〜２０万、イソシアネート部分；ＴＤ
Ｉ系又はＭＤＩ系）であり、粘度；６５００ｃｐｓ（Ｂ
Ｍ型回転粘度計、Ｎｏ．４ロータ、１２ｒｐｍ、２５
℃）のものを用いた。The numerical values relating to the composition in Table 1 are the values obtained by converting each component into solid content, and the unit thereof is "part by weight".
Is. Further, "NBR 531 B" in the table is a high acrylonitrile product of acrylonitrile butadiene rubber [content of acrylonitrile 35% by weight (hereinafter, "%"
Say. )] Water-based emulsion (concentration: 65%, manufactured by Nippon Zeon Co., Ltd.). Furthermore, "NBR 5 in the table
“31” represents an aqueous emulsion (concentration: 65%, manufactured by Nippon Zeon Co., Ltd.) of an acrylonitrile product (acrylonitrile content 25%) in acrylonitrile butadiene rubber. Examples of the above "polyester urethane" include polyester polyol modified urethane oligomer (molecular weight: 100,000 to 200,000, isocyanate moiety: TD).
I type or MDI type, viscosity: 6500 cps (B
M-type rotational viscometer, No. 4 rotors, 12 rpm, 25
(° C.) was used.
【００１１】また、同表の「イオウ」としては、粉末イ
オウ（細井化学株式会社製）を、「促進剤」としては、
メルカプトベンゾチアゾールの亜鉛塩（商品名「ノクセ
ラーＭＺ」、大内新興化学株式会社製）を、「酸化亜
鉛」としては、白水化学工業株式会社製のものを用い
た。更に、「老化防止剤」としては、２、２−メチレン
−ビス−４−メチル−６−ターシャリーブチルフェノー
ル（商品名「ノクラックＮＳ−６」、大内新興化学株式
会社製）を、「オレイン酸カリウム」としては、オレイ
ン酸カリ石鹸（花王株式会社製）を用いた。Further, as "sulfur" in the table, powdered sulfur (manufactured by Hosoi Chemical Co., Ltd.) is used, and as "accelerator",
A zinc salt of mercaptobenzothiazole (trade name "NOXCELLER MZ", manufactured by Ouchi Shinko Kagaku Co., Ltd.) and "Zinc oxide" manufactured by Shiramizu Chemical Industry Co., Ltd. were used. Further, as the "antiaging agent", 2,2-methylene-bis-4-methyl-6-tert-butylphenol (trade name "Nocrac NS-6", manufactured by Ouchi Shinko Chemical Co., Ltd.) is used as "oleic acid". As “potassium”, potassium oleate soap (manufactured by Kao Corporation) was used.
【００１２】また、「トリメンベース」は、塩素化ホル
ムアルデヒドとアンモニアの反応生成物（商品名「トリ
メンベース」、ユニロイヤル株式会社製）、「ソディウ
ムオクチルスルフォサクシネート」は商品名「ペレック
スＯＴ−Ｐ」（花王株式会社製）、スルフォコハク酸モ
ノアルキルアミドＮａ塩は商品名「ペレックスＴＡ」
（花王株式会社製）を用いた。更に、「ケイフッ化ソー
ダ」としては、三井東圧化学株式会社製のものを用い
た。尚、同表中の「※」印を付す値は、本発明範囲から
外れるもの等である。そして、試験品に係わる各組成物
は、上記各組成成分を混合して調整したものである。"Trimen base" is a reaction product of chlorinated formaldehyde and ammonia (trade name "Trimen base", manufactured by Uniroyal Corporation), and "sodium octyl sulfosuccinate" is trade name "Perex OT-". P "(manufactured by Kao Corporation), sulfosuccinic acid monoalkylamide Na salt is trade name" Perex TA "
(Manufactured by Kao Corporation) was used. Further, as "sodium fluorosilicate", one manufactured by Mitsui Toatsu Chemicals, Inc. was used. The values marked with "*" in the table are out of the scope of the present invention. Each composition related to the test article is prepared by mixing the above-mentioned composition components.
【００１３】その後、上記各組成物に、空気を混入つ
つ、ケンミックスミキサ（愛工舎製作所株式会社製）に
より、１６０ｒｐｍのミキシング条件下にて攪拌した。
次いで、この各空気混入組成物を、成形用筒状体（外
径；６５ｍｍ、内径；６０ｍｍ）に連続的に流し込み、
これを連続的に加熱炉に搬入して、１２５℃の下、４０
分間掛け加熱した。これにより、表１に示す発泡倍率を
有し、且つ、連続した棒状の発泡体（実施例１及び比較
例１〜４）を得た。尚、この発泡倍率は、各組成物に混
入された空気の量により、調整されている。更に、上記
各発泡体を洗浄、乾燥して、円柱状（５７ｍｍφ）のパ
フ基材を得た。そして、各パフ基材から、厚さ８ｍｍの
略円盤状の片を切り出し、各実施例及び比較例の各試験
片を作製した。Thereafter, while mixing air into each of the above compositions, the mixture was agitated with a Kenmix mixer (manufactured by Aikosha Seisakusho Co., Ltd.) under mixing conditions of 160 rpm.
Then, each of the aerated compositions is continuously poured into a molding cylinder (outer diameter: 65 mm, inner diameter: 60 mm),
This was continuously loaded into a heating furnace and heated at 125 ° C for 40
Heated for minutes. As a result, a continuous rod-shaped foam (Example 1 and Comparative Examples 1 to 4) having a foaming ratio shown in Table 1 was obtained. The expansion ratio is adjusted by the amount of air mixed in each composition. Further, each of the foams was washed and dried to obtain a columnar (57 mmφ) puff base material. Then, an approximately disk-shaped piece having a thickness of 8 mm was cut out from each puff base material to produce each test piece of each Example and Comparative Example.
【００１４】（２）試験片の評価 先ず、各試験片の外観・感触、密度、圧縮荷重、硬さ、
引張り強さ、伸び及び耐磨耗性を調べた。これらの結果
を表１に併記する。尚 外観・感触は、×；硬化で気泡
が大きかったため適さないを示し、○；上記×以外であ
り化粧用パフに適しているを示す。硬さは、Ｆタイプ硬
度計を用いて測定した。圧縮荷重は８ｍｍ、２５％圧縮
により行った。引張り強さ及び伸びの測定はＪＩＳ Ｋ
６３０１に準拠した。磨耗率（％）は、ＪＩＳ Ｌ０８
２３の染色け堅牢度試験用摩擦試験機２型を使用し、荷
重２００ｇ、速度３０ｒｐｍ、４０００回後の磨耗減量
を測定し、この磨耗減量の磨耗前重量に対する割合
（％）で示した。(2) Evaluation of test pieces First, the appearance and feel of each test piece, density, compressive load, hardness,
The tensile strength, elongation and wear resistance were investigated. The results are also shown in Table 1. In addition, the appearance / feel is x: unsuitable because the bubbles were large due to curing, and ◯: other than the above x, suitable for a cosmetic puff. The hardness was measured using an F type hardness meter. The compression load was 8 mm and 25% compression was applied. Measurement of tensile strength and elongation is JIS K
According to 6301. Wear rate (%) is JIS L08
Using the staining only fastness test friction tester type 2 23, load 200 g, the abrasion loss after speed 30 rpm, 4000 times were measured and a percentage (%) relative to the weight before wear of the wear loss.
【００１５】以上の結果によれば、ウレタンの添加がな
い場合（比較例１）では、引張り強さ及び耐磨耗性が悪
い。またこれが２０重量部と多すぎる場合（比較例２）
では、高粘度になり発泡性が悪く、又、ＮＢＲへの分散
が悪く相分離を起こし易く、更に、気泡も大きくパフと
しての外観・感触を備えていない。即ち、均一な気泡に
ならずタワシのように剛性が強く、とても化粧用パフと
して使用できるものではない。更に、ＮＢＲエマルジョ
ンの固形分濃度が５０重量％と低い場合（比較例３）
は、泡強度が低いため泡が連なり、大きな気泡となっ
た。ゲル化剤を添加しない場合（比較例４）では、ゲル
化が不十分であり、気泡が連なり（成長し）、不均一な
大きな泡となった。一方、実施例１では、上記不具合は
全くなく、発泡状態に優れるとともに、引張り強度及び
耐磨耗性の改良が顕しく進んだ。尚、化粧用パフとして
の感触、化粧性については比較例１の現行品と同程度で
あった。尚、本実施例で用いたポリウレタンとしては、
高分子量（オリゴマー）のものを用いたので、このポリ
ウレタンを種々の架橋剤で架橋するまでもなく、ゴムラ
テックスと混ざり合うことにより、高物性を出している
ものと考えられる。According to the above results, the tensile strength and the abrasion resistance are poor when no urethane is added (Comparative Example 1). Further, when this is too much as 20 parts by weight (Comparative Example 2)
, The viscosity is high, the foamability is poor, the dispersion in NBR is poor, and phase separation is apt to occur, and the air bubbles are large, and the appearance and feel as a puff are not provided. That is, it does not form uniform bubbles and has high rigidity like a scrubbing brush, and cannot be used as a cosmetic puff. Furthermore, when the solid content concentration of the NBR emulsion is as low as 50% by weight (Comparative Example 3)
In, the foam strength was low, and the bubbles were continuous, resulting in large bubbles. In the case where the gelling agent was not added (Comparative Example 4), gelation was insufficient, bubbles were connected (grown), and large nonuniform bubbles were formed. On the other hand, in Example 1, the above-mentioned problems were not present at all, the foaming state was excellent, and the tensile strength and abrasion resistance were significantly improved. The touch and cosmetic properties of the makeup puff were similar to those of the current product of Comparative Example 1. As the polyurethane used in this example,
Since a high molecular weight (oligomer) was used, it is considered that the polyurethane has high physical properties by being mixed with the rubber latex without being crosslinked with various crosslinking agents.
【００１６】尚、本発明においては、前記具体的実施例
に示すものに限られず、目的、用途に応じて本発明の範
囲内で種々変更した実施例とすることができる。即ち、
パフ基材は、通常、所望形状への切断、打ち抜き、角部
の面取り等を施し、パフに加工されるが、パフ基材に何
らの加工を施さず、そのままの状態でパフとして用いら
れるものであってもよい。また、パフ基材の形状、大き
さ等は、特に問わず、目的、用途等に応じて種々選択さ
れる。例えば、本実施例では、円柱状のパフ基材を作製
したが、シート状のパフ基材等であってもよい。更に、
ウレタンエマルジョンとしては、上記ポリエステル系に
限らず、他の種類のものを用いることもできるし、ポリ
エステル系についても種々のものを選択使用できる。The present invention is not limited to the specific examples described above, and various modifications may be made within the scope of the present invention depending on the purpose and application. That is,
The puff base material is usually cut into a desired shape, punched, chamfered at the corners, and processed into a puff. However, the puff base material is used as a puff without any processing. May be Further, the shape, size, etc. of the puff base material are not particularly limited, and are variously selected according to the purpose, application and the like. For example, in this embodiment, the columnar puff base material is manufactured, but a sheet-like puff base material or the like may be used. Furthermore,
The urethane emulsion is not limited to the above polyester type, and other types may be used, and various types of polyester type may be selected and used.
【００１７】[0017]
【発明の効果】以上のように、本発明の製造方法によれ
ば、外観・感触に優れるとともに、強度及び耐磨耗性に
優れ、そのため寿命が長い高品質な化粧用パフ基材を製
造できる。As described above, according to the manufacturing method of the present invention, it is possible to manufacture a high-quality cosmetic puff base material which has excellent appearance and feel, strength and abrasion resistance, and thus has a long life. .
Claims (2)
ゴム）エマルジョン、水溶性ウレタンエマルジョン、架
橋剤、界面活性剤及びゲル化剤を含む組成物に、空気を
混入し撹拌し発泡させ、その後加熱加硫により所定形状
のパフ基材を製造する方法であって、 上記水溶性ＮＢＲエマルジョンの固形分濃度は６０重量
％以上であり、上記水溶性ウレタンエマルジョンの配合
割合は、固形分換算にて、上記両エマルジョンの固形分
全体に対して５〜１５重量％であることを特徴とする高
物性化粧用パフ基材の製造方法。1. Water-soluble NBR (nitrile-butadiene-
Rubber) emulsion, a water-soluble urethane emulsion, a cross-linking agent, a surfactant, and a gelling agent are mixed with air, stirred and foamed, and then heat-vulcanized to produce a puff base material having a predetermined shape. Therefore, the solid content concentration of the water-soluble NBR emulsion is 60% by weight or more, and the mixing ratio of the water-soluble urethane emulsion is 5 to 15% by weight based on the total solid content of both emulsions in terms of solid content. %, A method for producing a high-quality cosmetic puff base material.
エステル系であり、上記パフ基材は、発泡体倍率が７〜
１０倍であり、引張り強さが１．１５ｋｇ／ｃｍ2 以上
であり、磨耗減量率が、ＪＩＳ Ｌ０８２３準拠の方法
（荷重２００ｇ、速度３０ｒｐｍ、４０００回後の磨耗
減量）による測定値において０．５％以下である請求項
１記載の高物性化粧用パフ基材の製造方法。2. The water-soluble urethane emulsion is a polyester system, and the puff base material has a foam ratio of 7 to 7.
The tensile strength is 10 times, the tensile strength is 1.15 kg / cm 2 or more, and the abrasion loss rate is 0.5 in a value measured by a method according to JIS L0823 (load 200 g, speed 30 rpm, abrasion loss after 4000 times). % Or less, The method for producing a high physical property cosmetic puff base material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20746292A JPH085988B2 (en) | 1992-07-10 | 1992-07-10 | Method for producing high-quality cosmetic puff base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20746292A JPH085988B2 (en) | 1992-07-10 | 1992-07-10 | Method for producing high-quality cosmetic puff base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0630815A JPH0630815A (en) | 1994-02-08 |
| JPH085988B2 true JPH085988B2 (en) | 1996-01-24 |
Family
ID=16540173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20746292A Expired - Fee Related JPH085988B2 (en) | 1992-07-10 | 1992-07-10 | Method for producing high-quality cosmetic puff base material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085988B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019117084A1 (en) | 2017-12-13 | 2019-06-20 | 日本ゼオン株式会社 | Foam |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4754165B2 (en) * | 2003-10-10 | 2011-08-24 | 株式会社イノアックコーポレーション | How to design a cosmetic sponge |
-
1992
- 1992-07-10 JP JP20746292A patent/JPH085988B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019117084A1 (en) | 2017-12-13 | 2019-06-20 | 日本ゼオン株式会社 | Foam |
| US11525046B2 (en) | 2017-12-13 | 2022-12-13 | Zeon Corporation | Foam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0630815A (en) | 1994-02-08 |
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