JPH02107201A - Molding of foamed plastic sole - Google Patents
Molding of foamed plastic soleInfo
- Publication number
- JPH02107201A JPH02107201A JP63260181A JP26018188A JPH02107201A JP H02107201 A JPH02107201 A JP H02107201A JP 63260181 A JP63260181 A JP 63260181A JP 26018188 A JP26018188 A JP 26018188A JP H02107201 A JPH02107201 A JP H02107201A
- Authority
- JP
- Japan
- Prior art keywords
- sole
- bridging
- mold cavity
- foamed
- foaming
- 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
- 229920003023 plastic Polymers 0.000 title claims description 9
- 239000004033 plastic Substances 0.000 title claims description 9
- 238000000465 moulding Methods 0.000 title abstract description 6
- 238000005187 foaming Methods 0.000 claims abstract description 11
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012778 molding material Substances 0.000 claims abstract description 10
- 229920002681 hypalon Polymers 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 7
- 239000004088 foaming agent Substances 0.000 claims abstract description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 238000004132 cross linking Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 8
- -1 azo compound Chemical class 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000004636 vulcanized rubber Substances 0.000 abstract description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 150000002832 nitroso derivatives Chemical class 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は発泡靴底の成形法に関するものである。[Detailed description of the invention] (Industrial application field) This invention relates to a method of molding foam soles.
（従来の技術）
従来、特開昭４７−３８１３４号によって、エチレンと
酢酸ビニルとの共重合体樹脂を主成分とする架橋発泡性
の靴底成形材をモールドキャビティに導入し、これを加
熱加圧して塑形底を架橋成形した後、モールドキャビテ
ィを開放することによって塑形底を発泡させて、Ｃ硬度
が６０°前後の発泡靴底の成形法が提案されている。こ
のようにして成形された架橋発泡されたエチレンと酢酸
ビニルとの共重合体樹脂製の発泡靴底は軽量でクツショ
ン性に優れているという点からして、一般に賞月されて
いる。しかしながらこれらの発泡靴底は、タイル、コン
クリート等のなめらかな床面において非常に滑り易かっ
た。したがってこのようななめらかな床面での防滑性を
付与するため、Ｃ硬度（ＳＲＩＳ ０１０１による膨張
ゴムのＣ型硬度計による圧縮のかたさ）が４０゜〜５０
゛の軟質発泡靴底を検討したが、防滑性は改薯されるこ
となく耐摩耗性、耐油性が著しく低下し、靴底としては
不適であった６従って業界において一般的にこれらの発
泡靴底の接地面側にさらに加硫ゴム接地底を貼着して、
防滑性、耐摩耗性の改善を図っていた。然し乍らこのよ
うな靴底はコストが著しく高くなっていた。(Prior art) Conventionally, according to Japanese Patent Application Laid-Open No. 47-38134, a cross-linked foaming shoe sole molding material whose main component is a copolymer resin of ethylene and vinyl acetate was introduced into a mold cavity, and then heated and heated. A method has been proposed in which a foamed shoe sole with a C hardness of about 60° is formed by cross-linking a plastic sole by pressing and then foaming the plastic sole by opening a mold cavity. Foamed shoe soles made of cross-linked foamed ethylene and vinyl acetate copolymer resin molded in this manner are generally prized for their light weight and excellent cushioning properties. However, these foam soles were extremely slippery on smooth floor surfaces such as tiles and concrete. Therefore, in order to provide anti-slip properties on such smooth floor surfaces, the C hardness (compression hardness measured by the C type hardness tester of expanded rubber according to SRIS 0101) must be between 40° and 50°.
We investigated the use of soft foam shoe soles, but the anti-slip properties were not improved, and the abrasion resistance and oil resistance were significantly reduced, making them unsuitable as shoe soles6.Therefore, these foam shoe soles are generally used in the industry. Further attach a vulcanized rubber grounding sole to the grounding surface side of the bottom,
The aim was to improve slip resistance and wear resistance. However, the cost of such soles was significantly higher.
（発明の解決しようとする問題点）
この発明は簡単な方法で、なめらかな床面でも防滑性を
発揮し、耐摩耗性、耐油性に優れた発泡靴底を廉価に提
供しようとするものである。(Problems to be Solved by the Invention) This invention aims to provide, in a simple manner, a foamed shoe sole that exhibits anti-slip properties even on smooth floors and has excellent abrasion resistance and oil resistance at a low cost. be.
（問題点を解決するための手段）
この発明はエチレンと酢酸ビニルとの共重合体樹脂１０
０重量部に対して、クロロスルフォン化ポリエチレン５
〜２０重量部を配合した混合ポリマーを主成分とし、こ
れに架橋剤と発泡剤を添加した架橋発泡性の靴底成形材
をモールドキャビティに導入し、これを加熱加圧して塑
形底を架橋成形した後、モールドキャビティを開放して
塑形底を１．３〜１．８倍に発泡させて、Ｃ硬度が４０
’〜５５°の発泡靴底の成形法を発明の要旨とするもの
である。(Means for Solving the Problems) This invention is a copolymer resin of ethylene and vinyl acetate.
5 parts by weight of chlorosulfonated polyethylene
A cross-linked and foamable shoe sole molding material, which is mainly composed of a mixed polymer containing ~20 parts by weight and to which a cross-linking agent and a foaming agent are added, is introduced into the mold cavity, and heated and pressurized to cross-link the plastic sole. After molding, the mold cavity is opened and the plastic bottom is foamed 1.3 to 1.8 times to a C hardness of 40.
The gist of the invention is a method for molding a foamed shoe sole with an angle of 55 degrees.
この発明に靴底成形材として使用されるエチレンと酢酸
ビニルとの共重合体樹脂（ＥＶＡ）としては、酢酸ビニ
ルの含有量が１０〜３０％のものが好ましい６酢酸ビニ
ルの含有量がそれ以下となれば、ゴム弾性、柔軟性、ク
ツション性が低下し、また酢酸ビニルの含有量がそれ以
上となれば、ゴム弾性、柔軟性、クツション性はよくな
るが耐摩耗性、保形性、気泡の緻密さが低下するきらい
がある。The copolymer resin of ethylene and vinyl acetate (EVA) used as a shoe sole molding material in this invention preferably has a vinyl acetate content of 10 to 30%, and a hexavinyl acetate content of less than that. If so, the rubber elasticity, flexibility, and cushioning properties will decrease, and if the vinyl acetate content is higher than that, the rubber elasticity, flexibility, and cushioning properties will improve, but the abrasion resistance, shape retention, and bubble prevention will decrease. There is a tendency for the density to deteriorate.
この発明において、靴底成形材として使用されるクロロ
スルフォン化ポリエチレンはポリエチレンに塩素と亜硫
酸ガスを反応させ、加硫可能な弾性体に変化させてでき
た合成ゴムの一種で、具体的には米国デュポン社よリハ
イパロンの商品名で一般に市販されているものである。In this invention, the chlorosulfonated polyethylene used as the shoe sole molding material is a type of synthetic rubber made by reacting polyethylene with chlorine and sulfur dioxide gas to transform it into a vulcanizable elastic body. It is commonly marketed by DuPont under the trade name Rehypalon.
そしてこの発明において靴底成形材として使用される混
合ポリマーの混合比をエチレンと酢酸ビニルとの共重合
体樹脂１００重量部に対して、クロロスルフォン化ポリ
エチレン５〜２０重量部に限定したのは、クロロスルフ
ォン化ポリエチレンの配合量がそれ以下となれば、防滑
性、耐摩耗性、耐油性が低下し、またクロロスルフォン
化ポリエチレンの配合量がそれ以上となれば、熱可塑性
が低下し、塑形性が悪くなり、しかも得られた発泡靴底
は柔軟性がなくなり、しかも発泡成形後の収縮変形が大
きくなり、寸法安定性が悪くなる欠点があるからである
。In this invention, the mixing ratio of the mixed polymer used as the shoe sole molding material is limited to 5 to 20 parts by weight of chlorosulfonated polyethylene to 100 parts by weight of the copolymer resin of ethylene and vinyl acetate. If the amount of chlorosulfonated polyethylene is less than that, the anti-slip properties, abrasion resistance, and oil resistance will decrease, and if the amount of chlorosulfonated polyethylene is more than that, the thermoplasticity will decrease and the plasticity will be reduced. This is because the resulting foamed shoe sole has poor flexibility, and furthermore, shrinkage deformation after foaming becomes large, resulting in poor dimensional stability.
この発明において上記混合ポリマーに添加される架橋剤
としては、硫黄、ジクミルパーオキサイド、２．５−ジ
メチル−２，５ジ（第３−ブチルペルオキシ）ヘキサン
、ベンゾイルパーオキサイド、第３−ブチルパーオキサ
イド等のエチレンと酢酸ビニルとの共重合体の架橋に使
用される架橋剤が使用される。発泡剤としてはアゾジカ
ルボンアミド等のアゾ系の化合物、ジニトロソペンダメ
チレンテトラミン等のニトロソ化合物、ｐ、ｐ’オキシ
ビスベンゼンスルフォニルヒドラジッド等の発泡剤が使
用される。In this invention, the crosslinking agents added to the mixed polymer include sulfur, dicumyl peroxide, 2,5-dimethyl-2,5 di(tert-butylperoxy)hexane, benzoyl peroxide, and tert-butyl peroxide. A crosslinking agent used for crosslinking copolymers of ethylene and vinyl acetate, such as oxide, is used. As the blowing agent, azo compounds such as azodicarbonamide, nitroso compounds such as dinitrosopendamethylenetetramine, p, p'oxybisbenzenesulfonyl hydrazide, and the like are used.
この発明において、上記の混合ポリマーに天然ゴム、ス
チレンブタジェンゴム、ポリブタジェンゴム、ポリイソ
プレンゴム、ハイスチレンゴム、エチレンプロピレンゴ
ム等の合成ゴムの一種または二種に以上を添加すること
によって得られる発泡靴底のゴム弾性、引っ張り強度、
柔軟性の向上を図ることもできる。In this invention, the above-mentioned mixed polymer is obtained by adding one or more of synthetic rubbers such as natural rubber, styrene-butadiene rubber, polybutadiene rubber, polyisoprene rubber, high-styrene rubber, and ethylene-propylene rubber. rubber elasticity, tensile strength,
It is also possible to improve flexibility.
その他必要に応じて架橋助剤、架橋促進剤、カーボンブ
ラック、炭酸力ルシュウム、炭酸マグネシュウム等の充
填剤、顔料、安定剤を添加したものをバンバリーミキサ
−、ミキシングロール、ニーダ−等の混合機によって均
一に混合し、シーテングし、これを靴底の成形に使用さ
れる成形型のモールドキャビティ１の容積に合わせて裁
断準備される。In addition, crosslinking aids, crosslinking accelerators, fillers such as carbon black, lucium carbonate, magnesium carbonate, pigments, and stabilizers are added as necessary using a mixer such as a Banbury mixer, mixing roll, or kneader. The mixture is mixed uniformly, sheeted, and cut to fit the volume of the mold cavity 1 of the mold used for molding shoe soles.
このようにして準備された靴底成形材は常法によって成
形型のキャビティに導入され、加熱加圧して靴底が架橋
成形された後、成形型のキャビティを開放して架橋成形
された靴底は１．３〜１．８倍に発泡されるものである
。The shoe sole molding material prepared in this way is introduced into the cavity of a mold by a conventional method, and the sole is cross-linked by heating and pressurized, and then the cavity of the mold is opened and the cross-linked sole is formed. is foamed 1.3 to 1.8 times.
この発明において、発泡靴底の発泡倍率を１゜３〜１．
８倍に限定したのは、発泡倍率がそれ以下となれば靴底
の重量が重くなりクツション性が低下する欠点があり、
また発泡倍率がそれ以上となれば、得られる発泡靴底の
引っ張り強度と引裂強度等の機械的強度が低下し、靴底
としての耐久性に難点があるからである。In this invention, the foaming ratio of the foamed shoe sole is 1.3~1.
The reason for limiting the foaming ratio to 8 times is that if the foaming ratio is lower than that, the weight of the sole will be heavy and the cushioning properties will be reduced.
Moreover, if the foaming ratio is higher than that, the mechanical strength such as tensile strength and tear strength of the resulting foamed shoe sole will decrease, and the durability as a shoe sole will be poor.
この発明において１発泡靴底のＣ硬度を４０＠〜５５°
に限定したのは、Ｃ硬度がそれ以下となれば発泡靴底の
引っ張り強度と引裂強度が低下し、靴底としての耐久性
に難点があり、またＣ硬度がそれ以上となれば靴底の防
滑性が低下するからである。In this invention, the C hardness of the foam sole is 40@~55°.
The reason for this is that if the C hardness is lower than that, the tensile strength and tear strength of the foam sole will decrease, making it difficult to maintain the durability of the sole. This is because the anti-slip property decreases.
で１５分間加熱加圧して、キャビティ内で塑形底を架橋
成形した後、モールドキャビティを開放して塑形底を１
．６倍に発泡させＣ硬度が４５６の発泡靴底を成形した
。After applying heat and pressure for 15 minutes to cross-link the plastic bottom in the cavity, the mold cavity was opened and the plastic bottom was
．． A foamed shoe sole with a C hardness of 456 was formed by foaming 6 times.
このようにして成形された発泡靴底を比較例１．２．３
によって同様にして成形された発泡靴底とその物性を比
較して第１表下段に示す。Comparative Example 1.2.3 The foamed shoe sole formed in this way
The lower row of Table 1 shows a comparison of its physical properties with that of a foamed shoe sole molded in the same manner as above.
実施例
第１表上段、実施例１，２．３に示す配合で、発泡倍率
１．６倍に調整された靴底成形材を混線ロールで混練し
た後、１５ｎｎ厚に圧延生地だしして成形型のキャビテ
ィの容積に合わせて秤量裁断して靴底成形材を準備し、
これを成形型のキャビティに導入し、成形型と蓋型を嵌
合し、１５５℃でプレス圧１２０ｋｇ／ｃｄ（ゲージ圧
）注２ 商品名 米国デュポン社製
（試験方法）
耐摩耗性 アクロン式角度１０ａ荷重３ｋｇ １０００
回防滑性 乾燥タイル上、濡れタイル上で実施。Example A shoe sole molding material with the composition shown in the upper row of Table 1, Examples 1 and 2.3, with the foaming ratio adjusted to 1.6 times, was kneaded with a mixed wire roll, and then rolled to a thickness of 15 nn and molded. Prepare the sole molding material by weighing and cutting it according to the volume of the mold cavity.
Introduce this into the mold cavity, fit the mold and lid mold together, and press at 155°C with a press pressure of 120 kg/cd (gauge pressure) Note 2. Product name: Made by DuPont (Test method) Abrasion resistance: Akron angle 10a load 3kg 1000
Anti-slip property Performed on dry tiles and wet tiles.
最大摩擦力を簡易方法にて測定し。Measure the maximum frictional force using a simple method.
比較したもの
耐油性 ＪＩＳＫ６３０１ Ｎα３油 ４０℃×２
２時間耐薬品性 濃硫酸、濃塩酸への浸漬変化、脆化、
変色等で判断。Comparison: Oil resistance JISK6301 Nα3 oil 40℃ x 2
2-hour chemical resistance No change due to immersion in concentrated sulfuric acid or concentrated hydrochloric acid, embrittlement,
Judging by discoloration etc.
（発明の効果）
以上のように、本発明によって得られた発泡靴底は、防
滑性、耐摩耗性、耐油性に優れたものであった。また発
泡靴底の接地面側に従来のように加硫ゴム底を貼着する
必要もなく廉価である。(Effects of the Invention) As described above, the foamed shoe sole obtained by the present invention was excellent in anti-slip properties, abrasion resistance, and oil resistance. In addition, there is no need to attach a vulcanized rubber sole to the contact surface side of the foam sole, as is the case in the past, and the cost is low.
さらにこの発明によって得られた発泡靴底は、耐薬品性
にも優れたものであり、台所、風呂場等の上履用の靴底
としても有用である。Furthermore, the foamed soles obtained by the present invention have excellent chemical resistance and are useful as soles for indoor shoes in the kitchen, bathroom, etc.
Claims (1)
対して、クロロスルフォン化ポリエチレン５〜２０重量
部を配合した混合ポリマーを主成分とし、これに架橋剤
と発泡剤を添加した架橋発泡性の靴底成形材をモールド
キャビティに導入し、これを加熱加圧して塑形底を架橋
成形した後、モールドキャビティを開放して塑形底を１
．３〜１．８倍に発泡させて、Ｃ硬度が４０゜〜５５゜
の発泡靴底の成形法。The main component is a mixed polymer containing 5 to 20 parts by weight of chlorosulfonated polyethylene to 100 parts by weight of a copolymer resin of ethylene and vinyl acetate, and a crosslinking and foaming agent is added thereto. The sole molding material is introduced into the mold cavity, and the material is heated and pressed to form a plastic sole. After that, the mold cavity is opened and the plastic sole is molded.
．． A method of forming a foamed shoe sole by foaming 3 to 1.8 times and having a C hardness of 40° to 55°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260181A JPH02107201A (en) | 1988-10-14 | 1988-10-14 | Molding of foamed plastic sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260181A JPH02107201A (en) | 1988-10-14 | 1988-10-14 | Molding of foamed plastic sole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02107201A true JPH02107201A (en) | 1990-04-19 |
| JPH0470888B2 JPH0470888B2 (en) | 1992-11-12 |
Family
ID=17344451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63260181A Granted JPH02107201A (en) | 1988-10-14 | 1988-10-14 | Molding of foamed plastic sole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107201A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294411B1 (en) * | 1996-10-25 | 2001-09-25 | Nippon Steel Semiconductor Corporation | Method for molding a semiconductor device utilizing a satin finish |
| JP2008212477A (en) * | 2007-03-06 | 2008-09-18 | Enzerasu Kk | Footwear |
| EP3165562A1 (en) | 2015-11-06 | 2017-05-10 | Kaimann GmbH | Expandable and crosslinkable elastomeric formulation for the manufacture of insulation materials exhibiting high fire retardancy and low smoke creation properties |
| CN110624204A (en) * | 2019-08-29 | 2019-12-31 | 青岛三鸿塑料制品有限公司 | Empty hand way training pad with good anti-skid performance and manufacturing process thereof |
| JP2020037641A (en) * | 2018-09-04 | 2020-03-12 | 東ソー株式会社 | Composition for resin foam |
| CN112795078A (en) * | 2021-01-30 | 2021-05-14 | 莆田市荔城区富立鞋用材料有限公司 | High-wear-resistance shock-absorption EVA sole material and preparation method and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10772377B2 (en) * | 2016-11-04 | 2020-09-15 | Totes Isotoner Corporation | Footwear sole |
-
1988
- 1988-10-14 JP JP63260181A patent/JPH02107201A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294411B1 (en) * | 1996-10-25 | 2001-09-25 | Nippon Steel Semiconductor Corporation | Method for molding a semiconductor device utilizing a satin finish |
| JP2008212477A (en) * | 2007-03-06 | 2008-09-18 | Enzerasu Kk | Footwear |
| EP3165562A1 (en) | 2015-11-06 | 2017-05-10 | Kaimann GmbH | Expandable and crosslinkable elastomeric formulation for the manufacture of insulation materials exhibiting high fire retardancy and low smoke creation properties |
| EP3165563A1 (en) | 2015-11-06 | 2017-05-10 | Kaimann GmbH | Expandable and crosslinkable elastomeric formulation for the manufacture of insulation materials exhibiting high fire retardancy and low smoke creation properties |
| JP2020037641A (en) * | 2018-09-04 | 2020-03-12 | 東ソー株式会社 | Composition for resin foam |
| CN110624204A (en) * | 2019-08-29 | 2019-12-31 | 青岛三鸿塑料制品有限公司 | Empty hand way training pad with good anti-skid performance and manufacturing process thereof |
| CN112795078A (en) * | 2021-01-30 | 2021-05-14 | 莆田市荔城区富立鞋用材料有限公司 | High-wear-resistance shock-absorption EVA sole material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0470888B2 (en) | 1992-11-12 |
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