JP5472286B2 - ディップ成形用組成物及びディップ成形体 - Google Patents
ディップ成形用組成物及びディップ成形体 Download PDFInfo
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- JP5472286B2 JP5472286B2 JP2011501467A JP2011501467A JP5472286B2 JP 5472286 B2 JP5472286 B2 JP 5472286B2 JP 2011501467 A JP2011501467 A JP 2011501467A JP 2011501467 A JP2011501467 A JP 2011501467A JP 5472286 B2 JP5472286 B2 JP 5472286B2
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- JP
- Japan
- Prior art keywords
- dip
- ethylenically unsaturated
- salt
- synthetic polyisoprene
- dicarboxylic acid
- 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.)
- Expired - Fee Related
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- 238000000465 moulding Methods 0.000 title claims description 81
- 239000000203 mixture Substances 0.000 title claims description 78
- 229920003051 synthetic elastomer Polymers 0.000 claims description 72
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- 239000004816 latex Substances 0.000 claims description 44
- 229920000126 latex Polymers 0.000 claims description 44
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 44
- 239000002270 dispersing agent Substances 0.000 claims description 40
- -1 olefin compound Chemical class 0.000 claims description 38
- 150000003839 salts Chemical class 0.000 claims description 38
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 37
- 150000001336 alkenes Chemical class 0.000 claims description 34
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- 238000004073 vulcanization Methods 0.000 claims description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 229910052717 sulfur Inorganic materials 0.000 claims description 18
- 239000011593 sulfur Substances 0.000 claims description 18
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 9
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- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
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- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 6
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- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
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- 238000004458 analytical method Methods 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000005018 casein Substances 0.000 description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 4
- 235000021240 caseins Nutrition 0.000 description 4
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- NKHAVTQWNUWKEO-UHFFFAOYSA-N fumaric acid monomethyl ester Natural products COC(=O)C=CC(O)=O NKHAVTQWNUWKEO-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 4
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 3
- CRFUICKFRYFSMD-XSLOJZKRSA-N (Z)-4-butoxy-4-oxo-2-(2-phenylethenyl)but-2-enoic acid Chemical compound C(CCC)OC(\C=C(/C(=O)O)\C=CC1=CC=CC=C1)=O CRFUICKFRYFSMD-XSLOJZKRSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
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- 208000010668 atopic eczema Diseases 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
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- 239000002184 metal Substances 0.000 description 3
- NKHAVTQWNUWKEO-IHWYPQMZSA-N methyl hydrogen fumarate Chemical compound COC(=O)\C=C/C(O)=O NKHAVTQWNUWKEO-IHWYPQMZSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
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- 238000012360 testing method Methods 0.000 description 3
- GTVVADNAPPKOSH-PLNGDYQASA-N (z)-4-butan-2-yloxy-4-oxobut-2-enoic acid Chemical compound CCC(C)OC(=O)\C=C/C(O)=O GTVVADNAPPKOSH-PLNGDYQASA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- GIUBHMDTOCBOPA-UHFFFAOYSA-N 3h-1,3-benzothiazole-2-thione;zinc Chemical compound [Zn].C1=CC=C2SC(S)=NC2=C1 GIUBHMDTOCBOPA-UHFFFAOYSA-N 0.000 description 2
- 241000125099 Alastor Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
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- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 229940005573 sodium fumarate Drugs 0.000 description 1
- 235000019294 sodium fumarate Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- FWMUJAIKEJWSSY-UHFFFAOYSA-N sulfur dichloride Chemical compound ClSCl FWMUJAIKEJWSSY-UHFFFAOYSA-N 0.000 description 1
- 229940052367 sulfur,colloidal Drugs 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- PGNWIWKMXVDXHP-UHFFFAOYSA-L zinc;1,3-benzothiazole-2-thiolate Chemical compound [Zn+2].C1=CC=C2SC([S-])=NC2=C1.C1=CC=C2SC([S-])=NC2=C1 PGNWIWKMXVDXHP-UHFFFAOYSA-L 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/14—Dipping a core
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Moulding By Coating Moulds (AREA)
Description
(1) 合成ポリイソプレンの重量平均分子量
合成ポリイソプレンラテックスを固形分濃度で0.1質量%となるように、テトラヒドロフランに溶解した。この溶液をゲル・パーミエーション・クロマトグラフィー分析し、標準ポリスチレン換算の重量平均分子量として算出した。
(2) 合成ポリイソプレンのシス結合単位量
合成ポリイソプレンラテックスにメタノールを添加し、凝固した。得られた凝固物を乾燥した後、1H−NMR分析して、合成ポリイソプレン中の全イソプレン単位に対するシス結合単位の割合で示す。
(3) 合成ポリイソプレンラテックスの体積平均粒子径
光散乱回折粒子測定装置(コールター社製:LS−230)を用いて、体積平均粒子径として求めた。
(4) ディップ成形体の引張強度
ディップ成形体の引張強度は、ASTM D412に基づいて測定された。ディップ成形フィルムをダンベル(Die−C)で打ち抜き、引張強度測定用試験片を作製した。当該試験片をテンシロン万能試験機((株)オリエンテック製RTC−1225A)で引張速度500mm/minで引っ張り、破断直前の引張強度(単位:MPa)を測定した。
(5) ディップ成形用組成物の貯蔵安定性
得られたディップ成形用組成物を、恒温槽内にて、30℃で7日間貯蔵した。その後、ディップ成形用組成物を100メッシュの金網に通し、金網上に残存する凝集物の乾燥質量を計測した。この乾燥凝集物のディップ成形用組成物中の全固形分に対する百分率割合で示す。この数値が大きいと、ディップ成形用組成物は貯蔵安定性に劣ることを示している。
合成ポリイソプレン(日本ゼオン(株)製:NIPOL IR2200L)をシクロヘキサンに溶解し、固形分濃度10質量%のポリイソプレンのシクロヘキサン溶液を調整した。当該シクロヘキサン溶液と固形分濃度1.5質量%のドデシルベンゼンスルホン酸ナトリウム水溶液を質量比で1:1となるように混合し、攪拌した。この操作をローター・ステーター型乳化機(太平洋機工(株)製マイルダー307)により10回行い、乳化液を得た。当該乳化液から80℃、−0.01〜−0.09MPaの減圧下でシクロヘキサンを留去し、その後、連続遠心分離機(アルファラバル社製SGR509)で遠心分離を行い、固形分濃度57質量%の合成ポリイソプレンラテックスを得た。この合成ポリイソプレンラテックスの体積平均粒子径は、1.0μmであった。合成ポリイソプレンの重量平均分子量は約1,600,000で、そのシス結合単位の割合は、98質量%であった。
製造例1で得た合成ポリイソプレンラテックスを攪拌しながら、スチレン−マレイン酸モノ−n−ブチルエステル重合体のアンモニウム塩(分散剤A)水溶液(荒川化学工業(株)製:アラスター703S)を、当該ラテックスの固形分100質量部に対して、固形分換算で0.75質量部に相当する量添加した。次いで、得られた混合物を攪拌しながら、混合物中の合成ポリイソプレン100質量部に対して、固形分換算で酸化亜鉛1.5質量部、硫黄1.5質量部、老化防止剤(グッドイヤー社製Wingstay L)2質量部、ジエチルジチオカルバミン酸亜鉛0.125質量部、メルカプトベンゾチアゾール亜鉛塩0.3質量部となるように、各配合剤の水分散液を添加した後、水酸化カリウム水溶液を添加して、pHを10.5に調整したディップ成形用組成物を得た。これを恒温槽内にて、30℃で貯蔵した。
表面がすり加工されたガラス型(直径約5cm、すり部長さ約15cm)を洗浄し、70℃のオーブン内で予備加熱した後、16質量%の硝酸カルシウム及び0.05質量%のポリオキシエチレンラウリルエーテル(花王(株)製エマルゲン109P)からなる凝固剤水溶液に5秒間浸漬し、取り出した。次いで、凝固剤で被覆されたガラス型を70℃のオーブン内で乾燥した。その後、凝固剤で被覆されたガラス型をオーブンから取り出し、上記ディップ成形用組成物に10秒間浸漬してから取り出し、室温で60分間乾燥した。フィルムで被覆された型をオーブン内に置き、25分間で50℃から60℃まで昇温して予備乾燥し、70℃のオーブン内に10分間置いて更に乾燥した。型を60℃の温水中に2分間浸漬した後、室温で10分間風乾した。その後、フィルムで被覆された型をオーブン内に置き、100℃で60分間加硫を行った。加硫されたフィルムで被覆された型を室温まで冷却し、タルクを散布した後、当該フィルムをガラス型から剥離した。得られたフィルムの引張強度を測定し、結果を表1に示す。
ディップ成形用組成物を30℃で貯蔵し、一日毎に、前記のディップ成形を行い、経時でディップ成形体を得た。得られたディップ成形体の引張強度を測定し、3日目に得られたディップ成形体の引張強度と、引張強度が最大となる日数およびその時の引張強度を表1に示す。
分散剤Aに代えて、スチレン−マレイン酸モノ−sec−ブチルエステル−マレイン酸モノメチルエステル重合体(Hercules社製:Scripset550;なお、マレイン酸モノ−sec−ブチルエステルとマレイン酸モノメチルエステルのモル比は、2:1である。)をアンモニア水を用いて100%中和して得られたアンモニウム塩水溶液を分散剤Bとして用い、その配合量を、合成イソプレンラテックスの固形分100質量部に対して、固形分換算で1質量部に相当する量に変更する以外は、実施例1と同様に行った。
分散剤Aに代えて、スチレン−無水マレイン酸重合体(藤井義通商(株)製:SMA−1000P)をアンモニア水を用いて100%中和して得られたアンモニウム塩水溶液を分散剤Cとして用いる以外は、実施例1と同様に行った。
分散剤Aを添加しない以外は、実施例1と同様に行った。
分散剤Aに代えて、スチレン−無水マレイン酸重合体(Hercules社製:Scripset520)をアンモニア水を用いて100%中和して得られたアンモニウム塩水溶液を分散剤Dとして用いる以外は、実施例1と同様に行った。
分散剤Aに代えて、ラウリル硫酸ナトリウム塩を用いる以外は、実施例1と同様に行った。
[分散剤A]:スチレン−マレイン酸モノ−n−ブチルエステル重合体のアンモニウム塩(荒川化学工業(株)製;アラスター703S)
スチレン−マレイン酸モノ−n−ブチルエステル重合体の重量平均分子量=13,800
[分散剤B]:スチレン−マレイン酸モノ−sec−ブチルエステル−マレイン酸モノメチルエステル重合体(Hercules社製:Scripset550)のアンモニウム塩
スチレン−マレイン酸モノ−sec−ブチルエステル−マレイン酸モノメチルエステル重合体の重量平均分子量=84,700
なお、マレイン酸モノ−sec−ブチルエステルとマレイン酸モノメチルエステルのモル比は、2:1である。
[分散剤C]:スチレン−無水マレイン酸重合体(藤井義通商(株)製:SMA−1000P)のアンモニウム塩
スチレン−無水マレイン酸重合体の重量平均分子量=5,900
[分散剤D]:スチレン−無水マレイン酸重合体(Hercules社製:Scripset520)のアンモニウム塩
スチレン−無水マレイン酸重合体の重量平均分子量=220,000
(分散剤の重量平均分子量の測定)
分散剤Aは、1質量%の塩酸水溶液中に滴下し、析出物をイオン交換水で十分に洗浄した後、乾燥して測定に供した。
Claims (10)
- 合成ポリイソプレンラテックス、硫黄系加硫剤、酸化亜鉛、加硫促進剤及び分散剤を含有するディップ成形用組成物であって、該分散剤が、重量平均分子量が1,000〜150,000であるオレフィン化合物−エチレン性不飽和ジカルボン酸重合体の塩および重量平均分子量が1,000〜150,000であるオレフィン化合物−エチレン性不飽和ジカルボン酸モノエステル重合体の塩のうち少なくとも一方であることを特徴とするディップ成形用組成物。
- 上記オレフィン化合物−エチレン性不飽和ジカルボン酸重合体の塩及びオレフィン化合物−エチレン性不飽和ジカルボン酸モノエステル重合体の塩のうち少なくとも一方を形成するオレフィン化合物がスチレンである請求項1に記載のディップ成形用組成物。
- 上記オレフィン化合物−エチレン性不飽和ジカルボン酸重合体の塩は、スチレン−マレイン酸重合体の塩である請求項1又は2に記載のディップ成形用組成物。
- 上記オレフィン化合物−エチレン性不飽和ジカルボン酸モノエステル重合体は、スチレン−マレイン酸モノエステル重合体の塩である請求項1〜3のいずれか1項に記載のディップ成形用組成物。
- 上記オレフィン化合物−エチレン性不飽和ジカルボン酸重合体の塩及びオレフィン化合物−エチレン性不飽和ジカルボン酸モノエステル重合体の塩のうち少なくとも一方は、アンモニウム塩である請求項1〜4のいずれか1項に記載のディップ成形用組成物。
- 上記分散剤の重量平均分子量が、5,900以上、84,700以下である請求項1〜5のいずれか1項に記載のディップ成形用組成物。
- 上記分散剤の量は、上記合成ポリイソプレンラテックス100質量部に対して、0.1〜10質量部である請求項1〜6のいずれか1項に記載のディップ成形用組成物。
- 上記合成ポリイソプレンラテックスを形成する合成ポリイソプレンはイソプレンの単独重合体である請求項1〜7のいずれか1項に記載のディップ成形用組成物。
- 上記合成ポリイソプレンラテックスは、有機溶媒に溶解した合成ポリイソプレン溶液を、界面活性剤の存在下に、水中で乳化して製造されたものである請求項1〜8のいずれか1項に記載のディップ成形用組成物。
- 請求項1〜9のいずれか1項に記載のディップ成形用組成物をディップ成形して得られるディップ成形体。
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US20160168366A1 (en) * | 2013-09-30 | 2016-06-16 | Zeon Corporation | Dip-forming composition and dip-forming article |
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JP2012062487A (ja) * | 2011-12-27 | 2012-03-29 | Nippon Zeon Co Ltd | ディップ成形用組成物およびディップ成形体 |
US9546239B2 (en) | 2013-02-22 | 2017-01-17 | Zeon Corporation | Latex for molding use, composition for dip molding use, and dip-molded article |
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WO2016088576A1 (ja) * | 2014-12-04 | 2016-06-09 | 日本ゼオン株式会社 | ディップ成形用合成ポリイソプレンラテックス、ディップ成形用組成物およびディップ成形体 |
JP6816728B2 (ja) * | 2016-02-03 | 2021-01-20 | 日本ゼオン株式会社 | 重合体ラテックスの製造方法 |
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MY198073A (en) * | 2019-11-07 | 2023-07-31 | Kossan Sdn Bhd | Polymeric/inorganic composite particle formulation and methods of producing rubber articles using said formulation |
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JP2009209229A (ja) * | 2008-03-03 | 2009-09-17 | Nippon Zeon Co Ltd | ディップ成形用組成物及び成形体 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20160168366A1 (en) * | 2013-09-30 | 2016-06-16 | Zeon Corporation | Dip-forming composition and dip-forming article |
US9637621B2 (en) * | 2013-09-30 | 2017-05-02 | Zeon Corporation | Dip-forming composition and dip-formed article |
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JPWO2010098008A1 (ja) | 2012-08-30 |
WO2010098008A1 (ja) | 2010-09-02 |
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