JP6510259B2 - パンクシーリング剤 - Google Patents
パンクシーリング剤 Download PDFInfo
- Publication number
- JP6510259B2 JP6510259B2 JP2015026662A JP2015026662A JP6510259B2 JP 6510259 B2 JP6510259 B2 JP 6510259B2 JP 2015026662 A JP2015026662 A JP 2015026662A JP 2015026662 A JP2015026662 A JP 2015026662A JP 6510259 B2 JP6510259 B2 JP 6510259B2
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- Prior art keywords
- antioxidant
- mass
- puncture
- natural rubber
- tert
- Prior art date
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Description
モノフェノール系酸化防止剤:ノクラック200、大内新興化学工業株式会社製
ビスフェノール系酸化防止剤:ノクラックNS−6、大内新興化学工業株式会社製
ポリフェノール系酸化防止剤:ノクラックNS−7、大内新興化学工業株式会社製
アミン系酸化防止剤:ノクラックCD、大内新興化学工業株式会社製
界面活性剤:ブルタモル、BASF社製
天然ゴムラテックス:HAラテックス、Unimac Rubber社製、固形分61質量%(天然ゴムの重量平均分子量120万)
粘着付与剤:ナノレット、ヤスハラケミカル株式会社製、固形分50%(水分散体)
不凍液:1,3−プロパンジオール、Dupont社製
酸化防止剤40g、水58gおよび界面活性剤2gをボールミルで粉砕処理し、40質量%の酸化防止剤分散体を作製した。天然ゴムラテックスの固形分100質量部に対して、粘着付与剤50質量部、不凍液140質量部からなるパンクシーリング剤100質量部に酸化防止分散体を表1に記載の添加量になるよう添加し、酸化防止剤を含むパンクシーリング剤を作製した。なお、酸化防止剤量は、ゴム固形分100質量部に対する値とした。
タイヤサイズ195/65R15のタイヤに、直径4mmの釘で穴を開け、釘を抜いた後、400mlのパンクシーリング剤を注入し、エアーを250kPaまで昇圧した。その後、荷重(3.5kN)にて、40km/hで10分間走行した後、パンク穴が塞がったか否かを○×の2段階で評価した。結果を表1に示す。
GPCにて、パンクシーリング剤に含まれるゴム分子の重量平均分子量を測定した。結果を表1に示す。
Claims (5)
- 天然ゴムラテックスおよび酸化防止剤を含むパンクシーリング剤であって、
前記パンクシーリング剤の全質量100質量%に対する凍結防止剤の配合量が32〜65質量%であり、
前記凍結防止剤は、1,3−プロパンジオール、エチレングリコール及びプロピレングリコールからなる群より選択される少なくとも1種であるパンクシーリング剤。 - 酸化防止剤が、天然ゴムラテックス中に分散されている請求項1に記載のパンクシーリング剤。
- 酸化防止剤が、界面活性剤とともに天然ゴムラテックス中に分散されている請求項2に記載のパンクシーリング剤。
- 酸化防止剤が、モノフェノール系酸化防止剤、ビスフェノール系酸化防止剤、ポリフェノール系酸化防止剤およびアミン系酸化防止剤から選択される少なくとも1種である請求項1〜3のいずれか1項に記載のパンクシーリング剤。
- 酸化防止剤が、ポリフェノール系酸化防止剤である請求項4に記載のパンクシーリング剤。
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US11732113B2 (en) * | 2020-11-18 | 2023-08-22 | Sumitomo Rubber Industries, Ltd. | Puncture sealant |
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JPS53138111A (en) * | 1977-05-10 | 1978-12-02 | Yokohama Rubber Co Ltd:The | Component of sealing puncture |
US5295525A (en) * | 1992-06-22 | 1994-03-22 | Michelin Recherche Et Technique S.A. | Puncture sealant formulation |
JP3751729B2 (ja) * | 1996-12-04 | 2006-03-01 | 住友ゴム工業株式会社 | パンクシーリング剤 |
DE19844177B4 (de) * | 1998-09-25 | 2004-02-19 | Continental Aktiengesellschaft | Mittel zum provisorischen Abdichten von Fahrzeugluftreifen und seine Verwendung |
JP2001198986A (ja) * | 2000-01-17 | 2001-07-24 | Sumitomo Rubber Ind Ltd | タイヤのパンクシーリング剤 |
JP4525839B1 (ja) * | 2009-06-22 | 2010-08-18 | 横浜ゴム株式会社 | タイヤパンクシール材 |
JP4609598B1 (ja) * | 2009-06-22 | 2011-01-12 | 横浜ゴム株式会社 | タイヤパンクシール材 |
ITTO20101031A1 (it) * | 2010-12-21 | 2012-06-22 | Tek Global Srl | Composizione sigillante per la riparazione di pneumatici |
JP2012172115A (ja) * | 2011-02-23 | 2012-09-10 | Bridgestone Corp | パンクシーリング剤 |
JP2013227428A (ja) * | 2012-04-25 | 2013-11-07 | Bridgestone Corp | パンクシーリング剤の固形化方法 |
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