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公开(公告)号：US20150291774A1
公开(公告)日：2015-10-15
申请号：US14405220
申请日：2012-06-04
申请人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
发明人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
IPC分类号： C08K5/36 , C08K5/3492 , C08K5/14
CPC分类号： C08K5/36 , C08K5/0025 , C08K5/13 , C08K5/14 , C08K5/16 , C08K5/34924 , C08L23/08
摘要： Disclosed in the present invention is a crosslinked polyethylene composition having improved processability comprises: 100 parts by weight of polyethylene, 0.03-5 parts by weight of crosslinking agent, 0.03-5 parts by weight of crosslinking promoter, and 0.01-1.5 parts by weight of free radical inhibitor, wherein the polyethylene is a copolymer and/or homopolymer containing at least 90 wt. % of vinyl and at least one C3-C8 α-alkenyl, and has a density in the range of 0.920-0.970 g/cm3, a melt index in the range of 2.5-17.5 g/10 min; the crosslinking agent is a peroxide crosslinking agent; the crosslinking promoter is an organic substance containing maleimido, (meth)acrylate group, and/or allyl, and/or a polymer containing more than 50% of vinyl; the free radical inhibitor is an organic antioxidant, a quinhydrone and/or a substituted quinhydrone. The crosslinked polyethylene composition of the present invention has a crosslinking efficiency index of more than 1,100 Nm/g and a δ torque value of more than 10 Nm at the temperature of 200° C., a significantly higher safety process temperature and a significantly improved crosslinking retardation time compared to the conventional crosslinked polyethylene composition, which make it especially be suitable for the production of rotational molding articles.
摘要翻译： 在本发明中公开的是具有改进的加工性的交联聚乙烯组合物，包括：100重量份的聚乙烯，0.03-5重量份的交联剂，0.03-5重量份的交联促进剂和0.01-1.5重量份的 自由基抑制剂，其中聚乙烯是共聚物和/或均聚物，其含有至少90wt。 ％的乙烯基和至少一个C 3 -C 8α-烯基，其密度在0.920-0.970g / cm 3范围内，熔体指数在2.5-17.5g / 10min的范围内; 交联剂是过氧化物交联剂; 交联促进剂是含有马来酰亚胺基，（甲基）丙烯酸酯基和/或烯丙基的有机物，和/或含有50％以上乙烯基的聚合物; 自由基抑制剂是有机抗氧化剂，醌氢醌和/或取代的氢醌。 本发明的交联聚乙烯组合物在200℃的温度下具有大于1100Nm 3 / g的交联效率指数和大于10Nm的δ扭矩值，显着更高的安全性工艺温度和明显改善的交联 延迟时间与传统的交联聚乙烯组合物相比，特别适用于生产旋转模塑制品。
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公开(公告)号：US20150232586A1
公开(公告)日：2015-08-20
申请号：US14407352
申请日：2012-06-13
申请人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
发明人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
IPC分类号： C08F10/02
摘要： A crosslinked polyethylene composition comprising 100 parts by weight of polyethylene, 0.05-5 parts by weight of crosslinking agent, 0.03-3 parts by weight of crosslinking aid. Polyethylene is a copolymer, homopolymer and/or a mixture thereof. The crosslinking agent is an organic peroxide having a half-life period longer than 3 minutes at 190° C. and/or a multi-membered heterocyclic alkane consisting of 3 to 6 carbon atoms and 3 to 6 oxygen atoms and/or a derivative thereof. The crosslinking aid is an organic substance containing allyl, maleimido, (meth)acrylate group and/or a polymer having a vinyl content higher than 50%. Preferably, the crosslinking aid is triallyl isocyanate (TAIC), triallyl cyanurate (TAC) or a mixture thereof. The crosslinked polyethylene composition has a crosslinking efficiency index >1000 Nm/g and a δ torque value >15 Nm at 220° C., and has a high safe processing temperature and long crosslinking delay, and therefore is particularly suitable for rotationally molded products.
摘要翻译： 交联聚乙烯组合物，其包含100重量份的聚乙烯，0.05-5重量份的交联剂，0.03-3重量份的交联助剂。 聚乙烯是共聚物，均聚物和/或其混合物。 交联剂是在190℃下半衰期长于3分钟的有机过氧化物和/或由3至6个碳原子和3至6个氧原子组成的多元杂环烷烃和/或其衍生物 。 交联助剂是含有烯丙基，马来酰亚胺基，（甲基）丙烯酸酯基和/或乙烯基含量高于50％的聚合物的有机物质。 优选地，交联助剂是异氰酸三烯丙酯（TAIC），氰尿酸三烯丙酯（TAC）或其混合物。 交联聚乙烯组合物在220℃下的交联效率指数> 1000Nm 3 / g，δ扭矩值> 15Nm，具有高安全的加工温度和较长的交联延迟，因此特别适用于旋转成型产品。
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公开(公告)号：US09617356B2
公开(公告)日：2017-04-11
申请号：US14407352
申请日：2012-06-13
申请人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
发明人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
IPC分类号： C08F10/02
摘要： A crosslinked polyethylene composition comprising 100 parts by weight of polyethylene, 0.05-5 parts by weight of crosslinking agent, 0.03-3 parts by weight of crosslinking aid. Polyethylene is a copolymer, homopolymer and/or a mixture thereof. The crosslinking agent is an organic peroxide having a half-life period longer than 3 minutes at 190° C. and/or a multi-membered heterocyclic alkane consisting of 3 to 6 carbon atoms and 3 to 6 oxygen atoms and/or a derivative thereof. The crosslinking aid is an organic substance containing allyl, maleimido, (meth)acrylate group and/or a polymer having a vinyl content higher than 50%. Preferably, the crosslinking aid is triallyl isocyanate (TAIC), triallyl cyanurate (TAC) or a mixture thereof. The crosslinked polyethylene composition has a crosslinking efficiency index >1000 Nm/g and a δ torque value >15 Nm at 220° C., and has a high safe processing temperature and long crosslinking delay, and therefore is particularly suitable for rotationally molded products.
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公开(公告)号：US09388296B2
公开(公告)日：2016-07-12
申请号：US14405220
申请日：2012-06-04
申请人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
发明人： Xuelian Chen , Wenbin Liang , Yanhua Niu , Shih-yaw Lai
CPC分类号： C08K5/36 , C08K5/0025 , C08K5/13 , C08K5/14 , C08K5/16 , C08K5/34924 , C08L23/08
摘要： Disclosed in the present invention is a crosslinked polyethylene composition having improved processability comprises: 100 parts by weight of polyethylene, 0.03-5 parts by weight of crosslinking agent, 0.03-5 parts by weight of crosslinking promoter, and 0.01-1.5 parts by weight of free radical inhibitor, wherein the polyethylene is a copolymer and/or homopolymer containing at least 90 wt. % of vinyl and at least one C3-C8 α-alkenyl, and has a density in the range of 0.920-0.970 g/cm3, a melt index in the range of 2.5-17.5 g/10 min; the crosslinking agent is a peroxide crosslinking agent; the crosslinking promoter is an organic substance containing maleimido, (meth)acrylate group, and/or allyl, and/or a polymer containing more than 50% of vinyl; the free radical inhibitor is an organic antioxidant, a quinhydrone and/or a substituted quinhydrone. The crosslinked polyethylene composition of the present invention has a crosslinking efficiency index of more than 1,100 Nm/g and a δ torque value of more than 10 Nm at the temperature of 200° C., a significantly higher safety process temperature and a significantly improved crosslinking retardation time compared to the conventional crosslinked polyethylene composition, which make it especially be suitable for the production of rotational molding articles.
摘要翻译： 在本发明中公开的是具有改进的加工性的交联聚乙烯组合物，包括：100重量份的聚乙烯，0.03-5重量份的交联剂，0.03-5重量份的交联促进剂和0.01-1.5重量份的 自由基抑制剂，其中聚乙烯是共聚物和/或均聚物，其含有至少90wt。 ％的乙烯基和至少一个C 3 -C 8α-烯基，其密度在0.920-0.970g / cm 3范围内，熔体指数在2.5-17.5g / 10min的范围内; 交联剂是过氧化物交联剂; 交联促进剂是含有马来酰亚胺基，（甲基）丙烯酸酯基和/或烯丙基的有机物，和/或含有50％以上乙烯基的聚合物; 自由基抑制剂是有机抗氧化剂，醌氢醌和/或取代的氢醌。 本发明的交联聚乙烯组合物在200℃的温度下具有大于1100Nm 3 / g的交联效率指数和大于10Nm的δ扭矩值，显着更高的安全性工艺温度和明显改善的交联 延迟时间与传统的交联聚乙烯组合物相比，特别适用于生产旋转模塑制品。
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