会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Vulcanized rubber composition
    • 硫化橡胶组合物
    • US5011888A
    • 1991-04-30
    • US449308
    • 1989-12-06
    • Fumio TsutsumiAkihiko MorikawaMitsuhiko SakakibaraNoboru OshimaTatsuro HamadaTatsuo FujimakiMasayuki Ohashi
    • Fumio TsutsumiAkihiko MorikawaMitsuhiko SakakibaraNoboru OshimaTatsuro HamadaTatsuo FujimakiMasayuki Ohashi
    • C08L9/06B60C1/00C08F297/04C08G18/69C08L21/00C08L53/00C08L53/02
    • C08L53/02B60C1/0016C08G18/69C08L21/00C08G2380/00
    • A rubber composition is disclosed which contains not less than 20% by weight in a rubber component of a block copolymer composed of polymer or copolymer block units (A) and a random copolymer block units (B). The polymer or copolymer block units (A) are obtained by singly polymerizing a conjugated diolefine or copolymerizing the conjugated diolefine and a monovinyl aromatic hydrocarbon with use of a lithium initiator and contains not more than 10% by weight of the bound monovinyl aromatic hydrocarbon. The random copolymer block unit (B) are obtained by copolymerizing the conjugated diolefine and the monovinyl aromatic hydrocarbon and contain 15 to 80% by weight of the bound monovinyl aromatic hydrocarbon. In the block copolymer, (i) the block copolymer contains not less than 10% by weight of each of the block units (A) and the block units (B); (ii) the total content of the bound monovinyl aromatic hydrocarbon is from 10 to 40% by weight; (iii) the average content of the vinyl bonds in the conjugated diolefine portions is from 20 to 70%; and (iv) polymerizable terminals of the block copolymer are reacted with an isocyanate compound.
    • 公开了在由聚合物或共聚物嵌段单元(A)和无规共聚物嵌段单元(B)组成的嵌段共聚物的橡胶组分中不少于20重量%的橡胶组合物。 聚合物或共聚物嵌段单元(A)是通过使共轭二烯烃单独聚合或使用锂引发剂共轭共轭二烯和单乙烯基芳族烃而得到的,并且含有不超过10重量%的结合的单乙烯基芳烃。 无规共聚物嵌段单元(B)通过使共轭二烯烃和单乙烯基芳族烃共聚而得到,并含有15〜80重量%的结合的单乙烯基芳烃。 在嵌段共聚物中,(i)嵌段共聚物含有不少于块单元(A)和嵌段单元(B)的10重量%。 (ii)结合的单乙烯基芳烃的总含量为10〜40重量% (iii)共轭二烯烃部分中的乙烯基键的平均含量为20〜70%。 和(iv)嵌段共聚物的可聚合端与异氰酸酯化合物反应。
    • 15. 发明授权
    • Rubber composition comprising a styrene-butadiene block copolymer having
two kinds of blocks
    • 包含具有两种嵌段的苯乙烯 - 丁二烯嵌段共聚物的橡胶组合物
    • US4782119A
    • 1988-11-01
    • US769923
    • 1985-08-27
    • Fumio TsutsumiAkio IakashimaMitsuhiko SakakibaraNoboru OshimaTatsuo FujimakiYoshiyuki Morimoto
    • Fumio TsutsumiAkio IakashimaMitsuhiko SakakibaraNoboru OshimaTatsuo FujimakiYoshiyuki Morimoto
    • C08L7/00B60C1/00C08F297/04C08L1/00C08L9/06C08L21/00C08L23/00C08L27/00C08L51/00C08L51/02C08L53/00C08L53/02C08L77/00C08L101/00
    • B60C1/0016C08F297/044Y10S525/914
    • A rubber composition containing at least 20% by weight of a styrene-butadiene block copolymer consisting of a block (A) and a block (B) characterized in that: (i) the block (A) is a styrene-butadiene copolymer block having the content of styrene of 10-80% by weight and the average content of the vinyl bonds in the butadiene portion of 30-70% by weight; (ii) the block (B) is a polybutadiene block with the average content of the vinyl bonds in the butadiene portion being not more than 60% by weight (iii) the styrene-butadiene block copolymer contains at least 20% by weight of each of the block (A) and the block (B); (iv) the average content of the vinyl bonds in the butadiene portion of the block (A) is greater by at least 5% by weight than that of the block (B); (v) the glass transition temperature of the block (A) is higher by at least 30.degree. C. than that of the block (B); (vi) the whole content of the bound styrene in the above block copolymer is 5-40% by weight; (vii) the ratio Mw/Mn between the weight average molecular weight Mw and the number average molecular weight Mn of the block copolymer is 1.8-5.0 when calculated as polystyrene according to the gel permeation chromatogram; and (viii) the Mooney's viscosity (ML.sub.1+4.sup.100.degree. C.) of the block copolymer is 20-150.
    • 一种含有至少20重量%由嵌段(A)和嵌段(B)组成的苯乙烯 - 丁二烯嵌段共聚物的橡胶组合物,其特征在于:(i)嵌段(A)是苯乙烯 - 丁二烯共聚物嵌段,其具有 苯乙烯含量为10-80重量%,丁二烯部分中乙烯基键的平均含量为30-70重量%; (ii)嵌段(B)是丁二烯部分中乙烯基键的平均含量不大于60重量%的聚丁二烯嵌段(iii)苯乙烯 - 丁二烯嵌段共聚物含有至少20重量% (A)和块(B); (iv)嵌段(A)的丁二烯部分中的乙烯基键的平均含量比块(B)的平均含量高至少5重量%。 (v)嵌段(A)的玻璃化转变温度比嵌段(B)的玻璃化转变温度高至少30℃; (vi)上述嵌段共聚物中的结合苯乙烯的全部含量为5-40重量% (vii)根据凝胶渗透色谱法计算,当以聚苯乙烯计算时,嵌段共聚物的重均分子量Mw与数均分子量Mn之比Mw / Mn为1.8-5.0; 和(viii)嵌段共聚物的门尼粘度(ML1 + 4100℃)为20-150℃。