公开(公告)号：US07790799B2

公开(公告)日：2010-09-07

申请号：US11891399

申请日：2007-08-10

Applicant: Howard Allen Colvin ,  Sun Lin Chen

Inventor： Howard Allen Colvin ,  Sun Lin Chen

IPC: B60C1/00 ,  C08K3/34 ,  C08K3/04 ,  C08K9/00

CPC classification number: B60C1/0016 ,  C08K3/36 ,  Y02T10/862 ,  Y10T152/10513 ,  C08L21/00

Abstract: This invention is based upon the discovery that elongated silica has superior characteristics for reinforcing rubbery elastomers as compared to conventional silica. More specifically, elongated silica provides a higher level of reinforcement for elastomers at the same level of loading. Accordingly, elongated silica can be employed to attain an equivalent level of reinforcement at a lower level of loading. This results in lower weight compositions and potential cost savings. Rubber compounds that are reinforced with elongated silica offer significant advantages in tires including reduced rolling resistance, increased tread life, and, of course, reduced weight. The subject invention more specifically relates to a tire having a tread wherein said tread is comprised of a silica reinforced rubber composition, wherein the silica reinforced rubber composition is comprised of (1) a rubbery polymer and (2) an elongated silica, wherein the elongated silica has a width that is within the range of about 5 nm to about 40 nm, and wherein the elongated silica has a length of about 40 nm to about 300 nm. The present invention also discloses a process for preparing a silica reinforced rubber composition which comprises (1) adding an elongated silica to a latex of a rubbery polymer, and (2) recovering the silica reinforced rubber composition from the latex.

Abstract translation: 本发明基于以下发现：与常规二氧化硅相比，细长二氧化硅具有用于增强橡胶弹性体的优异特性。 更具体地说，细长二氧化硅在相同的加载水平下为弹性体提供了更高水平的增强。 因此，可以使用细长的二氧化硅以在较低的负载水平下获得相当的钢筋水平。 这导致较低的重量组成和潜在的成本节省。 用细长二氧化硅增强的橡胶化合物在轮胎中具有显着的优点，包括降低的滚动阻力，增加的胎面寿命，当然减轻重量。 本发明更具体地涉及一种具有胎面的轮胎，其中所述胎面由二氧化硅增强橡胶组合物组成，其中所述二氧化硅增强橡胶组合物包括（1）橡胶状聚合物和（2）细长二氧化硅，其中所述细长的 二氧化硅具有在约5nm至约40nm的范围内的宽度，并且其中所述细长二氧化硅具有约40nm至约300nm的长度。 本发明还公开了一种制备二氧化硅增强橡胶组合物的方法，其包括（1）将细长二氧化硅加入到橡胶状聚合物的胶乳中，和（2）从胶乳中回收二氧化硅增强的橡胶组合物。

公开(公告)号：US07276550B2

公开(公告)日：2007-10-02

申请号：US10021200

申请日：2001-12-07

Applicant: Howard Allen Colvin ,  Sun Lin Chen

Inventor： Howard Allen Colvin ,  Sun Lin Chen

IPC: C08K3/26 ,  B60C1/00

CPC classification number: B60C1/0016 ,  C08K3/36 ,  Y02T10/862 ,  Y10T152/10513 ,  C08L21/00

Abstract: This invention is based upon the discovery that elongated silica has superior characteristics for reinforcing rubbery elastomers as compared to conventional silica. More specifically, elongated silica provides a higher level of reinforcement for elastomers at the same level of loading. Accordingly, elongated silica can be employed to attain an equivalent level of reinforcement at a lower level of loading. This results in lower weight compositions and potential cost savings. Rubber compounds that are reinforced with elongated silica offer significant advantages in tires including reduced rolling resistance, increased tread life, and, of course, reduced weight. The subject invention more specifically relates to a silica reinforced rubber composition which is comprised of (1) a rubbery polymer and (2) an elongated silica, wherein the elongated silica has a width that is within the range of about 5 nm to about 40 nm and wherein the elongated silica has a length of about 40 nm to about 300 nm. The present invention also discloses a process for preparing a silica reinforced rubber composition which comprises (1) adding an elongated silica to a latex of a rubbery polymer, and (2) recovering the silica reinforced rubber composition from the latex.

Abstract translation: 本发明基于以下发现：与常规二氧化硅相比，细长二氧化硅具有用于增强橡胶弹性体的优异特性。 更具体地说，细长二氧化硅在相同的加载水平下为弹性体提供了更高水平的增强。 因此，可以使用细长的二氧化硅以在较低的负载水平下获得相当的钢筋水平。 这导致较低的重量组成和潜在的成本节省。 用细长二氧化硅增强的橡胶化合物在轮胎中具有显着的优点，包括降低的滚动阻力，增加的胎面寿命，当然减轻重量。 本发明更具体地涉及二氧化硅增强橡胶组合物，其由（1）橡胶状聚合物和（2）细长二氧化硅组成，其中细长二氧化硅的宽度在约5nm至约40nm的范围内 并且其中所述细长二氧化硅具有约40nm至约300nm的长度。 本发明还公开了一种制备二氧化硅增强橡胶组合物的方法，其包括（1）将细长二氧化硅加入到橡胶状聚合物的胶乳中，和（2）从胶乳中回收二氧化硅增强的橡胶组合物。