公开(公告)号：US20160122501A1

公开(公告)日：2016-05-05

申请号：US14779989

申请日：2014-03-20

Applicant: ETIC INC. ,  NIPPON A&L INC.

Inventor： Iwakazu Hattori ,  Hisao Ono ,  Kimio Misaki ,  Hiroshi Miwata

IPC: C08K3/36 ,  B60C1/00

CPC classification number: C08K3/36 ,  B29B7/183 ,  B29B7/7495 ,  B60C1/00 ,  B60C1/0016 ,  C08C1/14 ,  C08J3/215 ,  C08J2309/06 ,  C08L15/00 ,  C08L15/02

Abstract: Provided are: a rubber composition (a silica master batch) that contains silica in a highly dispersed state, which is prepared by mixing a suspension with an emulsion of an emulsion-polymerized conjugated diene polymer and then coagulating the resultant mixture, wherein the suspension is prepared by highly dispersing wet silica, which does not undergo secondary coagulation yet, or silica, which is prepared by mechanically dissociating secondary coagulation masses of silica, in water and the emulsion-polymerized conjugated diene polymer contains a functional group that is reactive with silica or has high affinity for silica; and a method for producing the rubber composition. A clam (a small mass of a rubber) which contains silica in a highly dispersed state is hardly dried. Therefore, the clam is dried in an apparatus which is composed of a drying apparatus composed of a dehydrator and a hot-air drier and a heating roll for drying purposes provided to the drying apparatus, whereby a rubber composition in which silica is highly dispersed and which has high reinforcing performance can be produced. As a method for mixing the emulsion of the emulsion-polymerized conjugated diene copolymer with the silica suspension, a mere agitating/mixing procedure can be employed, and a process of mixing the components homogenously while applying a stimulus such as heat or pressure to the mixture of the components using a steam ejector to cause the coagulation of the components can also be employed desirably.

Abstract translation: 提供：含有高分散状态的二氧化硅的橡胶组合物（二氧化硅母料），其通过将悬浮液与乳液聚合的共轭二烯聚合物的乳液混合，然后使所得混合物凝结而制备，其中悬浮液为 通过在水中高效分散不经二次凝结的湿法二氧化硅或通过机械解离二氧化硅的二次凝结物质而制备的二氧化硅，并且乳液聚合的共轭二烯聚合物含有与二氧化硅或二氧化硅反应的官能团 对二氧化硅具有高亲和力; 和橡胶组合物的制造方法。 含有高分散状态的二氧化硅的蛤蜊（小质量的橡胶）几乎不干燥。 因此，在由干燥装置和热风干燥机构成的干燥装置和用于干燥装置的干燥用的加热辊构成的装置中干燥蛤蜊，由此将二氧化硅高分散的橡胶组合物和 可以制造具有高增强性能的材料。 作为用于将乳液聚合的共轭二烯共聚物的乳液与二氧化硅悬浮液混合的方法，可以仅使用搅拌/混合程序，并且在混合物中施加诸如热或压力的刺激物同时混合组分的方法 的使用蒸汽喷射器的组分以引起组分的凝结也可以期望地使用。

公开(公告)号：US20180273650A1

公开(公告)日：2018-09-27

申请号：US15760703

申请日：2015-09-18

Applicant: ETIC Inc.

Inventor： Iwakazu Hattori ,  Hisao Ono

IPC: C08C19/25 ,  C08F236/10 ,  C08K3/36 ,  C08K3/04

CPC classification number: C08C19/25 ,  C08C2/06 ,  C08F8/12 ,  C08F8/42 ,  C08F236/10 ,  C08K3/04 ,  C08K3/36 ,  C08L15/00

Abstract: Studies have been made for the purpose of achieving both the improvement in the storage stability of a solution-polymerized diene rubber that is modified with an alkoxysilane compound and the improvement in the physical properties of the diene rubber when blended with silica. Thus, a production method whereby it becomes possible to produce a modified solution-polymerized diene rubber having good storage stability and high reactivity with silica is developed, by introducing several tens percent of a three blanched or four blanched component that has been coupled with a tin compound into a modified solution-polymerized diene rubber, then coagulating the resultant alkoxysilane modified diene rubber with steam and then drying the coagulated product. In addition, the physical properties of the rubber are further improved successfully by introducing a highly reactive structure to a polymerization initiation terminal of the rubber in the polymerization of the rubber using an alkyl lithium as a polymerization initiator.

公开(公告)号：US10428161B2

公开(公告)日：2019-10-01

申请号：US15760703

申请日：2015-09-18

Applicant: ETIC Inc.

Inventor： Iwakazu Hattori ,  Hisao Ono

IPC: C08F8/42 ,  C08C2/06 ,  C08F8/12 ,  C08K3/04 ,  C08K3/36 ,  C08L15/00 ,  C08C19/25 ,  C08F236/10

Abstract: Studies have been made for the purpose of achieving both the improvement in the storage stability of a solution-polymerized diene rubber that is modified with an alkoxysilane compound and the improvement in the physical properties of the diene rubber when blended with silica. Thus, a production method whereby it becomes possible to produce a modified solution-polymerized diene rubber having good storage stability and high reactivity with silica is developed, by introducing several tens percent of a three blanched or four blanched component that has been coupled with a tin compound into a modified solution-polymerized diene rubber, then coagulating the resultant alkoxysilane modified diene rubber with steam and then drying the coagulated product. In addition, the physical properties of the rubber are further improved successfully by introducing a highly reactive structure to a polymerization initiation terminal of the rubber in the polymerization of the rubber using an alkyl lithium as a polymerization initiator.