公开(公告)号：US20120121907A1

公开(公告)日：2012-05-17

申请号：US13355647

申请日：2012-01-23

Applicant: Toshiaki MASUDA ,  Ichiro TAKAHARA ,  Kenichi KITANO ,  Katsushi MIKI ,  Takeshi INOHARA ,  Takayuki AOKI

Inventor： Toshiaki MASUDA ,  Ichiro TAKAHARA ,  Kenichi KITANO ,  Katsushi MIKI ,  Takeshi INOHARA ,  Takayuki AOKI

IPC: B32B1/00 ,  B32B5/16

CPC classification number: B01J13/20 ,  B29C44/3461 ,  C08J9/143 ,  C08J9/32 ,  C08J2333/18 ,  Y10T428/2982 ,  Y10T428/2984 ,  Y10T428/2985 ,  Y10T428/2991 ,  Y10T428/2998

Abstract: The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70.

Abstract translation: 本发明提供具有高填充效率的热膨胀微球及其制造方法。 热膨胀微球体是通过膨胀包含热塑性树脂壳和封装在其中的沸点不高于热塑性树脂的软化点的发泡剂的热膨胀性微球而制成的，平均粒径为1〜100 微米，其温度不低于其膨胀起始温度，热膨胀微球导致不高于0.70的空隙率。

公开(公告)号：US20120080131A1

公开(公告)日：2012-04-05

申请号：US13301256

申请日：2011-11-21

Applicant: Hiroyuki TERATANI ,  Toshiaki MASUDA ,  Kenichi KITANO ,  Katsushi MIKI ,  Takayuki AOKI ,  Takeshi INOHARA

Inventor： Hiroyuki TERATANI ,  Toshiaki MASUDA ,  Kenichi KITANO ,  Katsushi MIKI ,  Takayuki AOKI ,  Takeshi INOHARA

IPC: B60C17/04

CPC classification number: B01J13/14 ,  B01J13/04 ,  B60C17/01 ,  B60C17/066 ,  B60C29/062 ,  C08J9/146 ,  C08J9/20

Abstract: In heat-expandable microspheres as a starting material for hollow fine particles, which have excellent performances required for giving not only a durability in steady running region but also a durability in high-speed running region to a tire-rim assembly, and each consisting of an outer shell made of a thermoplastic resin obtained by polymerizing a monomer component in the presence of a polymerization initiator, and a foaming agent encapsulated in the outer shell and having a boiling point not higher than a softening point of the thermoplastic resin, the polymerization initiator comprises a peroxydicarbonate as an essential component, and the foaming agent comprises a fluorine-containing compound having an ether structure and a carbon number of 2-10 and containing no chlorine atom and bromine atom.

Abstract translation: 在作为中空微粒的原料的热膨胀性微球中，其具有优异的性能，其不仅在稳定运行区域中不仅具有耐久性，而且在高速运行区域中对轮胎 - 轮辋组件的耐久性，并且各自由 由在聚合引发剂存在下聚合单体成分而获得的热塑性树脂制成的外壳和封装在外壳中并且沸点不高于热塑性树脂的软化点的发泡剂，聚合引发剂 以过氧化二碳酸酯为必须成分，发泡剂含有具有醚结构，碳数为2-10且不含氯原子和溴原子的含氟化合物。

公开(公告)号：US08486531B2

公开(公告)日：2013-07-16

申请号：US13355647

申请日：2012-01-23

Applicant: Toshiaki Masuda ,  Ichiro Takahara ,  Kenichi Kitano ,  Katsushi Miki ,  Takeshi Inohara ,  Takayuki Aoki

Inventor： Toshiaki Masuda ,  Ichiro Takahara ,  Kenichi Kitano ,  Katsushi Miki ,  Takeshi Inohara ,  Takayuki Aoki

IPC: B32B1/00 ,  B32B5/16 ,  C08J9/22 ,  C08J9/00

CPC classification number: B01J13/20 ,  B29C44/3461 ,  C08J9/143 ,  C08J9/32 ,  C08J2333/18 ,  Y10T428/2982 ,  Y10T428/2984 ,  Y10T428/2985 ,  Y10T428/2991 ,  Y10T428/2998

Abstract: The present invention provides heat-expanded microspheres having high packing efficiency, and a production method thereof. The heat-expanded microspheres are produced by expanding heat-expandable microspheres, which comprise shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin and have an average particle size from 1 to 100 micrometer, at a temperature not lower than their expansion initiating temperature, and the heat-expanded microspheres result in a void fraction not higher than 0.70.

Abstract translation: 本发明提供具有高填充效率的热膨胀微球及其制造方法。 热膨胀微球体是通过膨胀包含热塑性树脂壳和封装在其中的沸点不高于热塑性树脂的软化点的发泡剂的热膨胀性微球而制成的，平均粒径为1〜100 微米，其温度不低于其膨胀起始温度，热膨胀微球导致不高于0.70的空隙率。

公开(公告)号：US20100288406A1

公开(公告)日：2010-11-18

申请号：US12810774

申请日：2009-02-13

Applicant: Takamasa Kitamura ,  Shigeki Ito ,  Kenichi Kitano ,  Takeshi Inohara

Inventor： Takamasa Kitamura ,  Shigeki Ito ,  Kenichi Kitano ,  Takeshi Inohara

IPC: B60C11/00

CPC classification number: C08L7/00 ,  B60C1/0016 ,  B60C11/14 ,  B60C2011/0025 ,  C08J9/32 ,  C08J2203/22 ,  C08J2307/00 ,  C08J2309/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/548 ,  C08K7/22 ,  C08K9/10 ,  C08L9/00 ,  C08L21/00 ,  C08L2666/08

Abstract: Provided is a pneumatic tire whose frictional force on ice is improved by satisfactorily forming resin-encapsulated cells from heat-expandable microcapsules, even when a tread rubber contains silica. The tire is characterized in that: the tread rubber is made of a rubber composition containing 100 parts by weight of a diene rubber, 30 to 100 parts by weight of a reinforcing filler including at least 10 parts by weight of silica, and 1 to 20 parts by weight of microcapsules each encapsulating a heat-expandable substance; a sulfur-containing silane coupling agent is mixed in the rubber composition in an amount of 3 to 15 wt. % based on the weight of the silica; a shell material of each microcapsule is made of a thermoplastic resin which essentially contains a nitrile monomer (I); a vapor pressure of the heat-expandable substance is set at 1.4 to 3.0 MPa at 150° C.; an average particle diameter of the microcapsules is set at 20 to 30 μm before vulcanization of the rubber composition; an average particle diameter of the microcapsules expanded due to the vulcanization is set at 40 to 80 μm; and thus, a proportion of an area occupied by the cells in the tread rubber is set at 5 to 30%.

Abstract translation: 本发明提供一种充气轮胎，即使在胎面橡胶含有二氧化硅的情况下，也可以通过令人满意地形成来自热膨胀性微胶囊的树脂封装的细胞来提高冰上的摩擦力。 轮胎的特征在于：胎面橡胶由含有100重量份二烯橡胶的橡胶组合物制成，30至100重量份的包含至少10重量份二氧化硅的增强填料和1至20重量份 每个包封热膨胀物质的微胶囊重量份; 将含硫硅烷偶联剂在橡胶组合物中以3〜15重量％的量混合。 基于二氧化硅的重量％ 每个微胶囊的壳材料由基本上含有腈单体（I）的热塑性树脂制成; 在150℃下将热膨胀性物质的蒸气压设定为1.4〜3.0MPa。 在橡胶组合物硫化之前，将微胶囊的平均粒径设定为20〜30μm。 将由于硫化而膨胀的微胶囊的平均粒径设定为40〜80μm， 因此胎面胶中的细胞所占的面积的比例为5〜30％。