专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20200332089A1 TIRE RUBBER COMPOSITIONS 审中-公开
公开(公告)号：US20200332089A1
公开(公告)日：2020-10-22
申请号：US16643128
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Hiroshi KANBARA , Daisuke KODA
IPC分类号： C08L7/00 , C08L9/06 , B60C15/06 , B60C1/00
摘要： The tire rubber composition includes 100 parts by mass of a solid rubber (A) having a glass transition temperature (Tg) of not more than −10° C., 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) to (iv): (i) the weight average molecular weight (Mw) is 15,000 to 120,000, (ii) the vinyl content is not more than 70 mol %, (iii) the average number of the functional groups per molecule of the modified liquid diene rubber (B) is 1 to 30, and (iv) the glass transition temperature (Tg) is not more than 0° C.

2. 发明申请

US20200254816A1 HEAVY-DUTY TIRE RUBBER COMPOSITIONS AND TIRES 审中-公开
公开(公告)号：US20200254816A1
公开(公告)日：2020-08-13
申请号：US16643160
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Daisuke KODA , Hiroshi KANBARA
IPC分类号： B60C1/00 , B60C15/06 , C08L7/00 , C08L25/10 , C08F236/06 , C08F236/08 , C08F230/08 , C08K3/04 , C08K3/36
摘要： The invention provides a heavy-duty tire rubber composition excellent in wet grip performance and steering stability, and a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is not less than 30 mol % and less than 70 mol %.

3. 发明申请

US20220289872A1 CONJUGATED DIENE GRAFT POLYMER AND METHOD FOR PRODUCING THE SAME 有权
公开(公告)号：US20220289872A1
公开(公告)日：2022-09-15
申请号：US17761384
申请日：2020-09-18
申请人： KURARAY CO., LTD.
发明人： Yoshikazu UENO , Hiroshi KANBARA , Atsushi INATOMI , Junya TAKAI , Zhaoming MA
IPC分类号： C08C19/25 , C08C19/26 , C08C19/00 , C08L15/00
摘要： To provide a conjugated diene graft polymer having high transparency, heat resistance and weather resistance, and a method for producing the conjugated diene graft polymer. A method for producing a conjugated diene graft polymer in which a side chain (b) including a polymer including at least one monomer unit selected from the group consisting of a conjugated diene unit and an aromatic vinyl compound unit is bonded to a main chain (a) including a polymer including a conjugated diene unit, via a hetero atom Z serving as a branching point and having a valence of not less than 3, the method including a step of reacting a specific active end polymer and a specific functional group-modified conjugated diene polymer having a functional group in a side chain to thereby produce a conjugated diene graft polymer; and a step of recovering the conjugated diene graft polymer obtained.

4. 发明申请

US20210246299A1 RUBBER COMPOSITION AND TIRE THEREWITH 有权
公开(公告)号：US20210246299A1
公开(公告)日：2021-08-12
申请号：US16972849
申请日：2019-06-07
申请人： KURARAY CO., LTD.
发明人： Yusuke AMANO , Eiichi ISHIDA , Kazuhiko MAEKAWA , Daisuke KODA , Hiroshi KANBARA
IPC分类号： C08L51/04 , C08L51/06 , C08L29/04 , C08L23/08 , C08L23/22 , C08F236/06 , C08F236/08 , C08K3/04 , C08K3/36 , C08K5/54 , C08L9/06 , C08L7/00 , C08L91/00 , B60C1/00
摘要： The present invention provides a rubber composition having superior moldability, wear resistance, and grip performance, and tires therewith. The present invention relates to a rubber composition comprising: a copolymer (B) constituted of a vinyl alcohol polymer (B-1) region and a diene polymer (B-2) region; and a rubber component (C), wherein the rubber composition comprises 1 to 20 parts by mass of the copolymer (B) relative to 100 parts by mass of the rubber component (C).

5. 发明申请

US20190194429A1 RUBBER COMPOSITIONS 审中-公开
公开(公告)号：US20190194429A1
公开(公告)日：2019-06-27
申请号：US16329975
申请日：2017-09-01
申请人： KURARAY CO., LTD.
发明人： Hiromi MAEDA , Daisuke KODA , Hiroshi KANBARA , Satomi OHTA
IPC分类号： C08L9/06 , C08L15/00 , C08K3/013 , C08K3/04 , C08K3/36 , B60C1/00
CPC分类号： C08L9/06 , B60C1/00 , C08C19/25 , C08J3/24 , C08K3/013 , C08K3/04 , C08K3/36 , C08K2201/003 , C08L15/00 , C08L21/00 , C08L2312/00 , Y02T10/862
摘要： Disclosed herein is a rubber composition containing 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound represented by the formula (1), and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying (i) to (iii): (i) a weight average molecular weight (Mw) is not less than 1,000 and less than 15,000; (ii) a vinyl content is not more than 70 mol %; and (iii) an average number of functional groups per molecule of the modified liquid diene rubber (B) is 1 to 20.

6. 发明申请

US20200207956A1 TIRE RUBBER COMPOSITIONS 审中-公开
公开(公告)号：US20200207956A1
公开(公告)日：2020-07-02
申请号：US16643181
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Hiroshi KANBARA , Daisuke KODA
IPC分类号： C08L7/00 , C08L9/06 , B60C11/00 , B60C1/00
摘要： The invention provides a tire rubber composition capable of giving crosslinked products having excellent properties including mechanical strength such as abrasion resistance, a crosslinked product of the composition, and a tire tread, a bead filler, a tire belt and a pneumatic tire which each partially include the composition or the crosslinked product and which each exhibit satisfactory dry grip performance plus excellent wet grip performance and ice grip performance and can attain enhanced steering stability. The tire rubber composition includes 100 parts by mass of a solid rubber (A) having a glass transition temperature (Tg) of not more than −10° C., 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) to (iv): (i) the weight average molecular weight (Mw) is not less than 1,000 and less than 15,000, (ii) the vinyl content is not more than 70 mol %, (iii) the average number of the functional groups per molecule of the modified liquid diene rubber (B) is 1 to 20, and (iv) the glass transition temperature (Tg) is not more than 0° C.

7. 发明申请

US20190218376A1 RUBBER COMPOSITIONS 审中-公开
公开(公告)号：US20190218376A1
公开(公告)日：2019-07-18
申请号：US16329567
申请日：2017-09-01
申请人： KURARAY CO., LTD.
发明人： Hiromi MAEDA , Daisuke KODA , Hiroshi KANBARA , Satomi OHTA
IPC分类号： C08L9/06 , C08L7/00 , C08L15/00 , B60C1/00
CPC分类号： C08L9/06 , B60C1/00 , C08C19/25 , C08K3/013 , C08K3/04 , C08K3/36 , C08L7/00 , C08L15/00 , C08L21/00 , C08L2312/00 , Y02T10/862
摘要： A rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound represented by the formula (1), and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying (i) to (iii) below: (i) The weight average molecular weight (Mw) is 15,000 to 120,000. (ii) The vinyl content is not more than 70 mol %. (iii) The average number of functional groups per molecule of the modified liquid diene rubber (B) is 1 to 30.

8. 发明申请

US20160053097A1 RUBBER COMPOSITION, VULCANIZED RUBBER, AND TIRE 审中-公开
标题翻译：橡胶组合物，VULCANIZED RUBBER和TIRE
公开(公告)号：US20160053097A1
公开(公告)日：2016-02-25
申请号：US14780802
申请日：2014-03-25
申请人： KURARAY CO., LTD.
发明人： Daisuke KODA , Kei HIRATA , Hiroshi KANBARA
IPC分类号： C08L9/06 , C08L9/00 , C08L7/00
CPC分类号： C08L9/06 , B60C1/00 , C08K3/013 , C08K3/04 , C08K5/0025 , C08L7/00 , C08L9/00 , Y02T10/862
摘要： The invention relates to a rubber composition having a good processability, and simultaneously having a rolling resistance performance and hardness after vulcanization at high levels, with which the contamination of the mold for processing due to the bleeding-out of the plasticizer can be suppressed, and in which the migration of the plasticizer and so on is suppressed to a low level; a vulcanized rubber obtained by vulcanizing the rubber composition; and to a tire including the rubber composition as at least a part thereof. The rubber composition contains 100 parts by mass of rubber component (A) composed of at least one of a synthetic rubber and a natural rubber, 0.1 to 50 parts by mass of a diene polymer (B), 20 to 150 parts by mass of a filler (C), 0.1 to 10 parts by mass of a vulcanizing agent (D), 0.1 to 15 parts by mass of a vulcanization accelerator (E) and 0.1 to 15 parts by mass of vulcanization aid (F).
摘要翻译：本发明涉及具有良好加工性的橡胶组合物，同时具有高水平硫化后的滚动阻力性能和硬度，可以抑制由于增塑剂渗出而导致的加工模具污染;以及其中增塑剂的迁移等被抑制到低水平; 通过硫化橡胶组合物获得的硫化橡胶; 以及包括至少部分橡胶组合物的轮胎。橡胶组合物含有100质量份由合成橡胶和天然橡胶中的至少一种构成的橡胶成分（A），0.1〜50质量份的二烯系聚合物（B），20〜150质量份的填料（C），0.1〜10质量份硫化剂（D），0.1〜15质量份硫化促进剂（E）和0.1〜15质量份硫化助剂（F）。

9. 发明申请

US20210017320A1 MODIFIED LIQUID DIENE POLYMER AND RUBBER COMPOSITION 有权
公开(公告)号：US20210017320A1
公开(公告)日：2021-01-21
申请号：US16978188
申请日：2019-03-04
申请人： KURARAY CO., LTD.
发明人： Satomi OHTA , Hiroshi KANBARA , Daisuke KODA
IPC分类号： C08F297/02 , C08L9/06 , B60C1/00
摘要： The invention provides a modified liquid diene polymer that allows a rubber composition to give a crosslinked product which contains a filler in a dispersed state ideal for attaining enhanced properties and which also exhibits excellent properties such as wet grip and abrasion resistance. The invention also provides a rubber composition including the modified liquid diene polymer, a crosslinked product thereof, and a tire which includes a portion including the composition or the crosslinked product. The modified liquid diene polymer is a product of modification, with a specific silane compound, of a liquid diene block copolymer including a polymer block (b′1) or (b″1) containing butadiene units and a polymer block (b′2) or (b″2). The modified liquid diene polymer has a functional group derived from the silane compound, and satisfies specific conditions.

10. 发明申请

US20200332090A1 HEAVY-DUTY TIRE RUBBER COMPOSITIONS AND TIRES 审中-公开
公开(公告)号：US20200332090A1
公开(公告)日：2020-10-22
申请号：US16643138
申请日：2018-08-29
申请人： KURARAY CO., LTD.
发明人： Daisuke KODA , Hiroshi KANBARA
IPC分类号： C08L9/00 , B60C1/00
摘要： The invention provides a heavy-duty tire rubber composition capable of giving heavy-duty tires which exhibit low heat generation properties and have good abrasion resistance, and also provides a tire tread, a bead filler, a tire belt and a heavy-duty tire which each partially include the composition. The heavy-duty tire rubber composition includes 100 parts by mass of a solid rubber (A), 0.1 to 50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound with a specific structure, and 20 to 200 parts by mass of a filler (C), the modified liquid diene rubber (B) satisfying the following (i) and (ii): (i) the weight average molecular weight (Mw) is not less than 1,000 and not more than 120,000, and (ii) the vinyl content is less than 30 mol %.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式