公开(公告)号：US20130172098A1

公开(公告)日：2013-07-04

申请号：US13729327

申请日：2012-12-28

Applicant: DUNLOP SPORTS CO., LTD.

Inventor： Kazuyoshi SHIGA ,  Yasuo NAITO

IPC: A63B53/10

CPC classification number: A63B53/10 ,  A01K87/00 ,  A63B49/10 ,  A63B2209/02 ,  B29L2023/22 ,  B29L2031/5227 ,  C08J5/042 ,  C08J5/24 ,  C08J2363/02 ,  C08J2363/04 ,  C08J2429/14 ,  Y10T428/1369 ,  Y10T428/139 ,  Y10T428/1397

Abstract: It is an object to provide a tubular body made from a novel fiber-reinforced epoxy resin material having improved strength. A tubular body made of a fiber-reinforced epoxy resin material according to the present invention is a tubular body made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber. The cured product of the epoxy resin composition has a swelling ratio of 20% by mass to 42.5% by mass in methyl ethyl ketone.

Abstract translation: 本发明的目的是提供一种由具有改进的强度的新型纤维增强环氧树脂材料制成的管状体。 根据本发明的由纤维增强环氧树脂材料制成的管状体是由包含环氧树脂组合物和增强纤维的固化产物的纤维增强环氧树脂材料制成的管状体。 环氧树脂组合物的固化物在甲基乙基酮中的溶胀比为20质量％〜42.5质量％。

公开(公告)号：US20160367872A1

公开(公告)日：2016-12-22

申请号：US14902097

申请日：2014-06-06

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yasuo NAITO ,  Takehiko HYODO ,  Kazuyoshi SHIGA ,  Hiroshi HASEGAWA

IPC: A63B53/10 ,  C08J5/24 ,  C08L63/00

CPC classification number: A63B53/10 ,  A63B2209/023 ,  B29C70/202 ,  C08J5/24 ,  C08J2363/00 ,  C08J2363/02 ,  C08J2429/14 ,  C08J2463/00 ,  C08J2463/04 ,  C08J2463/08 ,  C08L63/00 ,  C08L2205/025 ,  C08L2205/03

Abstract: An object of the present invention is to provide a golf club shaft having excellent strength. The present invention provides a golf club shaft made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises at least one selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin and a novolac type epoxy resin, and a tetraglycidyl type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone.

Abstract translation: 本发明的目的是提供一种具有优异强度的高尔夫球棒杆。 本发明提供一种由包含环氧树脂组合物和增强纤维的固化产物的纤维增强环氧树脂材料制成的高尔夫球杆杆，其中环氧树脂组合物包括选自双酚A型 环氧树脂，双酚F型环氧树脂和酚醛清漆型环氧树脂以及作为环氧树脂组分的四缩水甘油型环氧树脂，并且环氧树脂组合物的固化产物的溶胀比在20质量％至44的范围内 质量％在甲基乙基酮中。

公开(公告)号：US20130324288A1

公开(公告)日：2013-12-05

申请号：US13905191

申请日：2013-05-30

Applicant: DUNLOP SPORTS CO., LTD.

Inventor： Kazuyoshi SHIGA ,  Yasuo NAITO

IPC: A63B53/10

CPC classification number: A63B53/10 ,  A63B60/42 ,  A63B60/54 ,  A63B2209/023 ,  A63B2209/026 ,  A63B2225/02

Abstract: A shaft 6 has a plurality of full length layers s2, s3, and s6 to s9. The full length layers have full length bias layers s2 and s3, and full length straight layers s6, s8, and s9. The full length straight layers s6, s8, s9 located outside the full length bias layers s2 and s3 include a novolac-containing layer. In the novolac-containing layer, a content Rn of the novolac type epoxy resin is 3% by mass or greater and 19% by mass or less. If an average specific gravity of the novolac-containing layers constituting the full length straight layers is defined as S1, and an average specific gravity of the full length bias layers and inside of the full length bias layers is defined as S2, the specific gravity S1 is greater than the specific gravity S2.

Abstract translation: 轴6具有多个全长层s2，s3，s6〜s9。 全长层具有全长偏压层s2和s3，以及全长直层s6，s8和s9。 位于全长偏压层s2和s3外的全长直层s6，s8，s9包括含酚醛清漆层。 在含酚醛清漆层中，酚醛清漆型环氧树脂的含量Rn为3质量％以上且19质量％以下。 如果将构成全长直线层的含酚醛清漆层的平均比重定义为S1，将全长偏置层和全长偏置层内部的平均比重定义为S2，则比重S1 大于比重S2。