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Patent Searching and Data


Title:
HOLLOW STRUCTURAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2017/094467
Kind Code:
A1
Abstract:
The present invention pertains to a product having a hollow structure for maintaining an internal pressure, particularly a pneumatic tire or a sports ball such as a tennis ball or a soccer ball, and provides a hollow structural member having a rubber core with a hollow interior, characterized in that an inner side surface or an outer side surface of the rubber core is coated with a layer having a thickness of 0.5 to 2000 μm and containing polyvinyl alcohol. The hollow structural member of the present invention makes it possible to maintain an internal pressure in the hollow part of the rubber core over an extended period of time.

Inventors:
KONDO Taku (20, Onohara, Chichibu-sh, Saitama 05, 〒3680005, JP)
KANDA Akira (20, Onohara, Chichibu-sh, Saitama 05, 〒3680005, JP)
NISHII Masayuki (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
Application Number:
JP2016/083315
Publication Date:
June 08, 2017
Filing Date:
November 10, 2016
Export Citation:
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Assignee:
BRIDGESTONE SPORTS CO., LTD. (2-4-1, Hamamatsu-cho Minato-k, Tokyo 27, 〒1056127, JP)
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
B32B1/06; A63B41/00; B60C5/14; C08J7/04
Foreign References:
JPH05229064A1993-09-07
JP2004196254A2004-07-15
JP2008093992A2008-04-24
JP2012501759A2012-01-26
JPH06220287A1994-08-09
JP2016222826A2016-12-28
Attorney, Agent or Firm:
PATENT PROFESSIONAL CORPORATION EI-MEI PATENT OFFICE (GINZA OHTSUKA Bldg. 2F, 16-12 Ginza 2-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
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