发明名称 |
SURFACE MODIFICATION METHOD AND SURFACE-MODIFIED ELASTIC BODY |
摘要 |
Methods are provided for surface-modifying a rubber vulcanizate or a thermoplastic elastomer. The methods allow these objects to have a lubricating surface layer chemically fixed thereon and thus exhibit excellent lubricity and excellent lubricant durability, instead of having a resin coating which has drawbacks such as reduction in lubricity due to e.g. separation or peeling of the coating during movement within a vessel or tract. Further, the methods have good productivity and good economic efficiency. Included is a method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer, the method including: step 1 of forming polymerization initiation points on a surface of the object; and step 2 of radically polymerizing a monomer starting from the initiation points by irradiation with UV of 300-400 nm to grow polymer chains on the surface so that a modification layer of 70-1200 nm thickness is formed on the surface. |
申请公布号 |
US2017058090(A1) |
申请公布日期 |
2017.03.02 |
申请号 |
US201615223139 |
申请日期 |
2016.07.29 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
MINAGAWA Yasuhisa |
分类号 |
C08J7/18;A61L29/04;A61M25/00;C08J7/04;C09D133/14;A61L29/08;A61L29/16 |
主分类号 |
C08J7/18 |
代理机构 |
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代理人 |
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主权项 |
1. A method for surface-modifying an object made of a rubber vulcanizate or a thermoplastic elastomer, the method comprising:
step 1 of forming polymerization initiation points on a surface of the object; and step 2 of radically polymerizing a monomer starting from the polymerization initiation points by irradiation with ultraviolet light having a wavelength of 300 to 400 nm to grow polymer chains on the surface of the object so that a modification layer having a thickness of 70 to 1,200 nm is formed on the surface. |
地址 |
Kobe-shi JP |