Medical rubber articles and methods for manufacturing the same
A method for medical rubber articles using halogenated butyl rubber and polyolefin resin particles, treated with a vinyl compound and ultraviolet light, addresses the issues of silicone oil contamination and fluororesin-based film limitations, achieving reduced friction, tackiness, and improved liquid tightness.
JP2026115480APending Publication Date: 2026-07-09SUMITOMO RUBBER INDUSTRIES LTD +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SUMITOMO RUBBER INDUSTRIES LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-07-09
Smart Images
Figure 2026115480000004 
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Abstract
The present invention provides a method for manufacturing medical rubber articles in which the surface friction coefficient and tackiness are reduced, and liquid tightness is improved. [Solution] The present invention provides a method for producing a medical rubber article, comprising the steps of: contacting a cured product of a medical rubber composition containing (a) a base polymer containing halogenated butyl rubber and (b) polyolefin resin particles with a vinyl compound-containing liquid containing a vinyl compound represented by the following general formula (1) and a solvent; and irradiating the cured product after contact with the vinyl compound-containing liquid with ultraviolet light, wherein the solubility parameter value (SP value) of the solvent is 9.5 or higher. R-CH=CH2(1) [In the formula, R represents an alkyl group having 6 or more carbon atoms.]
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