Boot for a universal joint

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 21/00 (2006.01) B29C 45/00 (2006.01) B29C 70/14 (2006.01) C08L 23/28 (2006.01) C08L 23/34 (2006.01) C08L 77/00 (2006.01) F16D 3/84 (2006.01)

Patent

CA 2048448

- 21 - ABSTRACT OF THE DISCLOSURE A boot for a universal joint having a tubular bellows portions and a cylindrical retaining portion provided at each axial end of the bellows portion is desired to have a high flexibility to bending deformation and a high rigidity and strength against circumferential deformation. Such desirable properties can be obtained by mixing and kneading a mixture essentially consisting of vulcanizable rubber such as chlorinated polyethylene, polyamide resin such as nylon distributed in the vulcanizable rubber as short fibers which are graft bonded to the vulcanizable rubber on surfaces of the fibers by means of a reactive bonding agent, a crosslinking or vulcanizing agent, and filler and other additive materials; and injection molding the mixture by injecting the mixture into a metallic die set having a cavity corresponding to the shape of the boot from a central part of an axial end portion of the die set.

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Profile ID: LFCA-PAI-O-1892022

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