Method for producing a rubber-plastic composite

US12247118B2 · kind B2 · utility

Assignee

• Continental Reifen Deutschland GmbH · DE

Inventors

• Konstantin Efimov · Hefei, CN
• Anna-Lena Dreier · Hannover, DE
• Klaus Hülsmann · Haltern am See, DE
• Andreas Pawlik · Recklinghausen, DE
• Marco Kormann · Herzogenaurach, DE
• Maximilian Drexler · Herzogenaurach, DE

Key dates

• Filing date: Sep 1, 2020
• Grant date: Mar 11, 2025
• Expiry date: Nov 13, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2312/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method for producing a rubber-plastic composite, including the steps of (a) shaping an unvulcanized elastomer, (b) partially vulcanizing the shaped elastomer at a temperature of at least 140° C. up to a degree of vulcanization in the range from 10% to 40%, (c) cooling the partially vulcanized elastomer to a temperature of less than 100° C. within less than 20 minutes, (d) overmolding the partially vulcanized elastomer with a plastic, and (e) heat treating the partially vulcanized elastomer overmolded with a plastic at a temperature in the range from 100° C. to 170° C. for a duration of from 5 minutes to 5 hours to complete the vulcanization and form a rubber-plastic composite. The method further relates to a rubber-plastic composite obtainable by the method according to the invention and also to a shoe comprising the rubber-plastic composite obtainable by the method according to the invention.