Hose and method for producing a hose

A hose design with a textile reinforcement and adhesion promoter layer addresses adhesion and thermal distortion issues, ensuring strong bond strength and efficient, low-temperature tightness while reducing energy consumption.

WO2026119741A1 Publication Date: 2026-06-11CONTITECH TECHNO CHEMIE GMBH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CONTITECH TECHNO CHEMIE GMBH
Filing Date
2025-11-28
Publication Date
2026-06-11

AI Technical Summary

⚠Technical Problem

Existing hose manufacturing methods face challenges in maintaining sufficient layer adhesion between elastomer and textile reinforcement layers under mechanical stress, leading to thermal distortion and energy-intensive processes that affect production efficiency and hose integrity, particularly at low temperatures.

⚗Method used

A multi-layer hose design incorporating a textile reinforcement layer between elastomeric inner and outer layers, with an adhesion promoter layer made of a second thermoplastic material, allowing for reduced preheating and application temperatures, enhancing bond strength and reducing thermal stress.

🎯Benefits of technology

The solution achieves excellent layer adhesion, improved tightness at low temperatures, and increased production efficiency with reduced energy consumption, resulting in hoses with a round cross-section and enhanced durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a hose (10), comprising: i) a hose inner layer (12) comprising a first thermoplastic elastomer material, ii) a hose outer layer (14) lying further outwards in the radial direction relative to the hose inner layer (12) and comprising a second thermoplastic elastomer material, iii) a reinforcing layer (16) arranged between the hose inner layer (12) and the hose outer layer (14), wherein the reinforcing layer (16) comprises one or more textile reinforcement elements (18), wherein the textile reinforcement elements (18) consist at least partially of a first thermoplastic material, and iv) an adhesion promoter layer (20), wherein the adhesion promoter layer (20) contacts the reinforcement layer (16) and the hose outer layer (14), wherein the adhesion promoter layer (20) consists at least partially of a second thermoplastic material which differs from the first thermoplastic material.
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