ARAMID PULP AND METHOD FOR ITS PREPARATION
Patent Information
- Application Number
- DE602020045670
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-12-14
- Filing Date
- 2020-12-24
- Publication Date
- 2025-01-29
- Estimated Expiration
- 2040-12-24
AI Technical Summary
Conventional aramid pulp manufacturing processes are complicated due to the need for separate oil agent removal methods, which limits the improvement of interfacial adhesion force with dissimilar materials and productivity.
The use of oilless aramid staple fibers, produced by spinning and coagulating a spinning dope using an aromatic polyamide polymer, eliminates the need for spinning oil agents, allowing for improved water dispersion and fibrillation, thereby enhancing the specific surface area and interfacial adhesion force of the aramid pulp.
The oilless aramid pulp exhibits improved productivity, specific surface area (10-20 m²/g), and interfacial adhesion force with dissimilar materials, leading to enhanced physical properties and compatibility in applications such as brake pads and gaskets.