Aqueous resin crosslinking agent, aqueous resin crosslinking agent-containing liquid, and aqueous-resin composition
A mixture of specifically capped polycarbodiimide compounds and a surfactant enhances the water resistance and adhesion of waterborne resin compositions, addressing the limitations of existing carbodiimide-based agents.
CA3132124CActive Publication Date: 2026-07-07NISSHINBO CHEM
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Patent Information
- Application Number
- CA3132124
- Authority / Receiving Office
- CA · CA
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-03-05
- Filing Date
- 2020-03-04
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2040-03-04
AI Technical Summary
Technical Problem
Existing carbodiimide-based crosslinking agents for waterborne resins fail to provide sufficient water resistance, solvent resistance, and water-resistant adhesion in cured products.
Method used
A mixture of specific polycarbodiimide compounds, capped with end-capping compounds at their terminals, and a surfactant, is used to enhance the water resistance, solvent resistance, and water-resistant adhesion of waterborne resin compositions.
Benefits of technology
The solution improves the storage stability and enhances the water resistance, solvent resistance, and water-resistant adhesion of cured waterborne resin products, making them suitable for applications such as adhesives, fiber treatment agents, and coatings.
✦ Generated by Eureka AI based on patent content.
Abstract
A waterborne resin crosslinking agent containing a predetermined polycarbodiimide compound (A) having an oxyalkylene group, a predetermined polycarbodiimide compound (B), and a surfactant (C), each polycarbodiimide compound has a structure in which an isocyanate group is capped with a predetermined end-capping compound at each of both terminals, a total content of the oxyalkylene group in (A) is 15% by mass or more, a total content of the oxyalkylene group in (A) and (B) based on a total amount of (A) and (B) is 10% by mass or less, and a content of (C) is 0.1 to 20 parts by mass based on a total content of (A) and (B) of 100 parts by mass.
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