Uramate resin composition and laminate

TWI942973BActive Publication Date: 2026-10-21DIC CORP
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Patent Information

Application Number
TW111143913
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-11-18
Filing Date
2022-11-17
Publication Date
2026-10-21
Estimated Expiration
2042-11-16

AI Technical Summary

Technical Problem

Existing urethane resin compositions used in synthetic leather manufacturing face challenges with mechanical foaming, leading to poor texture and crack resistance due to bubble instability and film rupture during drying.

Method used

A urethane resin composition containing a urethane resin with hydrophilic groups, water, and a film-forming aid with 2 to 4 alcoholic hydroxyl groups and a molecular weight of 300 or less, which enhances blending stability and bubble retention, preventing film cracking.

Benefits of technology

The composition achieves environmentally friendly urethane resin with excellent blending stability, crack resistance, and texture, suitable for use as a foam layer in synthetic leather.

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Abstract

This invention provides a carbamate resin composition, characterized by comprising: a carbamate resin (A) having a hydrophilic group, water (B), and a film-forming aid (C) containing a compound (c1) having 2 to 4 alcoholic hydroxyl groups and a molecular weight of 300 or less. Furthermore, this invention provides a laminate, characterized by having at least a substrate (i) and a foamed layer (ii) formed from the aforementioned carbamate resin composition. This carbamate resin composition exhibits excellent blending stability and, even when mechanically foamed, can form a film with excellent crack resistance and texture.
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Citation Information

Patent Citations

  • Modified polyurethane fire-proof water-based paint and preparation method thereof

    CN109306047A

  • TW113454137A

  • Film formation assistant, and aqueous resin composition and surface treatment agent containing the same

    TW201323497A