Flame retardant compositions, compounds, and methods of making

JP2025532848APending Publication Date: 2025-10-03HB FULLER CO
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Patent Information

Application Number
JP2025517819
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-26
Filing Date
2023-09-25
Publication Date
2025-10-03

AI Technical Summary

Technical Problem

Existing potting compounds for battery modules lack sufficient flame retardancy and mechanical stability while maintaining minimal weight, and there is a need for compositions that can form foam compounds with high flame resistance and compressive strength.

Method used

A composition comprising a first component with an isocyanate-reactive compound and a blowing agent, and a second component with an isocyanate compound, where at least one component includes a flame retardant, forming a foam compound with high flame resistance and compressive strength.

Benefits of technology

The composition achieves a flame resistance level of at least V0 and a compressive strength of at least 20 psi, even at thin thicknesses, providing effective protection for battery modules.

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Abstract

1. A composition that is configured to cure to form a foam compound that exhibits at least a V2 level of flammability resistance, as measured by UL 94 "Plastics Materials Flammability Test," when measured using a sample of the foam compound having a thickness of 1 millimeter or less.
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Citation Information

Patent Citations

  • Polyurethane composition and polyurethane foam

    CN113024766A

  • Flame-retardant urethane resin composition

    JP2022048708A

  • Process for producing flameproof (RIGID) PUR spray forms

    US20120156469A1

  • Electro−magnetic wave shielding gasket

    WO2004002206A1