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Low TVOC flame retardant polyurethane spray foam system

A polyurethane foam and spray foam technology, applied in the field of polyurethane spray foam and its preparation, low TVOC flame retardant polyurethane spray foam system, can solve the problems of insufficient mixing, low processing efficiency, no mention of spray processing problems, etc., reaching TVOC value low effect

Pending Publication Date: 2022-03-01
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] When solid flame retardants are used in spray-in-place spray foam systems to prepare open-cell polyurethane foams for bus insulation or building insulation, one problem encountered in spray foam systems is insufficient mixing and thus inefficient processing
The prior art literature is silent on the spray processing problems encountered with spray foam systems containing solid flame retardants

Method used

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  • Low TVOC flame retardant polyurethane spray foam system
  • Low TVOC flame retardant polyurethane spray foam system
  • Low TVOC flame retardant polyurethane spray foam system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] The following materials were mixed in 1 minute at a rate of 1800 rpm in the beaker, and a polyol blend was prepared: 20Glupranol 2095, 15G luPraphen 3905, 10g TCPP, 0.3g Ortegol 501, 0.7g B 1048, 10G DPG, 3.0G Jeffcat ZF10 and 6G water. Then, 5 g of expandable graphite was added to the mixture and mixed with a mixture of 1800 rpm for 3 minutes. 30 g of melamine was then added to the mixture, and stirred at 1800 rpm for 3 minutes. Finally, 120 g isocyanate B1001 was added, and the mixture was stirred at 1800 rpm for 5 seconds. Let the foam originated in free start conditions.

Embodiment 2

[0138] The following materials were mixed in 1 minute at a rate of 1800 rpm in the beaker, and a polyol blend was prepared: 20Glupranol 2095, 15G luPraphen 3905, 10g TCPP, 0.3g Ortegol 501, 0.7g B 1048, 10G DPG, 3.0G Jeffcat ZF10 and 6G water. Then, 10 g of expandable graphite was added to the mixture, and the mixture was stirred at 1800 rpm for 3 minutes. 25 g of melamine was added to the mixture, and stirred at 1800 rpm for 3 minutes. Finally, 120 g isocyanate B1001 was added, and the mixture was stirred at 1800 rpm for 5 seconds. Let the foam originated in free start conditions.

Embodiment 3

[0140] The following materials were mixed in 1 minute at a rate of 1800 rpm in the beaker, and a polyol blend was prepared: 20Glupranol 2095, 15G luPraphen 3905, 10g TCPP, 0.3g Ortegol 501, 0.7g B 1048, 10G DPG, 3.0G Jeffcat ZF10 and 6G water. Then, 20 g of expandable graphite was added to the mixture, and the mixture was stirred at 1800 rpm for 3 minutes. 15 g of melamine was then added to the mixture, and stirred at 1800 rpm for 3 minutes. Finally, 120 g isocyanate B1001 was added, and the mixture was stirred at 1800 rpm for 5 seconds. Let the foam originated in free start conditions.

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Abstract

The invention relates to a low-TVOC flame-retardant polyurethane spray foam system comprising at least one isocyanate as an isocyanate component, and at least one isocyanate-reactive substance, optionally a chain extender and / or cross-linking agent, a flame retardant, a foaming agent, a catalyst and optionally an additive and / or auxiliary agent as a resin component, wherein the flame retardant comprises expandable graphite in an amount ranging from 5 wt% to less than 30 wt% and melamine in an amount ranging from greater than 5 wt% to 30 wt%, each based on the total weight of the resin component, the invention also relates to polyurethane spray foam prepared from the polyurethane spray foam system, a preparation method of the polyurethane spray foam, and application of the polyurethane foam in thermal insulation, sound insulation, cavity filling and damping filler application.

Description

Technical field [0001] The present invention relates to a flame retardant polyurethane spray foam system, particularly low TVOC (total volatile organic compound) flame retardant polyurethane spray foam system, which relates to polyurethane spray foams prepared therewet and the preparation method thereof, and the polyurethane foam in heat insulation, sound insulation The use in the application, such as in the area of ​​transportation or architecture, or in a chamber filling (sponge) and shock absorbing foam applications. Background technique [0002] Polyurethane foams are suitable for a large number of applications such as buffer materials, thermal insulating materials, packaging, automotive dashboards or building materials. Many applications require effective flame retardation. Therefore, a plurality of flame retardants for polyurethane have been described in the past. [0003] The halogenated compound is used, for example, as a flame retardant. However, halogenated flame retard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/42C08G18/32C08G18/30C08G18/18C08K5/3492C08K3/04C08K5/521C08J9/08
CPCC08G18/7664C08G18/3206C08K3/04C08G18/18C08J9/0028C08J9/0066C08K5/521C08K5/34922C08G18/42C08G18/4829C08G18/6677C08G18/4018C08J2375/04C08K5/0066C08G18/4208C08G18/302C08G18/664C08G18/6674C08G2110/005C08G2110/0083C08J9/0038C08J9/0095C08J2207/04C08L75/04C08J9/125C08J9/228C08J2201/022C08L67/08C08L2201/02C08L2205/05
Inventor 赵贺猛杨伟王超
Owner BASF SE
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