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Melamine resin foam material comprising an anorganic filler material having a high density

An inorganic filling material, melamine technology, applied in the field of melamine resin foam, can solve the problem that the mechanical properties of the foam need to be improved, etc.

Inactive Publication Date: 2020-03-10
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the obtained foams leave room for improvement in terms of their mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0086] Test standards and methods used:

[0087] DIN EN13501-1 - Classification of fire resistance of construction products and building components:

[0088] This European Standard specifies a method for the classification of the fire behavior of construction products including products within building components.

[0089] Construction products intended for use in class A2 must be tested to EN ISO1182 or EN ISO1716. In addition, all construction products intended for class A2 must be tested to EN13823.

[0090] EN ISO1716-combustion heat test method:

[0091] This test method determines the highest heat that may be released by complete combustion of a building product without regard to its actual use. This test method is relevant for levels A1 and A2. This method can determine both higher calorific value and lower calorific value.

[0092] EN ISO1182-Nonflammability test:

[0093] This test determines which building products do not contribute or significantly contribute ...

Embodiment C

[0108] Use 80.0% by weight with a density of 4.5g / cm 3 The finely dispersed barium sulfate is used as filler material to prepare melamine-formaldehyde foam, based on the total weight of inorganic filler material and melamine-formaldehyde precondensate used for foam preparation:

[0109] Dissolve 75 parts by weight of spray-dried melamine-formaldehyde precondensate (molar ratio 1:3) in 25 parts by weight of water, add 3% by weight of formic acid, 2% by weight of C 12 / C 14 Sodium alkyl sulfate, 38% by weight of pentane (% by weight are all based on the precondensate) and 300 parts by weight of barium sulfate of the type Blanc Fixe F (particle size distribution ("PSD") in the range of 0.001 to 0.045 mm , with an average particle size of 0.020 mm, Sachtleben Chemie GmbH), followed by stirring and foaming in polypropylene molds (for foaming) by microwave energy irradiation. After foaming, let the foam dry for 30 minutes.

[0110] The friable melamine-formaldehyde foam has a den...

Embodiment 1

[0111] Embodiment 1 (the present invention)

[0112] Use 80% by weight of barium sulfate / melamine-formaldehyde precondensate as a density of 4.2g / cm 3 Inorganic filler material for preparing melamine-formaldehyde foam, based on the total weight of melamine-formaldehyde precondensate and inorganic filler material used for foam preparation:

[0113] 90% by weight of barium sulfate (Blanc Fixe F, Sachtleben Chemie) and 10% by weight of spray-dried melamine-formaldehyde precondensate (molar ratio 1:3) were prepared by agglomeration in a fluidized bed process. The granulation test was carried out using a fluidized bed spray granulator with a diameter of 230 mm. The adhesive was sprayed down onto a flat bed (bed height about 10 to 40mm). This produces barium sulfate particles with a size of 0.050 to 0.350 mm (average particle size 0.200 mm).

[0114] This example was carried out analogously to Example C, except that 300 parts by weight of barium sulfate / melamine-formaldehyde prec...

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Abstract

The present invention relates to a melamine formaldehyde foam material, comprising 80 to 98 wt% of at least one anorganic filler material, in relation to the total weight of the melamine formaldehydeprecondensate used for the foam material production and at least one anorganic filler material, wherein the at least one anorganic filler material has a density of at least 3g / cm<3>.

Description

[0001] This application is a divisional application of the Chinese Invention Patent Application No. 201380053471.2 filed on September 10, 2013 with the title of "Melamine Resin Foam Material Containing High-Density Inorganic Filler". technical field [0002] The present invention relates to melamine resin foam, its preparation method and its use. Background technique [0003] WO 2012 / 059493 discloses foamed melamine resins containing inorganic fillers. The foamed melamine-formaldehyde material contains 80% to 98% by weight of inorganic filler material, wherein the weight % is based on the total weight of inorganic filler material and melamine / formaldehyde precondensate used for foam production. Inorganic materials include quartz, olivine, basalt, glass spheres, glass fibers, ceramic spheres, clay minerals, sulfates, carbonates, diatomaceous earth, silicates, colloidal silica, and mixtures thereof. These inorganic filler materials are generally finely divided, ie they have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/28C08K3/30C08J9/00
CPCC08J9/009C09K21/14C08J2361/28C08J9/0066
Inventor T·H·施泰因克G·芬克
Owner BASF AG