Flameproofing

{
  "publication_number": "US9487636B2",
  "country": "US",
  "kind": "B2",
  "title": "Flameproofing",
  "abstract": "The present disclosure relates to an inorganic, halogen-free flameproofing agent made of modified, rehydrated red mud (MR2S), having a mineral composition of 10 to 50 weight percent of iron compounds, 12 to 35 weight percent of aluminum compounds, 5 to 17 weight percent of silicon compounds, 2 to 21 weight percent of TiO 2, and 0.5 to 6 weight percent of calcium compounds, wherein the compounds of iron have a hydroxide and oxide hydrate fraction greater than or equal to 50 weight percent relative to the oxide fraction of the iron compounds, and wherein the compounds of aluminum have a hydroxide and oxide hydrate fraction greater than or equal to 50 weight percent. The disclosure further relates to a flameproofed material system comprising a flammable material and the inorganic, halogen-free flameproofing agent and to a method for the production thereof.",
  "claims": [
    "1. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) with a mineral composition of 10 to 50% by weight of iron compounds, 12 to 35% by weight of aluminium compounds, 5 to 17% by weight of silicon compounds, 2 to 21% by weight of TiO 2 and 0.5 to 6% by weight of calcium compounds, wherein the compounds of iron have a hydroxide and oxide hydroxide proportion that, by weight, is equal to or greater than an oxide proportion of the iron compounds, and wherein the compounds of aluminium have a hydroxide and oxide hydroxide proportion that, by weight, is equal to or greater than an oxide proportion of the aluminium compounds.",
    "2. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 1, further comprising soluble Na 2 O in the proportion equal to or less than 0.03% by weight.",
    "3. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 1, characterised in that the modified rehydrated red mud (MR2S) has a mean particle size (d 50) less than or equal to 50 μm.",
    "4. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 1, characterised in that the modified rehydrated red mud (MR2S) has a residual moisture in the proportion less than or equal to 0.4% by weight.",
    "5. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 1, wherein a further flame-retardant additive is admixed in a proportion of 0 to 70% by weight with the flameproofing agent.",
    "6. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 5, wherein the further flame-retardant additive is an endothermically reacting substance.",
    "7. Inorganic, halogen-free flameproofing agent comprising modified rehydrated red mud (MR2S) as claimed in claim 6, wherein the endothermically reacting substance is ATH, gibbsite, boehmite, MDH, goethite or a mixture thereof.",
    "8. Fireproofed material system comprising a combustible material and a flameproofing agent as claimed in claim 1.",
    "9. Material system as claimed in claim 8, characterised in that the material system is a building material, a plastic product, a rubber product, a chipboard, or a cable sheathing.",
    "10. Material system as claimed in claim 8, characterised in that the material system comprises the flameproofing agent in a proportion of 3-95% by weight.",
    "11. Material system as claimed in claim 8, characterised in that the flameproofing agent comprises the mineral composition in a proportion of 30-100% by weight and the respective remaining proportion of 0-70% by weight is formed by a further flame-retardant composition.",
    "12. Material system as claimed in claim 11, characterised in that the further flame-retardant composition comprises an inorganic non-toxic endothermically reacting sub stance.",
    "13. Material system as claimed in claim 11, characterised in that the further flame-retardant composition comprises salt hydrates, hydroxides and carbonates.",
    "14. A method comprising: using the flameproofing agent as claimed in claim 1 as flame retardant for combustible material systems, combustible building materials, plastics, rubber, chipboard material or cable sheathings."
  ],
  "description_excerpt": "The present disclosure relates to the field of inorganic flameproofing agents (IFA).\n\nFlameproofing agents are fire inhibitors which are intended to restrict, slow down or prevent the spread of fires.\n\nFlameproofing agents are used wherever potential sources of ignition are located, or where the use of combustible materials constitutes a safety risk.\n\nRising demands for safety and the increasing use of high-grade plastics instead of metals and metal alloys, for example in the construction industry, aircraft and automobile manufacture and in interior fittings, have led to an increasing need for flameproofing agents.\n\nThe mode of action of flameproofing agents is based on different effects:\n\nMost flameproofing agents trigger one or more of the said chemical-physical effects:\n\nTherefore the following four types of flameproofing agent are distinguished:\n\nImportant reactive and inherent, but also additive flameproofing agent have been criticised for toxicological reasons, i.e. formation of toxic gases during the decomposition process, and are now subject to a strict risk assessment so that inorganic flameproofing agents have gained increasing importance:\n\nWorldwide production figures can be found, for example, in the report from the Danish Environmental Protection Agency (“Brominated Flame Retardants. Substance Flow Analysis and Assessment of Alternatives” (1999)). Accordingly the groupings of the flameproofing agents are broken down as follows:\n\n50% inorganic flameproofing agents (IFA), for example ATH (Al(OH) 3) and MDH (Mg(OH) 2),",
  "cpc": [
    "C08K 3/016",
    "C08K 3/0058",
    "C08K 3/22",
    "C09K 21/02",
    "H01B 7/295",
    "Y02W 30/91"
  ],
  "ipc": [
    "C08K 3/00",
    "C09K 21/02",
    "H01B 7/295"
  ],
  "assignees": [
    "Fluorchemie GmbH Frankfurt"
  ],
  "inventors": [
    "Christian Rocktäschel",
    "Heinzhorst Möbius"
  ],
  "filing_date": "2011-03-23",
  "publication_date": "2016-11-08",
  "grant_date": "2016-11-08",
  "priority_date": "2011-03-23",
  "application_number": "US-201114004777-A",
  "family_id": "44625700",
  "cited_by_count": 8,
  "citations": [
    "FR978108A",
    "DE2627504A1",
    "JPS5785854A",
    "JPH07315830A",
    "JPH09296116A",
    "US6248302B1",
    "CN101624457A"
  ]
}