Elastic covering material having improved flame retardant properties and production thereof
AssigneeClariant GmbH
InventorsHarald Bauer, Hans-Matthias Deger, Werner Krause
Life of this patent
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Abstract
The invention relates to an elastic covering material, which comprises, as a flame retardant, a phosphinate salt of the formula (I) and/or a diphosphinate salt of the formula (II) and/or polymers thereof where R1, R2 are the same or different and are each C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4. The invention relates to processes for producing such elastic covering materials.
Claims28
An elastic covering material, comprising a covering material and as a flame retardant, a phosphinate salt of the formula (I) a diphosphinate salt of the formula (II) a polymer of the phosphinate salt, a polymer of the diphosphinate salt and mixtures thereof
- where
- R1, R2 are the same or different and are each C1-C6-alkyl, linear or branched, or aryl;
- R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene;
- M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K or a protonated nitrogen base;
- m is from 1 to 4;
- n is from 1 to 4;
- x is from 1 to 4:
A process for producing an elastic covering material using linoleum, comprising the steps of melting semioxidized linseed oil with rosin at from 30 to 300° C. for a period of from 0.01 to 100 h to give linoleum cement, mixing the linoleum cement with at least one compound selected from the group consisting of an organic and inorganic filler, at least pigment and at least one flame retardant to form a mixture, granulating the mixture using a spiked roll, compressing the mixture on a backing material using a calender at from 10 to 150° C. and drying the backing material at from 30 to 300° C. over for a period of from 1 to 1000 h.
A process for producing an elastic covering material comprising the steps of mixing unvulcanized rubber, at least one filler, at least flame retardant and optionally, at least one further additive at a temperature from 100 to 300° C. for a period of from 0.01 to 100 h to form a mixture and vulcanizing the mixture.
A process for producing an elastic covering material comprising the steps of mixing an organic binder and cork granules having a particle size of from 0.1 to 10 mm with a crosslinking catalyst to form a mixture, adding a flame retardant to the mixture compressing with the mixture at a temperature of from 30 to 300° C. for a period of from 0.01 to 100 hours at an elevated pressure of 1-200° t to form a blok, and cutting the block into at least one slab.
A process for producing an elastic covering material comprising the steps of mixing latex, at least one inorganic mineral filler and the flame retardant at a temperature of from 20 to 300° C. to form a latex mixture, casting the resulting latex mixture on a carpet backing, and optionally, applying a further top layer of latex mixture.
Dependencies are inferred from the claim text.