Elastic covering material having improved flame retardant properties and production thereof

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 one 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, wherein the flame retardant includes 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 , R2are 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 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 001 to 100 h to form a mixture and vulcanizing the mixture, wherein the flame retardant includes 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;
• R3is 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 comprising the steps of mixing an organic binder, 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 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 block, and cutting the block into at least one slab, wherein the flame retardant includes 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;
• and
• x is from 1 to 4.

A process for producing an elastic covering material comprising the steps of mixing. latex, at least one inorganic mineral filler and a 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, wherein the flame retardant includes 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;
• and
• x is from 1 to 4.

A process for producing an elastic covering material, comprising the steps of mixing 10 to 90% by weight of polyvinyl chloride, 10 to 90% by weight of plasticizer, 10 to 90% by weight of at least one inorganic mineral filler and 0.1 to 10% by weight of a flame retardant, and optionally at least one additive to form a mixture, rolling the mixture to form a sheet and comminuting the sheet to form granules having a particle size of from 0.1 to 10 mm, melting the granules at from 100 to 300° C., rolling the melted granules onto a support sheet and cuffing the support sheet to size, wherein the flame retardant includes 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 or a mixture thereof

• where
• R1, R2are the same or different and are each C1-C6-alkyl, linear or branched, or aryl;
• R3is 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;
• and
• x is from 1 to 4.