Insulating Material and Method of its Production

Abstract

An insulating material, especially a non-flammable thermally insulating material containing water glass and a plastic component consisting of a mixture containing 43 to 57.5 weight percent of a plastic component, 30 to 47 weight percent of an aqueous solution of silicate, 9 to 11.5 weight percent of hollow glass microspheres, and 0.1 to 1 weight percent of a water glass stabilizer. Method of production of the insulating material, especially method of production of the non-flammable thermally insulating material lying in the fact that, as the first step, a water glass stabilizer is added into the aqueous solution of silicate and, at the same time, a mixture of phenyl methyl diisocyanate and branched polyol is prepared and then the aqueous solution of silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol and thereafter hollow glass spheres are added into the resulting mixture and everything is then thoroughly mixed again.

Claims

1. A non-flammable thermally insulating material comprising water glass and a plastic component comprising 43 to 57.5 weight percent of a plastic component, 30 to 47 weight percent of an aqueous solution of silicate, 9 to 11.5 weight percent of hollow glass microspheres, and 0.1 to 1 weight percent of a water glass stabilizer.

2. The insulating material according to claim 1, wherein the plastic component is polyurethane.

3. The insulating material according to claim 1, wherein the plastic component is polyurethane comprising a mixture of 60 to 70 weight percent of phenyl methyl diisocyanate and 30 to 40 weight percent of branched polyol.

4. The insulating material according to claim 1, wherein the hollow glass spheres are microspheres 0.05 to 0.08 mm in size.

5. The insulating material according to claim 1, wherein the aqueous solution of silicate is an aqueous solution of sodium silicate.

6. The insulating material according to claim 1, wherein the aqueous solution of silicate is an aqueous solution of potassium silicate.

7. The insulating material according claim 1, wherein the material further comprises a water glass hardener.

8. The insulating material according to claim 1, wherein the water glass stabilizers are hydrophilic alkoxy alkyl-ammonium salts.

9. A method of production of the non-flammable thermally insulating material according to claim 1, wherein as the first step, the water glass stabilizer is added into the aqueous solution of silicate and, at the same time in a second step, a mixture of phenyl methyl diisocyanate and branched polyol is prepared and then the aqueous solution of silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol and thereafter the hollow glass spheres are added into the resulting mixture and everything is then thoroughly mixed again.

10. The method of production of the insulating material according to claim 9, wherein the water glass hardener is added into the aqueous solution of silicate and water glass stabilizer.

11. The method of production of the insulating material according to claim 9, wherein the resulting mixture is then poured in a silicone mould and left undisturbed until it becomes hardened.

Description

EXAMPLES OF THE PERFORMANCE OF THE INVENTION

Example 1

[0022] The non-flammable insulating material consists of a mixture that contains 45 weight percent of a plastic component, 43 weight percent of an aqueous solution of sodium silicate, 9.6 weight percent of hollow glass microspheres, 0.1 weight percent of a water glass stabilizer, and 2.3 weight percent of a water glass hardener.

[0023] The plastic component is polyurethane which consists of a mixture of 67 weight percent of phenyl methyl diisocyanate and 33 weight percent of branched polyol.

[0024] The hollow glass spheres are microspheres of 0.05 mm in size.

[0025] The water glass hardener is a mixture of pure glycerol diacetate/triacetate in the ratio of 7:3 volume parts with the concentration of 0.5 to 5 weight percent to the pure water glass.

[0026] Hydrophilic alkoxyle alkyl ammonia salts in the form of 98-percent aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylene diamine are used as a water glass stabilizer.

[0027] Method of production: As the first step, the water glass stabilizer is added into the aqueous solution of sodium silicate. As the second step, the water glass hardener is added into the solution and everything is stirred for 10 minutes. At the same time, the mixture of phenyl methyl diisocyanate and branched polyol is prepared. After that, the aqueous solution of sodium silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol. Then the hollow glass spheres are added to the resulting mixture and everything is thoroughly mixed again.

[0028] After that, the resulting mixture is poured in a silicone mould and left as it is until it becomes hardened.

Example 2

[0029] The non-flammable insulating material consists of a mixture that contains 54 weight percent of a plastic component, 34.9 weight percent of an aqueous solution of potassium silicate, 11 weight percent of hollow glass microspheres, and 0.1 weight percent of a water glass stabilizer.

[0030] The plastic component is polyurethane which consists of a mixture of 66 weight percent of phenyl methyl diisocyanate and 33 weight percent of branched polyol.

[0031] The hollow glass spheres are microspheres of 0.065 mm in size.

[0032] The water glass hardener is a mixture of pure glycerol diacetate/triacetate in the ratio of 7:3 volume parts with the concentration of 0.5 to 5 weight percent to the pure water glass.

[0033] Hydrophilic alkoxyle alkyl ammonia salts in the form of 98-percent aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylene diamine are used as a water glass stabilizer.

[0034] Method of production: As the first step, the water glass stabilizer is added into the aqueous solution of sodium silicate. At the same time, the mixture of phenyl methyl diisocyanate and branched polyol is prepared. Then the aqueous solution of sodium silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol. Then the hollow glass spheres are added in the resulting mixture and everything is thoroughly mixed again.

[0035] After that, the resulting mixture is poured in a silicone mould and left as it is until it becomes hardened.

Example 3

[0036] The non-flammable insulating material consists of a mixture that contains 57.5 weight percent of a plastic component, 30 weight percent of an aqueous solution of sodium silicate, 11.5 weight percent of hollow glass microspheres, and 0.8 weight percent of a water glass stabilizer, and 0.2 weight percent of a water glass hardener.

[0037] The plastic component is polyurethane which consists of a mixture of 60 weight percent of phenyl methyl diisocyanate and 40 weight percent of branched polyol.

[0038] The hollow glass spheres are microspheres of 0.08 mm in size.

[0039] The water glass hardener is a mixture of pure glycerol diacetate/triacetate in the ratio of 7:3 volume parts with the concentration of 0.5 to 5 weight percent to the pure water glass.

[0040] Hydrophilic alkoxyle alkyl ammonia salts in the form of 98-percent aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylene diamine are used as a water glass stabilizer.

[0041] Method of production: As the first step, the water glass stabilizer and the water glass hardener are added into the aqueous solution of sodium silicate and everything is stirred for 10 minutes. At the same time, the mixture of phenyl methyl diisocyanate and branched polyol is prepared. Then the aqueous solution of sodium silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol. Then the hollow glass spheres are added in the resulting mixture and everything is thoroughly mixed again.

[0042] After that, the resulting mixture is poured in a silicone mould and left as it is until it becomes hardened.

Example 4

[0043] The non-flammable insulating material consists of a mixture that contains 43 weight percent of a plastic component, 47 weight percent of an aqueous solution of potassium silicate, 9 weight percent of hollow glass microspheres, and 1 weight percent of a water glass stabilizer.

[0044] The plastic component is polyurethane which consists of a mixture of 70 weight percent of phenyl methyl diisocyanate and 30 weight percent of branched polyol.

[0045] The hollow glass spheres are microspheres of 0.065 mm in size.

[0046] The water glass hardener is a mixture of pure glycerol diacetate/triacetate in the ratio of 7:3 volume parts with the concentration of 0.5 to 5 weight percent to the pure water glass.

[0047] Hydrophilic alkoxyle alkyl ammonia salts in the form of 98-percent aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylene diamine are used as a water glass stabilizer.

[0048] Method of production: As the first step, the water glass stabilizer is added into the aqueous solution of sodium silicate. At the same time, the mixture of phenyl methyl diisocyanate and branched polyol is prepared. Then the aqueous solution of sodium silicate is intermixed with the mixture of phenyl methyl diisocyanate and branched polyol. Then the hollow glass spheres are added in the resulting mixture and everything is thoroughly mixed again.

[0049] After that, the resulting mixture is poured in a silicone mould and left as it is until it becomes hardened.

INDUSTRIAL APPLICATION

[0050] The insulating material according to this invention has a wide range of use not only in the building industry but also in the automotive and electrotechnical industries as it can either be used for making individual insulating products or it can be applied directly onto individual surfaces (e.g. metals) to be protected.