AQUEOUS POLYMER DISPERSION AS A BINDING AGENT FOR PLASTERS AND COATING MATERIALS HAVING IMPROVED FIRE BEHAVIOR

• US 20120121921A1
• Filed: 07/21/2010
• Published: 05/17/2012
• Est. Priority Date: 07/22/2009
• Status: Abandoned Application

• Current Assignee: BASF SE
• Original Assignee: BASF SE
• Inventors: Cosyns, Audrey, Roller, Sebastian, Terrenoire, Alexandre, Baumstark, Roland, Jahns, Ekkehard, Rupaner, Robert
• Application Number:
  US13/384,605
• Publication Number:
  US 20120121921A1
• Time in Patent Office: Days
• US Class Current: 428/522
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/28 of calcium
• CPC Class Codes: C04B 14/305 Titanium oxide, e.g. titanates
• CPC Class Codes: C04B 2103/408 Dispersants
• CPC Class Codes: C04B 2103/44 Thickening, gelling or viscosity increasing agents
• CPC Class Codes: C04B 2103/63 Flame-proofing agents
• CPC Class Codes: C04B 2103/67 Biocides
• CPC Class Codes: C04B 2111/00482 Coating or impregnation materials
• CPC Class Codes: C04B 2111/28 Fire resistance, i.e. materials resistant to accidental fires or high temperatures
• CPC Class Codes: C04B 24/2641 Polyacrylates; Polymethacrylates
• CPC Class Codes: C04B 26/06 Acrylates
• CPC Class Codes: C08F 2/22 Emulsion polymerisation
• CPC Class Codes: C08F 2/26 anionic
• CPC Class Codes: C08F 212/08 Styrene
• CPC Class Codes: C08F 218/08 Vinyl acetate
• CPC Class Codes: C08F 220/06 Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
• CPC Class Codes: C08F 220/1804 C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
• CPC Class Codes: C09D 133/06 of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
• CPC Class Codes: C09J 133/06 of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
• CPC Class Codes: C09K 21/14 Macromolecular materials
• CPC Class Codes: D04H 1/4209 : Inorganic fibres
• CPC Class Codes: D04H 1/587 : characterised by the bonding agents used
• CPC Class Codes: D04H 1/64 : the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
• CPC Class Codes: Y10T 428/31935 : Ester, halide or nitrile of addition polymer

Abstract

Use of an aqueous polymer dispersion comprising at least one polymer (P), obtainable by free radical emulsion polymerization of at least one ethylenically unsaturated monomer (M1) and from 20 to 75% by weight of tert-butyl (meth)acrylate, as a binder in construction chemistry products.

Claims

1. An aqueous polymer dispersion, comprising:

a polymer (P), obtained by a process comprising polymerizing, by free radical emulsion polymerization, (1) an ethylenically unsaturated monomer (M1), and (2) from 20 to 75% by weight of tert-butyl (meth)acrylate.

2. A paint, comprising the dispersion of claim 1.

3. A render, comprising the dispersion of claim 1.

4. A composite heat insulation system, comprising the dispersion of claim 1.

5. A construction adhesive, comprising the dispersion of claim 1.

6. A filling compound, comprising the dispersion of claim 1.

7. A method of improving a fire behavior of a material, the method comprising:

producing the material with the dispersion of claim 1.

8. The dispersion of claim 1,

wherein a content of tert-butyl (meth)acrylate in the dispersion is from 25 to 60% by weight.

9. The dispersion of claim 8,

wherein the content of tert-butyl (meth)acrylate in the dispersion is from 30 to 45% by weight.

10. The dispersion of claim 1,

wherein a content of the monomer (M1) is in the range from 25 to 80% by weight, based on a total weight of monomers in the emulsion polymerization.

11. The dispersion of claim 1,

wherein a main monomer proportion of the monomers monomer M1 (HM) is at least 50% by weight, based on a total weight of the monomers monomer (M1).

12. The dispersion of claim 11, wherein the main monomer proportion (HM) is selected from the group consisting of methyl methacrylate, n-butyl acrylate/vinyl acetate, n-butyl acrylate/methyl methacrylate/vinyl acetate, n-butyl acrylate/ethyl acrylate/vinyl acetate, and n-butyl acrylate/methyl methacrylate/ethyl acrylate.

13. The dispersion of claim 11, wherein a secondary monomer proportion of the monomer M1 (NM) comprises at least one monomer selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, maleic anhydride, acrylamide, and methacrylamide.

15. A composite heat insulation system (CHIS), comprising:

the polymer dispersion of claim 1,

an adhesive layer,

a heat insulation board,

a filling compound with embedded reinforcement,

a finish coat, and

a further customary assistant.

16. A render, comprising:

the polymer dispersion of claim 1;

a wetting agent, a dispersant, or both;

an inorganic pigment, an inorganic filler, or both; and

a further customary assistant.

17. The render of claim 16, wherein the further customary assistant comprises at least one customary assistant selected from the group consisting of a preservative, an antifoam, a thickener, a film forming assistant, and a water repellant.

18. The dispersion of claim 11,

wherein the main monomer proportion of the monomer M1 (HM) is at least 60% by weight, based on a total weight of the monomer (M1).

19. The dispersion of claim 18,

wherein the main monomer proportion of the monomer M1 (HM) is at least 80% by weight, based on a total weight of the monomer (M1).

20. The dispersion of claim 1, wherein the polymerizing comprises polymerizing with a crosslinking agent.

14. A paint, comprising:

an aqueous polymer dispersion, comprising at least one polymer (P), obtained by a process comprising polymerizing, by free radical emulsion polymerization, an ethylenically unsaturated monomer (M1);

an inorganic filler, an inorganic pigment, or both;

a customary assistant; and

water.