Fire protection composition and use thereof

Patent metadata

Field	Value
Publication number	US-10927301-B2
Application number	US-201916515965-A
Country	US
Kind code	B2
Filing date	Jul 18, 2019
Priority date	Apr 16, 2014
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

The invention relates to a fire protection composition comprising: a binder based on an aqueous, or solvent-based polymer dispersion; fire protection additives comprising a physically acting expanding agent, a compound containing phosphorus, selected from among salts or esters of phosphorus oxyacids, and glass fiber; and an acid-resistant, inorganic filler. The invention also relates to the use of said composition as a sealing mass, in particular as a fire protection sealing mass.

First claim

The invention claimed is:

1. A composition, comprising:
(a) a binder based on an aqueous- or solvent-based polymer dispersion;
(b) fire protection additives comprising:
(i) a physically acting expanding agent,
(ii) a compound containing phosphorus, selected from the group consisting of a salt of a phosphorus oxyacid and an ester of a phosphorus oxyacid, in a quantity of approximately 5 to 15% by weight relative to the total weight of the composition; and
(iii) free glass fibers having a length of 2 to 12 mm; and

(c) an acid-resistant, inorganic filler selected from the group consisting of kaolin, BaSO 4 , CaSO 4 , and mixtures thereof;
provided that the composition is free of zinc borate and acid-labile fillers.

2. The composition according to claim 1 , wherein the phosphorus oxyacid is selected from the group consisting of orthophosphoric acid, pyrophosphoric acid, triphosphoric acid or polyphosphoric acid.

3. The composition according to claim 2 , wherein the compound containing phosphorus is selected from the group consisting of monoammonium phosphate, diammonium phosphate, ammonium phosphate, melamine resin phosphates, potassium phosphate, melamine phosphate and melamine polyphosphates.

4. The composition according to claim 1 , wherein the physically acting expanding agent is selected from among graphite intercalation compounds and/or sheet silicate intercalation compounds.

5. The composition according to claim 4 , wherein the physically acting expanding agent is selected from among graphite intercalation compounds.

6. The composition according to claim 1 , wherein the binder based on an aqueous- or solvent-based polymer dispersion comprises an acrylate copolymer dispersion.

7. The composition according to claim 1 , which also contains additional additives and/or fillers.

Assignees

• Hilti Ag

Inventors

• Muenzenberger Herbert
• Simon Sebastian
• Woelfle Ingrid

Classifications

• C09J9/00

  Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks (C09J7/00 takes precedence) · CPC title

• C08L33/00

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers · CPC title

• C08K2003/265

  Calcium, strontium or barium carbonate · CPC title

• C08K3/04

  Carbon · CPC title

• C08K7/14

  Glass · CPC title