Use of inorganic materials for producing composites

Patent metadata

Field	Value
Publication number	US-9631766-B2
Application number	US-201314384936-A
Country	US
Kind code	B2
Filing date	Mar 11, 2013
Priority date	Mar 13, 2012
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A method of producing composites from inorganic materials by processing with thermoplastic forming techniques mixtures containing one or more inorganic, fine residual materials and one or more polymers based on ethylenically unsaturated monomers in the form of protective colloid-stabilized, water-redispersible polymer powders, wherein the inorganic, fine residual materials are based on inorganic materials selected from the group consisting of gypsum, lime, talc, silicas, kaolins, silicates and titanium dioxide, and wherein the composites are based on from 5 to 80% by weight of polymers based on ethylenically unsaturated monomers and from 20 to 95% by weight of inorganic, fine residual materials, based on the total weight of polymer based on ethylenically unsaturated monomers and inorganic, fine residual materials.

First claim

The invention claimed is:

1. A method of producing composites from inorganic materials, comprising the steps of processing by thermoplastic forming techniques mixtures containing one or more inorganic, fine residual materials and one or more polymers based on ethylenically unsaturated monomers in the form of protective colloid-stabilized, water-redispersible polymer powders, wherein the inorganic, fine residual materials are based on inorganic materials selected from the group consisting of gypsum, lime, talc, silicas, kaolins, silicates and titanium dioxide, and wherein the composites are based on from 5 to 80% by weight of polymers based on ethylenically unsaturated monomers and from 20 to 95% by weight of inorganic, fine residual materials, based on the total weight of polymer based on ethylenically unsaturated monomers and inorganic, fine residual materials.

2. The method of claim 1 , wherein the inorganic, fine residual materials are further based on inorganic materials selected from the group consisting of oxides, hydroxides, carbonates, silicates, sulfates and sulfides of metals or semimetals.

3. The method of claim 1 , wherein the inorganic, fine residual materials are obtained during grinding, comminution, machine milling, sawing, drilling, peeling or cutting or as abrasion from inorganic materials.

4. The method of claim 1 , wherein the polymers are based on one or more ethylenically unsaturated monomers selected from the group consisting of vinyl esters, (meth)acrylic esters, vinylaromatics, olefins, 1,3-dienes and vinyl halides.

5. The method of claim 1 , wherein one or more organic fillers and/or one or more further inorganic fillers which are different from the inorganic fine residual materials are used.

6. The method of claim 1 , wherein the mixtures are processed by means of thermoplastic forming techniques selected from the group consisting of extrusion, injection molding, pressing, pelletization and calendering.

7. The method of claim 1 , wherein the composites comprise moldings, boards, sheet-like structures or rolled-up goods.

8. The method of claim 1 , wherein the composites comprise thermal or acoustic insulating or damping materials.

Assignees

• Wacker Chemie Ag

Inventors

• Bienerth Holger
• Eder Klaus-Jürgen
• Weber Karl

Classifications

• Y02W30/91

  Use of waste materials as fillers for mortars or concrete · CPC title

• G10K11/165

  Particles in a matrix · CPC title

• B29K2027/00

  Use of polyvinylhalogenides {or derivatives thereof} as moulding material · CPC title

• C04B2103/0057

  added as redispersable powders · CPC title

• C04B26/08

  containing halogen · CPC title