Carlos N Nones

US Patent:

20120101186, Apr 26, 2012

Filed:

Dec 9, 2010

Appl. No.:

12/964198

Inventors:

Carlos Nones - Riverside CA, US
Pedro Paredes - Moreno Valley CA, US

International Classification:

C09D 133/08

US Classification:

523122, 524425, 524 35

Abstract:

A dry powder composition for preparing a dry form of an acrylic finish is provided. The dry powder composition includes: calcium carbonate filler, coalescing aid, pH adjuster, and an acrylic-based re-dispersible polymer in powder form. In various embodiments, aggregate, silica sand, titanium dioxide, cellulose thickener, biocide, clay, cellulose fiber, mica filler, and/or defoamer are added. The dry powder composition can further comprise a hydrophobic agent. The dry powder can be mixed with a volume of water to produce a wet coating for application to a substrate.

US Patent:

20130210963, Aug 15, 2013

Filed:

Jul 13, 2011

Appl. No.:

13/809519

Inventors:

Veronique Dantin - Saint Quentin Fallavier, FR
Gerard Leplay - Saint Quentin Fallavier, FR
Paulo Goncalo - Saint Quentin Fallavier, FR
Carlos Nones - Riverside CA, US
Pedro Paredes - Riverside CA, US

Assignee:

PAREXGROUP SA - Issy Les Moulineaux

International Classification:

C09D 133/06

US Classification:

524 5, 524376

Abstract:

The invention relates to improved non-efflorescing cement-free and water-dispersible powder building material compositions comprising a homopolymer or copolymer as binder, useful for the preparation of wet formulations of plasters grouts, waterproofing coatings or mortars for the construction and the civil engineering industry. Redispersible dry composition of polymer finish comprising: a powdery organic binder included a polymer obtained by spray-drying or lyophilisation of a dispersion containing said polymer and a protective colloid; a deprotection agent; a specific adsorbent filler; and/or a load; and/or a water retentive agent; and/or a mineral rheological agent; and/or a defoamer; and/or a biocide; and/or a pigment. The invention also refers to the methods of preparation of these dry compositions and wet formulations, the application of these latter onto the surface of buildings or civil engineering works, the so obtained coatings as well as the so coated elements. The applications of these wet formulations can be also hardened joints or other hardened products for the construction as well as hardened mass objects. All these hardened products are remarkably water-resistant, non efflorescent and easy to obtain.