US 8,685,159 B2Granted

Process for forming an adhesive bond

OwnerGerald Kratschmer, Jorg Wilkeninventors

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Abstract

An adhesion bond strength enhancer for cementitious adhesive mortar is disclosed. The adhesion enhancer improves bond strength between the mortar and relatively hydrophobic plastic material, such as extruded polystyrene boards and expanded polystyrene boards of the type generally employed in Exterior Insulation Finishing Systems (“EIFS”). Preparation of non-caking, free-flowing, solid dialkyl sulfosuccinate compositions for use as the adhesion enhancer is also disclosed. The adhesion enhancer is attractive for large-scale application in mineral mortar dry-mixes or other solid construction materials. The invention can be used to improve the strength of an adhesive bond between a) gypsum based plaster or stucco and concrete or bricks, b) tile adhesives and concrete, and c) mineral mortars on polystyrene boards, among others.

Claims20

Dependent claims

A process for forming an adhesive bond between a mortar composition and an article composed of a polymer plastic material, which process comprises:

providing a mortar composition that includes mortar and a surfactant composition;
which surfactant composition includes
a) about 30 to about 75 weight percent of a surfactant selected from the group consisting of alkyl sulfosuccinates, salts of alkyl sulfosuccinates, and mixtures thereof;
and
b) carrier particles composed of an absorbent material selected from the group consisting of calcium carbonate, calcium silicate, silicon dioxide, kaolin, and mixtures thereof;
which carrier particles have a mean average particle size of about 0.1 to about 1000 micrometers and a capacity for carrying an amount by weight of the surfactant that is about 0.2 to about 5 times the weight of the carrier particles;
blending the mortar composition with water to produce a wetted mortar composition;
and
establishing physical contact between the wetted mortar composition and an article composed of a polymer plastic material at conditions effective for curing of the mortar composition, thereby forming an improved adhesive bond between the mortar composition and the article.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/018,363Filed 4 Sep 2013 · continuation
Priority: 10 Dec 2010
Published: US 2013/0344250 A126 Dec 2013
Granted: 1 Apr 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

C04B 16/00
Use of organic materials as fillers
B32B 5/18
Layered products characterised by the non- homogeneity or physical structure , i.e. comprising a fibrous, filamentary, particulate or foam…
B32B 13/04
Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material: comprising…
B32B 13/045
Comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different…:…

Family

Application12/928,393Parent of this continuation · filed 10 Dec 2010
US 2013/0344250 A1Pre-grant publication · published 26 Dec 2013
US 8,529,693 B2Parent of this continuation
US 2012/0148826 A1Published application
US 8,685,159 B2This patent

From the US filing history. Foreign family members aren’t listed.