Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Reexamination Certificate
1998-11-16
2001-07-17
Brunsman, David (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
C106S177100, C106S197010, C106S730000, C106S780000, C106S805000, C106S014110, C106S014210, C106S018110, C106S018120, C106S823000
Reexamination Certificate
active
06261355
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a binder adjuvant used in construction and engineering. The aim of this adjuvant is in particular, when it is applied with a binder to a surface of a component of a structure:
to produce leaktightness to water, whether clean or otherwise, and to hydrocarbons;
to produce good plugging of cracks;
to produce a layer which replaces the mortar;
to produce a coating prior to carrying out painting work on surfaces to be painted;
to produce an exterior paint layer on coating surfaces;
to produce perfect adhesive bonding and adhesion between the surface and the covering (marble, tiling, ceramic, brick, and the like);
to produce a layer which is stable to fire and thus to ensure protection against fire;
to produce a stiff and lasting layer which adheres to certain materials and in particular to cellular polystyrene surfaces;
to produce, on a metal surface, an antirust insulating layer and, at the same time, to have an acceptable finish.
DESCRIPTION OF THE RELATED ART
Various methods are used to achieve leaktightness. However, the results obtained are not always satisfactory or lasting, in general. Furthermore, these methods are generally relatively expensive. Such methods for rendering leaktight often require a qualified workforce and generally a highly specific and special cement when the latter represents one of the constituents of the insulating material.
The plugging of cracks is not always carried out efficiently according to the materials used; furthermore, the plugging is generally expensive to carry out.
It is essential in engineering to prepare several consecutive layers of mortar on surfaces, in order to carry out other work, such as that necessary before coating layers are prepared, which requires not insignificant work and time.
It is essential in engineering to prepare coating layers on surfaces, in order to carry out other work, such as painting. However, this requires a relatively large amount of work, the coating layer being characterized by its brittleness and exhibiting certain difficulties relating to smoothing.
When exterior painting is carried out, a layer is produced which sometimes exhibits certain disadvantages, such as weak durability, permeability, weak resistance to ultraviolet rays and soiling by pollution.
The preparation of a layer for the adhesive bonding of coverings (marble, tiling, ceramic, brick, and the like) requires cement adhesive, which is relatively expensive and which is not always available in certain Third World countries.
The preparation of a layer which is stable to fire requires a relatively expensive substance which is not always available in certain Third World countries.
The preparation of polystyrene panels requires a covering, given the brittleness of this substance. The coverings used do not generally give the characteristics of durability, of leaktightness and of resistance to fire simultaneously.
The preparation of an antirust layer on a metal surface requires a relatively expensive substance which is not always available in certain Third World countries.
SUMMARY OF THE INVENTION
The adjuvant according to the invention, when it is combined with a binder, and which is subsequently known as “substance”, solves the problems set out above and provides the following advantages.
The substance makes it possible to obtain complete and lasting leaktightness to water, whether clean or otherwise, and to hydrocarbons, in contrast to that obtained with the existing methods. This substance is more cost-effective and easier to prepare. It can comprise an immense range of products and in particular an immense range of cement powder.
The substance makes it possible to obtain lasting and cost-effective plugging.
The substance makes it possible to obtain a layer which replaces the mortar. This layer is very easy to prepare, given that it is very easy to handle.
The substance makes it possible to obtain a coating prior to carrying out painting work on surfaces to be painted. This coating is more cost-effective and easier to prepare. The smoothing is very easy to carry out. Furthermore, the coating is hard after drying, in contrast to conventional coatings, which are very brittle.
The substance makes it possible to obtain an exterior paint layer which is impermeable, lasting, resistant to ultraviolet rays and easy to clean and to maintain.
The substance makes it possible to obtain very good adhesive bonding and perfect adhesion between the surface and the covering (marble, tiling, ceramic, brick, and the like). This substance is more cost-effective than conventional cement adhesives.
The substance makes it possible to obtain a layer which is stable to fire and thus to provide protection against fire. This substance is more cost-effective and the constituents are generally more readily available commercially than the other substances, in particular in Third World countries.
The substance makes it possible to obtain, on the surface of a cellular polystyrene panel, a covering which is simultaneously lasting, leaktight and resistant to fire.
The substance used makes it possible to obtain an antirust insulating layer on a metal surface, and simultaneously to have an acceptable finish, which is cost-effective.
The invention is also highly effective in rendering leaktight a mortar layer, a coating layer, a paint layer, an adhesive layer or a protective layer on cellular polystyrene.
Three or four of these objectives are often required simultaneously and they are thus achieved with the same substance, which multiplies the savings achieved; in addition, it is possible to obtain protection against rust and fire.
The substance which is the subject-matter of our invention is composed of a mixture which, mixed with products and in particular cement powder, allows us to obtain the layer which provides the leaktightness, which replaces the mortar and which provides the coating, the painting, the adhesive bonding and the insulation against fire and rust.
This mixture is formed of four constituents:
Drinking water is mixed with Tylose H 10000 (viscosity) powder formed of hydroxyethylcellulose from the Hoechst plant of German origin or of its functional equivalent; this mixture is mixed with an antifoaming liquid, Foamex DKC of Info-Tan trademark, sold by Nueva Tanex S.A. in Spain, or its functional equivalent; titanium dioxide, as colorant, in order to provide an offwhite colour, or another colorant product, depending on the colour desired, is optionally added to the product thus obtained,
Furthermore, a subject-matter of the invention is a binder adjuvant used in construction, characterized in that it comprises, in aqueous solution, a mixture of a water-soluble cellulose ether and of an antifoaming agent.
REFERENCES:
patent: 3598642 (1971-08-01), Huang et al.
patent: 5424099 (1995-06-01), Stewart et al.
patent: 0 200 471 (1986-11-01), None
patent: 0 375 332 (1990-06-01), None
patent: 0 460 744 (1991-12-01), None
patent: WO 93/10054 (1993-05-01), None
Yamagishi et al., “Cement Mortar Lining Mixtures For Metal Pipes”, Chemical Abstracts, vol. 88, No. 18, May 1978, XP000059664.*
“Anhydrite Compositions for Slabs”, Chemical Abstracts, vol. 100, No. 20, May 1984, XP000188899.*
“Inorganic Coating Composition”, Chemical Abstracts, vol. 101, No. 20, Nov. 1984, XP000188744.
Kassem Nizar Al
Rifai Haisan Al
Brunsman David
Kassem Nizar Al
Young & Thompson
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