Composition of moulding including/understanding a gelatinizing agent primarily, for example a polyvinyl polyester and chloride.

AS AFRICAN AND MALAGASY

INDUSTRIAL PROPERTY

P. 887

Yaounde (Cameroon) Patent International Patent Classification: c04 № 01172

o.Cm ^ P.I.

Requested 30 December 1964 to 23 20 min. to the H-O I-m P. A.

(PP.V. n° 51,224) called by the business: InterbyggShwan Showroom ", residing in Norway.

Delivered 25 January 1969, published at Official ballot no. 3 of 1968. Priority: Patent application deposited in Norway under the no. 133,439 16 October 1959 on behalf of the applicant.

The present invention relates to a composition

molding constituted by a mass, or gangue

plastic and mineral filler

in granulated form.

Compositions for the body molding

formed and consisting of plastics types - particle stabilizer

exp are already known in the technique, for particle stabilizer -

exp goals. The plastic compounds heretofore known hand -

with it are relatively expensive to prepare and

require the addition of a curing agent for

cause the hardening.

The present invention concerns a composition

which molding preparation is cheap and that

does not require the addition of an agent necessarily

curing to cause hardening; the MOC -

position has high binding capacity simultaneously

and is therefore would be key

can body formed for various purposes by

addition of various types of fillers.

According to the invention, these aims are

by the use of a molding composition comprising

a mixture of a gelatinizing agent for plastics,

for example a polyester, and polyvinyl chloride,

mixture to which is added a mineral filler in

granulated form, the polyvinyl chloride used being

preferably polyvinyl chloride without Elements -

particular physical characteristics.

The molding composition of the invention is thus

characterized by a mixture of a gelatinizing agent

for plastics e.g. polyester, and a chlo -

polyvinyl fluoride without physical characteristics

the particular and a mineral filler in

granulated form. The molding composition of the inven -

except can contain polyvinyl chloride in Mullen -

tity of 1 to 70% by weight and if desired, can be

add 1 to 30% by weight, based on the binder plasti -

that, of diluent. If the molding composition is to be

used for the preparation of shaped bodies colored,

a coloring agent may be added. If desired is

a curing agent may be added to accelerate the

curing at room temperature. The composition

molding of the invention cures at room temperature

very quickly by adding, for example,

3/4 % of peroxide-of MEK (methyl ethyl ketone) (- cataly

sor) and 1/2 % cobalt naphthenate (accelerator) relative to the plastic binder, the catalyst and the accelerator are added separately and careful under stirring to obtain a uniform dispersion of the agents.

The molding composition of the invention can be shaped into molded bodies, the mineral filler being from about 1 to granulated about 9 parts by weight and having a particle size of up to 10 cm² . As the plastic used in the composition is colorless, if the dye is not added minerals of the filler are very apparent from view in products formed.

Molded products obtained from the molding composition, for example floor coatings, plates, sheets and other objects, can be easily polished, the ability to bind to the mineral particles being about four times greater than the resistance of the mineral, and the compressive strength of the molding composition being adjusted in correspondence with the degree of hardness of different minerals, for example by adding a soft polyester, as the "O-type polytite" or a neighbor.

The molding composition is particularly useful for preparing coatings for floors, walls and stair step, because of the coating layers may be laid in place, seamless, or by the use of plates or tiles prefabricated.

The invention is illustrated below by an example tile manufacturing.

Used a mass consisting of 1.0 kg of the gelatinizing agent "polytite kind 8.000", 0.2 kg of polyvinyl chloride "Norvinyl" without particular physical characteristics and also used 15 C/O styrene as a diluent. Ingredients are mixed in a mixer of known type, for example in a mixer or in a turbine mixer agitator. The gelatinized mixture within about 5 minutes at room temperature 20 usual °g. In this mass or matrix of plastic is introduced under stirring 5.3 parts by weight of marble having the desired particle size, say up to 10 cm² . This mass is