DE2113046A1 - Cement masses - Google Patents

Description

DESCRIPTION based on the patent application of

IMPERIAL CHEMICAL INDUSTRIES LIMITED, London SW 1, Great Britain,

regarding "cement mas s on"

Addition Ku patent. ο (registration P 19 24 468.9 PRI (BITAT: March 18, 1970, UK

The present invention relates to an improvement or modification of the subject matter of the patent ο <= _{0 o} <>. ο (Az ₀ : P 19 24 468o9).

The main patent relates to compositions of matter which as essential ingredients a hydraulic cement, a silica filler, water and an organic one Have compound »which has a plurality of Iaocyanat-

109843/1597

has groups.

It has now been found that improved flexibility and Resistance to water of the specified compositions of matter can be granted if bitumen is added to this.

The present invention relates alao compositions of matter, which all essential ingredients a hydraulic cement, a silica filler, tfasaer, siturnen and a containing organic polyisocyanate

Bitumen is the residue of the distillation of crude petroleum understood which essentially aliphatic nature is essentially free of isocyanate-reactive Groups is »

Bitumen types having a low viscosity can directly are added to the present material compositions, however, for very viscous and hard types of bitumen with Kadel penetration values of 350 or less, the incorporation is the same in the form of a solution or emulsion is required. The needle penetration valueso correspond to those as determined by the Institute of Petroleum Test Method IP 49/67.

As examples of solvents that can be used to dissolve the very viscous or hard types of bitumen, any of those solvents may be mentioned, which are inert to isocyanate groups and which are commonly used in urethane lacquer systems,

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BATH ORIGINAL

For example, esters, ketones and hydrocarbons. »It is advantageous to add a water-soluble solvent such as ethyl ethyl ketone or 4-methoxy ~ 4-niethylpentan-2-one to the solvent system« Other suitable solvents are ethyl acetate, butyl acetate, ethyl acetate, methyl isobutyl ketone , Cyclohexanone and aromatic hydrocarbon solvents such as toluene or XyIoI ₀

Bitumen are also available ic eiaulgierter form under Vei · - application of both anionisciien and cationic Bmulgierungsmitteln which a nominal Bitian.engeh3.lt of up to a maximum of from 60 to 62 wt _o - #, and contain these emulsions can also sur incorporation bitumen can be used in the substance compositions according to the invention _o

The term "hydraulic cement" is used herein in the usual Meaning used to denote the type of building materials that be applied in a mixture with water and then as a result of physical or chemical conversion. solidify or set, whereby that water is consumed. This expression Auseer Portland cement also includes:

1- fast-setting cements, characterized by a high content of alumina;

2o low-fired cements, characterized by a high content of dicalcium silicate and tetracalcium aluminoferrite and a low content of tricalcium silicate and tricalcium aluminate;

3. aulfatbeetäödige cements, characterized by a

1098A3 / 1537

unusually high content of calcium silicate and Dicalcium silicate and an unusually low content to TricalciumalumiRat and Tetracalciumaluminofarritj

Blast furnace portland cement, characterized by a mixture from Portland cement clinker and granulated slag;

5ο Wall cements, characterized by mixtures of Portland cement and one or more of the following ingredients; slaked lime, granulated slag, powdery Limestone, colloidal clay, diatomaceous earth or other finely divided silica farms, calcium stearate and Paraffin;

6c Fatur cements. characterized by material from the alluvial land of the Lehigh Valley, USA;

7. Lime cements, characterized by pure calcium oxide or impure form with or without clay-like material;

8. Gypsum cement, characterized by the addition of 5 to 10 io gypsum to lime:

9ο pozzolan cement, characterized by a mixture of Pozzolan earth, Traßskieeelgur, pumice stone, tuff lime, Santorini earth or granulated slag with lime mortar;

1NC CalciumsulfQnatzemente, characterized by a function of the hydration of calcium sulfate, z _f B "plaster, cement and marble Keenescher Paria gypsum.

109IO / 1S97 BADOHONAL

As silica fillers that can be used be sand and silica with a low clay content called, which are preferably washed and a mean particle size within the range from 3 »8'i to 0.0076 cm own, although also particle sizes outside this Limits can be used for special purposes can"

Organic polyisocyanates that can be used include tolylene diisocyanate and phenylmethane diisocyanate, as well as uretedione or isocyanurate polymers of the same type and isocyanate-terminated polyurethanes _{: <} which are produced by reacting an excess of an organic diisocyanate with a functional isocyanate-reactive compound such as a glycol or a higher polyhydric alcohol, amino alcohol or polyamine, a polyester or polyester amide or polyether can be obtained. It is also possible to use the polyisocyanate compounds which are referred to as "crude HDI" and which consist of a mixture of diphenylmethane diisocyanate with methylene-terminated polyphenyl polyisocyanates with a higher functionality, and which are obtained by phosgenation of the mixed polyamines obtained by Condensation of formaldehyde with aniline in the presence of hydrochloric acid.

Although the organic polyisocyanates in the absence of other isocyanate-reactive compounds can be used with the exception of water, which is an essential Is part of the compositions of matter of the invention, it is preferred to also use an organic isocyanate-reactive

10 9 8 4 3/1597

To add the compound to the compositions of matter, as this results in the shrinkage when the compositions of matter set is decreased.

As examples of organic iaocyanatreaktiven compounds which may be employed herein eeien: multivalent alcohols, amino alcohols, polyamines, polyester and polyester and drying oils and non-drying oil-modified alkyd resins, however, it is preferable to use a di- or trivalent polyether to, having an equivalent weight of 100 to 1500 or the reaction products of castor oil with a hard resin, which are defined as the products obtained by heating castor oil with a resin that is a rosinate of a metal selected from from group Ha of the periodic table or a condensation product of a resin with

(1) at least one polyhydric alcohol, or

(2) at least one polyhydric alcohol and at least one optionally substituted phenol / formaldehyde resole resin, or

(3) at least one polyhydric alcohol and at least one 0 (, ß-unsaturated dicarboxylic acid or the .Anhydride of the same _o

All examples of rosinates of metals selected from group Ha of the periodic table, which can be reacted with the castor oil, are calcium rosinate and

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BATH ORIGINAL

Bar iurar os inat gen aunt *

As examples of ineffective A3.Roholes _r which either alone or in combination with an optionally substituted phenol / formaldehyde resin; or a © oss-unsaturated dicarboxylic acid or anhydride thereof may be condensed may be mentioned: G-lycerin, pentaerythritol trimethylol propane and sorbitol _f

Resins are the alkali-catalyzed reaction products of a col of a phenol with at least one mole of formaldehyde . The phenol used in Sweckroäseiger and preferred for the preparation of the Reaol resins is phenol itself, however, t'ici; other phenols and alkyl-substituted phenols, for example p-butylphenol, p-octylphenol and p-alkyl-substituted phenols are generally used.,

As examples of o (, ß-unsaturated dicarboxylic acids and anhydrides the same, soft together with the rosin resin a polyhydric alcohol of the ob ^ r- ai ^ geüßbenen ivrt condens- f can be sated are genes, fumaric acids and maleic anhydride c

The above-mentioned reaction of the castor oil with the resin is carried out at a higher temperature, for example at a temperature of 235 to 24G ⁰ C. from ^! / 2 to 2 hours long

Dag castor oil and daet resin can be used in the proportions of 99 ^ to 1: 9S Gev- divisions are applied, and the pre-

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BATH ORIGINAL

ferred range is between 95s5 to 20: 8 weight parts by _o ,,

The proportions of the various constituents of the present composition of matter can be changed to a large extent
will. So for 100 parts by weight of cement from 1 "to 10,000 parts by weight of bitumen, from 10 to 20,000 parts by weight of silica filler, from 10 Ms 200 parts by weight of water, from 5" to 5,000 parts by weight. Parts of the resin-forming components, defined as
organic polyisocyanate plus isocyanate-reactive compound, and are used from 0 to 400 parts by weight _o solvent.

Preferred amounts are from 10 to 6,000 parts of bitumen, 50
up to 12,000 parts PUlIatoff, 20 to 100 parts water, 10 bie
4,000 parts of urethane resin and 0 to 200 parts of solvent,
The Stoffzusatamensetsungen geiaäss the invention can be used as self-balancing or good flowing out flooring materials are used and they are _o superior to the commonly used Zementbodenbelagmasaen or other resin-bonded cement masses by their setting rate according to their flowability This StoffnusaTtmensetzungen
make it possible to produce floor coverings that are sufficiently stable that they can be walked on after 1 to 2 hours after laying and withstand an impact test from DEP 1083, method 17, after curing for 24 hours.

The invention is explained in more detail in the following examples, without being restricted thereto, the parts and percentages being based on weight.

ΨΤ

1Ü98A3 / 1597 BAD ORIGINAL

example 1

15 'cure of an oxypropylated glycerine with a hydroxy 1 value of 535 n »g KOH / g, 100 parts of an anionic bitumen emulsion with a bitumen content of 60 to 62 # (based on BS 434: 1960), 200 parts of sand with a grain size of 0.05 up to 0.0076 cm and 100 parts Portland cement are mixed together. 100 parts of a 70 # solution are added to the mixture of polyisocyanate (prepared according to the method to be described) added, multiple further mixed treatment a fast-setting composition is obtained which is firm enough to last 45 minutes after spreading a layer of 1.27 cm thick to be committed.

The polyipocyanate used in this example can be prepared by treating a mixture of tolylene diisocyanate (1 mol), trimethylolpropane (0.197 mol) and butylene glycol (0.159 mol) at 60 ^° C. for 2 hours in the presence of half their combined weight of a 1 : 1-mixture of beta-ethoxyethyl acetate and xylene are heated, 0.029 mole of a propoxylated glycerol Rait a molecular weight \ 3000 are added and the heating is continued at 60 C for 4 hours. A sufficient amount of xylene is then added to make a 70 # solids solution.

Example 2

100 parts of portland cement, 200 parts of sand, 20 parts of one oxypropylated glycerine with a hydroxyl value of 165 mg ΣΟΗ / g, 8 parts of an oxypropylated glycerine with a Hydroxyl value of 535 mg KOH / g and 25 parts of water will be mixed together ^ When the mixture is perfect,

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BATH

100 parts of a 70 ^ IGSN solution of a Polyi8οcyanate, as -Uses according to Example 1, and 120 parts of 85 followed by solution in acetone sines bitumen with a Hadeleindringung of 90 "to 100, preferably veraischt added, and the mixture is further A rapidly setting compound is obtained which, when laid 1.27 cm thick, sets quickly, and two * hard enough to be walked on after 1 hour *

Claims;

109843/1597

Claims (1)

PATENT CLAIMS: 1 ο) cement mass according to patent. "". _c .. <= (As .: P 19 24 468.9) »characterized in that it contains hydraulic cement, a silica filler, water, bitumen and an organic polyisocyanate as essential components. 2o cement mass according to claim 1, characterized in that that the hydraulic cement is selected from portiarid cement, rapidly connecting Zem-sniren. low burned Cements, sulphate-resistant cements, Portlandhoehofenzement, Wall cements, natural cements, Ealkaementen, Belenitzeraent, pozzolanic cement and calcium sulphate name, 3. cement maize according to claim 1 or 2, characterized in that that the silica filler has a particle size within the range of 3 »-81 to 0.0076 cm. 4- cement masee according to one of claims 1 bit * 5, characterized characterized that ale additionally an isocyanacreactive contains organic compound. 5c cement mass according to claim 4, characterized in that that the isocyanate-reactive compound is a bivalent or trivalent Polyethers with an equivalent weight of 100 to 1500 is. 6. Cement mass according to claim 4, characterized in that the isocyanate-reactive compound is the reaction product of castor oil with a hard resin, which is the rosinate of a metal selected from the group Ha 109843/1597 BADORLGiNAL - 12 ~ of the periodic table or the reaction product of a resin with (1) at least one polyhydric alcohol, or (2) at least one polyhydric alcohol and at least one substituted phenol / formaldehyde kesol resin or (3) at least one polyhydric alcohol and at least one Of ₁ ß-unsaturated dicarboxylic acid or the anhydride thereof. 7 · Cement mass according to one of claims ί to 6, characterized it is known that the bitumen has the material composition is added in the form of a solution in a solvent »which is inert towards the isocyanate groups or a aqueous emulsion is " 8, cement mass according to any one of claims 1 to 7, which 10 to 6000 parts by weight of bitumen, 50 to 12,000 parts Silica filler, 20 to 100 parts of water, 10 to 4000 Parts resin-forming components and 0 to 200 parts of an inert solvent per 100 parts of hydraulic cement contains » . UM.H FINGHl DIPL-JüM.ltMM · MM - IMe.S. «M BATH ORIGINAL 09843/1597