Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
  • A63C19/06—Apparatus for setting-out or dividing courts

Definitions

• the invention relates to a new composition of soil tracing material.
• such a material comprises a basic compound in the divided state (sulfate, carbonate) and an organic adjuvant consisting of a triazine compound (melanin or substituted derivative of melanin).
• the material comprises, in addition to a basic compound, an animal chemical binder, namely glue powdered from rabbit skin.
• the material comprises water, Troyes white, butanol and a binder based on acrylic dispersion, in certain proportions.
• the material comprises water, coarse powdered calcium carbonate, white pigment and a binder such as a resin.
• a binder such as a resin.
• the subject of the invention is therefore a soil tracing material which, while having the qualities of the materials of this type already known has excellent whiteness and excellent hiding power.
• the invention also relates to a material for tracing the ground which allows novel developments such as the production of colored, fluorescent, phosphorescent traces.
• a soil tracing material according to the invention comprises of the order of 20% 70% by weight of at least one slurry based essentially on particles of calcium carbonate and / or equivalent, at least one of which significant part of these has an average statistical diameter at most of the order of 2 microns and a charge of particles compatible with those of calcium carbonate and / or equivalent and of which at least a significant part of these has a diameter average statistics at least of the order of 5 microns.
• the tracing material comprises of the order of 50 to 70% by weight of at least one slurry based essentially on particles of calcium carbonate and / or equivalent having an average diameter at most of 2 microns and up to around 30% by weight of a charge of particles compatible with those of calcium carbonate and / or equivalent having an average statistical diameter of between 5 and 10 microns.
• the tracing material consists essentially of at least one slurry based essentially on particles of calcium carbonate and / or equivalent of which at least a significant part of these has an average statistical diameter at most of l 'order of 2 microns and a charge of particles compatible with those of calcium carbonate and / or equivalent, a significant part of which has an average statistical diameter of at least about 5 microns.
• the invention relates to a ground marking material intended to be applied to the ground, in particular a ground. grassy, to make visible traces, such as those existing on sports or playgrounds.
• the invention relates both to the raw material stored for its subsequent use as well as the material already used and the methods of implementation.
• This material is in a fluid form (more or less liquid or more or less pasty) and it comprises -or alternatively and consisting essentially of -one or more slurry based essentially on particles of calcium carbonates and / or equivalent including at minus a significant part of the particles - or alternatively of which all of the particles - has a mean statistical diameter at most of 2 or of the order of 2 microns and and a charge of particles of a material compatible with that of the particles of the slurry and of which at least a significant part of the particles - or alternatively of which all of the particles - has an average statistical diameter at least of the order of 5 microns in particular equal to several times the mean statistical diameter of the particles of the slurry and, in the more specifically considered realizations between 5 and 10 microns.
• slurry designates a suspension of solid particles in a liquid medium obtained by grinding within this liquid medium itself, the solid particles being perfectly stable with respect to aggregation and sedimentation.
• the soil tracing material comprises from 20% to 70% by weight of slurry based essentially on particles of calcium carbonate and / or equivalent and, more particularly, of the order of 50% to 70% in weight.
• the soil tracing material comprises from 5% to 20% by weight of the load considered and, more particularly, of the order of 5% to 10% by weight.
• This charge comprises -or alternatively consists essentially of particles of calcium carbonate and / or anhydrous aluminum, potassium, sodium, magnesium silicate, such as feldspar, talc kaolin and / or calcium sulfate and / or sulfate barium and / or silica and / or double carbonate of calcium and magnesium (dolomite) or equivalent.
• the soil tracing material comprises of the order of 50% to 60% by weight of the slurry, of which a significant part of the particles has an average statistical diameter of the order of 0.5 to 2 microns; of the order of 5% to 10% by weight of the filler; of the order of 10% to 17% by weight of water.
• the material also comprises: firstly, at least one thickener in an amount less than 0.6% by weight approximately; secondly, at least one dispersing agent in an amount less than about 0.5% by weight; third place, at least one bactericide in suitable quantity; fourthly at least one antifoam product preventing the formation of bubbles during the manufacture of the material and during its use in a suitable quantity.
• the thickener (s), dispersing agents, bactericides, anti-foaming products are found together in an amount less than about 1.7% by weight.
• the soil tracing material also comprises, in the fifth place, at least one binder in an amount between about 3% to 15% by weight approximately, in particular 5% to 10% and more particularly in the range of 6% to 8%; and in sixth place, a base of nature and in quantity such that the pH of the soil tracing material is adjusted between 8 and 9.5 approximately.
• This base is for example 22 ° Baumé ammonia in an amount less than 0.4% by weight, a 30% sodium hydroxide solution or equivalent.
• the soil tracing material also comprises at least one prick or pigment paste of white or colored color in an amount less than 55% by weight approximately, in particular of the order of 5% to 30% and more particularly of the order from 10% to 12%; and / or at least one fluorescent agent; and / or at least one phosphorescent agent depending on the desired color or visual effect.
• the material comprises up to 70% by weight of water, in particular 10% to 40% and more particularly from 10% to 20%.
• the slurry used is essentially based on particles of calcium carbonate and is HYDROCARB 60 from the Company. OMYA.
• a slurry comprises at least 93% by weight and more particularly at least 99% by weight approximately of calcium carbonate on the dry extract.
• This slurry has a density of the order of 1.829, a dry extract of the order of 72% and an ELREPHO-R457 whiteness DIN standard of the order of 90%.
• the slurry considered has more than 50% and in particular approximately at least 60% of calcium carbonate particles of size less than 2 microns. Its specific surface is around 6.5 m2 g. The mean statistical diameter of the particles is of the order of 1.6 microns.
• the invention is however not limited to the case of the use of HYDROCARB 60. It also relates to any equivalent or neighboring slurry. Thus good results have been obtained with another slurry also of calcium carbonate: OMYALITE OM 60 from the same company OMYA which has a pH of the order of 9 ⁇ 1, a density of 1.692, a dry extract of 65 % ⁇ 1 and a whiteness (ELREPHO-R457 DIN standard) of 85 ⁇ 1. The mean statistical diameter of the particles is of the order of 1.5 microns.
• a slurry essentially based on suitable calcium carbonate has a density of the order of 1.6 to 2; a dry extract of the order of 60% to 80%; a whiteness ELREPHO6-R457 DIN standard of the order of 85 to 90. Its specific surface is of the order of 5 to 15 m2 / g and its particles have an average statistical diameter of the order of 0.5 to 1, 7 microns.
• mineral materials different from calcium carbonate but functionally equivalent can be used, alone or in combination, in place of or with calcium carbonate.
• Such materials include calcium, silica sulfate, barium sulfate, double calcium and magnesium carbonate (dolomite), aluminum silicate, potassium, sodium, magnesium (feldspar, talc, kaolin).
• the charge used was DURCAL 10 from the company OMYA. It is a calcium carbonate (metamorphic marble of Pyrenean origin) having particles with an average statistical diameter of the order of 10 microns, a density of 2.75.
• the invention also relates to any equivalent charge. Thus good results have been obtained with OMYA BL from the same company OMYA. It is a calcium carbonate (emergency limestone) with particles of average statistical diameter of the order of 5 microns and a density of 2.7.
• a suitable binder is advantageously chosen from the group comprising dispersions of copolymers based on styrene and acrylic ester or aqueous dispersions (at 50% for example) of an acrylate copolymer or equivalent.
• a suitable thickener is based on hydroxyethylcellulose or equivalent.
• a suitable dispersing agent is advantageously an ammonium salt of polymeric acrylic acid or equivalent.
• a suitable bactericide is for example an aqueous solution of n-methylol-chloracetamide and active heterocycles or equivalent.
• a suitable bactericide is for example an aqueous solution of n-methylol-chloracetamide and active heterocycles or equivalent.
• a suitable antifoam product is, for example, a mixture of hydrophobic substances in a paraffinic mineral oil.
• a ready-to-use paste or a dispersing powder can be used as the pigment paste.
• a ready-to-use paste contains water, a low-boiling, water-soluble organic solvent, in small quantities, one or more wetting and dispersing agents.
• the embodiment already considered and comprising of the order of 50% to 60% of slurry, from 10% to 17% of water, from 5% to 10% of filler comprises, in addition from 10% to 12% by weight of pigment or pigment paste, of the order of 7.5% by weight of a binder as well as a thickener, a bactericide, an antifoam product, a dispersing agent and a base as mentioned.
• Such a soil tracing material has a pH of the order of 8 to 9.5; a dry extract of the order of 60% to 65%, a covering power of the order of 93% to 99%.
• the pigment or the pigment paste is white and the material has a whiteness Rz of the order of 80 to 89.
• Such a tracing material of white color, is particularly well suited to the production of the lines of a football or rugby field or of any sports or leisure area.
• This soil-tracing material has an opacity of 93.3, a whiteness of 86.1, a pH of 9, a viscosity of 6.1 Pascal seconds, a density of 1.55 and a dry extract of 61.2%. Its washability is poor.
• Example 1 Other embodiments derived from that of Example 1 were made with other raw materials and other compositions or the same raw materials as those of Example 1 but with other proportions by relative weight.
• TYLOSE MHB 10.000Y from the company BEROL CHIMIE was also used. The proportion by weight is between 0.15% and 0.40% approximately.
• MERGAL K6N instead of MERGAL K6N, we also used MERGAL AF from OMYA and PROXEL XL2 from I.C.I. The proportion by weight is of the order of 0.25%.
• OROTAN 731 from the company ROHM ET HAAS or also a dispersant PIG A from the company BASF was also used.
• BYK 033 from the company B.Y.K. was also used as an anti-foaming product. CHEMIE.
• white pigment pastes in the ready-to-use variant: white 60371 from the company RICHARD et CIE or NOVAPINT D11 from the company KOVI and in the powder dispersion variant: TIOXIDE RHD2 from the company TIOXIDE or TiO2 RL68 from the company RHONE-POULENC.
• phosphorescent or fluorescent pigments those from the company USR OPTONIX can be used.
• the material has a dry extract of 61.1%, a density of 1.55 and a pH of 9.3. Its opacity is 93, its whiteness is 81.7, its washability is poor.
• the material has a dry extract of 61.3%, a density of 1.55 and a pH of 9.0. It has an opacity of 93.4, a whiteness of 86 and poor washability.
• the material has a dry extract of 61.9%, a density of 1.6 and a pH of 9.1. Its opacity is 97.7, its whiteness is 88.7, its washability is poor.
• the material has an opacity of 98.2; a whiteness of 88.9; average washability; a pH of 9.1; a viscosity of 7.5 Pascal seconds; a dry extract of 61.4% and a density of 1.60.
• the material is white and fluorescent. Its opacity is 93.3; its whiteness of 85; its low washability; its pH of 9.0. ; its viscosity of 6 Pascal seconds; the dry extract of 61%; the density of 1.55.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Paper (AREA)
• Paints Or Removers (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9399534

Family Applications (1)

Country Status (2)

Citations (4)

• 1990
  • 1990-08-08 FR FR9010130A patent/FR2665697B1/fr not_active Expired - Lifetime
• 1991
  • 1991-07-30 EP EP91402137A patent/EP0470889A1/de not_active Withdrawn

Patent Citations (4)

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