Black colored roofing granules were prepared by coating 1000 g of inert mineral rocks suitable for shingle applications (commercially available from CertainTeed Corp., Piedmont, Mo.), and a silicate coating composition comprising 37.5 g of sodium silicate (grade 40, Occidental Chemical Co., Dallas, Tex.), 2.812 g of aluminum fluoride, 0.814 g ...
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FIG. 1 is a polarized light micrograph of prior art commercially available roofing granules (WA9300, 3M Company, Wausau, Wis.). These prior art roofing granules are believed to have been coated using a conventional roof coating process. The micrograph shows that the roofing granules have a "patchy" appearance which reflects low coating coverage on the mineral …
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The first artificially colored roofing granule was produced in 1914 by running molten slag into a solution of alkaline metal silicate, which was absorbed by the porous slag. Various colors were obtained by adding pigments to the silicate coating and …
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Definitions. a fire retardant asphalt composition felt-base roofing material comprising a layer of asphalt-saturated roofing felt having on one face thereof at least two layers of asphaltic composition and, between said layers, an intermediate layer of refractory mineral roofing granules in dividually coated with a reaction product of a boraxsodium silicate mixture which upon …
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A slurry was formed by mixing 20 parts sodium silicate solution, 10 parts water, 0.06 parts Rhodacal N, 1.5 parts carbon black, 10 parts Windsor clay. ... a plurality of coated roofing granules, each of said coated roofing granules including an inorganic granule and a coating applied onto an outer surface of said inorganic granule, ...
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Use of internal gas-forming compound to adjust coating porosity to control copper release rates in algae-retardant roofing granule products. US7060658B2 - Roofing granules - Google Patents Roofing granules Download PDF Info Publication number US7060658B2. US7060658B2 US10 ...
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In a roofing or siding system consisting essentially of an asphaltic membrane having a weather exposable surface on which is embedded 10-35 mesh mineral granules, said granules being coated with a composition containing pigment and a silicate/clay matrix the improvement in which said pigment contains between about 2 and 100 wt. % of at least 90 ...
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Made of a natural mineral coated in ceramic, classic granules meet the toughest tests of time, weather and visual appeal. Copper granules are the key ingredient used in shingles featuring …
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Similarly, U.S. Pat. No. 2,378,927 to Jewett discloses a coating composition for roofing granules consisting of sodium silicate, and clay or another aluminum-bearing …
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the coating is then dried, as by air, and the granules charged into a steam autoclave and subjected to a steam pressure of 118- 120 pounds, gage, per square inch (350 F.) for Under siliceous surface of the granules and the silica. flour in the mix to produce an insoluble, dense, hard, weather-resistant, buff-colored coating, believed to be a complex calcium silicate or …
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Sodium silicate is the common name for a compound sodium metasilicate, Na2SiO3, and is also referred to as liquid glass. ... as well as for welding rods and roofing granules[2]. References [1] Feiyang Li. "The influence of sodium silicate water glass content on the structure and properties of silicate thermal insulation coating." Materials ...
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Algae-resistant roofing granules coated with: a first coat consisting of a fired silicate-clay matrix containing cuprous oxide and zinc sulfide to provide a slow, long-term bimetallic copper and zinc ions release; and a second coat consisting of a fired silicate-clay matrix containing a pigment. ... about 22.4 pounds of sodium silicate per ton ...
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the dry components are placed in a rotary pelletizer and gently sprayed with water (or a dilute sodium silicate solution) to produce round "green refractory" particles. ... Grade 11 size granules, e.g. as measured in accordance with ASTM D451-91, e.g., a grading suitable for use as a granular coating for a roofing membrane ...
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Quick to access and easy to use bulk 1000 lbs.. supersak of Bare Ground coated granular ice melt (sodium chloride coated with liquid magnesium chloride and a corrosion inhibitor) plus calcium chloride for quicker and more aggressive ice melting. This unique blend gives you all 3 of the best ice melters in 1 blend.
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• Mineral Shield Roofing Granules provide a multi-faceted design and light-reflective construction that adds dimension and depth to membrane products. • UV blocker protects against damaging …
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Product Name: CHARMIAN COLORED ROOFING GRANULES CAS Name: NA Synonyms: Metabasalt coated with pigments, sodium silicate, kaolin clay, oil and siloxane Product Use …
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a coating formulation for roofing granules comprising of 32.5 g sodium silicate (Oxychem grade 42), 20.1 g of kaolin slurry (Royale slurry from Unimin Corp.), and 3.6 g of water was prepared in a container by mixing the ingredients using a mechanical stirrer at …
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Roofing granules coated with insolubilized reaction product of a coating composition comprising water, kaolin clay, sodium silicate, titanium dioxide and ammonium nitrate or nitrate of one or more group 1A metals. US4359505A - Light colored roofing granules - Google Patents Light colored roofing granules ...
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Specialty Granules Inc. 13424 Pennsylvania Avenue Suite 303 Hagerstown, MD 21742 ... Product Code: G11E03 Product Name: CHARMIAN COLORED ROOFING GRANULES CAS Name: NA Synonyms: Metabasalt coated with pigments, sodium silicate, kaolin clay, oil and siloxane Product Use Description: Roofing materials
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1,898,345 to Deming discloses coating a granular material with a coating composition including a sodium silicate, a coloring pigment, ... U.S. Pat. No. 2,378,927 to Jewett discloses a coating composition for roofing granules consisting of sodium silicate, and clay or another aluminum-bearing compound such as sodium aluminate, or cryolite or ...
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coating silicate granules clay sodium Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) ... Silicate coated roofing granules US5356664A (en) * : : Minnesota ...
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US2062080A US3140A US314035A US2062080A US 2062080 A US2062080 A US 2062080A US 3140 A US3140 A US 3140A US 314035 A US314035 A US 314035A US 2062080 A US2062080 A US 2062080A Authority US United States Prior art keywords granules sodium silicate blooming roofing roofing granules Prior art date Legal status (The legal …
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The method of treating mineral granules to form on each individual granule an insoluble color-bearing coating which is characterized by its afiinity for asphalt and possesses non-blooming properties, which method comprises completely coating each individual granule with an aqueous dispersion of sodium silicate, pigmenting material, and aluminum ...
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Made of a natural mineral coated in ceramic, classic granules meet the toughest tests of time, weather and visual appeal. Copper granules are the key ingredient used in shingles featuring …
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3M's granules used a copper-based coating, and ISP Minerals' granules were manufactured with a bimetallic copper-zinc coating. ... During the coloring process, they are coated with a slurry that consists of water, sodium silicate, clay and pigments in a rotating kiln. A firing temperature of about 900 F typically is used to transform the slurry ...
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US8491985B2 US12/933,144 US93314409A US8491985B2 US 8491985 B2 US8491985 B2 US 8491985B2 US 93314409 A US93314409 A US 93314409A US 8491985 B2 US8491985 B2 US 8491985B2 Authority
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The green roofing granules 90 are subsequently fired to fuse the sodium silicate, clay and the silica and thus to dissolve the silica matrix of the nanoparticle aggregates 60 in the coating binder 70 and thus disperse the silver nanoparticles …
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229910052911 sodium silicate Inorganic materials 0.000 description 3; 239000000454 talc Substances 0.000 description 3; ... the present invention thus provides an inorganic coating system for roofing granules that can be cured at relatively low temperatures and which can employ organic pigments, ...
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The invention provides a bright white refractory roofing granule, comprising a ceramic material formed from a substantially homogenous mixture of a ceramic-forming clay, sintering material, and optionally comprising silica particles, and other potential additives, said bright white refractory roofing granule having a total solar reflectance of at least 0.80 and a …
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a process for producing a white silica-based product comprises milling a feed material to form a milled feed material having a size of from about 0.5 pm to about 50 pm; combining the milled feed material with a binding agent (e.g., sodium silicate) and water to provide an agglomerated mixture; and heating the agglomerated mixture for a time and at a temperature of from about 1300° C to …
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