Patent application number | Description | Published |
20080257218 | Light Weight Additive, Method of Making and Uses Thereof - Low density additives and methods of making said additives for composite materials are provided. The low density additives have at least a partial or complete water repellant property that reduces moisture migration, absorption, and retention within a composite material in which it is incorporated into. Active sites are engineered onto the surface of the low density additives to enhance bonding of the additives within a composite matrix. Reduced water movement and enhanced bonding lead to an increased strength and durability performance for a composite material comprising such additives. Composite materials incorporating one or more engineered low density additives as also provided, such composite materials having enhanced strength and durability. Such composite materials may be made from a Hatschek process. The composite materials may be further used as interior and exterior building products. | 10-23-2008 |
20090004468 | PRIMER FOR COMPOSITE BUILDING MATERIALS - An improved primer formulation for composite building materials, such as materials that are generally cementitious, gypsum, or of another inorganic building material, such as those containing cellulose, glass, steel or polymeric fibers. The improved formulation effectively blocks moisture from penetrating the composite building material and is better than alternate or conventional primers. The formulation also improves adhesion and prevents peel failure of a topcoat when applied to the composite building material. The improved formulation acts as a weather-guard and a hydrophobic treatment to all surfaces of the composite building material upon application. | 01-01-2009 |
20090005484 | PAINT - A paint composition and formulation for building materials, such as materials that are generally cementitious, gypsum, or of another inorganic building material, including those containing cellulose, glass, steel or polymeric fibers. The paint formulation provides improved weatherability, durability, light stability, freeze-thaw resistance and water resistivity. | 01-01-2009 |
20090005494 | MULTIFUNCTIONAL PRIMERS - Multifunctional primer formulations are disclosed for composite building materials, such as materials that are generally cementitious, gypsum, or of another inorganic building material, including those containing cellulose, glass, steel or polymeric fibers. The multifunctional primer formulations provide multifunctional action to the primer including an ability to function as a primer and sealer in only a single coating. Such formulations when applied to a suitable substrate provide excellent adhesion to the substrate and improve paint adhesion and performance when applied thereto. Superior properties over commercial products is particularly notable when the formulations herein are applied to substrates, such as fiber cement, that have been manipulated or sized by cutting (e.g., by saw or water jet), sanding, punching, and/or shearing. | 01-01-2009 |
20100251632 | Cementitious Articles, Formulations, Methods Of Making And Uses - Described herein is a monolithic cementitious article with one or more pre-formed shaped regions. The shaped regions are generally channels that extend through a portion of the article or span the full article. The article includes one or more openings at least one of its ends. The article has a low apparent density with a high strength as well as high performance characteristics. The article when manufactured is suitable for use as a building product, such as siding, panel, trim, fascia, roofing, crown moulding, decking, and fencing. | 10-07-2010 |
20100326327 | ENVIRONMENTALLY-FRIENDLY CEMENTITIOUS ARTICLES, FORMULATIONS, METHODS OF MAKING AND USES - Described herein is a cementitious article and a method of making using a water-based manufacturing system that incorporates a closed-loop or partially closed loop water recycling system and an alkali removal process. The system, as such is environmentally friendly, saves resources, such as water and other raw materials, and reduces waste disposal. The system further provides for a cementitious article having a low alkali content. Articles prepared by one or more processes described herein have characteristics that include a low apparent density, high strength and high freeze-thaw performance as compared with an article of the same general formulation but made from a comparative manufacturing system that does not include an alkali removal process. Articles described herein are suitable for use as building products, such as siding, the underlayment panel, board, trim, fascia, roofing, decking, and fence. | 12-30-2010 |
20110248421 | Fiber cement composite materials using bleached cellulose fibers - A fiber cement composite material that incorporates a blend of bleached and unbleached cellulose fibers as a partial or complete substitute for premium grade cellulose pulp is provided. Bleached standard grade cellulose fibers are used in conjunction with unbleached, standard grade cellulose fibers to provide a fiber cement composite product having substantially equal or even superior flexibility and strength as an equivalent fiber cement composite material reinforced by premium grade, unbleached cellulose fibers. A synergistic combination of bleached and unbleached standard grade cellulose fibers to produce a composite material with the desired properties previously achievable only through the use of premium grade cellulose pulp. | 10-13-2011 |
20120205060 | METHOD AND APPARATUS FOR REDUCING IMPURITIES IN CELLULOSE FIBERS FOR MANUFACTURE OF FIBER REINFORCED CEMENT COMPOSITE MATERIALS - A method of manufacturing high purity fiber cement grades of cellulose fibers is described. Additional washing steps, coupled with an elevated temperature, are used in the process to extensively wash the pulps and remove substantially all COD components remaining in the pulps. The pulps are counter-currently washed by diffusion and dewatering at elevated temperatures following the brown stock washer systems. During the additional washing steps, the pulps are soaked in counter-current heated water for a pre-determined time and some chemicals may be introduced to chemically break down the COD components in the pulps and to make them more soluble in the aqueous solution. The additional washing steps can be performed using existing equipment at conventional pulp mills. | 08-16-2012 |
20130183505 | ENGINEERED COMPOSITE BUILDING MATERIALS AND METHODS OF MAKING SAME - An engineered composite building material, such as fiber cement, having one or more engineered sub-surface regions designed to provide the building material with improved moisture ingress resistance, paint adhesion, and other mechanical properties is provided. The sub-surface region has a cement-polymer matrix formed by introducing an impregnating agent into the pores of the substrate. The composite building material may be formed by applying impregnating agents to the subsurface regions of the substrate to form chemical and/or mechanical bonds with the matrix of the building material, the reinforcement fibers, and/or the surface coatings applied to the material. The thickness of the sub-surface regions may be controlled by varying the viscosity and porosity of the building material substrate. The cement-polymer building material has enhanced durability, weather resistance, strength, and stiffness. | 07-18-2013 |
20140349106 | MULTI-FUNCTIONAL COATING SYSTEM FOR CEMENTITIOUS COMPOSITE MATERIALS - Improved coating formulations for cementitious composite building materials are disclosed herein. The coating formulations provide both sealer and primer functions, particularly for substrates in a high alkaline environment, such as fiber cement composite materials. The coating formulations can be applied in a cost-effective single step; exhibit improved adhesion, blocking resistance, water resistance characteristics | 11-27-2014 |