公开(公告)号：US11518141B2

公开(公告)日：2022-12-06

申请号：US16585799

申请日：2019-09-27

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Jeffrey W. Donelan ,  Michael P. Shake ,  Ajith M. Rao ,  James M. Ullett ,  Yanfei Peng

IPC: B32B9/00 ,  B32B15/12 ,  B32B5/02 ,  E04C2/04 ,  B32B15/20 ,  B32B37/18 ,  B32B37/00

Abstract: An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier sheet are also provided. An exterior sheathing system employing the exterior sheathing cementitious panel is provided.

公开(公告)号：US11225793B2

公开(公告)日：2022-01-18

申请号：US16371722

申请日：2019-04-01

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Yanfei Peng ,  Rafael Bury ,  Jeffrey W. Donelan

IPC: E04C2/04 ,  B32B13/12 ,  B23B27/20 ,  C04B28/04 ,  C04B28/14 ,  B32B27/20 ,  C04B111/00

Abstract: Mat-faced cementitious board including: (a) a cementitious core; (b) a fibrous mat having an inner first surface facing at least one face of the cementitious core, and an outer second surface, wherein the inner first surface and the outer second surface are opposed; (c) a hydrophobic, non-setting coating resulting from applying to the outer second surface of the fibrous mat a layer of hydrophobic finish composition including: (i) about 50 to about 80 weight % non-setting, inorganic filler having a mean particle diameter of about 12 microns to about 35 microns, (ii) about 20% to about 50 weight % an aqueous dispersion of a film-forming polymer, (iii) 0% to about 30 weight % additional water; (iv) an absence of fly ash, (v) an absence of pozzolanic material, (vi) an absence of hydraulic cement, (vii) an absence of calcium sulfate hemihydrate, and (viii) an absence of calcium sulfate anhydrite.

公开(公告)号：US20230228085A1

公开(公告)日：2023-07-20

申请号：US17937115

申请日：2022-09-30

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： David R. Blackburn ,  Jeffrey W. Donelan ,  Ashish Dubey ,  Christopher B. Tesmer ,  James B. O'Sullivan

IPC: E04C5/07 ,  E04C2/06 ,  B28B23/00 ,  D03D13/00 ,  D03D15/267

CPC classification number: E04C5/073 ,  E04C2/06 ,  B28B23/0006 ,  D03D13/008 ,  D03D15/267 ,  D10B2505/02 ,  D10B2401/063

Abstract: Fabric reinforcement for reinforcing alkaline cementitious matrix including warp yarns and weft yarns. To increase cohesive tensile strength of intersection points of the fabric the fabric has sufficient resinous coating over a substantial portion of the warp and weft yarns, before the fabric reinforcement is embedded within, or adhesively or mechanically bonded to the cementitious matrix, wherein the coating includes organic or inorganic adhesives/polymers, or the fabric has uncoated fabric modified by adhering fabric strands together where machine direction and cross-machine strands intersect, for example with cyanoacrylate or epoxy. Bond strength of the intersecting yarns of the fabric and the corresponding mechanical bond strength of the fabric to the cementitious matrix may also be enhanced by increasing roughness and/or surface area of the yarns and resulting fabric. Methods for making fabric, cementitious boards employing the fabric, and methods for making the cementitious board are also provided.

公开(公告)号：US10399898B2

公开(公告)日：2019-09-03

申请号：US15066417

申请日：2016-03-10

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Yanfei Peng ,  Ashish Dubey ,  David R. Blackburn ,  Chris C. Lee ,  Jeffrey W. Donelan

IPC: C04B7/26 ,  C04B14/42 ,  C04B28/14 ,  C09D5/00 ,  B32B5/26 ,  B32B13/08 ,  B28B23/00 ,  B32B29/00 ,  C04B28/02 ,  C04B41/00 ,  C04B41/48 ,  C04B41/63 ,  B28B11/04 ,  E04C2/04 ,  E04C2/06 ,  B32B13/14 ,  C04B41/45 ,  C04B41/50 ,  C04B41/52 ,  C04B41/70 ,  E04C2/26 ,  E04F15/18 ,  C04B41/46 ,  D06M11/79 ,  D06M13/192 ,  D06M13/513 ,  D06N3/00 ,  C04B111/27 ,  C04B111/00

Abstract: Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. These waterproof gypsum panels have many uses, such as, tile backer board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, interior wall and ceiling, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, preferably silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives. Preferably a pre-coated non-woven glass fiber mat is employed to provide the inorganic mineral fibers for the surface reinforcement.