gypsum cement patent

Calcium Sulfate Specified (e.g., Gypsum, Anhydrite ...

A composition comprising gypsum plasticized by a polymer and containing gypsum in the range of about 40% to about 90% by weight. In a …

Global Gypsum and Anhydrite Industry - PR Newswire

Cement, a hydraulic binder and a key ingredient in concretes and mortars, came into widespread use during the Industrial Revolution. Learn about the history and innovations which transformed this material into a high-tech product....

History | Lafarge - Cement, concrete, aggregates and gypsum

Metal strips of either aluminum or steel incorporated in the panel and bonded to the insulating core and to the gypsum, concrete or cement facing extend ...

Plaster Systems Brochure (English) - SA920 - USG

process of gypsum mining for cement manufacturing process of gypsum ... inventions and new technologies and a free subscription to track new patents related to Gypsum.

Timeline of Concrete - Auburn University

May 22 marks the 123rd anniversary of an early and important patent covering drywall for building ... A World of Gypsum, ... being the most preferable cement.

Gypsum-cement system for construction materials - …

Search for Calcium Sulfate Specified (e.g., Gypsum, Anhydrite, Plaster Of Paris, Etc.) Patents and Patent Applications ... such as cement, gypsum or mortar, ...

Patents Assigned to United States Gypsum Company

Abstract: A gypsum slurry is described that includes water, a hydraulic component comprising at least 50% calcined gypsum by weight based on the dry weight of the hydraulic component, foam, a defoamer, a polycarboxylate dispersant having olefinic unsaturated mono-carboxylic acid moieties and (poly ...

Coating provides a water-resistant CertainTeed …

Jul 18, 2017· Methods for obtaining synthetic calcined gypsum coated with DTPA and formulations were described in U.S. patent ... Gypsum, Class C cement ...

Patent US5344490 - Plasticised gypsum composition - Google ...

A composition comprising gypsum plasticized by a polymer and containing gypsum in the range of about 40% to about 90% by weight. In a …

United States v. United States Gypsum Co., (full text ...

The present invention is of a cementitious composition containing OPC, calcined gypsum, a source of amorphous silica and a source of amorphous alumina. The ratio of calcium sulfate hemihydrate to OPC is 0.7:1.0 to 1.4:1.0, the ratio of amorphous silica and amorphous alumina to OPC is 0.26:1.0 to 0.4:1.0, and the ratio of amorphous …

Patent US1989641 - Gypsum plaster - Google Patents

Substrates Substrates can be either metal lath, unit masonry, monolithic concrete, or a recommended gypsum base, cement board or gypsum fiber panel.

Nanotechnology in the cement industry - a patent analysis

At Patents you can conduct a Patent Search, ... High molecular weight additives for calcined gypsum and cementitious ... A gypsum cement slurry composition ...

Cement & gypsum - Schenck Process

View UNITED STATES GYPSUM COMPANY's, CHICAGO, IL, US, patent portfolio profile on Patent Buddy. Patent Buddy is the world's most extensive database and networking website for patent attorneys, agents and inventors helping inventors like UNITED STATES GYPSUM COMPANY showcase inventions and connect to patent attorneys, patent …

capping gypsum cement patent - rrcser.in

Nanotechnology in the cement industry ... patents are filed in the area of composite cement (74 patents) ... followed by gypsum-based cement with 27 patent filings. ...

Cementitious patch compositions and methods - United ...

The preferred ingredients of my improved cement plaster are calcined gypsum, ... Citing Patent Filing date Publication date Applicant Title; US2820714 * Oct 10, 1955:

History of Concrete & Cement - CEMEX USA - CEMEX

At Patents you can conduct a Patent Search, ... High molecular weight additives for calcined gypsum and cementitious ... A gypsum cement slurry composition ...

Synthetic Gypsum from Coal Power Plant Flue Gas | …

Bry Higgins was issued a patent for hydraulic cement ... The addition of gypsum when grinding clinker to act as a retardant to the setting of concrete was introduced ...

Patent US5344490 - Plasticised gypsum composition - Google ...

Shop certainteed 0.5-in x 36-in x 60-in diamondback gypsum backer board in the backer board section of Lowes.com

CertainTeed 0.5-in x 36-in x 60-in Diamondback Gypsum ...

Home page of the United States Patent and Trademark Office's main web site.

Patent US3269071 - Gypsum composition and building ...

Gypsum concrete is a building material used as a floor underlayment used in wood-frame and concrete ... US patent 4,075,374 lists the formulation as 10 parts ...

US6902614.pdf - Google Accounts

Global Gypsum and Anhydrite Industry. NEW YORK, ... Patent Law Public ... Belite Clinker Blended with Gypsum Provides Strength Comparable to Portland Cement Gypsum ...

US Patent # 7,338,990. High molecular weight additives …

Also furthered the discovery of lime and gypsum mortar as a binding ... of bound stones to form concrete 200 AD: ... were issued more hydraulic cement patents.

UNITED STATES GYPSUM COMPANY, Patent Owner, …

Synthetic Gypsum from Coal Power Plant Flue ... "United States Patent ... A process for preparing and handling synthetic gypsum for cement production and ...

Patent US5842314 - Metal reinforcement of gypsum, concrete ...

Jun 05, 2001· A composition for use in construction materials, ... Once the mixture of gypsum and cement has been solidified, ... In EP Patent No. 271,329, ...

Evolution of Drywall: Augustine Sackett's gypsum board …

water-resistant gypsum board produced with ... patent-pending textured pattern ... cut, and install Coating provides a water-resistant Easy to handle, cut, and ...