Hercules Corporation

Vera Louise Nilles

Alexander Adolphe Kindler

Patrick Joseph Cowan

Kelly A Brush

Wilfried Adolf Hohn

Stefan Hucko

Wilfried Adolphe Hohn

Martin Wunderlich

Disclosed are methods for the preparation of alkyl hydroxyalkyl cellulose ethers, and the use of such alkyl hydroxyalkyl cellulose ethers in the preparation and use of mortars and other cement-based systems; also disclosed is a hydraulic composition containing at least one retarder, at least one accelerator and a cellulose ether having a prolonged open time without deterioration of the other cement tile adhesive properties such as workability, setting time, strength development and sag resistance; and further disclosed are dry mortars containing encapsulated calcium chloride used in preparing mortar materials for use in construction, and the preparation and use of such mortars in cold weather environments is also disclosed.

Alkyl hydroxyalkyl cellulose ethers, methods of making, and use in cements and mortars

The presently disclosed and claimed inventive concept(s) relates generally to a hydraulic composition with a prolonged open time. More particularly, the composition comprises at least one cement retarder and at least one accelerator. The presently disclosed and claimed inventive concept(s) further relates to a dry mortar composition comprising the hydraulic composition having prolonged open time without deterioration of the other cement tile adhesive properties such as workability, setting time, strength development and sag resistance.

Hydraulic composition with prolonged open time

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Munich, Georgia

Vera Louise Nilles