Use of Cyclohexane Polycarboxylic Acid Derivatives For Removing Dust From Chemical Construction Products
AssigneeConstruction Research & Technology GmbH
InventorsJosef Weichmann, Werner Stohr, Volker Schwarz, Klaus-Dieter Hoetzl, Boris Breitscheidel
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Abstract
The use of cyclohexanepolycarboxylic acid derivatives for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the cyclohexanepolycarboxylic acid derivatives according to the invention are proposed.
Claims28
A process for the use of cyclohexanepolycarboxylic acid derivatives of the formula (I)
- in which
- R1 represents C1-C10-alkyl or C3-C8-cycloalkyl,
- m represents 0, 1, 2 or 3,
- n represents 2, 3 or 4 and
- R represents hydrogen or C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl, at least one radical R representing C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl,
- as an additive for dedusting pulverulent construction chemistry products, comprising bringing a pulverulent construction chemistry product, an individual constituent or component thereof, or mixtures thereof, into contact with or treating with at least one cyclohexanepolycarboxylic acid derivative of formula (I).
Redispersible powder containing a cyclohexanepolycarboxylic acid derivative of formula (I)
- in which
- R1 represents C1-C10-alkyl or C3-Cg-cycloalkyl,
- m represents 0, 1, 2 or 3,
- n represents 2, 3 or 4 and
- R represents hydrogen or C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl, at least one radical R representing C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl.
Pulverulent construction chemistry product containing at least one cyclohexanepolycarboxylic acid derivative of formula (I)
- in which
- R1 represents C1-C10-alkyl or C3-C8-cycloalkyl,
- m represents 0, 1, 2 or 3,
- n represents 2, 3 or 4 and
- R represents hydrogen or C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl, at least one radical R representing C1-C30-alkyl, C1-C30-alkoxy or C3-C8-cycloalkyl,
- and further additives suitable for dedusting.
Dependencies are inferred from the claim text.