Global Patent Index - EP 2024295 A1

EP 2024295 A1 2009-02-18 - USE OF POLYCARBOXLATE-BASED FLOW AGENTS FOR ANHYDRITE-BASED FLOW SCREEDS

Title (en)

USE OF POLYCARBOXLATE-BASED FLOW AGENTS FOR ANHYDRITE-BASED FLOW SCREEDS

Title (de)

VERWENDUNG VON FLIESSMITTELN AUF BASIS VON POLYCARBOXYLATEN FÜR ANHYDRIT-BASIERTE FLIESSESTRICHE

Title (fr)

UTILISATION DE FLUIDIFIANTS À BASE DE POLYCARBOXYLATES POUR DES CHAPES FLUIDES À BASE D'ANHYDRITE

Publication

EP 2024295 A1 (DE)

Application

EP 07723659 A

Priority

  • EP 2007002713 W
  • DE 102006014529 A

Abstract (en)

[origin: DE102006014529A1] Use of a flow agent based on polycarboxylate for anhydrite-based flow screed, where the polycarboxylate component is based on a water-soluble, branched-chain and carboxyl group containing copolymer, where at least one of the structural criteria is from an array of nitrogen functionalized side chain and the unit between the main- and the side chain shows an ester compound, ether compound and amide- and/or imide compound. Use of a flow agent based on polycarboxylate for anhydrite-based flow screed, where the polycarboxylate component is based on a water-soluble, branched-chain and carboxyl group containing copolymer, where at least one of the structural criteria is from an array of nitrogen functionalized side chain and the unit between the main- and the side chain shows an ester compound, ether compound and amide- and/or imide compound; where in the polycarboxylate component the molar ratio of an acid group to sub-group carrying monomer is >= 2:1 and/or the side chain length is less than 25, and the sulfate content of the flow screed is >= 0.5 wt.%, based on the total weight of the anhydrite parts.

IPC 8 full level (invention and additional information)

C04B 24/26 (2006.01); C04B 28/16 (2006.01); C04B 111/62 (2006.01)

CPC (invention and additional information)

C04B 28/16 (2013.01); C04B 24/2647 (2013.01); C04B 2103/0057 (2013.01); C04B 2103/32 (2013.01); C04B 2111/1006 (2013.01); C04B 2111/62 (2013.01)

Combination set (CPC)

  1. C04B 28/16 + C04B 7/00 + C04B 11/00 + C04B 22/142 + C04B 24/2647
  2. C04B 28/16 + C04B 7/00 + C04B 11/00 + C04B 22/142 + C04B 24/267
  3. C04B 28/16 + C04B 7/00 + C04B 11/00 + C04B 22/142 + C04B 24/163
  4. C04B 28/16 + C04B 7/00 + C04B 11/00 + C04B 22/142 + C04B 24/2694

Citation (search report)

See references of WO 2007112890A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

DE 102006014529 A1 20071004; EP 2024295 A1 20090218; US 2009111913 A1 20090430; WO 2007112890 A1 20071011

INPADOC legal status


2014-05-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20131128

2012-08-08 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2009-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090402

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081008

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK RS