Global Patent Index - EP 2021299 A2

EP 2021299 A2 2009-02-11 - ADDITIVE BUILDING MATERIAL MIXTURES COMPRISING MICROPARTICLES WITH EXTREMELY THIN SHELLS

Title (en)

ADDITIVE BUILDING MATERIAL MIXTURES COMPRISING MICROPARTICLES WITH EXTREMELY THIN SHELLS

Title (de)

ADDITIVE BAUSTOFFMISCHUNGEN MIT MIKROPARTIKELN MIT SEHR DÜNNEN SCHALEN

Title (fr)

MÉLANGES ADDITIFS DE MATÉRIAUX DE CONSTRUCTION CONTENANT DES MICROPARTICULES AYANT DE TRÈS MINCES COQUES

Publication

EP 2021299 A2 (DE)

Application

EP 07704255 A

Priority

  • EP 2007050910 W
  • DE 102006008969 A

Abstract (en)

[origin: US2007197671A1] The present invention relates to the use of polymeric microparticles having thin shells in hydraulically setting building material mixtures for the purpose of enhancing their frost resistance and cyclical freeze/thaw durability.

IPC 8 full level (invention and additional information)

C04B 16/08 (2006.01)

CPC (invention and additional information)

C04B 16/082 (2013.01); C04B 28/02 (2013.01); C04B 2111/00405 (2013.01); C04B 2111/29 (2013.01); Y10T 428/249968 (2015.04); Y10T 428/254 (2013.01); Y10T 428/2998 (2013.01)

Combination set (CPC)

C04B 28/02 + C04B 16/082

Citation (search report)

See references of WO 2007096237A3

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 NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

US 2007197671 A1 20070823; BR PI0708241 A2 20110524; CA 2642996 A1 20070830; CN 101024561 A 20070829; DE 102006008969 A1 20070830; EP 2021299 A2 20090211; JP 2009527450 A 20090730; KR 20080112205 A 20081224; RU 2008137547 A 20100327; WO 2007096237 A2 20070830; WO 2007096237 A3 20080502

INPADOC legal status


2013-01-23 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20120801

2012-08-01 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2009-03-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: EVONIK ROEHM GMBH

2009-03-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20080521

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- 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 NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK RS