Global patent index - EP 1082598 A1

EP 1082598 A1 2001-03-14 - CHARACTERISATION OF THIXOTROPIC MATERIAL SPECIMEN

Title (en)

CHARACTERISATION OF THIXOTROPIC MATERIAL SPECIMEN

Title (de)

KENNZEICHNUNG VON THIXOTROPISCHEM MATERIAL

Title (fr)

CARACTERISATION D'ECHANTILLONS THIXOTROPIQUES

Publication

EP 1082598 A1 (EN)

Application

EP 99923732 A

Priority

  • GB 9901453 W
  • GB 9811237 A

Abstract (en)

[origin: GB2337822A] Thixotropic specimen slugs (22) are isothermally compressed at high and constant speed to induce a shear rate in excess of 10 s<SP>-1</SP>, the load required to maintain the compression being monitored at a rate exceeding 2 KHz so that a peak force required at commencement of the compression to break down the microstructure of the specimen, before shear thinning is experienced, can be detected and employed to characterise the specimen. After heating by coils 26, the slug 22 is raised by ram 18 to introduce the slug into compression cell or die 32. A computer 50 controls the apparatus 10 and receives signals from the load cell (46, fig.2) for subsequent processing.

IPC 1-7 (main, further and additional classification)

G01N 3/18; C22C 1/00

IPC 8 full level (invention and additional information)

G01N 3/18 (2006.01); G01N 11/00 (2006.01)

CPC (invention and additional information)

G01N 11/00 (2013.01); G01N 3/18 (2013.01)

Citation (search report)

See references of WO 9961886A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

GB 2337822 A 19991201; GB 2337822 B 20020424; GB 9811237 D0 19980722; EP 1082598 A1 20010314; WO 9961886 A1 19991202

INPADOC legal status

2003-11-12 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030428

2002-12-04 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20021016

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001129

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE