Global Patent Index - EP 1085972 A1

EP 1085972 A1 2001-03-28 - METHOD AND MATERIAL FOR PRODUCING MODEL ELEMENTS

Title (en)

METHOD AND MATERIAL FOR PRODUCING MODEL ELEMENTS

Title (de)

VERFAHREN UND MATERIAL ZUR HERSTELLUNG VON MODELLKÖRPERN

Title (fr)

PROCEDE ET MATERIAU POUR PRODUIRE DES CORPS-MODELES

Publication

EP 1085972 A1 (DE)

Application

EP 99950332 A

Priority

  • DE 19820725 A
  • EP 9903131 W

Abstract (en)

[origin: DE19820725A1] Three-dimensional polymeric patterns are prepared by laser sintering of homopolymer or copolymer beads (2-200 microns) of monoethylenically unsaturated compounds. Three-dimensional polymeric patterns are produced by data-controlled laser radiation (wavelength of 200-20,000 nm). One or more laser beams are guided through specific spatial zones of a bed of fine particulate polymer powder according to the geometric data and the material melted and/or sintered. The polymer powder comprises polymer beads of a homopolymer or copolymer of monoethylenically unsaturated compounds having a particle diameter of 2-200 microns. An Independent claim is included for the resulting three-dimensional pattern.

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

B29C 67/00; B29K 33/00; C08J 3/12

IPC 8 full level (invention and additional information)

C08J 3/12 (2006.01); B29C 41/00 (2006.01); B29C 67/00 (2006.01)

CPC (invention and additional information)

B29C 41/003 (2013.01); B29C 64/153 (2017.08); B29K 2033/04 (2013.01)

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL

EPO simple patent family

DE 19820725 A1 19991118; AU 4258799 A 19991129; BR 9910364 A 20010206; CA 2331528 A1 19991118; EP 1085972 A1 20010328; JP 2002514527 A 20020521; TW 453947 B 20010911; WO 9958317 A1 19991118

INPADOC legal status


2002-04-24 [18W] WITHDRAWN

- Date of withdrawal: 20020222

2001-06-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010515

2001-03-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001211

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE CH DE ES FR GB IT LI NL