Global Patent Index - EP 1037751 A1

EP 1037751 A1 2000-09-27 - ROTATABLE ROLLS OF PLASTIC MATERIAL

Title (en)

ROTATABLE ROLLS OF PLASTIC MATERIAL

Title (de)

DREHBEWEGLICHE KUNSTSTOFFROLLEN

Title (fr)

ROULEAUX EN MATIERE PLASTIQUE POUVANT EFFECTUER UNE ROTATION

Publication

EP 1037751 A1 (DE)

Application

EP 98962429 A

Priority

  • DE 19755725 A
  • EP 9807995 W

Abstract (en)

[origin: DE19755725A1] Rotatable rolls of plastic material are produced in the following manner: a thermoplastic material is injected between a roll shaft and an outer roller layer, whereby the volume of said material contracts during cooling, shrinks onto the roll shaft and shrinks away from the outer roller layer, or the outer layer is initially injected according to a multi-component injection moulding method, after which a thermoplastic material is injected between the outer roller layer and the roll shaft, whereby said material also shrinks onto the roll shaft and shrinks away from the outer roller layer. Said method produces rolls of plastic material, consisting of both an inner roller layer (2) which is firmly connected to the roll shaft (1) and an outer roller layer (3) which can rotate freely against said inner layer by means of a sliding gap.

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

B60B 33/00; B29C 45/16

IPC 8 full level (invention and additional information)

B29C 45/16 (2006.01); B60B 33/00 (2006.01)

CPC (invention and additional information)

B60B 33/0044 (2013.01); B29C 45/1635 (2013.01); B29C 45/1671 (2013.01); B60B 33/0028 (2013.01); B29C 2045/1601 (2013.01); Y10T 29/49544 (2013.01)

Citation (search report)

See references of WO 9930913A1

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

DE 19755725 A1 19990624; DE 19755725 C2 19991028; AU 1759999 A 19990705; EP 1037751 A1 20000927; JP 2002508271 A 20020319; US 6444065 B1 20020903; WO 9930913 A1 19990624

INPADOC legal status


2001-08-08 [18W] WITHDRAWN

- Date of withdrawal: 20010607

2001-01-31 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001214

2000-09-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000717

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT