Global Patent Index - EP 0876250 A4

EP 0876250 A4 2000-05-03 - BIAXIALLY ORIENTED POLYETHYLENE FILMS

Title (en)

BIAXIALLY ORIENTED POLYETHYLENE FILMS

Title (de)

BIAXIAL ORIENTIERTE POLYETHYLENFILME

Title (fr)

FILMS DE POLYETHYLENE A ORIENTATION BIAXIALE

Publication

EP 0876250 A4 (EN)

Application

EP 96944865 A

Priority

  • US 9620180 W
  • US 877795 P
  • US 75510596 A

Abstract (en)

[origin: WO9722470A1] Articles and films are provided from ethylene-based polymers made using a metallocene catalyst system. Biaxial orientation dramatically improves clarity, stiffness, dart drop impact, puncture resistance, and shrink. Tensile strength at yield and ultimate tensile are also improved. Film stiffness, as measured by secant modulus, is increased by 300 % over an unoriented film of the same ethylene polymer. These articles and films are useful as shrink wrap, overwrap, and for dry packaging applications such as snacks and cereals as well as non-packaging applications such as photograph and document holders.

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

C08J 5/18; B32B 7/12; B32B 27/32

IPC 8 full level (invention and additional information)

B29C 55/12 (2006.01); C08F 10/02 (2006.01); C08J 5/18 (2006.01)

CPC (invention and additional information)

C08J 5/18 (2013.01); C08J 2323/04 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9722470 A1 19970626; AU 1336997 A 19970714; BR 9612068 A 19991228; CA 2239549 A1 19970626; EP 0876250 A1 19981111; EP 0876250 A4 20000503; HU 0001641 A2 20000928; IL 124590 D0 19981206; JP 2002515923 A 20020528; NO 982786 A 19980814; NO 982786 D0 19980617; NZ 326083 A 19990128; PL 327143 A1 19981123

INPADOC legal status


2000-11-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20000916

2000-05-03 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000316

2000-05-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2000-05-03 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 08J 5/18 A, 7B 32B 7/12 B, 7B 32B 27/32 B

1998-11-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980626

1998-11-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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