Global Patent Index - EP 1040161 A1

EP 1040161 A1 2000-10-04 - SEALS PRODUCED FROM ALPHA-OLEFIN/VINYLIDENE AROMATIC AND/OR HINDERED ALIPHATIC VINYLIDENE/INTERPOLYMER BASED MATERIALS AND SEALING SYSTEMS THEREFROM

Title (en)

SEALS PRODUCED FROM ALPHA-OLEFIN/VINYLIDENE AROMATIC AND/OR HINDERED ALIPHATIC VINYLIDENE/INTERPOLYMER BASED MATERIALS AND SEALING SYSTEMS THEREFROM

Title (de)

AUF ALPHA-OLEFIN/VINYLIDEN AROMATISCHEN UND/ODER GEHINDERTEN ALIPHATISCHEN VINYLIDEN INTERPOLYMER MATERIALIEN BASIERENDE DICHTUNGEN UND DARAUF BASIERENDE DICHTUNGSSYSTEME

Title (fr)

JOINTS REALISES EN MATIERES A BASE D'ALPHA-OLEFINE/VINYLIDENE AROMATIQUE ET/OU VINYLIDENE ALIPHATIQUE EMPECHE/INTERPOLYMERE ET SYSTEMES D'ETANCHEITE Y RELATIFS

Publication

EP 1040161 A1 (EN)

Application

EP 98965396 A

Priority

  • US 9826795 W
  • US 99183697 A

Abstract (en)

[origin: WO9931176A1] The present invention discloses seals including container closure liners, gaskets and barrier membranes, comprising a polymer composition having an oxygen transmission coefficient at a temperature of 25 DEG C of less than about 300 cm<3>.mil/100 in<2>.day.atm. (1.2 cm<3>/cm.day.MPa), wherein the polymer composition comprises at least one substantially random interpolymer (or a blend comprising at least one substantially random interpolymer and at least one other polymer) and from 0 to 80 percent by weight (based on the total weight of the composition) of at least one filler. The present invention also discloses sealing systems which include container closures such as bottle caps comprising these seals. The interpolymers or blends used to produce the seals of the present invention (as well as the novel seals themselves) exhibit a unique balance of properties including low oxygen permeability, low Shore A hardness and excellent tensile strain recovery.

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

C08L 23/02; C08L 25/00

IPC 8 full level (invention and additional information)

C08J 5/18 (2006.01); B32B 27/28 (2006.01); C08F 210/00 (2006.01); C08F 212/04 (2006.01); C08J 9/04 (2006.01); C08L 23/02 (2006.01); C08L 23/08 (2006.01); C08L 25/00 (2006.01); C08L 25/08 (2006.01); C09J 123/08 (2006.01); C09K 3/10 (2006.01); C08F 210/02 (2006.01)

CPC (invention and additional information)

C09K 3/10 (2013.01); C08F 210/00 (2013.01); C08F 212/04 (2013.01); C08L 23/08 (2013.01); C08L 25/08 (2013.01); C09J 123/08 (2013.01); C08F 210/02 (2013.01); C08L 23/0838 (2013.01); C09K 2200/062 (2013.01); C09K 2200/0632 (2013.01); C09K 2200/0642 (2013.01)

Combination set (CPC)

  1. C08L 23/08 + C08L 2666/04
  2. C08L 23/08 + C08L 2666/24
  3. C08L 25/08 + C08L 2666/02
  4. C09J 123/08 + C08L 2666/04
  5. C09J 123/08 + C08L 2666/24
  6. C08F 210/02 + C08F 212/04

Citation (search report)

See references of WO 9931176A1

Designated contracting state (EPC)

AT BE CH DE ES FI FR GB IT LI NL SE

EPO simple patent family

WO 9931176 A1 19990624; AR 017878 A1 20011024; AU 2087199 A 19990705; BR 9812798 A 20001017; CA 2314994 A1 19990624; CN 1284101 A 20010214; EP 1040161 A1 20001004; JP 2002508423 A 20020319; MY 135742 A 20080630; NO 20003072 A 20000810; NO 20003072 D0 20000615; TW 432094 B 20010501; ZA 9811512 B 20000615

INPADOC legal status


2002-08-21 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020212

2001-08-01 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010613

2000-10-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000717

2000-10-04 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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