Global Patent Index - EP 1235673 A2

EP 1235673 A2 2002-09-04 - METHOD OF FORMING A MEMBRANE, ESPECIALLY A LATEX OR POLYMER MEMBRANE, INCLUDING MULTIPLE DISCRETE LAYERS

Title (en)

METHOD OF FORMING A MEMBRANE, ESPECIALLY A LATEX OR POLYMER MEMBRANE, INCLUDING MULTIPLE DISCRETE LAYERS

Title (de)

METHODE ZUR FORMUNG EINER MEMBRANE MIT MEHREREN DISKRETEN SCHICHTEN INSBESONDERE EINE LATEX- ODER POLYMERMEMBRAN

Title (fr)

PROCEDE PERMETTANT DE FORMER UNE MEMBRANE, EN PARTICULIER UNE MEMBRANE EN LATEX OU EN POLYMERE, COMPORTANT PLUSIEURS COUCHES DISTINCTES

Publication

EP 1235673 A2 (EN)

Application

EP 97913802 A

Priority

US 9719445 W

Abstract (en)

[origin: WO9920203A2] Single and multiple layer membranes such as gloves and condoms include one or more deactivating barrier layers and/or indicating layers to indicate to a user membrane breach or the presence of a harmful substance in blood or body fluids. A membrane may include one or more permeable or semipermeable layers to disperse contained substances such as lubricants, biocides, spermicides, or indicators outwardly, and may also include permeable or semipermeable layers to allow transmission of body fluids or other environmental fluids inwardly into contact with an indicating or treating substance. An intermediate layer of a multi-layer membrane may include a substance to wipe, cleanse, sterilize, or otherwise treat a piercing needle. A membrane may include a sealing or coating to entrap indicators or other agents such as biocides therein. A method of making membranes such as gloves results in a double glove having discrete inner or outer layers joined only in a cuff region. Admixing of gentian violet with latex prior to membrane formation provides biocidal properties, anti-aging effects prolonging shelf-life and tear resistance, and reduces allergic reactions in latex-allergic users.

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

A41D 19/00; A61F 6/04; B29C 41/22

IPC 8 full level (invention and additional information)

A41D 19/00 (2006.01); A61B 19/04 (2006.01); A61F 6/04 (2006.01); B29C 41/00 (2006.01); B29C 41/22 (2006.01); B29C 37/00 (2006.01); B29C 41/08 (2006.01); B29C 41/14 (2006.01)

CPC (invention and additional information)

B29C 41/22 (2013.01); A61B 42/00 (2016.02); A61B 42/10 (2016.02); A61F 6/04 (2013.01); B29C 41/003 (2013.01); A41D 19/0055 (2013.01); A41D 19/04 (2013.01); B29C 37/0067 (2013.01); B29C 41/08 (2013.01); B29C 41/14 (2013.01); B29K 2105/0011 (2013.01); B29K 2105/0064 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9920203 A2 19990429; WO 9920203 A3 20020711; AU 5090098 A 19990510; CA 2311539 A1 19990429; EP 1235673 A2 20020904; EP 1235673 A4 20040428

INPADOC legal status


2005-06-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050513

2004-04-28 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20040316

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7A 41D 19/00 A

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7A 61F 6/04 B

2004-04-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7B 29C 41/22 B

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000519

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

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