1. WO2026174356 - ELASTOMERIC CHEMICAL BARRIER ARTICLES

Publication Number WO/2026/174356

Publication Date 27.08.2026

International Application No. PCT/AU2026/050139

International Filing Date 20.02.2026

IPC

B32B 25/04 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
04	comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance

B32B 25/08 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
04	comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
08	of synthetic resin

B32B 25/16 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
16	comprising polydienes or poly-halodienes

B32B 25/14 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
14	comprising copolymers in which synthetic rubber constituents predominate

B32B 25/10 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
10	next to a fibrous or filamentary layer

B32B 25/04 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
04	comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance

B32B 25/08 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
04	comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
08	of synthetic resin

B32B 25/16 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
16	comprising polydienes or poly-halodienes

B32B 25/14 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
14	comprising copolymers in which synthetic rubber constituents predominate

B32B 25/10 2006.1

B	PERFORMING OPERATIONS; TRANSPORTING
32	LAYERED PRODUCTS
B	LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
25	Layered products essentially comprising natural or synthetic rubber
10	next to a fibrous or filamentary layer

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Applicants

• ANSELL LIMITED [AU]/[AU]

Inventors

• PIMENTEL DE OLIVEIRA, Geraldo Alexandre
• SEE, Ee Chun
• HAMID, Muhammad Ishkandar bin Abdul
• HAWARI, Humaidy Azwan bin
• KASIM, Nurulhuda Nabilah binti
• ZULKIFLI, Nur Athirah binti
• MANSOR, Muhammad Azif bin

Agents

• GLMR PTY LTD

Priority Data

63/762,527

24.02.2025

US

Publication Language English (en)

Filing Language English (en)

Designated States

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AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MU, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

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Title

(EN) ELASTOMERIC CHEMICAL BARRIER ARTICLES

(FR) ARTICLES ÉLASTOMÈRES DE BARRIÈRE CHIMIQUE

Abstract

(EN) An elastomeric article having a layered structure, which includes an outer elastomeric barrier layer bonded to a middle elastomeric layer comprising polyvinyl alcohol, which is bonded to an inner elastomeric layer. A method of forming and using the elastomeric article are also disclosed.

(FR) L'invention concerne un article élastomère ayant une structure en couches, qui comprend une couche barrière élastomère externe liée à une couche élastomère intermédiaire comprenant de l'alcool polyvinylique, qui est liée à une couche élastomère interne. L'invention concerne également un procédé de formation et d'utilisation de l'article élastomère.

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