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1. (EP1913084) LOW COST MULTILAYER ELASTOMERIC FILMS HAVING A LOW PERMANENT SET

Office : European Patent Office
Application Number: 06758757 Application Date: 28.04.2006
Publication Number: 1913084 Publication Date: 23.04.2008
Publication Kind : B1
Designated States: AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LI, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR
Prior PCT appl.: Application Number:US2006016312 ; Publication Number: Click to see the data
IPC:
C08L 53/02
B32B 25/00
B32B 27/00
C08L 23/16
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
53
Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
02
of vinyl aromatic monomers and conjugated dienes
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
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
27
Layered products essentially comprising synthetic resin
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02
not modified by chemical after-treatment
16
Ethene-propene or ethene-propene-diene copolymers
CPC:
B32B 27/08
A61F 13/4902
B32B 5/08
B32B 27/302
B32B 27/32
B32B 2323/04
B32B 2323/10
C08L 23/08
C08L 23/0815
C08L 23/0892
C08L 23/10
C08L 23/14
C08L 23/142
C08L 23/16
C08L 53/00
C08L 53/02
C08L 53/025
Y10T 156/1069
Y10T 428/31504
Y10T 428/31551
Y10T 428/31573
Y10T 428/31587
Y10T 428/31855
Y10T 442/674
Y10T 442/678
Applicants: PLIANT LLC
Inventors: SABBAGH AMIEL
HOENIGMANN MARTIN
BECKE GAIL
Priority Data: 2006016312 28.04.2006 US
69230805 20.06.2005 US
Title: (DE) BILLIGE MEHRSCHICHTIGE ELASTOMERE FOLIEN MIT KLEINEM DRUCKVERFORMUNGSREST
(EN) LOW COST MULTILAYER ELASTOMERIC FILMS HAVING A LOW PERMANENT SET
(FR) FILMS MULTICOUCHES ELASTOMERIQUES A FAIBLE COUT PRESENTANT UNE FAIBLE DEFORMATION PERMANENTE
Abstract:
(EN) The presently described technology provides a low cost multilayer elastomeric film containing at least one layer of styrene block copolymer and at least one elastomer layer substantially free of styrene block copolymer such that the resultant film has a low permanent set substantially equal to or less than a film comprised of styrene block copolymer only. The elastomeric film may be used in elasticized features of various articles, such as disposable absorbent articles. Methods for producing the low cost elastomeric film having a low permanent set are also described.
(FR) La présente invention concerne un film multicouche élastomérique à faible coût contenant au moins une couche d'un copolymère séquencé de styrène et au moins une couche d'élastomère essentiellement exempte de copolymère séquencé de styrène, de façon à ce que le film résultant présente une faible déformation permanente essentiellement inférieure ou égale à celle d'un film composé uniquement de copolymère séquencé de styrène. Le film élastomérique peut être utilisé dans les éléments élastiques de divers articles, tels que des articles absorbants jetables. L'invention concerne également des procédés de fabrication de ce film élastomérique à faible coût présentant une faible déformation permanente.
Also published as:
MXMX/a/2007/015590CA2609987WO/2007/001619