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1. (EP1117535) POLYMERIC FILMS

Office : European Patent Office
Application Number: 99946033 Application Date: 26.08.1999
Publication Number: 1117535 Publication Date: 25.07.2001
Publication Kind : A1
Designated States: AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE
Prior PCT appl.: Application Number:EP1999006273 ; Publication Number: Click to see the data
IPC:
B 32B
B32B 27/32
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
32
comprising polyolefins
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
32
comprising polyolefins
CPC:
B32B 27/32
B32B 2250/242
B32B 2307/31
B32B 2307/41
B32B 2307/518
Y10S 428/91
Y10T 428/249986
Y10T 428/249987
Y10T 428/249988
Y10T 428/249992
Y10T 428/249993
Y10T 428/31913
Applicants: HOECHST TRESPAPHAN GMBH
Inventors: BLYTH STUART
Priority Data: 9906273 26.08.1999 EP
9818682 28.08.1998 GB
9820782 25.09.1998 GB
Title: (DE) POLYMERFILME
(EN) POLYMERIC FILMS
(FR) FILMS POLYMERES
Abstract:
(EN) Biaxially oriented films having a substantially non-voided pigmented core layer of a propylene homopolymer, an intermediate layer of a voided propylene homopolymer, and two outer layers of a heat sealable olefin polymer. Such films can be heat sealed to form seals with high seal integrity.
(FR) Ces films à orientation bi-axiale comportent une couche matrice pigmentée sensiblement non alvéolée en homopolymère de propylène, une couche intermédiaire en homopolymère de propylène alvéolé, et deux couches extérieures en polymère d'oléfine thermo-soudable. De tels films, qui se prêtent au thermosoudage, permettent la réalisation d'éléments hermétiques à haut degré d'intégrité hermétique.
Also published as:
MXPA/a/2001/002122US6521333CA2341900AU1999058553WO/2000/012305