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1. WO2000012305 - POLYMERIC FILMS

Publication Number WO/2000/012305
Publication Date 09.03.2000
International Application No. PCT/EP1999/006273
International Filing Date 26.08.1999
Chapter 2 Demand Filed 20.03.2000
IPC
B32B 27/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
32comprising polyolefins
CPC
B32B 2250/242
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2250Layers arrangement
24All layers being polymeric
242All polymers belonging to those covered by group B32B27/32
B32B 2307/31
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
30having particular thermal properties
31Heat sealable
B32B 2307/41
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
40having particular optical properties
41Opaque
B32B 2307/518
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2307Properties of the layers or laminate
50having particular mechanical properties
514Oriented
518bi-axially
B32B 27/32
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
32comprising polyolefins
Y10S 428/91
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
428Stock material or miscellaneous articles
91Product with molecular orientation
Applicants
  • HOECHST TRESPAPHAN GMBH [DE]/[DE] (AllExceptUS)
  • BLYTH, Stuart [GB]/[GB] (UsOnly)
Inventors
  • BLYTH, Stuart
Agents
  • LUDERSCHMIDT, Wolfgang
Priority Data
9818682.828.08.1998GB
9820782.225.09.1998GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(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.
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