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1. (US6521333) Polymeric films

Office : United States of America
Application Number: 09763725 Application Date: 27.02.2001
Publication Number: 6521333 Publication Date: 18.02.2003
Grant Number: 6521333 Grant Date: 18.02.2003
Publication Kind : B1
Prior PCT appl.: Application Number:EP99006273 ; Publication Number: Click to see the data
IPC:
B32B 27/32
B32B 5/22
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
5
Layered products characterised by the non-homogeneity or physical structure of a layer
22
characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
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
Agents: Powell Goldstein Frazer & Murphy LLP
Priority Data: 9818682 28.08.1998 GB
9820782 25.09.1998 GB
Title: (EN) Polymeric films
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.


Also published as:
MXPA/a/2001/002122EP1117535CA2341900AU1999058553WO/2000/012305