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1. WO2002102898 - HIGH-FREQUENCY ACTIVE POLYMERIC COMPOSITIONS AND FILMS

Publication Number WO/2002/102898
Publication Date 27.12.2002
International Application No. PCT/US2002/015230
International Filing Date 15.05.2002
Chapter 2 Demand Filed 30.12.2002
IPC
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
02
by heating, with or without pressure
04
Dielectric heating, e.g. high-frequency welding
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
12
next to a fibrous or filamentary layer
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
36
comprising polyesters
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
18
Manufacture of films or sheets
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
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
04
Homopolymers or copolymers of ethene
08
Copolymers of ethene
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67
Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
02
Polyesters derived from dicarboxylic acids and dihydroxy compounds
D TEXTILES; PAPER
04
BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
H
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING
13
Other non-woven fabrics
B29C 65/00 (2006.01)
B29C 65/04 (2006.01)
B32B 27/12 (2006.01)
B32B 27/36 (2006.01)
C08J 5/18 (2006.01)
C08L 23/02 (2006.01)
CPC
B29C 65/04
B29C 66/71
B29K 2067/00
B29L 2009/00
B32B 27/08
B32B 27/12
Applicants
  • DOW GLOBAL TECHNOLOGIES INC. [US/US]; Washington Street 1790 Building Midland, MI 48674, US
Inventors
  • KELCH, Robert, H.; US
Agents
  • MORK, Steven, W.; The Dow Chemical Company Intellectual Property P.O. Box 1967 Midland, MI 48641-1967, US
Priority Data
60/298,56415.06.2001US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HIGH-FREQUENCY ACTIVE POLYMERIC COMPOSITIONS AND FILMS
(FR) COMPOSITIONS POLYMERES ACTIVES A HAUTE FREQUENCE ET FILMS ASSOCIES
Abstract
(EN)
High frequency (HF)-active compositions having a dielectric loss factor of 0.05 or more at 27 MHz and 23°C contain a blend of a low molecular weight copolyester and a carboxyl-containing polyolefin, where to copolyester is present at a concentration of 20 to 80 weight-percent of the composition. The compositions are useful for making HF-active films and articles containing such HF-active films.
(FR)
La présente invention se rapporte à des compositions actives à haute fréquence (HF) présentant un facteur de pertes diélectriques supérieur ou égal à 0,05, à 27 MHz et 23° C, et contenant un mélange d'un copolyester à faible poids moléculaire et d'une polyoléfine contenant un carboxyle. Ledit copolyester étant présent dans une proportion comprise entre 20 et 80 pourcent en poids de la composition. Ces compositions s'avèrent utiles pour la fabrication de films actifs à haute fréquence et d'articles contenant de tels films actifs à haute fréquence.
Also published as
Latest bibliographic data on file with the International Bureau