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1. (WO1997015933) IMPROVED ELECTRICALLY AND THERMALLY CONDUCTING COMPOSITIONS FOR ACTUATORS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015933 International Application No.: PCT/US1996/015867
Publication Date: 01.05.1997 International Filing Date: 03.10.1996
Chapter 2 Demand Filed: 16.05.1997
IPC:
C08K 7/28 (2006.01) ,C08K 9/00 (2006.01) ,C08K 9/02 (2006.01) ,C08K 9/10 (2006.01) ,C08L 91/06 (2006.01) ,H01B 1/22 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
7
Use of ingredients characterised by shape
22
Expanded, porous or hollow particles
24
inorganic
28
Glass
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
9
Use of pretreated ingredients
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
9
Use of pretreated ingredients
02
Ingredients treated with inorganic substances
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
9
Use of pretreated ingredients
10
Encapsulated ingredients
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
91
Compositions of oils, fats or waxes; Compositions of derivatives thereof
06
Waxes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1
Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
20
Conductive material dispersed in non-conductive organic material
22
the conductive material comprising metals or alloys
Applicants:
HOECHST CELANESE CORPORATION [US/US]; Route 202-206 Somerville, NJ 08876-1258, US
Inventors:
LONG, Barbara, J.; US
HAIDER, M., Ishaq; US
MENCZEL, Joseph, D.; US
STAMATOFF, James, B.; US
Agent:
GENOVA, John, M.; Hoechst Celanese Corporation 86 Morris Avenue Summit, NJ 07901 , US
Priority Data:
08/547,04323.10.1995US
Title (EN) IMPROVED ELECTRICALLY AND THERMALLY CONDUCTING COMPOSITIONS FOR ACTUATORS
(FR) COMPOSITIONS CONDUCTRICES ELECTRIQUES ET THERMIQUES DESTINEES A DES ACTUATEURS
Abstract:
(EN) This invention discloses a thermally expandable composition for use in actuators. The composition contains about 10-50 volume percent hollow glass spheres in a wax or a polymer. The spheres contain a conducting coating affixed thereon. During use in an actuator, the composition is heated to melt the wax or polymer, when the density of the spheres substantially match the density of the melt, thereby substantially eliminating phase separation. The high thermal conductivity of the composition increases the speed of heat transfer out of the composition during the cooling cycles.
(FR) On décrit une composition à expansion thermique, utilisée dans des actuateurs, dont quelque 10 à 50 % du volume sont constitués de sphères creuses en verre noyées dans une cire ou un polymère et présentant à leur surface un revêtement conducteur. Lors de son utilisation dans un actuateur, cette composition est chauffée jusqu'à la fusion de la cire ou du polymère, moment où la densité des sphères correspond sensiblement à celle du produit de fusion, ce qui élimine en pratique la séparation de phase. La conductivité thermique élevée de cette composition accroît la vitesse du transfert thermique en provenant pendant les cycles de refroidissement.
Designated States: European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)