公开(公告)号：CA2192363C

公开(公告)日：2005-10-25

申请号：CA2192363

申请日：1995-06-07

Applicant: RAYCHEM CORP

Inventor： CHANDLER DANIEL A ,  MATTHIESEN MARTIN ,  LEONG DEREK

IPC: H01C1/14 ,  H01C7/02

Abstract: An electrical device (1) in which an element (7) composed of a conductive polymer is positioned in contact with the surface layer of one or more metal electrodes (3,5). The metal electrode contains a base layer (9) which comprises a first metal, an intermediate metal layer (15) which comprises a metal that is different from the first metal, and a surface layer (17) which (i) comprises a second metal, (ii) has a center line average roughness ~a of at least 1.3, and (iii) has a reflection density R d of at least 0.60. The conductive polymer composition preferably exhibits PTC behavior. The electrical devices, which may be, for example, circuit protection devices or heaters, have improved thermal and electrical performance over devices prepared with electrodes which do not meet the center line average roughness and reflection density requirements.

公开(公告)号：DE69513656T2

公开(公告)日：2000-07-13

申请号：DE69513656

申请日：1995-06-07

Applicant: RAYCHEM CORP

Inventor： CHANDLER DANIEL ,  MATTHIESEN MARTIN ,  LEONG DEREK

IPC: H01C1/14 ,  H01C7/02

Abstract: The use for an electrical device (1) of an element (7) composed of a conductive polymer is positioned in contact with the surface layer of one or more metal electrodes (3, 5). The metal electrode contains a base layer (9) which comprises a first metal, an intermediate metal layer (15) which comprises a metal that is different from the first metal, and a surface layer (17) which (i) comprises a second metal, (ii) has a centre line average roughness Ra of at least 1.3, and (iii) has a reflection density Rd of at least 0.60. The conductive polymer composition preferably exhibits PTC behaviour. The electrical devices, which may be, for example, circuit protection devices or heaters, have improved thermal and electrical performance over devices compared with electrodes which do not meet the centre line average roughness and reflection density requirements.

公开(公告)号：DE69513656D1

公开(公告)日：2000-01-05

申请号：DE69513656

申请日：1995-06-07

Applicant: RAYCHEM CORP

Inventor： CHANDLER DANIEL ,  MATTHIESEN MARTIN ,  LEONG DEREK

IPC: H01C1/14 ,  H01C7/02

Abstract: The use for an electrical device (1) of an element (7) composed of a conductive polymer is positioned in contact with the surface layer of one or more metal electrodes (3, 5). The metal electrode contains a base layer (9) which comprises a first metal, an intermediate metal layer (15) which comprises a metal that is different from the first metal, and a surface layer (17) which (i) comprises a second metal, (ii) has a centre line average roughness Ra of at least 1.3, and (iii) has a reflection density Rd of at least 0.60. The conductive polymer composition preferably exhibits PTC behaviour. The electrical devices, which may be, for example, circuit protection devices or heaters, have improved thermal and electrical performance over devices compared with electrodes which do not meet the centre line average roughness and reflection density requirements.

公开(公告)号：MX9606205A

公开(公告)日：1998-06-30

申请号：MX9606205

申请日：1996-12-06

Applicant: RAYCHEM CORP

Inventor： CHANDLER DANIEL A ,  MATTHIESEN MARTIN ,  LEONG DEREK

IPC: H01C1/14 ,  H01C7/02 ,  H01C01/14

Abstract: Un dispositivo eléctrico (1), en donde un elemento (7) compuesto de un polímero conductor, se coloca en contacto con la capa superficial de uno o más electrodos de metal (3, 5). El electrodo de metal contiene una capa base (9) que comprende un primer metal, una capa de metal intermedia (15) que comprende un metal que es diferente del primer metal, y una capa superficial (17) que (i) comprende un segundo metal, (ii) tiene una rugosidad promedio de la línea central Ra de cuando menos 1.3 y (iii) tiene una densidad de reflejo Rd de cuando menos 0.60. La composicion polimérica conductora de preferencia exhibe un comportamiento de coeficiente de temperatura positivo. Los dispositivos eléctricos, que pueden ser, por ejemplo, dispositivos de proteccion de circuito ò calentadores. tienen un mejor funcionamiento térmico y eléctrico sobre los dispositivos preparados con electrodos que no cumplen con lo requerimientos de rugosidad promedio de la línea central y densidad de reflejo.