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公开(公告)号：DE69416128T2
公开(公告)日：1999-09-02
申请号：DE69416128
申请日：1994-06-27
Applicant: RAYCHEM CORP
Inventor： CHU EDWARD , BANICH ANN , IVES ROBERT , SUNSHINE STEVEN , CHAN CHI-MING
Abstract: A conductive polymer composition which has a resistivity of less than 10 ohm-cm and which exhibits PTC behavior comprises a polymeric component and a particulate conductive filler. The polymeric component comprises a first crystalline fluorinated polymer having a first melting point Tm1 and a second crystalline fluorinated polymer having a second melting point Tm2 which is from (Tm1+25) DEG C. to (Tm1+100) DEG C. The composition exhibits one of a number of characteristics, including a relatively high PTC anomaly. The composition is useful in circuit protection devices to be used at high ambient conditions.
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公开(公告)号：CA2076000A1
公开(公告)日：1991-08-15
申请号：CA2076000
申请日：1991-02-14
Applicant: RAYCHEM CORP
Inventor： FANG SHOU-MEAN , DHINGRA VIJAY K , CHAN CHI-MING , CHANDLER DANIEL
Abstract: 2076000 9112616 PCTABS00006 An electrical device (1) in which a first connection element (7) is in electrical contact with a resistive element (3). The first connection element (7) defines a cavity (11) into which, when the cavity is empty, a second connection element (21) can be inserted. The second connection element (21), which may be connected to a source of electrical power, is partially within the cavity (11), makes physical and electrical contact with the first connection element (7), and protrudes from the cavity. Such devices (1) can be made in a continuous process by a method of the invention. They are particularly suitable for insertion into a circuit board (31).
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公开(公告)号：DE3378840D1
公开(公告)日：1989-02-09
申请号：DE3378840
申请日：1983-09-28
Applicant: RAYCHEM CORP
Inventor： MOLINARI ROBERT JAMES , CHANDLER DANIEL ALAN , CHAN CHI-MING
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公开(公告)号：AT39741T
公开(公告)日：1989-01-15
申请号：AT83305820
申请日：1983-09-28
Applicant: RAYCHEM CORP
Inventor： MOLINARI ROBERT JAMES , CHANDLER DANIEL ALAN , CHAN CHI-MING
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公开(公告)号：DE69124256T2
公开(公告)日：1997-08-14
申请号：DE69124256
申请日：1991-09-26
Applicant: RAYCHEM CORP
Inventor： CHAN CHI-MING , FANG SHOU-MEAN
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Patent Agency Ranking
公开(公告)号：AT132433T
公开(公告)日：1996-01-15
申请号：AT89904903
申请日：1989-03-21
Applicant: RAYCHEM CORP
Inventor： CHAN CHI-MING , CHAN RANDOLPH WINSTON , NYBERG DAVID DOLPH
Abstract: Permanent indicia can be applied to a surface consisting of a polymeric composition having a specific gravity less than about 1.35, and having a roughness average of at least about 2 mu m and an average peak width of less than about 200 mu m. The indicia are resistant to organic solvents, smearing and abrasion without a permatizing step. The surface can be, for example, the polymeric surface of a marker sleeve, preferably a heat-recoverable marker sleeve.
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公开(公告)号：AT79487T
公开(公告)日：1992-08-15
申请号：AT87308610
申请日：1987-09-29
Applicant: RAYCHEM CORP
Inventor： BARMA PRADEEP , CHAN CHI-MING
Abstract: A dish antenna (12) for receiving or transmitting signals, eg. via a satellite, is heated by means of radiant heat from electrical heater (2-5) located behind the antenna and spaced apart therefrom. This keeps the antenna free from ice and snow and minimizes distortion. The heater is preferably a self-regulating sheet heater comprising a PTC conductive polymer.
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公开(公告)号：CA1292800C
公开(公告)日：1991-12-03
申请号：CA548071
申请日：1987-09-29
Applicant: RAYCHEM CORP
Inventor： BARMA PRADEEP , CHAN CHI-MING
Abstract: A dish antenna for receiving or transmitting signals, eg. via a satellite, is heated by means of radiant heat from an electrical heater located behind the antenna and spaced apart therefrom. This keeps the antenna free from ice and snow and minimizes distortion. The heater is preferably a self-regulating sheet heater comprising a PTC conductive polymer.
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公开(公告)号：BR8907329A
公开(公告)日：1991-03-26
申请号：BR8907329
申请日：1989-03-21
Applicant: RAYCHEM CORP
Inventor： CHAN CHI-MING , CHAN RANDOLPH WINSTON , NYBERG DAVID DOLPH
Abstract: Permanent indicia can be applied to a surface consisting of a polymeric composition having a specific gravity less than about 1.35, and having a roughness average of at least about 2 mu m and an average peak width of less than about 200 mu m. The indicia are resistant to organic solvents, smearing and abrasion without a permatizing step. The surface can be, for example, the polymeric surface of a marker sleeve, preferably a heat-recoverable marker sleeve.
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公开(公告)号：DK228590A
公开(公告)日：1990-09-21
申请号：DK228590
申请日：1990-09-21
Applicant: RAYCHEM CORP
Inventor： CHAN CHI-MING , CHAN RANDOLPH WINSTON , NYBERG DAVID DOLPH
Abstract: Permanent indicia can be applied to a surface consisting of a polymeric composition having a specific gravity less than about 1.35, and having a roughness average of at least about 2 mu m and an average peak width of less than about 200 mu m. The indicia are resistant to organic solvents, smearing and abrasion without a permatizing step. The surface can be, for example, the polymeric surface of a marker sleeve, preferably a heat-recoverable marker sleeve.
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