CA2067721A1 - Conductive polymer compositions - Google Patents
Conductive polymer compositionsInfo
- Publication number
- CA2067721A1 CA2067721A1 CA2067721A CA2067721A CA2067721A1 CA 2067721 A1 CA2067721 A1 CA 2067721A1 CA 2067721 A CA2067721 A CA 2067721A CA 2067721 A CA2067721 A CA 2067721A CA 2067721 A1 CA2067721 A1 CA 2067721A1
- Authority
- CA
- Canada
- Prior art keywords
- composition
- carbon black
- weight
- conductive polymer
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title abstract 7
- 229920001940 conductive polymer Polymers 0.000 title abstract 2
- 239000006229 carbon black Substances 0.000 abstract 4
- 235000019241 carbon black Nutrition 0.000 abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
- Laminated Bodies (AREA)
- Thermistors And Varistors (AREA)
Abstract
A conductive polymer composition having PTC characteristics comprising a polymer matrix, constituting from 20 to 98 per cent by weight of the composition, throughout which is dispersed a mixture of conductive carbon blacks constituting from 2 to 80 per cent by weight of the composition, the mixture comprising a first conductive carbon black and a second conductive carbon black, is characterised in that each of the carbon blacks has a structure level, as measured by DBP technique, of 40 to 150 cc/100g and each constitutes from 1 to 40 per cant by weight of the composition, the first carbon black comprising particles having average size in the range from 35 to 300 nm and the second carbon black comprising particles having average size in the range from 15 to 25 nm.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919109856A GB9109856D0 (en) | 1991-05-04 | 1991-05-04 | Conductive polymer compositions |
| GB9109856.6 | 1991-05-04 | ||
| EP92303472A EP0512703B1 (en) | 1991-05-04 | 1992-04-16 | Process for preparing conductive polymer compositions |
| EP92303472.2 | 1992-04-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2067721A1 true CA2067721A1 (en) | 1992-11-05 |
| CA2067721C CA2067721C (en) | 2000-10-24 |
Family
ID=26132005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2067721 Expired - Fee Related CA2067721C (en) | 1991-05-04 | 1992-04-30 | Conductive polymer compositions |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2604517B2 (en) |
| CA (1) | CA2067721C (en) |
| FI (1) | FI109805B (en) |
| NO (1) | NO304696B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2772776B1 (en) * | 1997-12-23 | 2002-03-29 | Atochem Elf Sa | POLYAMIDE-BASED ANTISTATIC COMPOSITIONS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093702A (en) * | 1983-10-26 | 1985-05-25 | 松下電器産業株式会社 | Method of producing conductive composition |
| JPS63270830A (en) * | 1987-04-28 | 1988-11-08 | 東レ株式会社 | Yarn-shaped heat generator |
| JP2646245B2 (en) * | 1988-09-13 | 1997-08-27 | 株式会社ジェイエスピー | Conductive polyethylene foam particles |
-
1992
- 1992-04-30 NO NO920937A patent/NO304696B1/en not_active IP Right Cessation
- 1992-04-30 CA CA 2067721 patent/CA2067721C/en not_active Expired - Fee Related
- 1992-05-04 FI FI921996A patent/FI109805B/en not_active IP Right Cessation
- 1992-05-06 JP JP15845592A patent/JP2604517B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| NO921705D0 (en) | 1992-04-30 |
| NO304696B1 (en) | 1999-02-01 |
| FI921996A (en) | 1992-11-05 |
| FI109805B (en) | 2002-10-15 |
| CA2067721C (en) | 2000-10-24 |
| JP2604517B2 (en) | 1997-04-30 |
| FI921996A0 (en) | 1992-05-04 |
| JPH06157919A (en) | 1994-06-07 |
| NO921705L (en) | 1992-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |