US5688317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon blacks
Assignee: Cabot Corp
•
Filing: 1995-01-19
•
Granted: 1997-11-18
•
Expires: 2015-01-19
Abstract
Abstract Novel carbon blacks that impart advantageous properties to rubber and plastic compositions and may be utilized in the place of lamp blacks, thermal carbon blacks and blends of carbon blacks. Also disclosed are novel rubber and plastic compositions incorporating the novel carbon blacks which exhibit the advantageous combinations of compound processing and physical performance properties.
Inventors
- 👤 Bruce E. Mackay
- 👤 Mark A. Wilkinson
- 👤 Barrie J. Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:00
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08L; C08L23/00; C08L23/02; C08L23/16; C08L91/00; C01; C01P; C01P2006/00; C01P2006/10; C01P2006/19; C08K2201/00; C08K2201/002; C08K2201/006
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
27 words
A carbon black having an I 2 No. of 8-17 mg/g; a DBP of 45-55 cc/100 g and a volatiles content of less than 2%, by weight.
Claim 2
Dependent Claim
27 words
A carbon black having an I 2 No. of 8-17 mg/g; a DBP of 45-55 cc/100 g and a volatiles content of less than 2%, by weight.
Claim 3
Dependent Claim
23 words
A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 1.
Claim 4
Dependent Claim
27 words
A carbon black having an I 2 No. of 8-22 mg/g; a DBP of 54-70 cc/100 g and an M-Ratio of the carbon black aggregate of 1.25-2.00.
Claim 5
Dependent Claim
27 words
A carbon black having an I 2 No. of 8-22 mg/g; a DBP of 54-70 cc/100 g and an M-Ratio of the carbon black aggregate of 1.25-2.00.
Claim 6
Dependent Claim
23 words
A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 3.
Claim 7
Dependent Claim
27 words
A carbon black having an I 2 No. of 8-32 mg/g; a DBP of 71-150 cc/100 g and an M-Ratio of the carbon black aggregate of 1.25-2.00.
Claim 8
Dependent Claim
27 words
A carbon black having an I 2 No. of 8-32 mg/g; a DBP of 71-150 cc/100 g and an M-Ratio of the carbon black aggregate of 1.25-2.00.
Claim 9
Dependent Claim
23 words
A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |