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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
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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 05:39
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

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