# US 5,688,317 A · Carbon blacks

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- Number: US 5,688,317 A
- Document ID: US5688317A
- Status: Granted
- Kind: A
- Application number: 08/375,015
- Filed: 1995-01-19
- Granted: 1997-11-18
- Earliest claimed: 1992-08-27
- Assignees: Cabot Corporation
- Inventors: Bruce E. Mackay; Mark A. Wilkinson; Barrie J. Yates
- Web page: https://patentgrep.com/patent/US5688317A

## CPC

- C09C 1/50: Furnace black {; Preparation thereof (separation or recovery C09C1/487)}
- C08K 3/04: Carbon
- C08L 23/16: Ethylene-propylene or ethylene-propylene-diene copolymers
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C01P 2006/10: Solid density
- C01P 2006/19: Oil-absorption capacity, e.g. DBP values
- C08K 2201/006: Additives being defined by their surface area
- C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## 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.

## Claims

### Claim 1

A carbon black having an I.sub.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 (depends on 1)

A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 1.

### Claim 3

A carbon black having an I.sub.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 4 (depends on 3)

A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 3.

### Claim 5

A carbon black having an I.sub.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 6 (depends on 5)

A composition of matter comprising: a material selected from the group consisting of rubbers and plastics; and a carbon black of claim 5.