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US 4,058,500 AGranted
Sulphur cements, process for making same and sulphur concretes made therefrom
OwnerAlan H. Vroominventor
Life of this patent
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Abstract
Novel sulphur cements and concretes are provided. They contain, in addition to the sulphur, a particularly recited olefinic hydrocarbon polymer material, either added as such or prereacted with sulphur, as a chemical stabilizer, and a particularly recited particulate viscosity increasing, surface active, stabilizer, e.g. fly ash. Novel sulphur concretes are provided made from such sulphur cement and conventional natural or manufactured aggregates.
Claims24
A sulphur cement composition comprising:
- a. sulphur;
- b. a viscosity increasing surface active finely divided particulate stabilizer;
- and c. up to about 10 parts by weight of the total amount of sulphur of an olefinic hydrocarbon polymer material derived from petroleum and having a non-volatile content greater than about 50% by weight and a minimum Wijs iodine number of about 100 cg/g;
- and which is capable of reacting with sulphur to form a sulphur-containing polymer.
1 more element
A sulphur concrete comprising:
- A. a sulphur cement composition comprising
- a. sulphur,
- b. a viscosity increasing surface active finely divided particulate stabilizer,
- and c. up to about 10 parts by weight of the total amount of sulphur of an olefinic hydrocarbon polymer material derived from petroleum and having a non-volatile content greater than about 50% by weight and a minimum Wijs iodine number of about 100 cg/g;
- and which is capable of reacting with sulphur to form a sulphur-containing polymer;
- and B. natural or manufactured aggregates.
3 more elements
A process for preparing a sulphur cement composition which comprises:
- prereacting an olefinic hydrocarbon polymer material derived from petroleum and having a non-volatile content greater than about 50% by weight and a minimum Wijs iodine number of about 100 cg/g with sulphur at a temperature not exceeding about 155.degree. C.;
- then adding the sulphur-containing polymer to further molten sulphur;
- and finally adding sufficient finely divided particulate stabilizer thereto to provide a composition of the required consistency.
Dependencies are inferred from the claim text.