Back to results
US 10,882,984 B2Granted
Viscoelastic mud and preparation method thereof
AssigneeGuangxi Sisland Industrial Co. Ltd
InventorYueliu Zhou
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a viscoelastic mud and a preparation method thereof. The viscoelastic mud is produced from raw materials including, by weight percent, 4% to 20% of elastomer, 0% to 40% of softening oil, and 40% to 96% of liquid rubber. The elastomer is at least one selected from the group consisting of styrenic block copolymer and semi-solid polyisobutylene rubber.
Claims10
A viscoelastic mud, wherein the viscoelastic mud is produced from raw materials comprising:
- by weight percent, 4% to 20% of elastomer, 0% to 40% of softening oil, and 40% to 96% of liquid rubber;
- wherein the elastomer is at least one selected from the group consisting of styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS), and hydrogenated styrene-butadiene-isoprene-styrene block copolymer (SEEPS), the liquid rubber is at least one selected from the group consisting of nitrile butadiene rubber and butyl rubber.
A method of preparing a viscoelastic mud, comprising:
- weighing 4% to 20% by weight of elastomer, 0% to 40% by weight of softening oil, and 40% to 96% by weight of liquid rubber;
- wherein the elastomer is at least one selected from the group consisting of styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS), and hydrogenated styrene-butadiene-isoprene-styrene block copolymer (SEEPS), the liquid rubber is at least one selected from the group consisting of nitrile butadiene rubber and butyl rubber;
- mixing the elastomer, the softening oil, and the liquid rubber at room temperature under continuous stirring to obtain a mixture;
- and
- melting the mixture at a temperature of about 120° C. to about 220° C. to obtain the viscoelastic mud.
2 more elements
Dependencies are inferred from the claim text.