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US 6,548,573 B1Granted
Composition and process for making a water and mud repellant rubber
AssigneeCaterpillar Inc.
InventorCarl H. Rempert
Life of this patent
Estimating the term…
Abstract
A water and mud repellant compound is provided for frictionally engaged rubber surfaces, such as treads, and, in particular, to a compound for use in the manufacture of a rubber track belt on a mobile track system of a tractor.
Claims12
A composition, for use in a hydrophobic rubber, comprising:
- a filler, and
- a compound having the formula:
- R1—(CH2)x—Sy—R2;
- wherein R1 is a hydrophobic, silicon-based blocking agent;
- Sy is a sulfur-based functional group;
- R2 is an unsaturated rubber polymer;
- and
- substantially no bonds are formed between the filler and the blocking agent.
5 more elements
Dependencies are inferred from the claim text.