Premise: Thiokol ( variously Thiokol Chemical Corporation , Morton-Thiokol Inc. , Cordant Technologies Inc. , Thiokol Propulsion , AIC Group , ATK Thiokol ; finally ATK Launch Systems Group before becoming part of Orbital ATK ) was an American corporation concerned initially with rubber and related chemicals , and later with rocket and missile propulsion systems . Its initial business was a range of synthetic rubber and polymer sealants , and Thiokol was a major supplier of liquid polymer sealants during World War II . When scientists at the Jet Propulsion Laboratory discovered that Thiokol 's polymers made ideal binders for solid rocket fuels , Thiokol moved into the new field , opening laboratories at Elkton , Maryland , and later production facilities at Elkton and at Redstone Arsenal in Huntsville , Alabama .
Hypothesis: Thiokol was concerned with materials.
Label: ENTAILMENT