ˈɔːlsoʊ ɪn ðæt jˈɪɹ, ɐ kənsˈɔːɹɾiəm ʌv fˈaɪv tˈaɪɚ kˈʌmpəniz nˈoʊn æz nˈæʃənəl sɪnθˈɛɾɪk ɹˈʌbɚɹ ˈoʊpənd ɐ plˈænt tə mˌeɪk stˈaɪɹɛnbjˌuːɾeɪdˈaɪiːn ɹˈʌbɚ fɔːɹ tˈaɪɚz nˈiːdᵻd ɪnðə wˈɔːɹ ˈɛfɚt.
Also in that year, a consortium of five tire companies known as National Synthetic Rubber opened a plant to make styrene-butadiene rubber for tires needed in the war effort.