Patent ID: 7988883
Filing Date: 2011-08-02
Classification: A01N,A21D,A23B,A23K,A23L,A23V,A61K,A61Q,B01D,C02F,C07C,C08K,C09D,C09G,C09K,C10M,C10N,C11C,C11D,C12P,Y02W

Abstract:
1. A heat transfer or antifreeze composition comprising 1,3-propanediol, an anti-corrosive in an amount of from 0.01 to 50% by weight, a defoamer in an amount of from 0.01 to 50% by weight, and a dye, wherein said 1,3-propanediol is biologically-derived, comprises peroxides wherein said peroxides concentration is less than about 10 ppm of said 1,3-propanediol, and has a bio-based carbon content of at least 1%, and wherein said composition has a lower anthropogenic CO 2 emission profile as compared to a composition comprising 1,3-propanediol with a bio-based carbon content of 0%.