Thermosetting plastic foam
AssigneeExxonMobil Chemical Patents Inc.
InventorsRobert H. Blanpied, James Darryl Thornsberry, Steven E. Silverberg, James R. Lattner, C. Harry McMullen, Leonel E. Sanchez, Tronze-I Dennis Wu
Life of this patent
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Abstract
A thermosetting plastic foam solid formed from the reaction product of: (a) either polyisocyanate or isocyanate-based foam; (b) a polyol-based foam; (c) a catalyst which is capable of promoting the thermosetting reaction between the polyisocyanate or isocyanate-based foam and the polyol-based foam; and (d) a blowing agent which comprises a high purity cyclopentane product, wherein the high purity cyclopentane product is about 95% or greater pure cyclopentane, and, optionally, (e) water and/or (f) liquid flame retardant.
Claims13
A rigid thermosetting plastic polyester polyol-based foam made by a process using a blowing agent composition comprising foam having cyclopentane, said cydopentane as an insulating gas inside closed cells, wherein the cyclopentane used in said blowing agent composition contains less than twenty two percent impurities in the form of hexane isomers and n-pentane and wherein said cyclopentane is miscible with said polyester polyol without surfactants or emulsifiers.
In a rigid thermosetting plastic polyol-based foam made by a process using a blowing agent composition comprising cyclopentane, wherein the blowing agent composition is mixed with a polyol, the improvement comprising using as the cyclopentane in said blowing agent a cyclopentane which is miscible with a polyester polyol in a weight ratio of polyol to cyclopentane in the range of 80/20 to 20/80 and wherein said cyclopentane is miscible with said polyester polyol without surfactants or emulsifiers.
An article comprising a rigid thermosetting plastic polyester polyol-based foam made by a process using a blowing agent comprising cyclopentane, said foam having cyclopentane as an insulating gas inside closed cells, wherein cyclopentane used as said blowing agent contains less than twenty two percent impurities in the form of hexane isomers and n-pentane and wherein said cyclopentane is miscible with said polyester polyol without surfactants or emulsifiers.
Dependencies are inferred from the claim text.