C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 175/04 (2006.01) C08J 3/09 (2006.01) C08J 5/12 (2006.01) C09J 5/10 (2006.01)
Patent
CA 2171277
There is now provided a solvent cement having a total of less than 80 weight percent of solvents and a thermoplastic polyurethane elastomer as at least one of the resins dissolved in the solvent. The solvent mixture contains at least a 5- or 6-membered water miscible lactone or lactam such as N-methyl-2-pyrrolidone (NMP) in an amount of 21 weight percent or less based on the weight of all the ingredients. The reduced solvent concentration assists in lowering VOC emissions while preserving the hydrostatic burst strength mechanical property required by ASTM D 2564-88.
Abel Ulrich W.
James Lawrence E.
Waldrop Mark W.
Abel Ulrich W.
James Lawrence E.
Robic
Waldrop Mark W.
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