Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1990-11-08
1993-01-12
Clingman, A. Lionel
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
252153, 252170, 252171, 252172, 252DIG8, 134 38, 134 39, 134 40, C09D 900, C11D 722, C11D 750
Patent
active
051787881
ABSTRACT:
A co-solvent system for the dissolution of cured flexible polyurethane foams, cured rigid polyurethane foams, and cured polyester resins is disclosed. The co-solvent system comprises a mixture of an alkylene carbonate and tetramethyl urea.
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H. L. Jackson and R. J. Gallagher, Jr., "DBE Purges Polyurethane Equipment Without Methylene Chloride Risks", Elastomerics, Oct. 1990, pp. 59-60.
A. Luttringhaus and H. W. Dirkson, "Tetramethylurea as a Solvent and Reagent", Angew. Chem. Internat. Edit. vol. 3 (1964) No. 4, pp. 260-269.
Cuscurida Michael
Marquis Edward T.
Clingman A. Lionel
Park Jack H.
Parks William S.
Priem Kenneth R.
Stolle Russell R.
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