Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-03-04
1988-02-16
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
252182, 525486, 528 89, 528 90, 528 91, 528 92, 528 93, 528408, 528409, C08G 5902
Patent
active
047256524
ABSTRACT:
Latent catalysts for epoxy reactions are prepared by reacting a tetrasubstituted onium compound such as tetrabutylphosphonium acetate.acetic acid complex or an amine compound with an acid having a weak-nucleophilic anion such as fluoboric acid. These catalysts provide stable latent catalysts for epoxy resins for advancement or curing reactions.
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McBride et al., "Arylation of Dialkyl Sulfides", J. Org. Chem., 49, 1824-1825 (1984).
Bertram James L.
Stuart Van I. W.
Walker Louis L.
Nielsen Earl
The Dow Chemical Company
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