Method of treating urethane resin, composition for recycling same, and regeneration method
Disclosed is a method of adding a compound having at least one group selected from the group consisting of a carboxyl group, salts thereof, esters thereof and haloformyl groups or an acid anhydride, as a treating agent, to a resin decomposed substance prepared by decomposing a urethane bond of a ure...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Disclosed is a method of adding a compound having at least one group selected from the group consisting of a carboxyl group, salts thereof, esters thereof and haloformyl groups or an acid anhydride, as a treating agent, to a resin decomposed substance prepared by decomposing a urethane bond of a urethane resin, and adding an epoxy resin or isocyanate compound to the product, to regenerate the resin. According to the present invention, reaction activity in producing a regenerated resin from a urethane resin decomposed substance is appropriately suppressed, and thus regeneration of a urethane resin can be carried out by easy procedures. |
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