摘要 |
The preparation of phenol-formaldehyde and melamine-formaldehyde resin-based binders extended with a cyclic urea-formaldehyde prepolymer and to products prepared using the binders. More particularly, the invention relates to a cyclic urea prepolymer comprising urea, formaldehyde, and ammonia or a primary amine which, when added to a phenol-formaldehyde or melamine-formaldehyde based resin, results in a useful binder for the manufacturer numerous articles.
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申请人 |
GEORGIA-PACIFIC RESINS, INC. |
发明人 |
DUPRE, F. C.;FOUCHT, MILLARD E.;FREESE, WILLIAM P.;GABRIELSON, KURT D.;GAPUD, BENJAMIN D.;INGRAM, W. HAYES;MCVAY, TED M.;REDIGER, RICHARD A.;SHOEMAKE, KELLY A.;TUTIN, KIM K.;WRIGHT, JAMES T. |