Viscosity adjustment of ammoniated urea-formaldehyde resin compo

Details Viscosity adjustment of ammoniated urea-formaldehyde resin compo Viscosity adjustment of ammoniated urea-formaldehyde resin compo

1988-01-25

1989-03-14

Ivy, C. Warren

Stock material or miscellaneous articles

Composite

Of aldehyde or ketone condensation product

428530, 156314, 156319, 1563313, 524542, 525517, C08L 6132

Patent

active

048123668

ABSTRACT:
The invention relates to a composition of matter comprising an ammoniated urea-formaldehyde resin and a water soluble dried urea-formaldehyde resin powder wherein the ratio of ammoniated to dried urea-formaldehyde resins is from approximately 20:1 to 1:20 weight. A process for adhering paper to a lignocellulosic substrate using the composition of matter is provided. By this invention, high solids, shelf stable adhesive compositions containing low levels of free formaldehyde are provided which, when catalyzed, will cure under heat and/or pressure, to adhere decorative paper to a lignocellulosic substrate.

REFERENCES:
patent: 3684690 (1987-08-01), Kraus
patent: 3697355 (1972-10-01), Black
patent: 3816236 (1974-06-01), Baymiller
patent: 3827995 (1974-08-01), White
patent: 4119598 (1978-10-01), Pearson
patent: 4247433 (1981-01-01), Schamberg et al.
patent: 4340543 (1982-09-01), Bruquera
patent: 4623691 (1986-11-01), Taylor

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