Melamine-formaldehyde resins modified with dicyandiamide and sor

Details Melamine-formaldehyde resins modified with dicyandiamide and sor Melamine-formaldehyde resins modified with dicyandiamide and sor

1998-01-14

1999-12-14

Raimund, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

442160, 428530, C08K 320

Patent

active

060019255

ABSTRACT:
Modified melamine-formaldehyde resins prepared by reacting melamine with formaldehyde at a F:M molar ratio in the range of about 1.55:1-2.5:1 under alkaline conditions, wherein the resin is prepared in the presence of about 1-10 wt % dicyandiamide and about 1-10 wt % sorbitol based on the total weight of resin solids. The resins are used to impregnate substrates in the preparation of decorative laminates. The laminates can be used to produce, for example, furniture, countertops or flooring.

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patent: 5298186 (1994-03-01), Mitchell et al.
patent: 5346937 (1994-09-01), Kuchler et al.

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