Aldehyde resins with reduced and stabilized free-formaldehyde co

Details Aldehyde resins with reduced and stabilized free-formaldehyde co Aldehyde resins with reduced and stabilized free-formaldehyde co

1994-03-15

1997-05-06

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

524843, 525374, 525521, 528227, C08F 610

Patent

active

056272618

ABSTRACT:
A ketone/formaldehyde crosslinking additive having reduced and stabilized free-formaldehyde content and which are useful in starch based alkaline corrugating adhesive compositions are provided by a process wherein the ketone/aldehyde additives are treated with hydrogen peroxide and further with an urea compound.

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patent: 5079067 (1992-01-01), Willging
patent: 5247066 (1993-09-01), Schoenberg et al.

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