High solids methylated urea-formalde-hyde coating compositions
Abstract
Abstract THERE ARE PROVIDED HIGH SOLIDS METHYLATED UREA-FORMALDEHYDE RESIN COMPOSITIONS COMPRISING (1) AT LEAST 80%, BY WEIGHT, OF A BLEND OF (A) LIQUID OR SYRUPY METHYLATED UREA-FORMALDEHYDE RESINS COMPOSED OF UREA, FORMALDEHYDE, AND METHANOL IN 1:2-3:1-2.5 MOLAR RATIO, RESPECTIVELY, AND (B) A MONOFUNCTIONAL BRANCHED-CHAIN ALIPHATIC ALCOHOL WHEREIN THE ALCOHOL IS PRESENT IN AN AMOUNT EQUAL TO FROM 30% TO 70% OF THE OVERAL BLEND AND (2) THE BALANCE, THAT IS, NOT MORE THAN, 20%, BY WEIGHT, IF DESIRED, BEING A SUITABLE SOLVENT FOR SAID BLEND. THE COMPOSITION, WHEN APPLIED AS A COATING TO A METAL OR WOOD SUBSTRATE AND HEATED, WILL RENDER THE SURFACE SUBSTANTIALLY FREE FROM PINHOLES, CRAWLING, AND CRATERING.
Inventors
- 👤 W Blank
Bibliographic Details
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