Resin compositions

Abstract

Novel thermosetting resin compositions comprise (1) a polyalcohol produced by reduction of a low molecular weight linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (2) a polyfunctional curing agent. The compositions are cured upon application of heat to cured, crosslinked compositions useful as coatings.

What is claimed is: 
     
       1. A thermosetting resin composition consisting essentially of a polyalcohol, obtained by hydrogenating at least about 20% of the carbonyl groups of a low molecular weight linear alternating polymer of carbon monoxide and at least one straight-chain α-olefin of up to 10 carbon atoms inclusive, and a polyfunctional curing agent. 
     
     
       2. The composition of claim 1 wherein the molecular weight of the linear alternating polymer is from about 450 to about 3500. 
     
     
       3. The composition of claim 2 wherein the curing agent is a urea-formaldehyde resin or a phenol-formaldehyde resin. 
     
     
       4. The composition of claim 3 wherein the polymer is of the formula ##STR3## wherein R independently is alkyl of from 2 to 8 carbon atoms inclusive or alkoxy of up to 8 carbon atoms inclusive, R' independently is alkylene of up to 8 carbon atoms inclusive and n is an average number reflecting the molecular weight of the polymer. 
     
     
       5. The composition of claim 4 wherein the curing agent is an alkoxylated reaction product of a formaldehyde-melamine resin. 
     
     
       6. The composition of claim 3 wherein the polymeric chain of the polymer is represented by the formula ##STR4## wherein R' is ethylene or propylene and n is an average number reflecting the molecular weight of the polymer. 
     
     
       7. The composition of claim 6 wherein from about 50% to about 100% of the carbonyl groups of the linear alternating polymer are hydrogenated. 
     
     
       8. The composition of claim 7 wherein the curing agent is an alkoxylated reaction product of a formaldehyde-melamine resin, present in an amount of from about 7% by weight to about 120% by weight, based on polyalcohol. 
     
     
       9. The composition of claim 8 wherein R' is propylene. 
     
     
       10. The composition of claim 9 wherein the curing agent is hexamethoxymethylmelamine. 
     
     
       11. The cured composition produced by heating the composition of claim 1 to a temperature from about 125° C. to about 250° C. 
     
     
       12. The cured composition produced by heating the composition of claim 10 to a temperature from about 125° C. to about 250° C. 
     
     
       13. A coated solid object wherein the coating is the cured composition of claim 11. 
     
     
       14. A coated metal object wherein the coating is the cured composition of claim 12.