Solvent cement
OwnerLloyd H. King, Sr.inventor
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Abstract
The present invention describes novel solvent cements which are a combination of a solvent which is a 5- or 6-membered ring lactam and a cosolvent which is one or more lower alkanols and/or one or more lower alkyl esters of lower alkanoic acids and, optionally, includes a water-insoluble polymer such as PVC or ABS.
Claims1
A solvent cement for joining insoluble water polymers wherein the solvent cement exceeds the standard specified in ASTM Bulletin D-2564-80, consisting of a solution of a solvent of ethyl acetate and N-methyl-2-pyrrolidone and wherein the ethyl acetate ranges from a minimum of approximately 3% to a maximum of about 90%, with the balance N-methyl-2-pyrrolidone.
Dependencies are inferred from the claim text.