Compositions including PVC or CPVC
The present disclosure provides a PVC or CPVC solvent cement and a composition for forming a PVC or CPVC coating on an object. The solvent cement and the coating composition each include one or more caprolactam-derived solvents and a polymer selected from the group of polyvinyl chloride and chlorinated polyvinyl chloride. The one or more caprolactam-derived solvents include a linear alkyl group of 1, 2 or 4 unsubstituted carbons or an alkoxymethyl group of 2 or 3 unsubstituted carbons bonded to a nitrogen heteroatom.
1. A solvent cement comprising:
an N-ethylcaprolactam solvent;
one or more co-solvents consisting of acetone, methyl ethyl ketone, cyclohexanone, or combinations thereof; and
a polymer selected from the group of polyvinyl chloride and chlorinated polyvinyl chloride, the polymer in solution with the one N-ethylcaprolactam solvent and the one or more co-solvents.
2. The solvent cement of claim 1 , wherein the polymer consists of polyvinyl chloride.
3. The solvent cement of claim 1 , wherein the polymer consists of chlorinated polyvinyl chloride.
4. The solvent cement of claim 1 , wherein the polymer is 1 wt. % to 30 wt. % of the solvent cement.
5. The solvent cement of claim 1 , wherein a concentration of the N-ethylcaprolactam solvent is 70 wt. %-99 wt. % of the solvent cement.
6. The solvent cement of claim 1 , wherein a concentration of the N-ethylcaprolactam solvent is 5 wt. % to 94 wt. % of the solvent cement and a concentration of the one or more co-solvents is 5 wt. % to 85 wt. % of the solvent cement.
7. A method of producing a solvent cement, the method comprising:
providing a polymer selected from the group consisting of polyvinyl chloride and chlorinated polyvinyl chloride;
providing an N-ethylcaprolactam solvent;
providing one or more co-solvents consisting of acetone, methyl ethyl ketone, cyclohexanone, or any combinations thereof; and
mixing the polymer, the N-ethylcaprolactam solvent, and the one or more co-solvents until the polymer is in solution with the N-ethylcaprolactam solvent and the one or more co-solvents to produce the solvent cement.
8. A composition for forming a polymer coating on an object, the composition comprising:
a polymer selected from the group of polyvinyl chloride and chlorinated polyvinyl chloride;
an N-ethylcaprolactam solvent; and
one or more co-solvents consisting of acetone, methyl ethyl ketone, cyclohexanone, or any combination thereof, wherein a portion of the polymer is suspended in the composition.
9. The composition of claim 8 , wherein the polymer is 25 wt. % to 45 wt. % of the composition.