Patent ID: 11951689
Assignee: OATEY CO.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C | IPC B

Claim 0:
1. A THF-free primer formulation for use with solvent cements, wherein the primer formulation consists of:
cyclopentanone in an amount of 30 wt % to 50 wt % based on the total weight of the formulation;
40% to 55% acetone based on the total weight of the formulation,
at least one additional organic solvent selected from the group consisting of methyl ethyl ketone, cyclohexanone, N-methyl-2-pyrrolidone, and mixtures thereof;
optionally, one or more fillers or additives; and
optionally, a colorant composition;
wherein the primer formulation is configured to bond components having resin-based surfaces and is capable of dissolving at least 10% of the resin-based surfaces.