Solvent cement formulations
AssigneeOatey Co.
InventorsAmrit Parhar, Willie Perez
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Abstract
Provided are solvent cement formulations comprising some or all of tetrahydrofuran, cyclohexanone, methyl ethyl ketone, acetone, a thermoplastic resin, silica, and, a solvent soluble acrylic copolymer associative thickener. The disclosed formulations contain a reduced complement of volatile organic compounds (VOCs) relative to conventional cement formulations, yet are capable of meeting the requirements for regular-, medium-, and heavy-duty applications. The use of specialized associative thickener components confers a required degree of viscosity while enabling a reduction in the concentration of VOCs, such as tetrahydrofuran.
Claims10
A solvent cement formulation comprising:
- 0-19% tetrahydrofuran;
- 21-49% cyclohexanone;
- 7-21% methyl ethyl ketone;
- 21-36% acetone;
- 8-15% polyvinyl chloride;
- 0.5-5% silica;
- and,
- 0.01-0.4% of a solvent soluble acrylic copolymer associative thickener,
- wherein the percent value of all named components do not exceed 100.
Dependencies are inferred from the claim text.