Low VOC (volatile organic compounds), solvent-based ABS adhesives
AssigneeIPS Corporation
InventorsNaresh D. Patel, Mark W. Brown
Life of this patent
Estimating the term…
Abstract
An ABS adhesive for joining ABS articles, such as pipes, comprises: (a) about 10 to 35 wt % ABS resin; and (b) about 40 to 60 wt % dibasic esters and, optionally, at least one solvent selected from the group consisting of 0 to about 30 wt % methyl ethyl ketone and 0 to about 10 wt % acetone. The VOC level of the ABS adhesive composition of the invention is at or below the allowed maximum value of 350 g/1. The lap shear strength ranges from about 400 to 700 psi, which is deemed adequate for most non-pressure applications, such as drain, waste, and vent uses, and pool and spa applications.
Claims10
An acrylonitrile-butadiene-styrene terpolymer (ABS) adhesive for joining ABS articles consisting essentially of:
- (a) about 10 to 35 wt % ABS resin;
- (b) about 40 to 90 wt % of a mixture of at least two refined dimethyl esters selected from the group consisting of adipic, glutaric, and succinic acids and, optionally, at least one solvent selected from the group consisting of 0 to about 30 wt % methyl ethyl ketone and 0 to about 10 wt % acetone, with the proviso that said solvent does not exceed about 30 wt % of said adhesive;
- and
- (c) up to about 10 wt % of at least one component selected from the group consisting of pigments, fillers, thixotropic agents, and stabilizers, said adhesive having a volatile organic compound concentration not exceeding 350 g/l.
A method for reducing volatile organic compound emissions from acrylonitrile-butadiene-styrene terpolymer (ABS) adhesives for joining ABS articles, wherein said adhesive is formulated by combining
- (a) about 10 to about 35 wt % ABS resin;
- (b) about 40 to 90 wt % of a mixture of at least two refined dimethyl esters selected from the group consisting of adipic, glutaric, and succinic acids and, optionally, at least one solvent selected from the group consisting of 0 to about 30 wt % methyl ethyl ketone and 0 to about 10 wt % acetone, with the proviso that said solvent does not exceed about 30 wt % of said adhesive;
- and
- (c) up to about 10 wt % of at least one component selected from the group consisting of pigments, fillers, thixotropic agents, and stabilizers, said adhesive having a volatile organic compound concentration not exceeding 350 g/l.
Dependencies are inferred from the claim text.