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US 7,851,522 B2Granted
Adhesive
Assignee3M Innovative Properties Company
InventorsCordell M. Hardy, Mark E. Fagan, Scott D. Pearson, Kurt C. Melancon, Matthew T. Scholz
Life of this patent
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Abstract
An aqueous adhesive composition includes a polymer adhesive material having a pH of less than 7, a cationic thickener or an anionic thickener formed from at least one anionic monomer having a pKa of less than 3, and water. The adhesive composition has a stringing length of 9 cm or less and a sag distance of 10 mm or less.
Claims27
An aqueous adhesive composition comprising:
- 20 to 75 wt % vinyl acetate polymer adhesive material, wherein the polymer adhesive material has a pH of less than 7;
- an acid swellable cationic thickener comprising at least one monomer unit selected from the group consisting of methacryloyloxyalkyl trialkyl ammonium salt, acryloyloxyalkyl trialkyl ammonium salt, and quaternized dialkylaminoalkylacrylamidine salt;
- and
- water;
- wherein, the aqueous adhesive composition has a stringing length of 9 cm or less, and a sag distance of 10 mm or less and an adhesive set time of 0 to 180 seconds.
2 more elements
An aqueous adhesive composition comprising:
- 50 to 75 wt % vinyl acetate polymer adhesive material, wherein the polymer adhesive material has a pH of less than 7;
- an acid swellable crosslinked cationic thickener comprising at least one monomer unit selected from the group consisting of methacryloyloxyalkyl trialkyl ammonium salt, acryloyloxyalkyl trialkyl ammonium salt, and quaternized dialkylaminoalkylacrylamidine salt;
- and
- water;
- wherein the adhesive composition has a phase lag of 30 degrees or less and an adhesive set time of 0 to 180 seconds.
2 more elements
An aqueous adhesive composition comprising:
- 20 to 75 wt % vinyl acetate polymer adhesive material, wherein the polymer adhesive material has a pH of less than 7;
- an acid swellable crosslinked cationic thickener comprising at least one monomer unit selected from the group consisting of methacryloyloxyalkyl trialkyl ammonium salt, acryloyloxyalkyl trialkyl ammonium salt, and quaternized dialkylaminoalkylacrylamidine salt;
- and
- water;
- wherein the adhesive composition has a phase lag of 45 degrees or less and a sag distance of 10 mm or less and an adhesive set time of 0 to 180 seconds.
2 more elements
An article comprising:
- a dispenser container having a dispensing opening;
- and
- an aqueous adhesive composition disposed within the dispenser container, the aqueous adhesive composition comprising:
- 20 to 75 wt % vinyl acetate polymer adhesive material, wherein the polymer adhesive material has a pH of less than 7;
- an acid swellable crosslinked cationic thickener comprising at least one monomer unit selected from the group consisting of methacryloyloxyalkyl trialkyl ammonium salt, acryloyloxyalkyl trialkyl ammonium salt, and quaternized dialkylaminoalkylacrylamidine salt;
- and
- water;
- wherein, the aqueous adhesive composition has a phase lag of 30 degrees or less and an adhesive set time of 0 to 180 seconds.
5 more elements
Dependencies are inferred from the claim text.