Polymerizable compositions in non-flowable forms
View Patent ↗The present invention relates to adhesive and sealant compositions in non-flowable form. More particularly, the present invention relates to non-flowable adhesive and sealant compositions which are particularly useful in the threadlocking and sealing applications and which can be packaged in a convenient pocket-sized applicator dispenser.
1. An adhesive composition in non-flowable form at room temperature comprising:
a. at least one polymerizable monomer, and
b. about 2.5 to about 20% by weight of the total composition of a polymeric matrix selected from the group consisting of polyamides, polyacrylamides, polyimides, polyhydroxyalkylacrylates, urea-urethanes, hydroxy or amine-modified aliphatic hydrocarbons, polyester-amide-based rheological additives and combinations thereof, wherein the adhesive composition is dispensable at room temperature and wherein the polymerizable monomer is a member selected from the group consisting of anaerobics, epoxies, acrylics, polyurethanes, compositions of olefinically-functionalized compounds, silicones and combinations thereof.
2. The composition of claim 1 , wherein said hydroxy or amine modified aliphatic hydrocarbons include hydroxyl or amine modified glycerides of 12-hydroxystearic acid.
3. The composition of claim 1 , wherein said polyester-amide-based rheological additives include compositions that are a reaction product of polycarboxylic acid, polyamine, alkoxylated polyols and a monocarboxylic acid having aliphatic unsaturation.
4. The composition of claim 1 , further including a polymerization initiator.
5. The composition of claim 4 , wherein said polymerization initiator is a peroxy compound.
6. The composition of claim 1 , further including a material selected from the group consisting of polymerization inhibitors, free radical scavengers, chelators, fillers, viscosity modifiers, lubricity agents, coloring agents, fluorescent agents, catalysts and combinations thereof.
7. The composition of claim 1 , wherein the polymeric matrix is present in amounts of about 5% to about 15% by weight of the composition.
8. The composition of claim 1 , wherein the polymeric matrix is present in amounts of about 7% to about 10% by weight of the composition.
9. The composition of claim 1 , further including a curing agent or curing system for said polymerizable compounds.
10. The composition of claim 9 , wherein said curing agent or curing system is contained in a rupturable encapsulate.
11. The composition of claim 1 , wherein said curing agent or curing system includes a photoinitiator and further wherein said composition is curable by ultraviolet radiation.
12. The composition of claim 1 , further including a polymerization catalyst.
13. The composition of claim 1 , wherein said polymerizable compound and said polymeric matrix are in one part and said activator is in a second part.
14. The composition of claim 1 , further including fumed silica.
15. The composition of claim 1 , further including treated fumed silica.
16. An article of manufacture comprising:
a. a dispensing container for housing and dispensing a non-flowable adhesive or sealant composition, said container comprising a generally elongate hollow body having first and second ends, with one of said ends defining a dispense opening;
b. an adhesive or sealant composition within said container, said composition comprising:
(i) at least one flowable polymerizable compound; and
(ii) about 2.5 to about 20% by weight of the total composition of a polymeric matrix selected from the group consisting of polyamides, polyacrylamides, polyimides, polyhydroxyalkylacrylates, urea-urethanes, hydroxy or amine-modified aliphatic hydrocarbons, polyester-amide-based rheological additives and combinations thereof, and present in an amount sufficient to render said composition non-flowable at temperatures up to about 180° F. (82° C.) and wherein said composition is dispensable at room temperature without application of heat.
17. The composition of claim 16 , wherein said composition remains non-flowable at temperatures of about 160° F. (71° C.).
18. An adhesive composition in non-flowable form at room temperature comprising:
b. at least one polymerizable monomer, and
b. about 2.5 to about 20% by weight of the total composition a polymeric matrix selected from the group consisting of polyamides, polyacrylamides, polyimides, polyhydroxyalkylacrylates, urea-urethanes, hydroxy or amine-modified aliphatic hydrocarbons, polyester-amide-based rheological additives and combinations thereof, wherein the adhesive composition remains non-flowable at temperature of about 160° F. (71° C.), yet is dispensable at room temperature.