Liquid rubber compositions are particularly formulated for use in repair or modification of various household items, hand tools, garden tools, cooking or eating utensils, sports equipment, motor vehicles, appliances, etc. The compositions may be applied by brushing, dipping, or coating. Once cured,
Liquid rubber compositions are particularly formulated for use in repair or modification of various household items, hand tools, garden tools, cooking or eating utensils, sports equipment, motor vehicles, appliances, etc. The compositions may be applied by brushing, dipping, or coating. Once cured, the composition forms a durable, breathable, weatherproof barrier that is resistant to rain, snow, sun, wind, air moisture, UV degradation, and natural weathering over a wide temperature range. The composition contains a polyether having silane terminal groups, a mineral filler, a fluid carrier, a crosslinker, fumed silica and a catalyst in specific amounts. It can also contain a colorant.
대표청구항▼
1. A clear liquid rubber composition comprising: about 58 wt. % polyether-based silane-terminated polymer;about 29 wt. % mineral filler;about 7 wt. % fluid carrier;about 3.8 wt. % crosslinker;about 2 wt. % amorphous fumed silica; andabout 0.2 wt. % catalyst. 2. The liquid rubber composition of claim
1. A clear liquid rubber composition comprising: about 58 wt. % polyether-based silane-terminated polymer;about 29 wt. % mineral filler;about 7 wt. % fluid carrier;about 3.8 wt. % crosslinker;about 2 wt. % amorphous fumed silica; andabout 0.2 wt. % catalyst. 2. The liquid rubber composition of claim 1, wherein the mineral filler is nepheline syenite. 3. The liquid rubber composition of claim 1, wherein the fluid carrier is octamethylcyclotetrasiloxane. 4. The liquid rubber composition of claim 1, wherein the crosslinker comprises about 3.3 wt. % of 2-butanone,O,O′,O″-(methylsilylidyne)trioxime and about 0.5 wt. % of 2-butanone, O,O′,O″-silanetetrayltetraoxime. 5. The liquid rubber composition of claim 1, wherein the catalyst is 3-aminopropyl-triethoxysilane. 6. The liquid rubber composition of claim 1 which has a viscosity ranging from about 150 ku to about 155 ku. 7. The liquid rubber composition of claim 1 which has a specific gravity of about 1.26. 8. A colored liquid rubber composition comprising: about 55 wt. % polyether-based silane-terminated polymer;about 23-24 wt. % mineral filler;about 8-9 wt. % colorant;about 7 wt. % fluid carrier;about 3.8 wt. % crosslinker;about 2 wt. % amorphous fumed silica; andabout 0.2 wt. % catalyst. 9. The liquid rubber composition of claim 8, wherein the mineral filler is nepheline syenite. 10. The liquid rubber composition of claim 8, wherein the fluid carrier is octamethylcyclotetrasiloxane. 11. The liquid rubber composition of claim 8, wherein the crosslinker comprises about 3.3 wt. % of 2-butanone,O,O′,O″-(methylsilylidyne)trioxime and about 0.5 wt. % of 2-butanone, O,O′,O″-silanetetrayltetraoxime. 12. The liquid rubber composition of claim 8, wherein the catalyst is 3-aminopropyl-triethoxysilane. 13. The liquid rubber composition of claim 8, wherein the colorant comprises about 9 wt. % titanium dioxide. 14. The liquid rubber composition of claim 8, wherein the colorant comprises about 8 wt. % carbon black. 15. The liquid rubber composition of claim 8, wherein the colorant comprises about 7 wt. % titanium dioxide and about 2 wt. % carbon black. 16. The liquid rubber composition of claim 8 which has a viscosity ranging from about 150 ku to about 155 ku. 17. The liquid rubber composition of claim 8 which has a specific gravity of about 1.24.
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