Ambient applied desiccant matrix composition
View Patent ↗A desiccating matrix composition that includes hydrogen-bonding polymer, plasticizer, organic-modified clay, adsorbent and optionally metal stearate.
1. A desiccating matrix composition comprising:
hydroxy-functional polybutadiene;
plasticizer;
metal stearate;
organic-modified clay; and
from 20% by weight to 80% by weight adsorbent.
2. The desiccating matrix composition of claim 1 , wherein said composition exhibits a flow rate of from about 80 seconds to about 300 seconds when determined according to the Flow Rate Test Method.
3. The composition of claim 1 , comprising
from about 5% by weight to about 40% by weight said hydroxy-functional polybutadiene;
from about 5% by weight to about 30% by weight said plasticizer; and
from about 0.1% by weight to 3% by weight said metal stearate.
4. The composition of claim 1 , comprising from about 0.1% by weight to about 3% by weight said clay.
5. The composition of claim 1 , wherein said composition exhibits no greater than 1 centimeter of liquid migration at room temperature.
6. The composition of claim 1 , wherein said composition is free of visible liquid migration.
7. The composition of claim 1 , wherein said composition exhibits no greater than 0.25 inch of slump.
8. The composition of claim 1 , wherein said composition exhibits no greater than 0.1 inch of slump.
9. The composition of claim 1 , wherein said metal stearate is selected from the group consisting of lithium stearate, calcium stearate, zinc stearate, and combinations thereof.
10. The composition of claim 1 , wherein said metal stearate comprises aluminum stearate.
11. The composition of claim 1 , wherein said plasticizer comprises phthalate ester.
12. The composition of claim 1 , wherein said plasticizer comprises trimellitate plasticizer.
13. The composition of claim 1 , wherein said organic-modified clay comprises hydroxyl groups.
14. The composition of claim 1 , further comprising calcium carbonate, pigment, antioxidant, ultraviolet light stabilizer, or a combination thereof.
15. The composition of claim 1 , wherein said adsorbent particles are capable of adsorbing moisture, volatile organic compounds or a combination thereof.
16. An insulating glass assembly comprising:
a spacing structure;
a first pane of glass bonded to a first surface of said spacing structure;
a second pane of glass bonded to said spacing structure; and
the desiccant composition of claim 1 disposed on said spacing structure.
17. The insulating glass assembly of claim 16 , wherein said insulating glass assembly is free of visible fog when tested according to ASTM E1887-97.
18. The insulating glass assembly of claim 16 , wherein said insulating glass assembly passes the Class C performance requirements of ASTM E774/773.
19. The insulating glass assembly of claim 16 , wherein said insulating glass assembly passes the Class CB performanance requirements of ASTM E774/773.
20. The insulating glass assembly of claim 16 , wherein said insulating glass assembly passes the Class CBA performance requirements of ASTM E774/773.
21. A method of applying a desiccant matrix composition, said method comprising contacting a spacing structure with the desiccant matrix composition of claim 1 at a temperature from about 15° C. to about 35° C.