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An insulating glass unit including a first pane of glass, a second pane of glass, and a spacer system. The spacer system includes (i) a spacer positioned between an inner surface of the first pane of glass and an inner surface of the second pane of glass and (ii) a sealant system for adhering the inner surfaces of the glass panes to the spacer. The sealant system includes at least one sealant having (a) at least one thermoplastic hot-melt material having a melt temperature ranging from about 125° F. (51° C.) to about 250° F. (121° C.)...
An insulating glass unit including a first pane of glass, a second pane of glass, and a spacer system. The spacer system includes (i) a spacer positioned between an inner surface of the first pane of glass and an inner surface of the second pane of glass and (ii) a sealant system for adhering the inner surfaces of the glass panes to the spacer. The sealant system includes at least one sealant having (a) at least one thermoplastic hot-melt material having a melt temperature ranging from about 125° F. (51° C.) to about 250° F. (121° C.), and (b) at least one curable material. The sealant, when cured, forms a covalent bond between the spacer and the panes. The sealant has an initial hardness ranging from about 25 Shore A to about 450 Shore A and a post-cure hardness measured about 48 hours thereafter ranging from about 30 Shore A to about 50 Shore A.
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1. An insulating glass unit, comprising:a first pane having an inner surface and an outer surface;a second pane having an inner surface and an outer surface, said panes positioned such that said inner surface of said first pane faces said inner surface of said second pane;a spacer located between said first and second panes; anda sealant system adhering said panes to said spacer, comprising:(a) a primary sealant comprising:a thermoplastic resin component; anda curable resin component; and(b) a secondary sealant located adjacent said primary sealant,where...
1. An insulating glass unit, comprising:a first pane having an inner surface and an outer surface;a second pane having an inner surface and an outer surface, said panes positioned such that said inner surface of said first pane faces said inner surface of said second pane;a spacer located between said first and second panes; anda sealant system adhering said panes to said spacer, comprising:(a) a primary sealant comprising:a thermoplastic resin component; anda curable resin component; and(b) a secondary sealant located adjacent said primary sealant,wherein said primary sealant, upon curing, has a moisture vapor transmission rate of less than 10 g/m 2 /day, a hardness after curing ranging from 30 Shore A to 65 Shore A, and a cured modulus value ranging from 35 psi to 100 psi, wherein said cured modulus value of said primary sealant is less than the cured modulus value of said secondary sealant. 2. The insulating glass unit as claimed in claim 1, wherein said primary sealant, upon curing, has said moisture vapor transmission rate of less than 2 g/m 2 /day. 3. The insulating glass unit as claimed in claim 1, wherein said thermoplastic resin component comprises 10% to 90% by weight of said primary sealant. 4. The insulating glass unit as claimed in claim 1, wherein said thermoplastic resin component comprises at least one material selected from polyolefins, polyvinyl acetates, polyamides, hydrocarbons, asphalts, bitumens, waxes, paraffins, crude rubbers, fluorinated rubbers, polyvinyl chlorides, polyamides, fluorocarbons, polystyrenes, cellulosic resins, acrylics, thermoplastic elastomers, styrene butadiene polymers, polyterpenes, ethylene-propylene terpolymers, and mixtures thereof. 5. The insulating glass unit as claimed in claim 1, wherein said thermoplastic resin component comprises a material selected from solid chlorinated paraffin, polyisobutylene, epoxidized soya oil, ethylene butylacrylate, polyolefin, and mixtures thereof. 6. The insulating glass unit as claimed in claim 1, wherein said thermoplastic resin component comprises a mixture of an epoxide material, an acrylate material, and a polyolefin material. 7. The insulating glass unit as claimed in claim 6, wherein said thermoplastic resin component comprises a mixture of epoxidized soya plasticizer, ethylene butylacrylate, and amorphous polyolefin. 8. The insulating glass unit as claimed in claim 1, wherein said curable resin component comprises 5% to 50% by weight of said primary sealant. 9. The insulating glass unit as claimed in claim 1, wherein said curable resin component polymerizes upon exposure to a constituent of the atmosphere. 10. The insulating glass unit as claimed in claim 9, wherein said constituent comprises a material selected from oxygen, water vapor, and mixtures thereof. 11. The insulating glass unit as claimed in claim 1, wherein said curable resin component comprises a material selected from UV curable resin components, IR curable resin components, moisture curable resin components, oxygen curable resin components, temperature curable resin components, and mixtures thereof. 12. The insulating glass unit as claimed in claim 1, wherein said curable resin component comprises a material selected from alkoxy silane terminated polyurethanes, alkoxy silane terminated polyethers, polydimethylsiloxane resins, organo functional silanes, and mixtures thereof. 13. The insulating glass unit as claimed in claim 1, wherein said thermoplastic resin component and said curable resin component are the same. 14. The insulating glass unit as claimed in claim 13, wherein said thermoplastic resin component and said curable resin component each comprise a material selected from high molecular weight silicon-containing urethane prepolymers and silicon-containing acrylonitrile butadiene copolymers. 15. The insulating glass unit as claimed in claim 1, further comprising an additive selected from plasticizers, fillers, pigments, catalysts, accelerants, weatherability impr overs, and mixtures thereof. 16. The insulating glass unit as claimed in claim 1, wherein said secondary sealant is a thermosetable sealant. 17. The insulating glass unit as claimed in claim 1, wherein said secondary sealant is selected from silicone, polysulfide, and polyurethane sealants. 18. The insulating glass unit as claimed in claim 1, wherein said primary sealant further comprises a tackifier. 19. The insulating glass unit as claimed in claim 18, wherein said tackifier is selected from wood rosin esters, hydrocarbon resins, terpene phenolic resins, alpha methyl styrene resins, and mixtures thereof. 20. The insulating glass unit as claimed in claim 1, wherein said primary sealant further comprises an accelerator. 21. The insulating glass unit as claimed in claim 20, wherein said accelerator comprises a blocked amine material.