US3852149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating glass window assemblies
Assignee: Novogard Corp
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Filing: 1972-04-19
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Granted: 1974-12-03
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Expires: 1992-04-19
Abstract
Abstract Sealed insulating glass window assemblies are produced by arranging sheets of glass with spacers therebetween so as to present an outwardly facing channel about the edges of the assembly and a hot melt sealant characterized by very low moisture vapor transmission is introduced into the channel at an elevated temperature and in a fluid condition to establish an intimate sealing bond between the glass and spacer means. The sealant used is an intimate mixture of an elastomeric polymer, plasticizing and tackifying resins and, in some cases, an adhesion promoter. The sealant is fluid at temperatures above about 200*F and is applied to preassembled glass sheets and spacer members in that condition but upon cooling attains a hardness of about 10 to 80 on the Shore A Durometer scale.
Inventors
- 👤 E Kutch
- 👤 M Sitter
- 👤 R Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66342
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
209 words
A WINDOW ASSEMBLY COMPRISING A PLURALITY OF PANES OF GLASS, SPACING MEANS LOCATED BETWEEN SAID PANES OF GLASS ADJACENT THE EDGES THEREOF AND SERVING TO HOLD SAID PANES IN PREDETERMINED SPACED RELATION, SAID SPACING MEANS AND GLASS PANES COOPERATING TO PRESENT AN OUTWARDLY FACING CHANNEL EXTENDING ABOUT THE PERIPHERY OF THE ASSEMBLY, AND A HOT MELT SEALANT COMPOSITION IN CONTINUOUS FLUID CONTACT WITH SAID GLASS AND SPACING MEANS, SAID SEALANT BEING OF THE TYPE WHICH IS FFLUID AT TEMPERATURES ABOVE ABOUT 200*F BUT HARDENS UPON COOLING WITHOUT UNDERGOING CHEMICAL REACTION AND HAS A HARDNESS AT ROOM TEMPERATURE OF ABOUT 10 TO 80 ON A SHORE A DUROMETER, SAID SEALANT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 20 TO 100 PARTS BY WEIGHT OF AN ELASTOMERIC POLYMER HAVING A MOLECULAR WEIGHT NOT LESS THAN ABOUT 15,000 AND SELECTED FROM THE GROUP CONSISTING IOF COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, POLYISOBUTYLENE, STYRENE-BUTADIENE POLYMERS, STYRENE-ISOPRENE POLYMERS, CHLORINATED RUBBER AND SOLID POLYSULFIDE POLYMERS; FROM 15 TO 150 PARTS BY WEIGHT OF PLASTICIZING AND TACKIFYING RESINS; FROM 0 TO ABOUT 44 PARTS BY WEIGHT OF ADHESION PROMOTERS, AND FROM ABOUT 0 TO ABOUT 150 PARTS BY WEIGHT OF FILLERS AND PIGMENTS; SAID COMPOSITION HAVING A MOISTURE TRANSMISSSION NOT EXCEEDING 8 AS DETERMINED BY ASTM-E9663T PROCEDURE B.
Claim 2
Dependent Claim
209 words
A WINDOW ASSEMBLY COMPRISING A PLURALITY OF PANES OF GLASS, SPACING MEANS LOCATED BETWEEN SAID PANES OF GLASS ADJACENT THE EDGES THEREOF AND SERVING TO HOLD SAID PANES IN PREDETERMINED SPACED RELATION, SAID SPACING MEANS AND GLASS PANES COOPERATING TO PRESENT AN OUTWARDLY FACING CHANNEL EXTENDING ABOUT THE PERIPHERY OF THE ASSEMBLY, AND A HOT MELT SEALANT COMPOSITION IN CONTINUOUS FLUID CONTACT WITH SAID GLASS AND SPACING MEANS, SAID SEALANT BEING OF THE TYPE WHICH IS FFLUID AT TEMPERATURES ABOVE ABOUT 200*F BUT HARDENS UPON COOLING WITHOUT UNDERGOING CHEMICAL REACTION AND HAS A HARDNESS AT ROOM TEMPERATURE OF ABOUT 10 TO 80 ON A SHORE A DUROMETER, SAID SEALANT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 20 TO 100 PARTS BY WEIGHT OF AN ELASTOMERIC POLYMER HAVING A MOLECULAR WEIGHT NOT LESS THAN ABOUT 15,000 AND SELECTED FROM THE GROUP CONSISTING IOF COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, POLYISOBUTYLENE, STYRENE-BUTADIENE POLYMERS, STYRENE-ISOPRENE POLYMERS, CHLORINATED RUBBER AND SOLID POLYSULFIDE POLYMERS; FROM 15 TO 150 PARTS BY WEIGHT OF PLASTICIZING AND TACKIFYING RESINS; FROM 0 TO ABOUT 44 PARTS BY WEIGHT OF ADHESION PROMOTERS, AND FROM ABOUT 0 TO ABOUT 150 PARTS BY WEIGHT OF FILLERS AND PIGMENTS; SAID COMPOSITION HAVING A MOISTURE TRANSMISSSION NOT EXCEEDING 8 AS DETERMINED BY ASTM-E9663T PROCEDURE B.
Claim 3
Dependent Claim
19 words
A window assembly as defined in claim 1 wherein said elastomeric polymer is a copolymer of isobutylene and isoprene.
Claim 4
Dependent Claim
17 words
A window assembly as defined in claim 1 wherein said elastomeric polymer is a solid polysulfide rubber.
Claim 5
Dependent Claim
35 words
A window assembly as defined in claim 1 wherein said plasticizing and tackifying resins are selected from the group consisting of terpene, polyterpene, polybutene, chlorinated polyphenyl, chlorinated biphenyl resins, polyisobutylenes, hydrocarbon resins, and parafin oils.
Claim 6
Dependent Claim
16 words
A window assembly as defined in claim 1 wherein said plasticizing and tackifying resin is polyterpene.
Claim 7
Dependent Claim
14 words
A window assembly as defined in claim 1 wherein said tackifying resin is polybutene.
Claim 8
Dependent Claim
26 words
A window assembly as defined in claim 1 wherein said adhesion promoter is selected from the group consisting of epoxy resins, organic silanes and mixtures thereof.
Claim 9
Dependent Claim
22 words
A window assembly as defined in claim 7 wherein said epoxy resin has an epoxide equivalent of from about 150 to 3000.
Claim 10
Dependent Claim
20 words
A window assembly as defined in claim 1 wherein said sealant has substantially the following composition in parts by weight:
Claim 11
Dependent Claim
20 words
A window assembly as defined in claim 1 wherein said sealant has substantially the following compositions in parts by weight:
Claim 12
Dependent Claim
20 words
A window assembly as defined in claim 1 wherein said sealant has substantially the following composition in parts by weight:
Claim 13
Dependent Claim
20 words
A window assembly as defined in claim 1 wherein said sealant has substantially the following compositions in parts by weight:
Claim 14
Dependent Claim
100 words
The method of producing an insulating glass window assembly which comprises arranging sheets of glass in spaced parallel relation with spacing members between said sheets and spaced inwardly from the marginal edges of said sheets so as to present an outwardly facing channel about the assembly, heating a hot melt sealant material having the composition as defined in claim 1 to render the sealant relatively fluid, introducing said sealant into said channel and into contact with said glass sheets and spacing members while in a heated and fluid condition and thereafter allowing the sealant to cool and harden in place.
Claim 15
Dependent Claim
34 words
The method as defined in claim 13 wherein said sealant is an intimate mixture of an elastomeric polymer with plasticizing and tackifying resins and is relatively fluid at temperatures between about 200* and 400*F.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |