US3925947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile window sealing
Assignee: Novogard Corp
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Filing: 1974-01-25
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Granted: 1975-12-16
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Expires: 1994-01-25
Abstract
Abstract The windows of a motor vehicle are sealed and held in place between a pinch weld and trim strip on the vehicle using a hot melt elastomeric sealing composition which adheres tenaciously to the glass and metal parts without the application of a priming coat or the use of compression members. The hot melt composition consists of an intimate mixture of an elastomeric polymer, tackifying and plasticizing resins, and from about 0.2 to 12% of adhesion promoters together with fillers and other additives.
Inventors
- 👤 Robert M Meyers
- 👤 Edward F Kutch
- 👤 Matthew M Sitter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:54
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/048; B; B60; B60J; B60J10/00; B60J10/70
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
203 words
AN AUTOMOBILE WINDOW ASSEMBLY COMPRISING A PINCH WELD MEMBER SURROUNDING THE OPENING IN WHICH THE WINDOW IS TO BE LOCATED AND PRESENTING AN OUTWARDLY FACING SURFACE, A PANE OF GLASS CLOSING SAID OPENING AND SUPPORTED ABOUT ITS EDGES BY THE OUTWARDLY FACING SURFACE OF SAID PINCH WELD MEMBER, THERE BEING A HOT MELT ELASTOMERIC SEALING COMPOSITION DISPOSED BETWEEN SAID EDGES OF SAID PANE OF GLASS AND THE OUTWARDLY FACING SURFACE OF SAID PINCH WELD MEMBER THROUGHOUT THE ENTIRE PERIPHERY OF THE PANE OF GLASS, SAID SEALANT COMPOSITION BEING CHARACTERIZED BY THE FACT THAT IT IS FLUID AT A TEMPERATURE ABOVE ABOUT 150*F SO THAT UPON CONTACT THEROF WITH THE SURFACE OF THE GLASS AND PINCH WELD MEMBER WHILE AT SUCH TEMPERATURE IT WILL ESTABLISH A FLUID-TYPE CONTACT WITH BOTH GLASS AND PINCH WELD MEMBER, SAID SEALING COMPOSITION CONSISTING ESSENTIALLY OF A NONREACTANT MECHANICAL MIXTURE OF FROM ABOUT 10 TO 200 PARTS BY WEIGHT OF AN ELASTOMERIC POLYMER, FROM ABOUT 1 TO 200 PARTS BY WEIGHT OF TACKIFYING RESINS, FROM ABOUT 10 TO 400 PARTS BY WEIGHT OF PLATICIZER, FROM ABOUT 0.5 TO 60 PARTS BY WEIGHT OF ONE OR MORE ADHESION PROMOTEERS, AND FROM ABOUT 5 TO 500 PARTS BY WEIGHT OF INERT
Claim 2
Dependent Claim
203 words
AN AUTOMOBILE WINDOW ASSEMBLY COMPRISING A PINCH WELD MEMBER SURROUNDING THE OPENING IN WHICH THE WINDOW IS TO BE LOCATED AND PRESENTING AN OUTWARDLY FACING SURFACE, A PANE OF GLASS CLOSING SAID OPENING AND SUPPORTED ABOUT ITS EDGES BY THE OUTWARDLY FACING SURFACE OF SAID PINCH WELD MEMBER, THERE BEING A HOT MELT ELASTOMERIC SEALING COMPOSITION DISPOSED BETWEEN SAID EDGES OF SAID PANE OF GLASS AND THE OUTWARDLY FACING SURFACE OF SAID PINCH WELD MEMBER THROUGHOUT THE ENTIRE PERIPHERY OF THE PANE OF GLASS, SAID SEALANT COMPOSITION BEING CHARACTERIZED BY THE FACT THAT IT IS FLUID AT A TEMPERATURE ABOVE ABOUT 150*F SO THAT UPON CONTACT THEROF WITH THE SURFACE OF THE GLASS AND PINCH WELD MEMBER WHILE AT SUCH TEMPERATURE IT WILL ESTABLISH A FLUID-TYPE CONTACT WITH BOTH GLASS AND PINCH WELD MEMBER, SAID SEALING COMPOSITION CONSISTING ESSENTIALLY OF A NONREACTANT MECHANICAL MIXTURE OF FROM ABOUT 10 TO 200 PARTS BY WEIGHT OF AN ELASTOMERIC POLYMER, FROM ABOUT 1 TO 200 PARTS BY WEIGHT OF TACKIFYING RESINS, FROM ABOUT 10 TO 400 PARTS BY WEIGHT OF PLATICIZER, FROM ABOUT 0.5 TO 60 PARTS BY WEIGHT OF ONE OR MORE ADHESION PROMOTEERS, AND FROM ABOUT 5 TO 500 PARTS BY WEIGHT OF INERT
Claim 3
Dependent Claim
27 words
An assembly as defined in claim 1 wherein said adhesive promoter is selected from the group consisting of a silane composition, an epoxy compound and mixtures thereof.
Claim 4
Dependent Claim
24 words
An assembly as defined in claim 1 wherein said adhesion promoter constitutes from about 0.2 to 12 percent by weight of said sealant composition.
Claim 5
Dependent Claim
37 words
An assembly as defined in claim 1 wherein said sealant composition contains from about 0.2 to 1.5 percent by weight of a silane composition and from about 0.5 to 10 percent by weight of an epoxy compound.
Claim 6
Dependent Claim
21 words
An assembly as defined in claim 4 wherein said epoxide compound has an epoxide equivalent of from about 150 to 3000.
Claim 7
Dependent Claim
23 words
An assembly as defined in claim 1 wherein said tackifying resin constitutes from about 8 to 30 percent by weight of the composition.
Claim 8
Dependent Claim
23 words
An assembly as defined in claim 1 wherein said tackifying resin constitutes from about 10 to 20 percent by weight of the composition.
Claim 9
Dependent Claim
44 words
An assembly as defined in claim 1 wherein the elastomeric polymer in said sealant composition is selected from the group consisting of copolymers of isobutylene and isoprene, polyisobutylene, butadiene-styrene, styrene-butadiene-styrene polymers, styrene-isoprene polymers, chlorinated rubbers, acrylic rubber, urethane polyester rubbers, and solidified polysulfide polymers.
Claim 10
Dependent Claim
34 words
An assembly as defined in claim 1 wherein the said tackifying resins are selected from the group consisting of terpene resins, polyterpene resins, phenolic resins, hydrogenated rosins, hydrocarbon resins, chlorinated polyphenyl and chlorinated biphenyl.
Claim 11
Dependent Claim
39 words
An assembly as defined in claim 1 wherein the said plasticizers are selected from the group consisting of polybutenes, polyisobutylenes, phosphate esters, dibutyl phthalate, paraffin oils, chlorinated paraffins, benzoic acid esters, coal tar asphalt, chlorinated polyphenyl and chlorinated biphenyl.
Claim 12
Dependent Claim
34 words
An assembly as defined in claim 1 wherein said adhesion promoters are selected from the group consisting of liquid and solid epoxy resins, organic silanes, polyurethane resins, ethylene vinyl acetate and liquid phenolic resins.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |