Patent US4348435A successfully refreshed from Google Patents.
US4348435A
Expired / Lapsed
US
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Primed multiple glazed units for curtainwall systems
Assignee: PPG Industries Ohio Inc
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Filing: 1980-03-19
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Granted: 1982-09-07
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Expires: 2000-03-19
Abstract
Abstract An adhesion-promoting primer, e.g., an emulsion polymer, is employed to bond organic elastomers to silicone elastomer adhesives. A multiple glazed unit having an organic elastomer sealant about its periphery is mounted into a curtainwall system by first coating the exposed organic elastomer sealant with a suitable primer before bonding the multiple glazed unit to the curtainwall system with silicone elastomer adhesive.
Inventors
- 👤 George R. Mistrick
- 👤 George H. Bowser
- 👤 Renato J. Mazzoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:16
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66342; E06B3/54; E06B3/5427; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31826; Y10T428/31833; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/31928; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
121 words
A multiple glazed unit having a pair of sheets, means for spacing said sheets from one another to provide a space therebetween, and means for sealing said space, said sealing means including an organic elastomer having an exposed surface which is to be adhered to a structural member through the interposition and curing of a silicone elastomer adhesive, wherein the improvement comprises: a layer of a primer dried on at least said exposed surface of said organic elastomer, the primer selected to improve adhesion between said organic elastomer and said interposed and cured silicone elastomer adhesive, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers.
Claim 2
Dependent Claim
121 words
A multiple glazed unit having a pair of sheets, means for spacing said sheets from one another to provide a space therebetween, and means for sealing said space, said sealing means including an organic elastomer having an exposed surface which is to be adhered to a structural member through the interposition and curing of a silicone elastomer adhesive, wherein the improvement comprises: a layer of a primer dried on at least said exposed surface of said organic elastomer, the primer selected to improve adhesion between said organic elastomer and said interposed and cured silicone elastomer adhesive, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers.
Claim 3
Dependent Claim
47 words
The multiple glazed unit as set forth in claim 1 wherein said spacing means includes a spacer positioned between marginal edge portions of adjacent sheets and spaced from peripheral edge portions to provide a peripheral channel about said unit; and said organic elastomer disposed in said channel.
Claim 4
Dependent Claim
21 words
The multiple glazed unit as set forth in claims 1 or 2 wherein the organic elastomer is hot melt butyl sealant.
Claim 5
Independent Claim
130 words
A method of mounting a multiple glazed unit to a rigid member, said multiple glazed unit having an exposed surface of an organic elastomer, including the step of securing said exposed surface to said rigid member by the interposition and curing of a silicone elastomer adhesive, wherein the improvement comprises the steps of: applying a layer of a primer to at least said exposed surface of said organic elastomer, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers, said primer selected to improve adhesion between said organic elastomer and said interposed and cured silicone elastomer adhesive; drying said layer of primer; and practicing said applying and drying steps prior to practicing said securing step.
Claim 6
Independent Claim
130 words
A method of mounting a multiple glazed unit to a rigid member, said multiple glazed unit having an exposed surface of an organic elastomer, including the step of securing said exposed surface to said rigid member by the interposition and curing of a silicone elastomer adhesive, wherein the improvement comprises the steps of: applying a layer of a primer to at least said exposed surface of said organic elastomer, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers, said primer selected to improve adhesion between said organic elastomer and said interposed and cured silicone elastomer adhesive; drying said layer of primer; and practicing said applying and drying steps prior to practicing said securing step.
Claim 7
Dependent Claim
30 words
The method as set forth in claim 4 wherein the rigid member is an additional multiple glazed unit and the multiple glazed units have peripheral edge portions adjacent one another.
Claim 8
Dependent Claim
20 words
The method as set forth in claim 4 wherein the rigid member is a peripheral edge portion of a fenestration.
Claim 9
Dependent Claim
22 words
The method as set forth in claim 4 wherein the rigid member is a vertical or horizontal member of a curtainwall system.
Claim 10
Dependent Claim
67 words
The method as set forth in claim 4 wherein the multiple glazed unit comprises: a spacer means; at least two sheets spaced from one another by said spacer means positioned between adjacent sheets to provide a space therebetween, and to provide a peripheral channel about the unit; and said organic elastomer in said channel to maintain adjacent sheets about said spacer means, and to seal said space.
Claim 11
Dependent Claim
17 words
The method as set forth in claim 6 wherein the organic elastomer is hot melt butyl sealant.
Claim 12
Independent Claim
121 words
A method of adhering an organic elastomer to a silicone elastomer adhesive wherein the bond between said organic elastomer and said silicone elastomer adhesive fails adhesively when said elastomers are directly adhered together and subjected to a peel test, comprising: applying a primer to the surface of the organic elastomer, said primer selected to cause a cohesive failure between said organic elastomer and said silicone elastomer adhesive when subjected to a peel test, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers; drying said primer; applying an uncured silicone elastomer adhesive to the primed surface of said organic elastomer; and curing the silicone elastomer adhesive.
Claim 13
Independent Claim
121 words
A method of adhering an organic elastomer to a silicone elastomer adhesive wherein the bond between said organic elastomer and said silicone elastomer adhesive fails adhesively when said elastomers are directly adhered together and subjected to a peel test, comprising: applying a primer to the surface of the organic elastomer, said primer selected to cause a cohesive failure between said organic elastomer and said silicone elastomer adhesive when subjected to a peel test, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers; drying said primer; applying an uncured silicone elastomer adhesive to the primed surface of said organic elastomer; and curing the silicone elastomer adhesive.
Claim 14
Dependent Claim
18 words
The method as set forth in claim 10 wherein the organic elastomer is a hot melt butyl sealant.
Claim 15
Dependent Claim
147 words
In a curtainwall glazing system of the type having at least two rigid members; a plurality of multiple glazed units, said units each comprising a pair of sheets, means for spacing said sheets from one another to provide a space therebetween, and means for sealing said space, said sealing means including an organic elastomer having an exposed surface at the periphery of said unit; and a cured silicone elastomer adhesive adhering said units to said rigid members and adhering adjacent peripheral edges of said units together, wherein the improvement comprises: a layer of a primer dried on at least said exposed surface of said organic elastomer, the primer selected to improve adhesion between said organic elastomer and said cured silicone elastomer adhesive, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers.
Claim 16
Dependent Claim
147 words
In a curtainwall glazing system of the type having at least two rigid members; a plurality of multiple glazed units, said units each comprising a pair of sheets, means for spacing said sheets from one another to provide a space therebetween, and means for sealing said space, said sealing means including an organic elastomer having an exposed surface at the periphery of said unit; and a cured silicone elastomer adhesive adhering said units to said rigid members and adhering adjacent peripheral edges of said units together, wherein the improvement comprises: a layer of a primer dried on at least said exposed surface of said organic elastomer, the primer selected to improve adhesion between said organic elastomer and said cured silicone elastomer adhesive, wherein the primer is a material selected from the group consisting of acrylic latex polymers, acrylic emulsion polymers, ethylene copolymers, and hydrocarbon resin emulsion polymers.
Claim 17
Dependent Claim
20 words
The apparatus as set forth in claim 12 wherein said rigid members are the peripheral edge portions of a fenestration.
Claim 18
Dependent Claim
15 words
The apparatus as set forth in claim 12 wherein said rigid members are vertical mullions.
Claim 19
Dependent Claim
15 words
The apparatus as set forth in claim 12 wherein said rigid members are horizontal transoms.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |