US5122403A — Windshield edge seal

Claim 1

Independent Claim 114 words

In a laminated vehicular transparency of the type having a pair of glass plies laminated together, a conductive coating between the plies with portion of the coating extending to a peripheral edge of the transparency, and external conductive means providing external electrical access to the coating, the improvement comprising: a weather resistant sealant completely around the peripheral edge of the transparency to seal the edge of the glass plies to protect the coating against degradation caused by exposure to the environment, said sealant is non-reactive with the coating, the plies and materials between the plies and is selected from a group consisting of a polybutene copolymer based coating composition and a butyl based composition.

Claim 2

Dependent Claim 114 words

In a laminated vehicular transparency of the type having a pair of glass plies laminated together, a conductive coating between the plies with portion of the coating extending to a peripheral edge of the transparency, and external conductive means providing external electrical access to the coating, the improvement comprising: a weather resistant sealant completely around the peripheral edge of the transparency to seal the edge of the glass plies to protect the coating against degradation caused by exposure to the environment, said sealant is non-reactive with the coating, the plies and materials between the plies and is selected from a group consisting of a polybutene copolymer based coating composition and a butyl based composition.

Claim 3

Dependent Claim 87 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant is a weather resistant, non-reactive material selected from a group consisting of a polyvinylidene flouride based coating composition and a butane octane based coating composition to protect the coating against degradation caused by exposure to the environment.

Claim 4

Dependent Claim 87 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant is a weather resistant, non-reactive material selected from a group consisting of a polyvinylidene flouride based coating composition and a butane octane based coating composition to protect the coating against degradation caused by exposure to the environment.

Claim 5

Dependent Claim 17 words

The assembly as in claim 2 wherein said plies are glass plies with said coating positioned therebetween.

Claim 6

Dependent Claim 13 words

The assembly as in claim 2 wherein said coating is an electroconductive coating.

Claim 7

Dependent Claim 25 words

The assembly as in claim 3 wherein said coating is disposed between first and second interlayer plies positioned between said first and second glass plies.

Claim 8

Dependent Claim 24 words

The assembly as in claim 3 further including means to direct an electric current through said coating to heat said coating and said assembly.

Claim 9

Dependent Claim 13 words

The assembly as in claim 6 wherein said sealant is a non-electroconductive material.

Claim 10

Dependent Claim 26 words

The assembly as in claim 7 wherein said directing means includes first and second bus bars positioned along opposite sides of and interconnected by said coating.

Claim 11

Dependent Claim 23 words

The assembly as in claim 8 wherein said coating and said bus bars are on a major surface of said first glass ply.

Claim 12

Dependent Claim 25 words

The assembly as in claim 8 wherein said coating is disposed between first and second interlayer plies positioned between said first and second glass plies.

Claim 13

Dependent Claim 17 words

The assembly as in claim 2 wherein said sealant material is a polyvinylidene fluoride based coating composition.

Claim 14

Dependent Claim 20 words

The assembly as in claim 2 wherein the coating composition comprises a, a thermoplastic acrylic resin and an epoxy silane.

Claim 15

Dependent Claim 78 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant comprises an isotatic thermoplastic polyolefin, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin to protect the coating against degradation caused by exposure to the environment.

Claim 16

Dependent Claim 78 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant comprises an isotatic thermoplastic polyolefin, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin to protect the coating against degradation caused by exposure to the environment.

Claim 17

Dependent Claim 76 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant comprises an isobutylene based elastomer, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin to protect the coating against degradation caused by the environment.

Claim 18

Dependent Claim 76 words

A laminated assembly comprising: first and second plies; a coating positioned between the plies with portions of the coating extending to a peripheral edge of the assembly; and a sealant on selected portions of the peripheral edge to isolate the coating at the edge from the environment, wherein the sealant comprises an isobutylene based elastomer, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin to protect the coating against degradation caused by the environment.

Claim 19

Dependent Claim 101 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing said plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive sealant selected from a group consisting of a polyvinylidene flouride based coating composition and a butane octane based coating composition to the exposed edge of the coating to prevent degradation of the coating caused by exposure to the environment.

Claim 20

Dependent Claim 101 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing said plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive sealant selected from a group consisting of a polyvinylidene flouride based coating composition and a butane octane based coating composition to the exposed edge of the coating to prevent degradation of the coating caused by exposure to the environment.

Claim 21

Dependent Claim 39 words

The method as in claim 15 wherein said sealant applying step includes applying said sealant to said exposed coating edge and to a marginal edge portion of said coating adjacent said exposed coating edge, prior to said securing step.

Claim 22

Dependent Claim 31 words

The method as in claim 15 wherein said plies are glass plies and said sealant applying step includes applying said sealant to a marginal portion of one of said glass plies.

Claim 23

Dependent Claim 96 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing said plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive, isotatic thermoplastic polyolefin, a high molecular weight polyisobutylene resin and a saturated hydrocarbon resin sealant to the exposed edge of the coating to prevent degradation of the coating caused by exposure to the environment.

Claim 24

Dependent Claim 96 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing said plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive, isotatic thermoplastic polyolefin, a high molecular weight polyisobutylene resin and a saturated hydrocarbon resin sealant to the exposed edge of the coating to prevent degradation of the coating caused by exposure to the environment.

Claim 25

Dependent Claim 46 words

The method as in claim 18 wherein said sealant applying step includes applying the sealant to the exposed coating edge and to a marginal edge portion of the coating adjacent the exposed coating edge, and said sealant applying step is practiced prior to said securing step.

Claim 26

Dependent Claim 31 words

The method as in claim 18 wherein the plies are glass plies and said sealant applying step includes applying the sealant to a marginal portion of one of the glass plies.

Claim 27

Dependent Claim 96 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing the plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive isobutylene based elastomer, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin sealant to the exposed edge of said coating to prevent degradation of the coating caused by exposure to the environment.

Claim 28

Dependent Claim 96 words

In a method of fabricating a coated laminate including the steps of applying a coating between a pair of opposing plies and securing the plies to each other such that the coating is positioned therebetween, wherein portions of the coating extend to the peripheral edge of the laminate and are exposed to the environment, the improvement comprising: applying a weather resistant, non-reactive isobutylene based elastomer, a high molecular weight polyisobutylene resin, and a saturated hydrocarbon resin sealant to the exposed edge of said coating to prevent degradation of the coating caused by exposure to the environment.

Claim 29

Dependent Claim 45 words

The method as in claim 21 wherein said sealant applying step includes applying the sealant to the exposed coating edge and to a marginal edge portion of said coating adjacent said exposed coating edge, said sealant applying step is practiced prior to said securing step.

Claim 30

Dependent Claim 31 words

The method as in claim 21 wherein the plies are glass plies and said sealant applying step includes applying the sealant to a marginal portion of one of the glass plies.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-06-16	1995-12-16	1996-06-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-06-16	1999-12-16	2000-06-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-06-16	2003-12-16	2004-06-16	$7700.00	Window Closed / Lapsed

Windshield edge seal

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