US4169822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt sealants
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1977-05-13
•
Granted: 1979-10-02
•
Expires: 1997-05-13
Abstract
Abstract Solvent-free hot melt compositions for use as sealants, adhesives, caulking compounds or the like are produced by intimately blending elastomeric polymers with tackifying resins and plasticizers to obtain products having a hardness at room temperature of at least about 5 on the Shore A Durometer scale while being sufficiently soft at temperatures of about 150° F. or higher to permit them to be easily extruded or otherwise applied. Adhesion promoters, lubricants, fillers and the like are preferably added to the composition to improve the properties thereof. The products are characterized by their stability over a wide range of temperatures, their resistance to oxidation and weathering, and their low moisture vapor transmission properties.
Inventors
- 👤 Edward F. Kutch
- 👤 Robert M. Meyers
- 👤 Matthew M. Sitter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:59
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1006; C09K3/1021; C08; C08L; C08L75/00; C08L75/04; C09D; C09D5/00; C09D5/34; C09J; C09J121/00; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C09J125/10; C09J153/00; C09J153/02; C09J175/00; C09J175/04; C09K3/1012; C09K3/1018; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/28; C08L2666/54; C09K2200/00; C09K2200/02; C09K2200/0204; C09K2200/0208; C09K2200/0239; C09K2200/04; C09K2200/0447; C09K2200/06; C09K2200/0607; C09K2200/0615; C09K2200/0617; C09K2200/0645; C09K2200/0647; C09K2200/0655; C09K2200/067; C09K2200/0672; C09K2200/068; C09K2200/0682; C09K2200/069
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
215 words
Solvent-free, hot-melt compositions adapted to be extruded for use as sealants, adhesives, caulking compounds, expansion joints and the like consisting essentially of an unreacted mechanical mixture of 100 parts by weight of a polymerized elastomeric compound having a molecular weight above about 15,000 and selected from the group consisting of polyisobutylene, butadiene-styrene, styrene-butadiene-styrene polymers, styrene-isoprene polymers, chlorinated rubbers, acrylic rubber and mixtures thereof, with from about 1 to 400 parts by weight of tackifying resins selected from the group consisting of terpene resins, polyterpene resins, phenolic resins, hydrogenated rosin, hydrocarbon resins and mixtures thereof; from about 15 to 600 parts by weight of plasticizers selected from the group consisting of polybutenes, low molecular weight polyisobutylenes, phosphate esters, dibutyl phthalate, straight chain aliphatic acid esters, paraffin oils, coal tars, asphalts, chlorinated polyphenyl, chlorinated biphenyl and mixtures thereof; from about 0.5 to 60 parts by weight of adhesion promoter comprising the combination of an eopxy resin and an organic silane which is non-reactive with the epoxy resin, and from about 5 to 1000 parts by weight of an inert filler material; said composition being readily extrudable at temperatures above about 150° F. while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 95 on a Shore A Durometer at room temperature.
Claim 2
Dependent Claim
215 words
Solvent-free, hot-melt compositions adapted to be extruded for use as sealants, adhesives, caulking compounds, expansion joints and the like consisting essentially of an unreacted mechanical mixture of 100 parts by weight of a polymerized elastomeric compound having a molecular weight above about 15,000 and selected from the group consisting of polyisobutylene, butadiene-styrene, styrene-butadiene-styrene polymers, styrene-isoprene polymers, chlorinated rubbers, acrylic rubber and mixtures thereof, with from about 1 to 400 parts by weight of tackifying resins selected from the group consisting of terpene resins, polyterpene resins, phenolic resins, hydrogenated rosin, hydrocarbon resins and mixtures thereof; from about 15 to 600 parts by weight of plasticizers selected from the group consisting of polybutenes, low molecular weight polyisobutylenes, phosphate esters, dibutyl phthalate, straight chain aliphatic acid esters, paraffin oils, coal tars, asphalts, chlorinated polyphenyl, chlorinated biphenyl and mixtures thereof; from about 0.5 to 60 parts by weight of adhesion promoter comprising the combination of an eopxy resin and an organic silane which is non-reactive with the epoxy resin, and from about 5 to 1000 parts by weight of an inert filler material; said composition being readily extrudable at temperatures above about 150° F. while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 95 on a Shore A Durometer at room temperature.
Claim 3
Dependent Claim
18 words
A hot melt composition as defined in claim 1 wherein the polymerized elastomeric compound is styrene butadiene rubber.
Claim 4
Dependent Claim
16 words
A hot melt composition as defined in claim 1 wherein the polymerized elastomeric compound is polyisobutylene.
Claim 5
Dependent Claim
54 words
A hot melt composision as defined in claim 1 wherein the polymerized elastomeric compound is styrene butadiene rubber and the adhesion promoter consists of the combination of an epoxy resin with an organic silane and is present in an amount equal to about 20% by weight of the weight of the styrene butadiene rubber.
Claim 6
Dependent Claim
49 words
A hot melt composition as defined in claim 1 wherein the polymerized elastomeric compound is polyisobutylene and the adhesion promoter consists of the combination of an epoxy resin with an organic silane and is present in the amount of about 20% by weight of the weight of the polyisobutylene.
Claim 7
Dependent Claim
30 words
A hot melt composition as defined in claim 1 wherein the epoxy resin has an epoxy equivalent of from about 150 to 3000 and is non-reactive with the organic silane.
Claim 8
Dependent Claim
202 words
Solvent-free, hot-melt compositions adapted to be extruded for use as sealants, adhesives, caulking compounds, expansion joints and the like consisting essentially of an unreacted mechanical mixture of 100 parts by weight of elastomeric polyisobutylene having a molecular weight above about 15,000, with from about 1 to 400 parts by weight of tackifying resin selected from the group consisting of terpene resins, polyterpene resins, phenolic resins, hydrogenated rosin, hydrocarbon resins and mixtures thereof; from about 15 to 600 parts by weight of plasticizer selected from the group consisting of polybutenes, low molecular weight polyisobutylenes, phosphate esters, dibutyl phthalate, straight chain aliphatic acid esters, paraffin oils, coal tars, asphalts, chlorinated polyphenyl, chlorinated biphenyl, and mixtures thereof; from about 0.5 to 60 parts by weight of adhesion promoter comprising the combination of an epoxy resin having an epoxide equivalent of from about 150 to 3000 and an organic silane which is non-reactive with the epoxy resin; and from about 5 to 1000 parts by weight of an inert filler material; said composition being readily extrudable at temperatures above 150° F. while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 9
Dependent Claim
202 words
Solvent-free, hot-melt compositions adapted to be extruded for use as sealants, adhesives, caulking compounds, expansion joints and the like consisting essentially of an unreacted mechanical mixture of 100 parts by weight of elastomeric polyisobutylene having a molecular weight above about 15,000, with from about 1 to 400 parts by weight of tackifying resin selected from the group consisting of terpene resins, polyterpene resins, phenolic resins, hydrogenated rosin, hydrocarbon resins and mixtures thereof; from about 15 to 600 parts by weight of plasticizer selected from the group consisting of polybutenes, low molecular weight polyisobutylenes, phosphate esters, dibutyl phthalate, straight chain aliphatic acid esters, paraffin oils, coal tars, asphalts, chlorinated polyphenyl, chlorinated biphenyl, and mixtures thereof; from about 0.5 to 60 parts by weight of adhesion promoter comprising the combination of an epoxy resin having an epoxide equivalent of from about 150 to 3000 and an organic silane which is non-reactive with the epoxy resin; and from about 5 to 1000 parts by weight of an inert filler material; said composition being readily extrudable at temperatures above 150° F. while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 10
Dependent Claim
103 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Polyterpene resin 25
Calcium carbonate 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 11
Dependent Claim
103 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Polyterpene resin 25
Calcium carbonate 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 12
Dependent Claim
103 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Calcium carbonate 50
Phenolic resin 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 13
Dependent Claim
103 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Calcium carbonate 50
Phenolic resin 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 14
Dependent Claim
102 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Polyterpene 50
Calcium carbonate 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
Claim 15
Dependent Claim
102 words
A solvent-free hot melt composition adapted to be used as a sealant, caulking compound, expansion joint or the like consisting essentially of an unreacted mechanical mixture having approximately the following composition in parts by weight: ______________________________________
Polyisobutylene, having a molecular
weight above about 15,000
100
Polyterpene 50
Calcium carbonate 50
Carbon black 10
Epoxy resin 20
Organic silane, which is non-reactive
with epoxy resins 1
______________________________________ said composition being readily extrudable at temperatures above about 150° F., while hardening upon cooling without undergoing chemical change, and having a hardness of about 5 to 94 on a Shore A Durometer at room temperature.
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) | 1982-10-01 | 1983-04-02 | 1983-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-01 | 1987-04-02 | 1987-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-01 | 1991-04-02 | 1991-10-02 | $7700.00 | Window Closed / Lapsed |