Patent US4585819A successfully refreshed from Google Patents.
US4585819A
Expired / Lapsed
US
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Fusion adhesive which can comprise an isocyanate prepolymer, a thermoplastic polymer and/or a lower molecular weight ketone resin
Assignee: HB Fuller Licensing and Financing Inc
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Filing: 1984-08-14
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Granted: 1986-04-29
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Expires: 2004-08-14
Abstract
Abstract The present invention relates to fusion adhesives characterized in that they comprise an isocyanate prepolymer, a thermoplastic polyurethane or polyester, and/or a lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Inventors
- 👤 Ferdinand Reischle
- 👤 Jochen Windhoff
- 👤 Walter Bernig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:11
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31558; Y10T428/31569; Y10T428/31591; Y10T428/31605
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
38 words
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer, and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenated products of acetophenone condensation resins, and mixtures thereof.
Claim 2
Dependent Claim
38 words
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer, and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenated products of acetophenone condensation resins, and mixtures thereof.
Claim 3
Dependent Claim
17 words
The fusion adhesive of claim 1 which further comprises up to 75 percent by weight thermoplastic polyurethane.
Claim 4
Dependent Claim
15 words
The fusion adhesive of claim 1 which further comprises 10 to 70 percent thermoplastic polyester.
Claim 5
Dependent Claim
46 words
The fusion adhesive of claim 1 which comprises 50-75 percent by weight isocyanate prepolymer, 10-40 percent by weight lower molecular weight synthetic resin, and which further comprises 5-55 percent by weight thermoplastic polymer selected from the group consisting of thermoplastic polyurethane, thermoplastic polyester, and mixtures thereof.
Claim 6
Dependent Claim
48 words
The fusion adhesive of claim 1 which comprises 50-80 percent by weight isocyanate prepolymer, 20-70 percent by weight lower molecular weight synthetic resin, and which further comprises up to 2 percent by weight thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyesters, and mixtures thereof.
Claim 7
Dependent Claim
38 words
A fusion adhesive which comprises 50-75 percent by weight isocyanate prepolymer, and 10-40 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 8
Dependent Claim
38 words
A fusion adhesive which comprises 50-75 percent by weight isocyanate prepolymer, and 10-40 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 9
Dependent Claim
20 words
The fusion adhesive of claim 6 which further comprises up to 75 percent by weight thermoplastic polyurethane, and mixtures thereof.
Claim 10
Dependent Claim
38 words
A fusion adhesive which comprises 50-80 percent by weight isocyanate prepolymer, and 20-70 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 11
Dependent Claim
38 words
A fusion adhesive which comprises 50-80 percent by weight isocyanate prepolymer, and 20-70 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 12
Dependent Claim
30 words
The fusion adhesive of claim 8 which further comprises up to 2 percent by weight thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyesters, and mixtures thereof.
Claim 13
Dependent Claim
18 words
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer and 10-70 percent by weight thermoplastic polyester.
Claim 14
Dependent Claim
18 words
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer and 10-70 percent by weight thermoplastic polyester.
Claim 15
Dependent Claim
37 words
The fusion adhesive of claim 10 which further comprises up to 50 percent of lower weight molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 16
Independent Claim
52 words
A method of bonding substrates which comprises contacting a substrate with a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 17
Independent Claim
52 words
A method of bonding substrates which comprises contacting a substrate with a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claim 18
Dependent Claim
30 words
The method of claim 12 wherein the fusion adhesive further comprises 2-75 percent by weight thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyesters, and mixtures thereof.
Claim 19
Dependent Claim
35 words
The method of claim 12 wherein the fusion adhesive further comprises up to about 2 percent by weight of a thermoplastic polymer selected from the group consisting of thermoplastic polyurethanes, thermoplastic polyesters, and mixtures thereof.
Claim 20
Dependent Claim
37 words
The method of claim 12 wherein the substrate is selected from the group consisting of thermoplastic materials, thermosetting synthetics, foam material, varnished surfaces, wood and wooden material, paper, leather, synthetic leather, rubber, textiles, non-woven materials, and metals.
Claim 21
Independent Claim
100 words
A method of bonding substrates which comprises placing a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer, 0-50 percent by weight lower moleclar weight synthetic resin, and 10-70 percent by weight thermoplastic polyesters between a first substrate and a second substrate and contacting one of the first and second substrates with the other of the first and second substrates, wherein one of the first and second substrates comprises a foam material and the other of the first and second substrates comprises a material selected from the grop consisting of foam materials, non-woven materials and textiles.
Claim 22
Independent Claim
100 words
A method of bonding substrates which comprises placing a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer, 0-50 percent by weight lower moleclar weight synthetic resin, and 10-70 percent by weight thermoplastic polyesters between a first substrate and a second substrate and contacting one of the first and second substrates with the other of the first and second substrates, wherein one of the first and second substrates comprises a foam material and the other of the first and second substrates comprises a material selected from the grop consisting of foam materials, non-woven materials and textiles.
Claim 23
Dependent Claim
8 words
The product of the method of claim 12.
Claim 24
Dependent Claim
8 words
The product of the method of claim 13.
Claim 25
Dependent Claim
8 words
The product of the method of claim 14.
Claim 26
Dependent Claim
8 words
The product of the method of claim 15.
Claim 27
Dependent Claim
8 words
The product of the method of claim 16.
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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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |