Patent US4539345A successfully refreshed from Google Patents.
US4539345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture-curable polyurethane composition
Assignee: 3M Co
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Filing: 1985-02-04
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Granted: 1985-09-03
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Expires: 2005-02-04
Abstract
Abstract One-part moisture-curable polyurethane adhesive, coating, sealant, or casting compositions containing a blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound. The compositions adhere to a variety of unprimed substrates, and resist moisture and UV exposure.
Inventors
- 👤 Dennis D. Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:57
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; C08K; C08K5/00; C08K5/54; C09; C09J; C09J175/00; C09J175/04; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31601
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
26 words
A one-part moisture-curable polyurethane composition, comprising a substantially uniform mixture of isocyanate-functional prepolymer, and effective amount of terpene-phenolic resin, and an effective amount of silane compound.
Claim 2
Dependent Claim
26 words
A one-part moisture-curable polyurethane composition, comprising a substantially uniform mixture of isocyanate-functional prepolymer, and effective amount of terpene-phenolic resin, and an effective amount of silane compound.
Claim 3
Dependent Claim
18 words
A composition according to claim 1, wherein said terpene-phenolic resin has a hydroxyl number less than about 200.
Claim 4
Dependent Claim
22 words
A composition according to claim 1, wherein said terpene-phenolic resin has a ratio of terpene to phenol of at least about 1.0:1.
Claim 5
Dependent Claim
23 words
A composition according to claim 1, containing about 0.1 to 100 parts by weight of said resin per 100 parts of said prepolymer.
Claim 6
Dependent Claim
23 words
A composition according to claim 4, containing about 10 to 50 parts by weight of said resin per 100 parts of said prepolymer.
Claim 7
Dependent Claim
15 words
A composition according to claim 1, wherein said silane compound comprises mercaptosilane or secondary aminosilane.
Claim 8
Dependent Claim
16 words
A composition according to claim 1, wherein said silane compound contains one or more alkoxy groups.
Claim 9
Dependent Claim
19 words
A composition according to claim 1, wherein said silane compound comprises an isocyanate-functional adduct of isocyanate-reactive silane and polyisocyanate.
Claim 10
Dependent Claim
23 words
A composition according to claim 1, containing about 0.1 to 25 parts by weight of said silane compound per parts of said prepolymer.
Claim 11
Dependent Claim
24 words
A composition according to claim 9, containing about 1 to 10 parts by weight of said silane compound per 100 parts of said prepolymer.
Claim 12
Dependent Claim
14 words
A composition according to claim 1, further comprising bis[2-N,N-dialkylamino)alkyl] ether or dimorpholinodialkyl ether catalyst.
Claim 13
Dependent Claim
10 words
A composition according to claim 1, further comprising glass bubbles.
Claim 14
Dependent Claim
35 words
An article of manufacture, comprising a first and a second substrate, with a layer therebetween comprising a one-part moisture-cured polyurethane composition derived from a substantially uniform blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound.
Claim 15
Dependent Claim
35 words
An article of manufacture, comprising a first and a second substrate, with a layer therebetween comprising a one-part moisture-cured polyurethane composition derived from a substantially uniform blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound.
Claim 16
Dependent Claim
21 words
An article according to claim 13, wherein said first substrate comprises a vehicle and said second substrate comprises laminated safety glass.
Claim 17
Dependent Claim
31 words
An article of manufacture, comprising a substrate coated with a layer of a one-part moisture-cured polyurethane composition derived from a substantially uniform blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound.
Claim 18
Dependent Claim
31 words
An article of manufacture, comprising a substrate coated with a layer of a one-part moisture-cured polyurethane composition derived from a substantially uniform blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound.
Claim 19
Dependent Claim
12 words
An article according to claim 15, wherein said substrate comprises cured concrete.
Claim 20
Dependent Claim
20 words
An article according to claim 15, wherein said substrate comprises a fabric web and said article comprises an orthopedic cast.
Claim 21
Independent Claim
64 words
A method for coating a first substrate, or for bonding a second substrate thereto, comprising the steps of applying to said first substrate a layer of one-part moisture-curable polyurethane comprising a substantially uniform blend of isocyanate-functional prepolymer, an effective amount of terpene-phenolic resin, and an effective amount of silane compound, optionally applying said second substrate to said layer, and allowing said composition to cure.
Claim 22
Independent Claim
64 words
A method for coating a first substrate, or for bonding a second substrate thereto, comprising the steps of applying to said first substrate a layer of one-part moisture-curable polyurethane comprising a substantially uniform blend of isocyanate-functional prepolymer, an effective amount of terpene-phenolic resin, and an effective amount of silane compound, optionally applying said second substrate to said layer, and allowing said composition to cure.
References Cited (Backward Citations)
US3707521A
Cited
US3779794A
Cited
US3723163A
Cited
US4081425A
Cited
US4124556A
Cited
US4502479A
Cited
US4511626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |