US3711570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organopolysiloxane-polyvinyl chloride blends
Assignee: Wacker Chemical Corp
•
Filing: 1971-02-10
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Granted: 1973-01-16
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Expires: 1991-02-10
Abstract
Abstract Thixotropic organopolysiloxane compositions comprising a blend of a room-temperature-curable organopolysiloxane and polyvinyl chloride. The organopolysiloxane is characterized by having moisture-reactive groups containing nitrogen, e.g., amino, amido, aminooxy, or oximo groups. These compositions show improved adhesion to various substrates.
Inventors
- 👤 R Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:42
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
11 words
The composition of claim 1 wherein Z is an amino group.
Claim 2
Dependent Claim
15 words
The composition of claim 2 wherein Z is a cyclohexylamino group and n is 2.
Claim 3
Dependent Claim
11 words
The cured composition of claim 1 when exposed to atmospheric moisture.
Claim 4
Dependent Claim
11 words
The cured composition of claim 3 when exposed to atmospheric moisture.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein Z is an aminooxy group.
Claim 6
Dependent Claim
11 words
The composition of claim 1 wherein Z is an oximo group.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein Z is an amido group.
References Cited (Backward Citations)
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Cited
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Cited
DE1012716B
Cited
US3189576A
Cited
US3417047A
Cited
US3318898A
Cited
US3464951A
Cited
US3555109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |