Patent US4130690A successfully refreshed from Google Patents.
US4130690A
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Abrasion resistant coatings cured in the presence of PF5, SbF5, or HSbF6
Assignee: 3M Co
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Filing: 1977-09-12
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Granted: 1978-12-19
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Expires: 1997-09-12
Abstract
Abstract Abrasion resistant coatings derived from epoxy-terminated silanes are desirable when formed by curing in the presence of PF 5 , SbF 5 , or HSbF 6 .
Inventors
- 👤 Larry A. Lien
- 👤 J. Lamar Zollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:46
CPC Classifications
C; C09; C09D; C09D4/00; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G77/00; C08G77/04; C08G77/06; C08G77/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31525; Y10T428/31529; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31725; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
An abrasion resistant coating on a substrate, said coating having at most 30% haze according to ASTM D 968-51 using 1 liter of sand in 10-11 seconds and comprising a polymer having at least 15% by weight units derived from an epoxy-terminated silane of the formulae: ##STR8## cured in the presence of a catalytically active amount of PF 5 , SbF 5 or HSbF 6 .
Claim 2
Dependent Claim
66 words
An abrasion resistant coating on a substrate, said coating having at most 30% haze according to ASTM D 968-51 using 1 liter of sand in 10-11 seconds and comprising a polymer having at least 15% by weight units derived from an epoxy-terminated silane of the formulae: ##STR8## cured in the presence of a catalytically active amount of PF 5 , SbF 5 or HSbF 6 .
Claim 3
Dependent Claim
50 words
The abrasion resistant coating on a substrate of claim 1 wherein R is selected from alkylene of 1 to 10 carbon atoms and --CH 2 --O--(CH 2 ) m wherein m is 1 to 5, n is 1, and R' is selected from alkyl of 1 to 4 carbon atoms.
Claim 4
Dependent Claim
19 words
The abrasion resistant coating on a substrate of claim 2 wherein the epoxy-terminated silane is of the formula ##STR9##
Claim 5
Dependent Claim
20 words
The abrasion resistant coating on a substrate of claim 3 wherein R is --CH 2 --O--(CH 2 ) m --.
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) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |