US3670049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowling lane finish containing a polyurethane and a polyolefin
Assignee: Brunswick Corp
•
Filing: 1970-05-15
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Granted: 1972-06-13
•
Expires: 1990-05-15
Abstract
Abstract A moisture curable polyurethane coating composition, suitable for finishing bowling lanes, contains from about 0.2 to about 10 percent by weight, based on the weight of the polyurethane prepolymer, of a finely divided slip agent such as polyethylene.
Inventors
- 👤 Alex H Stein
- 👤 William D Coder Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; Y; Y10; Y10S; Y10S273/00; Y10S273/04; Y10S273/08; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31779; Y10T428/31783; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31924
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
A bowling lane as described in claim 1, wherein said slip-producing agent is a polyethylene which is solid at room temperature.
Claim 2
Dependent Claim
23 words
A bowling lane as described in claim 1, wherein said slip-producing agent is a crystalline poly-ethylene having an average molecular weight of 2,000.
Claim 3
Dependent Claim
19 words
A bowling lane as described in claim 1, wherein the polyurethane is a moisture-cured reaction product of a polyether-polyol.
Claim 4
Dependent Claim
32 words
A bowling lane as described in claim 1, wherein the coating contains from about 0.5 percent to about 5 percent by weight, based on the weight of the polyurethane, of crystalline polyethylene.
Claim 5
Dependent Claim
19 words
A bowling lane as described in claim 5, wherein the polyurethane is a moisture-cured reaction product of a polyether-polyol.
Claim 6
Dependent Claim
28 words
A bowling lane as described in claim 6, wherein the polyurethane is produced from a polyether which is a reaction product of 1,5-pentanediol, trimethylol propane and polypropylene glycol.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |