US3619224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt road-marking compositions
Assignee: Sakai Chemical Industry Co Ltd
•
Filing: 1969-07-22
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Granted: 1971-11-09
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Expires: 1989-07-22
Abstract
Abstract IS AN INTEGER OF 1 OR 2, AND 30 TO 75 WEIGHT PERCENT OF FILLER AND PIGMENT; SAID PHTHALIMIDE DERIVATIVE HAVING A MELTING POINT OF 90* TO 120* C. and capable of dissolving said thermoplastic resin binder therein when fused but having substantially no compatibility with the resin binder at a room temperature. A hot melt road-marking composition which comprises 15 to 40 weight percent of a thermoplastic binder resin having a softening point of 50* to 160* C., 10 to 30 weight percent of at least one species of phthalimide derivatives having the structural formula of
Inventors
- 👤 Wataru Inamoto
- 👤 Seizo Kuroki
- 👤 Kohtaro Tottori
- 👤 Osamu Nagasawa
- 👤 Sakai Chemical Industry Co Ltd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:15
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/004
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
38 words
The hot melt road-marking composition according to claim 1, in which said phthalimide derivative is at least one species selected from the group consisting of phthalimido methyl alcohol, phthalimido ethyl alcohol, phthalimidoethyl acetate, phthalimidoethyl benzoate and phthalimidoethyl phthalate.
Claim 2
Dependent Claim
18 words
The hot melt road-marking composition according to claim 2, in which said phthalimide derivative is phthalimido ethyl alcohol.
Claim 3
Dependent Claim
25 words
The hot melt road-marking composition according to claim 1, in which said phthalimide derivative is contained in the proportion of 20 to 27 weight percent.
Claim 4
Dependent Claim
17 words
The hot melt road-marking composition according to claim 1, in which said binder resin is terpene resin.
Claim 5
Dependent Claim
23 words
The hot melt road-marking composition according to claim 1, in which said binder resin has a softening point of 50 to 130* C.
Claim 6
Dependent Claim
25 words
The hot melt road-marking composition according to claim 1, in which said binder resin is contained in the proportion of 40 to 60 weight percent.
Claim 7
Dependent Claim
18 words
The hot melt road-marking composition according to claim 1, in which said binder resin is maleic acid resin.
Claim 8
Independent Claim
48 words
A method for marking road surface which comprises heating the composition of claim I at 120 to 200* C. to obtain a fused composition having a melt viscosity of lower than 1000 cps., spraying the fused composition onto a road surface and allowing the composition to be hardened.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |