US3765924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finishing process and composition
Assignee: EIDP Inc
•
Filing: 1971-06-29
•
Granted: 1973-10-16
•
Expires: 1991-06-29
Abstract
Abstract A dispersion, suitable for finishing substrates such as wood, metal, leather, paper, fabrics, plastics and the like, having a continuous liquid phase and a dispersed polymer phase which undergoes only partial coalescence on drying under ambient conditions thereby being easy to work (sand). On being subjected to coalescing means substantially complete coalescence can thereafter be obtained.
Inventors
- 👤 J Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:40
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/10; B05D3/107; B05D3/108; B05D3/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
22 words
A process according to claim 1 wherein the coalescing means comprises contacting said layer with a solvent and subsequently evaporating said solvent.
Claim 2
Dependent Claim
91 words
The process of claim 1 wherein the polymer present in the disperse phase has a Tg between about 40* C. and 70* C. and is at least one member of the group consisting of poly(alkyl acrylates), poly(alkyl methacrylates), interpolymers of an alkyl acrylate and an alkyl methacrylate, and interpolymers of about 50-99.9 percent by weight of units of an alkyl acrylate or an alkyl methacrylate and about 0.1-50 percent by weight of units of another ethylenically unsaturated compound selected from the group consisting of poly(vinyl acetate), polystyrene, poLy(vinyl chloride), poly(vinylidene chloride).
Claim 3
Dependent Claim
12 words
The process of claim 3 wherein the dispersion also contains a pigment.
Claim 4
Dependent Claim
22 words
A process according to claim 3 wherein the coalescing means comprising contacting said layer with a solvent and subsequently evaporating said solvent.
Claim 5
Dependent Claim
22 words
A process according to claim 4 wherein the coalescing means comprising contacting said layer with a solvent and subsequently evaporating said solvent.
References Cited (Backward Citations)
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US3222208A
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US3304279A
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US3331801A
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US3451978A
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Cited
US3647516A
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |