Patent US4629667A successfully refreshed from Google Patents.
US4629667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
White reflective coating
Assignee: 3M Co
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Filing: 1985-03-29
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Granted: 1986-12-16
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Expires: 2005-03-29
Abstract
Abstract A coating composition for the backside of photographic prints and photographic prints so coated are described. The white coating is reflective, flexible, and water resistant.
Inventors
- 👤 John F. Kistner
- 👤 Donald R. Hotchkiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:06
CPC Classifications
G; G03; G03C; G03C9/00; G03C11/00; G03C11/08; Y; Y10; Y10S; Y10S430/00; Y10S430/147; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
An autostereographic print comprising a lenticular element having a lenticular front surface and a non-lenticular back surface, secured to said non-lenticular back surface one surface of a transparent optical element having at least two perspective images, and secured to the other surface of said optical element a backing layer comprising the dried and crosslinked product of a composition comprising by weight: 0.1 to 52% of a white pigment 0.25 to 12% of a water-soluble, crosslinkable, synthetic polymeric binder, 0.05 to 6% of a water-soluble crosslinking agent comprising a melamine-formaldehyde water-soluble resin for said water-soluble crosslinkable binder, and 30 to 80% water.
Claim 2
Dependent Claim
101 words
An autostereographic print comprising a lenticular element having a lenticular front surface and a non-lenticular back surface, secured to said non-lenticular back surface one surface of a transparent optical element having at least two perspective images, and secured to the other surface of said optical element a backing layer comprising the dried and crosslinked product of a composition comprising by weight: 0.1 to 52% of a white pigment 0.25 to 12% of a water-soluble, crosslinkable, synthetic polymeric binder, 0.05 to 6% of a water-soluble crosslinking agent comprising a melamine-formaldehyde water-soluble resin for said water-soluble crosslinkable binder, and 30 to 80% water.
Claim 3
Dependent Claim
14 words
The print of claim 1 wherein said optical element comprises a color photographic image.
Claim 4
Dependent Claim
40 words
The print of claim 2 wherein said backing layer comprises 0.5 to 85% white pigment 1.50% water-soluble binder, and 0.2 to 25% water-soluble crosslinking agent for said binder, said binder and said crosslinking agent being at least in part coreacted.
Claim 5
Dependent Claim
20 words
The print of claim 3 wherein said backing layer further comprises 0.5 to 20% flexibilizer, and 0.25 to 5% surfactant.
Claim 6
Dependent Claim
15 words
The print of claim 3 further comprising from 0.5 to 15% of a crosslinking accelerator.
Claim 7
Dependent Claim
99 words
A process for producing an autostereographic print comprising: (a) providing at least two perspective images in an optical element which is secured to a non-lenticular surface of a lenticular sheet, (b) coating the surface of said optical element which is not secured to said lenticular sheet with a composition comprising by weight 0.1 to 52% of a white pigment 0.25 to 12% of a water-soluble, crosslinkable, synthetic polymeric binder, 0.05 to 6% of a water-soluble crosslinking agent comprising a melamine-formaldehyde water-soluble resin for said water-soluble crosslinkable binder, and 30 to 80% water, and (c) drying and curing said composition.
Claim 8
Dependent Claim
99 words
A process for producing an autostereographic print comprising: (a) providing at least two perspective images in an optical element which is secured to a non-lenticular surface of a lenticular sheet, (b) coating the surface of said optical element which is not secured to said lenticular sheet with a composition comprising by weight 0.1 to 52% of a white pigment 0.25 to 12% of a water-soluble, crosslinkable, synthetic polymeric binder, 0.05 to 6% of a water-soluble crosslinking agent comprising a melamine-formaldehyde water-soluble resin for said water-soluble crosslinkable binder, and 30 to 80% water, and (c) drying and curing said composition.
Claim 9
Dependent Claim
17 words
The print of claim 1 wherein said polymeric binder comprises poly(vinyl alcohol) with at least 95% hydrolysis.
Claim 10
Dependent Claim
17 words
The print of claim 1 wherein said water-soluble crosslinking agent consists essentially of a melamine-formaldehyde water-soluble resin.
Claim 11
Dependent Claim
17 words
The process of claim 6 wherein said polymeric binder comprises poly(vinyl alcohol) with at least 95% hydrolysis.
Claim 12
Dependent Claim
17 words
The process of claim 9 wherein said water-soluble crosslinking agent consists essentially of a melamine-formaldehyde water-soluble resin.
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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |