US4921776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing lower gloss protective covering for pre-press color proof
Assignee: EIDP Inc
•
Filing: 1988-11-30
•
Granted: 1990-05-01
•
Expires: 2008-11-30
Abstract
Abstract Method of providing an image-bearing surface, e.g., a pre-press proof, with a protective covering, comprising laminating to said surface a thin, substantially transparent integral polymeric film, the improvement wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers, whereby the film exhibits a 20° specular gloss that is at least 5% lower than the gloss of a film prepared from any one of said polymer constituents.
Inventors
- 👤 Harvey W. Taylor, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:53
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/10; B; B41; B41M; B41M7/00; B41M7/0027; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
145 words
A method of providing a pre-press color proof with a lower-gloss protective covering, comprising in the stated order the steps of: (a) providing an element which comprises a thin, substantially transparent, nonphotosensitive, integral polymeric film having a thickness not greater than 0.002 cm on a removable substrate, said polymeric film consisting essentially of a mixture of at least two slightly incompatible polymers, said mixture of slightly incompatible polymers having been dissolved in an essentially organic solvent system, coated on the substrate, and dried, so that said polymeric film exhibits a 20° specular gloss that is at least 5% lower than a film prepared in the same manner from any one of said polymer constituents; (b) laminating the element to the surface of the prepress color proof, and, (c) removing the removable substrate, whereby the polymeric film becomes the outermost layer of the pre-press color proof.
Claim 2
Independent Claim
145 words
A method of providing a pre-press color proof with a lower-gloss protective covering, comprising in the stated order the steps of: (a) providing an element which comprises a thin, substantially transparent, nonphotosensitive, integral polymeric film having a thickness not greater than 0.002 cm on a removable substrate, said polymeric film consisting essentially of a mixture of at least two slightly incompatible polymers, said mixture of slightly incompatible polymers having been dissolved in an essentially organic solvent system, coated on the substrate, and dried, so that said polymeric film exhibits a 20° specular gloss that is at least 5% lower than a film prepared in the same manner from any one of said polymer constituents; (b) laminating the element to the surface of the prepress color proof, and, (c) removing the removable substrate, whereby the polymeric film becomes the outermost layer of the pre-press color proof.
Claim 3
Dependent Claim
18 words
A method according to claim 1, wherein the polymeric film has a thickness not greater than 0.001 cm.
Claim 4
Dependent Claim
32 words
A method according to claim 1, wherein the polymeric film has a 20° specular gloss that is at least 10% lower than a film prepared from any one of said polymer constituents.
Claim 5
Dependent Claim
50 words
A method according to claim 1, wherein the element which is provided comprises, in the stated order, a wetting layer, said polymeric film, and said removable substrate, and wherein the element is laminated to the pre-press color proof with the wetting layer in surface-to-surface contact with the pre-press color proof.
Claim 6
Dependent Claim
14 words
A method according to claim 4, wherein the wetting layer comprises an elastomeric polymer.
Claim 7
Dependent Claim
17 words
A method according to claim 4, wherein the pre-press color proof is toned with a particulate material.
Claim 8
Dependent Claim
17 words
A method according to claim 5, wherein the pre-press color proof is toned with a particulate material.
Claim 9
Dependent Claim
74 words
A method according to claim 1, wherein the polymeric film consists essentially of a mixture of at least two sightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; (e) two different polyamides; (f) polybutylmethacrylate and a polyamide; (g) a polyester and polybutylmethacrylate; (h) a polyester and polystyrene; (i) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 10
Dependent Claim
56 words
A method according to claim 1, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; and (e) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 11
Dependent Claim
42 words
A method according to claim 9, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate, and (b) polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 12
Dependent Claim
21 words
A method according to claim 10, wherein the polymeric film consists essentially of a mixture of polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 13
Dependent Claim
25 words
A method according to claim 11, wherein the polymeric film consists essentially of a mixture of about 10-90% polymethylmethacrylate, 10-90% polyvinylacetate, and 2-30% polyethylene glycol.
Claim 14
Dependent Claim
26 words
A method according to claim 12, wherein the polymeric film consists essentially of a mixture of about 65% polymethylmethacrylate, 29% polyvinylacetate, and about 4% polyethylene glycol.
Claim 15
Dependent Claim
25 words
A method according to claim 4, wherein the polymeric film consists essentially of a mixture of about 10-90% polymethylmethacrylate, 10-90% polyvinylacetate, and 2-30% polyethylene glycol.
Claim 16
Dependent Claim
14 words
A method according to claim 14, wherein the wetting layer comprises an elastomeric polymer.
Claim 17
Dependent Claim
22 words
A method according to claim 15, wherein the wetting layer comprises a mixture of 5-95% polybutadiene and 5-95% of a styrene/butadiene copolymer.
Claim 18
Dependent Claim
45 words
A method according to claim 14, wherein the polymeric film consists essentially of a mixture of about 65% polymethylmethacrylate, 29% polyvinylacetate, and about 4% polyethylene glycol and wherein the wetting layer comprises a mixture of about 90% polybutadiene and about 9% of a styrene/butadiene copolymer.
Claim 19
Dependent Claim
74 words
A method according to claim 4, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; (e) two different polyamides; (f) polybutylmethacrylate and a polyamide; (g) a polyester and polybutylmethacrylate; (h) a polyester and polystyrene; (i) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 20
Dependent Claim
56 words
A method according to claim 18, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; and (e) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 21
Dependent Claim
42 words
A method according to claim 19, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate, and (b) polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 22
Dependent Claim
21 words
A method according to claim 20, wherein the polymeric film consists essentially of a mixture of polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 23
Dependent Claim
22 words
A method according to claim 21, wherein the polymeric film consists essentially of about 10-90% polymethylmethacrylate, 10-90% polyvinylacetate, and 2-30% polyethylene glycol.
Claim 24
Dependent Claim
27 words
A method according to claim 22, wherein the polymeric film consists essentially of a mixture of about 65% polymethylmethacrylate, about 29% polyvinylacetate, and about 4% polyethylene glycol.
Claim 25
Dependent Claim
14 words
A method according to claim 18, wherein the wetting layer comprises an elastomeric polymer.
Claim 26
Dependent Claim
14 words
A method according to claim 20, wherein the wetting layer comprises an elastomeric polymer.
Claim 27
Dependent Claim
22 words
A method according to claim 25 wherein the wetting layer comprises a mixture of 5-95% polybutadiene and 5-95% of a styrene/butadiene copolymer.
Claim 28
Dependent Claim
45 words
A method according to claim 26, wherein the wetting layer comprises a mixture of about 90% polybutadiene and about 9% of a styrene/butadiene copolymer, and wherein the polymeric film consists essentially of a mixture of about 65% polymethylmethacrylate, 29% polyvinylacetate, and about 4% polyethylene glycol.
Claim 29
Dependent Claim
17 words
A method according to claim 18, wherein the pre-press color proof is toned with a particulate material.
Claim 30
Dependent Claim
17 words
A method according to claim 24, wherein the pre-press color proof is toned with a particulate material.
Claim 31
Independent Claim
143 words
A method of providing a pre-press color proof with a lower-gloss protective covering, comprising in the stated order the steps of: (a) preparing an element comprising a thin, substantially transparent, nonphotosensitive, integral polymeric film having a thickness not greater than 0.002 cm on a removable substrate, comprising the steps of: (i) dissolving at least two slightly incompatible polymers in an essentially organic solvent system, (ii) coating this polymer solution on an appropriate substrate, and (iii) drying, so that the thus-formed polymeric film exhibits a 20° specular gloss that is at least 5% lower than a film prepared in the same manner from any one of said polymer constituents; (b) laminating the element prepared in step (a) to the surface of the pre-press color proof; and, (c) removing the removable substrate, whereby the polymeric film becomes the outermost layer of the pre-press color proof.
Claim 32
Independent Claim
143 words
A method of providing a pre-press color proof with a lower-gloss protective covering, comprising in the stated order the steps of: (a) preparing an element comprising a thin, substantially transparent, nonphotosensitive, integral polymeric film having a thickness not greater than 0.002 cm on a removable substrate, comprising the steps of: (i) dissolving at least two slightly incompatible polymers in an essentially organic solvent system, (ii) coating this polymer solution on an appropriate substrate, and (iii) drying, so that the thus-formed polymeric film exhibits a 20° specular gloss that is at least 5% lower than a film prepared in the same manner from any one of said polymer constituents; (b) laminating the element prepared in step (a) to the surface of the pre-press color proof; and, (c) removing the removable substrate, whereby the polymeric film becomes the outermost layer of the pre-press color proof.
Claim 33
Dependent Claim
18 words
A method according to claim 30, wherein the polymeric film has a thickness not greater than 0.001 cm.
Claim 34
Dependent Claim
36 words
A method according to claim 30, wherein the polymeric film exhibits a 20° specular gloss that is at least 10% lower than a film prepared in the same manner from any one of said polymer constituents.
Claim 35
Dependent Claim
74 words
A method according to claim 30, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; (e) two different polyamides; (f) polybutylmethacrylate and a polyamide; (g) a polyester and polybutylmethacrylate; (h) a polyester and polystyrene; (i) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 36
Dependent Claim
42 words
A method according to claim 33, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate, and (b) polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 37
Dependent Claim
21 words
A method according to claim 34, wherein the polymeric film consists essentially of a mixture of polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 38
Dependent Claim
25 words
A method according to claim 35, wherein the polymeric film consists essentially of a mixture of about 10-90% polymethylmethacrylate, 10-90% polyvinylacetate, and 2-30% polyethylene glycol.
Claim 39
Dependent Claim
51 words
A method according to claim 30, wherein the element prepared in step (a) comprises, in the stated order, a wetting layer, said polymeric film, and said removable substrate, and wherein the element is laminated to the pre-press color proof with the wetting layer in surface-to-surface contact with the pre-press color proof.
Claim 40
Dependent Claim
17 words
A method according to claim 37, wherein the pre-press color proof is toned with a particulate toner.
Claim 41
Dependent Claim
14 words
A method according to claim 37, wherein the wetting layer comprises an elastomeric polymer.
Claim 42
Dependent Claim
17 words
A method according to claim 39, wherein the pre-press color proof is toned with a particulate toner.
Claim 43
Dependent Claim
74 words
A method according to claim 37, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer and polymethylmethacrylate; (b) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate; (c) polycarbonate and polymethylmethacrylate; (d) polycarbonate and polystyrene; (e) two different polyamides; (f) polybutylmethacrylate and a polyamide; (g) a polyester and polybutylmethacrylate; (h) a polyester and polystyrene; (i) polyvinylacetate, polymethylmethacrylate, and polyethylene glycol.
Claim 44
Dependent Claim
42 words
A method according to claim 41, wherein the polymeric film consists essentially of a mixture of at least two slightly incompatible polymers selected from the group consisting of: (a) an ethylene/vinylacetate copolymer, polymethylmethacrylate, and polyvinylacetate, and (b) polymethylmethacrylate, polyvinylacetate, and polyethylene glycol.
Claim 45
Dependent Claim
34 words
A method according to claim 42, wherein the polymeric film consists essentially of a mixture of polymethylmethacrylate, polyvinylacetate, and polyethylene glycol, and the wetting layer comprises a mixture of polybutadiene and a styrene/butadiene copolymer.
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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) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |