Patent US4010687A successfully refreshed from Google Patents.
US4010687A
Expired / Lapsed
US
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Planographic printing master
Assignee: Xerox Corp
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Filing: 1973-04-13
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Granted: 1977-03-08
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Expires: 1993-04-13
Abstract
Abstract A novel printing master and method for producing the same is disclosed which comprises; coating a suitable substrate with a layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase. A particulate image pattern is thereafter deposited on the layer and fused thereon to provide ink receptive image areas on said layer. The material used to provide the particulate image pattern comprises a heterophase polymeric composition also having a silicone phase, thereby providing a physically compatible image pattern for adherence to the silicone containing ink release layer.
Inventors
- 👤 Richard L. Schank
- 👤 Richard G. Crystal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:17
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/003; G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; G03G13/286
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
81 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase; c. depositing a particulate image pattern on said layer, said image pattern comprising an ink receptive heterophase polymeric composition having a silicone phase; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 2
Independent Claim
81 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase; c. depositing a particulate image pattern on said layer, said image pattern comprising an ink receptive heterophase polymeric composition having a silicone phase; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 3
Dependent Claim
21 words
A method as set forth in claim 1 wherein said layer has a thickness of between about 0.1 and 50 microns.
Claim 4
Dependent Claim
26 words
A method as set forth in claim 1 wherein said heterophase polymeric composition is selected from the group consisting of organopolysiloxane copolymers and organopolysiloxane polymer blends.
Claim 5
Dependent Claim
35 words
A method as set forth in claim 3 wherein said organopolysiloxane copolymers comprise copolymers of organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 6
Dependent Claim
38 words
A method as set forth in claim 3 wherein said organopolysiloxane polymer blends comprise a mixture of an organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 7
Dependent Claim
35 words
A method of producing a printing master, as set forth in claim 1 wherein said heterophase polymeric composition for said ink release layer comprises between about 95 to 50 parts by weight of an organopolysiloxane.
Claim 8
Dependent Claim
27 words
A method as set forth in claim 1 wherein an adhesive interface layer is provided between said layer of silicone containing heterophase polymeric composition and said substrate.
Claim 9
Independent Claim
79 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an ink releasable heterophase polymeric composition having a silicone phase; c. depositing a particulate image pattern on said layer, said image pattern comprising a heterophase polymeric composition having a silicone phase, said image pattern composition including an added ink receptive component; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 10
Independent Claim
79 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an ink releasable heterophase polymeric composition having a silicone phase; c. depositing a particulate image pattern on said layer, said image pattern comprising a heterophase polymeric composition having a silicone phase, said image pattern composition including an added ink receptive component; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 11
Dependent Claim
21 words
A method as set forth in claim 8 wherein said layer has a thickness of between about 0.1 and 50 microns.
Claim 12
Dependent Claim
26 words
A method as set forth in claim 8 wherein said heterophase polymeric composition is selected from the group consisting of organopolysiloxane copolymers and organopolysiloxane polymer blends.
Claim 13
Dependent Claim
37 words
A method as set forth in claim 8 wherein said heterophase composition comprises a copolymer of an organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 14
Dependent Claim
37 words
A method as set forth in claim 8 wherein said heterophase composition comprises a mixture of an organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 15
Dependent Claim
35 words
A method of producing a printing master, as set forth in claim 8 wherein said heterophase polymeric composition for said ink release layer comprises between about 95 to 50 parts by weight of an organopolysiloxane.
Claim 16
Dependent Claim
27 words
A method as set forth in claim 8 wherein an adhesive interface layer is provided between said layer of silicone containing heterophase polymeric composition and said substrate.
Claim 17
Dependent Claim
37 words
A method as set forth in claim 8 wherein said ink receptive compound is present in an amount of between about 4% and 50% by weight of said heterophase polymeric composition employed for said particulate imaging material.
Claim 18
Independent Claim
62 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an organopolysiloxane copolymer; c. depositing a particulate image pattern on said layer; said image pattern comprising a heterophase polymeric composition having a silicone phase; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 19
Independent Claim
62 words
A method of producing a printing master comprising: a. providing a suitable substrate; b. coating said substrate with a layer of an organopolysiloxane copolymer; c. depositing a particulate image pattern on said layer; said image pattern comprising a heterophase polymeric composition having a silicone phase; and d. fusing said image pattern on said layer whereby said image pattern provides ink receptive areas.
Claim 20
Dependent Claim
24 words
A method as set forth in claim 16 wherein said organopolysiloxane copolymer is selected from the group consisting of diblock and multiblock organopolysiloxane copolymers.
Claim 21
Dependent Claim
21 words
A method as set forth in claim 17 wherein said diblock and multiblock copolymers comprise copolymers of an organopolysiloxane and polystyrene.
Claim 22
Dependent Claim
21 words
A method as set forth in claim 17 wherein said diblock and multiblock copolymers comprise copolymers of an organopolysiloxane and poly(α-methylstyrene).
Claim 23
Dependent Claim
24 words
A method as set forth in claim 16 wherein an adhesive interface layer is provided between said layer of organopolysiloxane copolymer and said substrate.
Claim 24
Dependent Claim
37 words
A method as set forth in claim 16 wherein said organopolysiloxane copolymer comprises a copolymer of an organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 25
Dependent Claim
24 words
A method as set forth in claim 16 wherein said organopolysiloxane copolymer comprises between about 95 to 50 parts by weight of an organopolysiloxane.
Claim 26
Dependent Claim
23 words
A method as set forth in claim 16 wherein fusion is carried out by exposure of said image pattern to a solvent vapor.
Claim 27
Dependent Claim
61 words
A printing master having image areas of ink receptivity and non-image areas of ink releasability, comprising; a substrate, an overlying layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase, and an ink receptive image on said layer, said image comprising a heterophase polymeric composition having a silicone phase.
Claim 28
Dependent Claim
61 words
A printing master having image areas of ink receptivity and non-image areas of ink releasability, comprising; a substrate, an overlying layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase, and an ink receptive image on said layer, said image comprising a heterophase polymeric composition having a silicone phase.
Claim 29
Dependent Claim
56 words
A printing master having image areas of ink receptivity and nonimage areas of ink releasability comprising; a substrate, an overlying layer of an organopolysiloxane copolymer with a particulate image pattern on said layer providing ink receptive image areas, said image pattern comprising a heterophase polymeric composition having a silicone phase and an added ink receptive component.
Claim 30
Dependent Claim
56 words
A printing master having image areas of ink receptivity and nonimage areas of ink releasability comprising; a substrate, an overlying layer of an organopolysiloxane copolymer with a particulate image pattern on said layer providing ink receptive image areas, said image pattern comprising a heterophase polymeric composition having a silicone phase and an added ink receptive component.
Claim 31
Dependent Claim
38 words
A printing master as set forth in claim 25 wherein said organopolysiloxane copolymer comprises a copolymer of an organopolysiloxane and a polymeric material in an amorphous state having a glass transition temperature of at least about ambient temperature.
Claim 32
Dependent Claim
25 words
A printing master as set forth in claim 26 wherein said organopolysiloxane copolymer is selected from the group consisting of diblock and multiblock organopolysiloxane copolymers.
Claim 33
Dependent Claim
22 words
A printing master as set forth in claim 27 wherein said diblock and multiblock copolymers comprise copolymers of an organopolysiloxane and polystyrene.
Claim 34
Dependent Claim
24 words
A printing master as set forth in claim 27 wherein said diblock and multiblock copolymers comprise copolymers of an organopolysiloxane and poly (α -methylstyrene).
Claim 35
Dependent Claim
25 words
A printing master as set forth in claim 25 wherein an adhesive interface layer is provided between said layer of organopolysiloxane copolymer and said substrate.
Claim 36
Dependent Claim
25 words
A printing master as set forth in claim 25 wherein said organopolysiloxane copolymer comprises between about 95 to 50 parts by weight of an organopolysiloxane.
Claim 37
Dependent Claim
38 words
A printing master as set forth in claim 25 wherein said ink receptive component is present in an amount of between about 4 and 50% by weight of said heterophase polymeric composition employed by said particulate image pattern.
Claim 38
Independent Claim
91 words
A method of printing with a printing master comprising a layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase, coated on a suitable substrate and having a fused particulate image pattern on said ink releasable layer, said image pattern comprising an ink receptive heterophase polymeric composition having a silicone phase, said method of printing comprising applying ink to said fused image pattern and contacting the inked image with an image receiving surface to thereby transfer said inked image.
Claim 39
Independent Claim
91 words
A method of printing with a printing master comprising a layer of an ink releasable material selected from the group consisting of silicone elastomers and heterophase polymeric compositions having a silicone phase, coated on a suitable substrate and having a fused particulate image pattern on said ink releasable layer, said image pattern comprising an ink receptive heterophase polymeric composition having a silicone phase, said method of printing comprising applying ink to said fused image pattern and contacting the inked image with an image receiving surface to thereby transfer said inked image.
Claim 40
Independent Claim
71 words
A method of printing with a master comprising a particulate image pattern comprising a heterophase polymeric composition having a silicone phase and an ink receptive component fused to a layer of an ink releasable heterophase polymeric composition having a silicone phase, on a suitable substrate, said method of printing comprising applying ink to said image pattern and contacting said inked image with an image receiving surface to thereby transfer said image.
Claim 41
Independent Claim
71 words
A method of printing with a master comprising a particulate image pattern comprising a heterophase polymeric composition having a silicone phase and an ink receptive component fused to a layer of an ink releasable heterophase polymeric composition having a silicone phase, on a suitable substrate, said method of printing comprising applying ink to said image pattern and contacting said inked image with an image receiving surface to thereby transfer said image.
Claim 42
Independent Claim
61 words
A method of printing with a printing master comprising a particulate image pattern comprising a heterophase polymeric composition having a silicone phase fused to a layer of an organopolysiloxane copolymer on a suitable substrate, said method of printing comprising applying ink to said image pattern and contacting said inked image with an image receiving surface to thereby transfer said inked image.
Claim 43
Independent Claim
61 words
A method of printing with a printing master comprising a particulate image pattern comprising a heterophase polymeric composition having a silicone phase fused to a layer of an organopolysiloxane copolymer on a suitable substrate, said method of printing comprising applying ink to said image pattern and contacting said inked image with an image receiving surface to thereby transfer said inked image.
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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) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |