US4765243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of printing on plastic substrate using a water-based ink
Assignee: Dow Silicones Corp
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Filing: 1987-06-02
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Granted: 1988-08-23
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Expires: 2007-06-02
Abstract
Abstract A method of flexographic or rotogravure printing onto a plastic substrate using a water-based ink is disclosed wherein the improvement comprises adding to said ink from about 0.005 to about 5 weight percent of a low molecular weight silicone compound. The incorporation of the silicone compound provides good wetting of the substrate by the ink and results in improved printing characteristics.
Inventors
- 👤 Harry M. Schiefer
- 👤 Keith S. McClarnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:16
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; B; B41; B41M; B41M1/00; B41M1/26; B41M1/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
201 words
In a method of flexographic or rotogravure printing onto a plastic substrate using a water-based ink, the improvement comprising adding to said ink from about 0.005 to about 5 weight percent of a silicone compound selected from those represented by the average formulas (Me 3 SiO) 3 SiQ, (Me 3 SiO(Me 2 SiO)) 3 SiQ, Me 3 SiO(MeQSiO) i SiMe 3 , Me 3 SiO(Me 2 SiO) j (MeQSiO) k SiMe 3 , ZMe 2 SiO(Me 2 SiO) w SiMe 2 Q or ZMe 2 SiO(Me 2 SiO) x (MeQSiO) y SiMe 2 Q wherein Me denotes the methyl radical, Z is Me or Q, Q is selected from --R(CH 2 CH 2 O) n R' or --RO(CH 2 CH 2 O) n R', in which R is an alkylene group having from 2 to 6 carbon atoms, R' is selected from hydrogen, an alkyl group having 1 to 4 carbon atoms or an acyl group having 2 to 7 carbon atoms and n is 3 to 15, and wherein i is 1 to 5, j is 1 to 4, k is 1 to 3, w is 1 to 4, x is 1 to 3 and y is 1 to 3.
Claim 2
Dependent Claim
201 words
In a method of flexographic or rotogravure printing onto a plastic substrate using a water-based ink, the improvement comprising adding to said ink from about 0.005 to about 5 weight percent of a silicone compound selected from those represented by the average formulas (Me 3 SiO) 3 SiQ, (Me 3 SiO(Me 2 SiO)) 3 SiQ, Me 3 SiO(MeQSiO) i SiMe 3 , Me 3 SiO(Me 2 SiO) j (MeQSiO) k SiMe 3 , ZMe 2 SiO(Me 2 SiO) w SiMe 2 Q or ZMe 2 SiO(Me 2 SiO) x (MeQSiO) y SiMe 2 Q wherein Me denotes the methyl radical, Z is Me or Q, Q is selected from --R(CH 2 CH 2 O) n R' or --RO(CH 2 CH 2 O) n R', in which R is an alkylene group having from 2 to 6 carbon atoms, R' is selected from hydrogen, an alkyl group having 1 to 4 carbon atoms or an acyl group having 2 to 7 carbon atoms and n is 3 to 15, and wherein i is 1 to 5, j is 1 to 4, k is 1 to 3, w is 1 to 4, x is 1 to 3 and y is 1 to 3.
Claim 3
Dependent Claim
12 words
The process according to claim 1, wherein Z is the group Q.
Claim 4
Dependent Claim
19 words
The process according to claim 2, wherein R' is selected from hydrogen, the methyl radical or the acetyl group.
Claim 5
Dependent Claim
10 words
The process according to claim 3, wherein R' is hydrogen.
Claim 6
Dependent Claim
31 words
The process according to claim 4, wherein said silicone compound is selected from Me 3 SiO(MeQSiO) i SiMe 3 or Me 3 SiO(Me 2 SiO) j (MeQSiO) k SiMe 3 .
Claim 7
Dependent Claim
11 words
The process according to claim 5, wherein i=1, j=1 and k=1.
Claim 8
Dependent Claim
12 words
The process according to claim 6, wherein n is 7 to 12.
Claim 9
Dependent Claim
24 words
The process according to claim 7, wherein Q is the group --CH 2 CH 2 CH 2 O(CH 2 CH 2 O) n H.
Claim 10
Dependent Claim
22 words
The process according to claim 8, wherein from 0.1 to 1.0 weight percent of said silicone compound is added to said ink.
Claim 11
Dependent Claim
13 words
The process according to claim 1, wherein said substrate is high slip polyethylene.
Claim 12
Dependent Claim
13 words
The process according to claim 5, wherein said substrate is high slip polyethylene.
Claim 13
Dependent Claim
13 words
The process according to claim 8, wherein said substrate is high slip polyethylene.
Claim 14
Dependent Claim
13 words
The process according to claim 9, wherein said substrate is high slip polyethylene.
References Cited (Backward Citations)
US3299112A
Cited
US4137083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |