Patent US4551516A successfully refreshed from Google Patents.
US4551516A
Expired / Lapsed
US
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Coating composition and the use thereof
Assignee: Toray Industries Inc
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Filing: 1983-05-17
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Granted: 1985-11-05
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Expires: 2003-05-17
Abstract
Abstract A coating composition comprising (a) a diorganopolysiloxane having 1 to 3 functional groups on each of both ends, (b) a diorganopolysiloxane having no functional group or having 1 to 3 functional groups on one end, and (c) a cross-linking agent having two or more functional groups capable of undergoing condensation or addition reaction with the functional groups is coated together with a solvent onto a printing plate or a printing part. The coating composition is ink-repellent and prevents an area to which ink is not to be applied from staining with ink by being coated onto the area.
Inventors
- 👤 Kazuo Kitamura
- 👤 Mitsuru Suezawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:17
CPC Classifications
B; B41; B41N; B41N3/00; C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/20; C08G77/22; C08G77/24; C08G77/26; C08G77/70; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
248 words
A coating composition comprising the combination of (a) a diorganopolysiloxane having 1 to 3 functional groups on both ends, represented by the following formula I, ##STR6## (b) a diorganopolysiloxane having 1 to 3 functional groups on only one end, represented by the following formula I', ##STR7## and (c) a cross-linking agent other than (a) or (b), and having two or more functional groups capable of undergoing condensation reactions with said functional groups, and represented by the formula X.sub.m S.sub.i R.sub.4-m, wherein X and R are as defined for Formula I, m is an integer of 2 to 4, or a condensate thereof, wherein in said formulas I and I' the designations R, R', R" and R"' each independently represent an alkyl, alkenyl or aryl group from 1 to 10 carbon atoms, which may optionally have suitable substituents, X and X' each independently represents a functional group selected from the group consisting of halogen, ##STR8## in which R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each independently represents unsubstituted or substituted alkyl from 1 to 10 carbon atoms, n is a number from 100 to 10,000, p and q are independently integers from 1 to 3, r and s are integers from 0 to 3, wherein one of r and s is 0, and r is an integer from 1 to 3 when s is 0, and when r is 0 s is an integer from 1 to 3.
Claim 2
Dependent Claim
248 words
A coating composition comprising the combination of (a) a diorganopolysiloxane having 1 to 3 functional groups on both ends, represented by the following formula I, ##STR6## (b) a diorganopolysiloxane having 1 to 3 functional groups on only one end, represented by the following formula I', ##STR7## and (c) a cross-linking agent other than (a) or (b), and having two or more functional groups capable of undergoing condensation reactions with said functional groups, and represented by the formula X.sub.m S.sub.i R.sub.4-m, wherein X and R are as defined for Formula I, m is an integer of 2 to 4, or a condensate thereof, wherein in said formulas I and I' the designations R, R', R" and R"' each independently represent an alkyl, alkenyl or aryl group from 1 to 10 carbon atoms, which may optionally have suitable substituents, X and X' each independently represents a functional group selected from the group consisting of halogen, ##STR8## in which R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 each independently represents unsubstituted or substituted alkyl from 1 to 10 carbon atoms, n is a number from 100 to 10,000, p and q are independently integers from 1 to 3, r and s are integers from 0 to 3, wherein one of r and s is 0, and r is an integer from 1 to 3 when s is 0, and when r is 0 s is an integer from 1 to 3.
Claim 3
Dependent Claim
14 words
A coating composition as claimed in claim 1, further comprising an organometallic catalyst (d).
Claim 4
Dependent Claim
17 words
A coating composition as claimed in claim 2, wherein the organometallic catalyst (d) is a tin compound.
Claim 5
Dependent Claim
51 words
A coating composition as claimed in claim 2, comprising the diorganopolysiloxanes (I) and (I') in an amount of 100 parts by weight, the cross-linking agent (c) in an amount of 3 to 200 parts by weight, and the organometallic catalyst (d) in an amount of 0.05 to 50 parts by weight.
Claim 6
Dependent Claim
14 words
A coating composition as claimed in claim 1, further comprising an organic solvent (e).
Claim 7
Dependent Claim
28 words
A coating composition as claimed in claim 5, wherein the concentration of the solute is from 5% to 50% by weight based on the weight of the composition.
Claim 8
Dependent Claim
43 words
A coating composition as claimed in claim 1, wherein the cross-linking agent is a compound represented by the following formula II, X.sub.m SiR.sub.4-m in which X and R are as defined in claim 1, and m is an integer of 3 to 4.
Claim 9
Dependent Claim
19 words
A coating composition as claimed in claim 7, wherein X is OCOCH 3 and m is 3 or 4.
Claim 10
Dependent Claim
29 words
A coating composition as claimed in claim 1, wherein the weight ratio of the diorganopolysiloxane (I) to the diorganopolysiloxane (I') is in a range of from 95/5 to 10/90.
Claim 11
Dependent Claim
14 words
A coating composition as claimed in claim 1, wherein X and X' are OH.
Claim 12
Dependent Claim
17 words
A coating composition as claimed in claim 1, wherein the diorganopolysiloxanes (I) and (I') are linear ones.
References Cited (Backward Citations)
US3364161A
Cited
US3647725A
Cited
US3865759A
Cited
US4218359A
Cited
US4147855A
Cited
US4191817A
Cited
US4257932A
Cited
US4410677A
Cited
US4229548A
Cited
US4419484A
Cited
US4356116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |