US4350531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing pastes with foam inhibitors
Assignee: BASF SE
•
Filing: 1981-09-01
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Granted: 1982-09-21
•
Expires: 2001-09-01
Abstract
Abstract The subject invention relates to the use of foam inhibitors in printing pastes based on oil-in-water emulsions or aqueous emulsions. The foam inhibitors are mixtures of monoalkyphosphates and aliphatic esters or high boiling hydrocarbons.
Inventors
- 👤 Harry Distler
- 👤 Rudi Widder
- 👤 Guenter Uhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:47
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D7/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
In a printing paste composition containing a binder, water, a thickener, a foam inhibitor, and other optional ingredients, the improvement which comprises using as the foam inhibitor from 0.05 to 5 percent by weight, relative to the total weight of the printing paste, of a mixture comprising (a) a liquid solution of 0.1 to 50 percent by weight, relative to the weight of the foam inhibitor, of a monoalkyl phosphate having 10 to 20 carbon atoms; and (b) from 50 to 99.9 percent by weight, relative to the weight of the foam inhibitor, of a compound selected from the group consisting of aliphatic esters having a molecular weight of 200 to 800, aliphatic hydrocarbons having a boiling point above 100° C., and mixtures thereof.
Claim 2
Dependent Claim
124 words
In a printing paste composition containing a binder, water, a thickener, a foam inhibitor, and other optional ingredients, the improvement which comprises using as the foam inhibitor from 0.05 to 5 percent by weight, relative to the total weight of the printing paste, of a mixture comprising (a) a liquid solution of 0.1 to 50 percent by weight, relative to the weight of the foam inhibitor, of a monoalkyl phosphate having 10 to 20 carbon atoms; and (b) from 50 to 99.9 percent by weight, relative to the weight of the foam inhibitor, of a compound selected from the group consisting of aliphatic esters having a molecular weight of 200 to 800, aliphatic hydrocarbons having a boiling point above 100° C., and mixtures thereof.
Claim 3
Dependent Claim
12 words
The printing paste of claim 1 wherein component (a) is monostearyl phosphate.
Claim 4
Dependent Claim
40 words
The printing paste of claim 2 wherein component (b) is selected from the group consisting of paraffin oil having a boiling point of 190° C. to 250° C., citric acid tri-i-nonyl ester, oleic acid i-decyl ester, and 2-ethylhexanoic acid-2-ethylhexyl ester.
Claim 5
Dependent Claim
40 words
The printing paste of claim 1 wherein the amount of component (a) used is from 1 to 20 percent by weight and the number of carbon atoms in the alkyl radical of the monoalkyl phosphate is from 16 to 18.
Claim 6
Dependent Claim
28 words
The printing paste of claim 4 wherein the amount of component (b) is from 80 to 99 percent by weight, relative to the weight of the foam inhibitor.
Claim 7
Dependent Claim
23 words
The printing paste of claim 5 wherein an aliphatic ester having a molecular weight of 300 to 600 is used as component (b).
Claim 8
Dependent Claim
22 words
The printing paste of claim 5 wherein an aliphatic hydrocarbon having a boiling point above 120° C. is used as component (b).
Claim 9
Dependent Claim
30 words
The printing paste of claim 1 wherein the total amount of foam inhibitor used is from 0.1 to 0.5 weight percent, relative to the total weight of the printing paste.
References Cited (Backward Citations)
CH561322A5
Cited
US4083907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |