US4462833A
Expired / Lapsed
US
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Process for treating diarylide yellow pigment
Assignee: BASF Corp
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Filing: 1982-12-27
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Granted: 1984-07-31
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Expires: 2002-12-27
Abstract
Abstract Diarylide yellow pigments are treated with linear alkyl poly-amines to obtain pigments that are easily dispersible in aromatic publication gravure inks and show less penetration into and higher gloss on uncoated paper stock.
Inventors
- 👤 Byron G. Hays
- 👤 Philip L. Maguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:53
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09B; C09B67/00; C09B67/0001; C09B67/0004; C09B67/0008; C09B67/0013; C09B67/002; C09B68/00; C09B68/20; C09B68/40; C09B68/41; C09B68/44; C09B68/443; C09B68/446
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
83 words
A diarylide yellow pigment composition in which the diarylide yellow pigment has been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine having the formula R--NH--CH.sub.2 --CH.sub.2 --CH.sub.2 --.sub.n NH.sub.2 wherein R is a saturated or unsaturated alkyl group having at least 12 carbon atoms and n is at least 3, thereby producing such treated pigments which are easily dispersible in inks and show less penetration into and higher gloss on uncoated paper stock.
Claim 2
Dependent Claim
83 words
A diarylide yellow pigment composition in which the diarylide yellow pigment has been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine having the formula R--NH--CH.sub.2 --CH.sub.2 --CH.sub.2 --.sub.n NH.sub.2 wherein R is a saturated or unsaturated alkyl group having at least 12 carbon atoms and n is at least 3, thereby producing such treated pigments which are easily dispersible in inks and show less penetration into and higher gloss on uncoated paper stock.
Claim 3
Dependent Claim
28 words
The piegment composition as recited in claim 1 wherein the diarylide yellow pigment is contacted with about 5%-45% of said polyamine based upon the weight of the pigment.
Claim 4
Dependent Claim
37 words
The pigment composition of claim 1 which additionally contains untreated diarylide yellow pigment in a ratio of about 1 part by weight of said treated pigment composition to about 5 parts by weight of said untreated pigment.
Claim 5
Dependent Claim
62 words
A diarylide yellow pigment composition in which the diarylide yellow pigment has been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine comprising 1, 3 propanediamine, N-(3-amino propane)- N'-(N-tallow alkyl-3-aminopropane), thereby producing such treated pigments which are easily dispersible in inks and show less penetration into and higher gloss on uncoated paper stock.
Claim 6
Dependent Claim
62 words
A diarylide yellow pigment composition in which the diarylide yellow pigment has been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine comprising 1, 3 propanediamine, N-(3-amino propane)- N'-(N-tallow alkyl-3-aminopropane), thereby producing such treated pigments which are easily dispersible in inks and show less penetration into and higher gloss on uncoated paper stock.
Claim 7
Dependent Claim
28 words
The pigment composition as recited in claim 4 wherein the diarylide yellow pigment is contacted with about 5%-45% of said polyamine, based upon the weight of the pigment.
Claim 8
Dependent Claim
36 words
The pigment composition of claim 4 further comprising untreated diarylide yellow pigment in a ratio of about 1 part by weight of said treated pigment composition to about 5 parts by weight of said untreated pigment.
Claim 9
Dependent Claim
79 words
A printing ink containing a diarylide yellow pigment, composition, said pigment composition having been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine having the formula R --NH--CH.sub.2 --CH.sub.2 --CH.sub.2 --.sub.n NH.sub.2 wherein R is a saturated or unsaturated alkyl group having at least 12 carbon atoms and n is at least 3, thereby producing such improved ink which shows less penetration into and higher gloss on uncoated paper stock.
Claim 10
Dependent Claim
79 words
A printing ink containing a diarylide yellow pigment, composition, said pigment composition having been treated with a polyamine, wherein the improvement comprises: using as the polyamine a linear alkyl polyamine, said polyamine having the formula R --NH--CH.sub.2 --CH.sub.2 --CH.sub.2 --.sub.n NH.sub.2 wherein R is a saturated or unsaturated alkyl group having at least 12 carbon atoms and n is at least 3, thereby producing such improved ink which shows less penetration into and higher gloss on uncoated paper stock.
Claim 11
Dependent Claim
18 words
The printing ink of claim 7 wherein the linear alkyl polyamine is 1, 3 propanediamine, N-(3-amino propane)-N'-(N-tallow alkyl-3-aminopropane).
Claim 12
Dependent Claim
13 words
The printing ink of claim 7 wherein the ink contains an aromatic solvent.
Claim 13
Dependent Claim
12 words
The printing ink of claim 7 which additionally contains untreated diarylide pigment.
Claim 14
Dependent Claim
29 words
The printing ink of claim 10 wherein the ratio of treated diarylide yellow pigment composition to untreated diarylide yellow pigment is about 1 part to 5 parts by weight.
Claim 15
Dependent Claim
13 words
The printing ink of claim 10 wherein the ink contains an aromatic solvent.
Claim 16
Dependent Claim
13 words
The printing ink of claim 11 wherein the ink contains an aromatic solvent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |