US4487855A
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Colored latexes; methods for making same and colored finely divided products
Assignee: Individual
•
Filing: 1983-02-15
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Granted: 1984-12-11
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Expires: 2003-02-15
Abstract
Abstract The present invention relates to colored latex products, and especially to colored synthetic polymer emulsions, the finely divided colored polymers obtainable therefrom, and methods for making the colored polymer emulsions as well as the polymers as colored, finely divided solids.
Inventors
- 👤 Yen-Jer Shih
- 👤 Mohamed S. El-Aasser
- 👤 John W. Vanderhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:18
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
67 words
A colored polymer produced by reacting a compound (A), which is capable of coupling to an aromatic diazonium compound (B), with a polymer (C) suspended in aqueous latex form and containing a reactive halogen group capable of reacting with said compound (A) and thereafter coupling the resulting reaction product in said latex to said aromatic diazonium compound (B) to produce said colored polymer containing an azo chromophore.
Claim 2
Dependent Claim
67 words
A colored polymer produced by reacting a compound (A), which is capable of coupling to an aromatic diazonium compound (B), with a polymer (C) suspended in aqueous latex form and containing a reactive halogen group capable of reacting with said compound (A) and thereafter coupling the resulting reaction product in said latex to said aromatic diazonium compound (B) to produce said colored polymer containing an azo chromophore.
Claim 3
Dependent Claim
25 words
A colored polymer as defined in claim 1 wherein polymer (C) comprises the polymerizate of an αβ-etheylenically unsaturated monomer (D) containing said reactive halogen group.
Claim 4
Dependent Claim
15 words
A colored polymer as defined in claim 2 wherein comppound (A) is an aromatic amine.
Claim 5
Dependent Claim
15 words
A colored polymer as defined in claim 2 wherein said reactive halogen group is chloroalkyl.
Claim 6
Dependent Claim
13 words
A colored polymer as defined in claim 4 wherein said chloroalkyl is chloromethyl.
Claim 7
Dependent Claim
13 words
A colored polymer as defined in claim 4 wherein said chloroalkyl is chloroethyl.
Claim 8
Dependent Claim
25 words
A colored polymer as defined in claim 2 wherein said reactive halogen group is linked to a carbon atom olefinically linked to another carbon atom.
Claim 9
Dependent Claim
20 words
A colored polymer as defined in claim 3 wherein monomer (D) is p-vinylbenzyl chloride and compound (A) is an N-alkylaniline.
Claim 10
Dependent Claim
25 words
A colored polymer as defined in claim 8 wherein compound (A) is N-methylaniline and compound (B) is the diazonium salt of sulfanilic acid or p-nitroaniline.
Claim 11
Dependent Claim
31 words
A colored polymer as defined in claim 3 wherein polymer (C) comprises the polymerizate of a mixture (M) of αβ-ethylenically unsaturated monomers at least about 5 mole% thereof being monomer (D).
Claim 12
Dependent Claim
17 words
A colored polymer as defined in claim 10 wherein said mixture (M) includes about 5-95 mole% styrene.
Claim 13
Dependent Claim
24 words
A colored polymer as defined in claim 11 wherein monomer (D) is p-vinylbenzylchloride, compound (B) is the diazonium salt of sulfanilic acid or p-nitroaniline.
Claim 14
Dependent Claim
28 words
A colored polymer as defined in claim 1 wherein said polymer (C) is in the form of a shell surrounding a core of a polymerized αβ-ethylenically unsaturated compound.
Claim 15
Dependent Claim
28 words
A colored polymer as defined in claim 10 wherein said polymer (C) is in the form of surface layer on a core of a polymerized αβ-ethylenically unsaturated compound.
Claim 16
Dependent Claim
17 words
A colored polymer as defined in claim 14 in latex form and wherein the core comprises polystyrene.
Claim 17
Dependent Claim
29 words
A colored polymer as defined in claim 15 where the polystyrene latex is a monodisperse or polydisperse system wherein D w /D n ranges from 1.001 to about 5.
Claim 18
Dependent Claim
26 words
A colored polymer as defined in claim 16 wherein the polystyrene latex is a monodispersed latex wherein D w /D n is less than about 1.05.
Claim 19
Dependent Claim
20 words
A colored polymer as defined in claim 3 wherein compound (B) is a protein containing a diazotizable primary amino group.
Claim 20
Independent Claim
71 words
A method for preparing a colored polymeric product which comprises reacting in an aqueous medium finely divided polymer containing a reactive halogen group with a compound (A) containing a group reactive with said reactive group-containing polymer to produce a modified polymer capable of coupling to an aromatic diazonium compound, and coupling said modified polymer in said aqueous medium to said diazonium compound to produce a colored polymer containing an azo chromophore.
Claim 21
Independent Claim
71 words
A method for preparing a colored polymeric product which comprises reacting in an aqueous medium finely divided polymer containing a reactive halogen group with a compound (A) containing a group reactive with said reactive group-containing polymer to produce a modified polymer capable of coupling to an aromatic diazonium compound, and coupling said modified polymer in said aqueous medium to said diazonium compound to produce a colored polymer containing an azo chromophore.
Claim 22
Dependent Claim
30 words
A method as defined in claim 19 wherein the polymer contains a reactive chloromethyl group, and compound (A) is an aromatic amine capable of coupling to an aromatic diazonium compound.
Claim 23
Dependent Claim
35 words
A method as defined in claim 20 including the step of producing said finely divided polymer-containing aqueous medium by subjecting to polymerization conditions an aqueous emulsion containing a polymerizable monomer containing a reactive chloromethyl group.
Claim 24
Dependent Claim
20 words
A method as defined in claim 21 wherein said aqueous emulsion comprises a latex of a polymerized αβ-ethylenically unsaturated monomer.
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |