US4325862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid pigment compositions containing C4 -C6 methacrylate-amino acrylate copolymers
Assignee: Sandoz AG
•
Filing: 1980-06-02
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Granted: 1982-04-20
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Expires: 2000-06-02
Abstract
Abstract A solid pigment composition comprises an intimate mixture of a pigment and a copolymer of an alkyl or cycloalkyl methacrylate ester and a lesser amount of an aminoalkyl methacrylate ester. The compositions are compatible with a wide range of substrates such as paints, printing inks and bulk polymers.
Inventors
- 👤 Johann Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C09; C09B; C09B67/00; C09B67/006; C09B67/0063; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09D17/00; D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/525; D06P1/5257; C08J2433/00
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
126 words
A solid pigment composition comprising an intimate mixture of a pigment and a preformed copolymer of a compound of formula I ##STR3## in which R is C 4-6 alkyl or C 4-6 cycloalkyl, a lesser amount of a compound of formula II ##STR4## in which R 1 is hydrogen or methyl, R 2 is hydrogen or C 1-6 alkyl R 3 is C 1-6 alkyl or R 2 and R 3 together with the nitrogen atom to which they are attached form a heterocyclic 5- or 6-membered ring which may contain an oxygen or a further nitrogen atom and A is a straight or branched chain C 2-6 alkylene group, and 0 to 10%, by weight, of comonomer other than compounds of formulae I and II.
Claim 2
Dependent Claim
126 words
A solid pigment composition comprising an intimate mixture of a pigment and a preformed copolymer of a compound of formula I ##STR3## in which R is C 4-6 alkyl or C 4-6 cycloalkyl, a lesser amount of a compound of formula II ##STR4## in which R 1 is hydrogen or methyl, R 2 is hydrogen or C 1-6 alkyl R 3 is C 1-6 alkyl or R 2 and R 3 together with the nitrogen atom to which they are attached form a heterocyclic 5- or 6-membered ring which may contain an oxygen or a further nitrogen atom and A is a straight or branched chain C 2-6 alkylene group, and 0 to 10%, by weight, of comonomer other than compounds of formulae I and II.
Claim 3
Dependent Claim
16 words
A composition according to claim 1 in which R in formula I is butyl or cyclohexyl.
Claim 4
Dependent Claim
58 words
A composition according to claim 1 in which, in formula II, R 1 is methyl; R 2 and R 3 are each methyl or together with the nitrogen atom to which they are attached, form a morpholine or piperidine ring, and A is --CH 2 --CH 2 -- or --CH 2 --C(CH 3 ) 2 --CH 2 --.
Claim 5
Dependent Claim
19 words
A composition according to claim 3 in which the copolymer is a copolymer of isobutyl methacrylate and 2-dimethylaminoethyl methacrylate.
Claim 6
Dependent Claim
39 words
A composition according to claim 1 in which the copolymer has a reduced viscosity, as herein defined, of 5-25 ml/g, an average molecular weight of 10,000 to 80,000 and a T max temperature, as herein defined, above 45° C.
Claim 7
Dependent Claim
37 words
A composition according to claim 1 in which the copolymer is based on isobutyl methacrylate and has a molecular weight of 15,000 to 25,000, a melting point range of 80°-120° C. and an acid number of 0.
Claim 8
Dependent Claim
23 words
A composition according to claim 1 in which the copolymer contains from 1 to 10% by weight of the compound of formula II.
Claim 9
Dependent Claim
12 words
A composition according to claim 1 containing 30-60% by weight of pigment.
Claim 10
Dependent Claim
27 words
A process for the colouration of paints, printing inks and bulk polymers comprising the step of mixing the substrate with a pigment composition according to claim 1.
Claim 11
Dependent Claim
14 words
A paint, printing ink or bulk polymer coloured by the process of claim 9.
Claim 12
Dependent Claim
18 words
A composition according to claim 3 wherein R in the compound of formula I is butyl or cyclohexyl.
Claim 13
Dependent Claim
33 words
A composition according to claim 1 in which the copolymer has a molecular weight of 15,000 to 25,000, a melting point range of 80° to 120° C. and an acid number of 0.
Claim 14
Dependent Claim
39 words
A composition according to claim 11 in which the copolymer has a reduced viscosity, as herein defined, of 5-25 ml/g, and average molecular weight of 10,000 to 80,000 and a T max temperature, as herein defined, above 45° C.
Claim 15
Dependent Claim
23 words
A composition according to claim 5 in which the weight percentage of comonomer of formula II in the copolymer is 1 to 10%.
Claim 16
Dependent Claim
23 words
A composition according to claim 11 in which the weight percentage of comonomer of formula II in the copolymer is 1 to 10%.
Claim 17
Dependent Claim
19 words
A composition according to claim 5 in which the copolymer is a copolymer of isobutyl methacrylate and 2-dimethylaminoethyl methacrylate.
Claim 18
Dependent Claim
19 words
A composition according to claim 12 in which the copolymer is a copolymer of isobutyl methacrylate and 2-dimethylaminoethyl methacrylate.
Claim 19
Dependent Claim
19 words
A composition according to claim 14 in which the copolymer is a copolymer of isobutyl methacrylate and 2-dimethylaminoethyl methacrylate.
Claim 20
Dependent Claim
14 words
A composition according to claim 11 containing 30 to 60% by weight of pigment.
Claim 21
Dependent Claim
14 words
A composition according to claim 12 containing 30 to 60% by weight of pigment.
Claim 22
Dependent Claim
14 words
A composition according to claim 14 containing 30 to 60% by weight of pigment.
Claim 23
Dependent Claim
14 words
A composition according to claim 18 containing 30 to 60% by weight of pigment.
Claim 24
Dependent Claim
33 words
A composition according to claim 1 wherein the pigment is titanium dioxide, iron oxide, chromium oxide, lead chromate, or an azo, bisazo, phthalocyanine, naphthol As, benzidine, isoindolinone, quinacridone, dioxazine, thioindigo or perylene compound.
Claim 25
Dependent Claim
33 words
A composition according to claim 22 wherein the pigment is titanium dioxide, iron oxide, chromium oxide, lead chromate, or an azo, bisazo, phthalocyanine, naphthol As, benzidine, isoindolinone, quinacridone, dioxazine, thioindigo or perylene compound.
Claim 26
Dependent Claim
30 words
A composition according to claims 1, 4, 7, 8, 11, 13, 15, 17 or 19 in which the copolymer is a copolymer of only compounds of formulae I and II.
Claim 27
Dependent Claim
21 words
A composition according to claims 1, 4, 7, 11, 15 or 23 containing from 10 to 95% by weight of pigment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |