US3844810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment dispersion
Assignee: PLASTIC MOLDERS SUPPLY CO
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Filing: 1972-11-28
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Granted: 1974-10-29
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Expires: 1992-11-28
Abstract
Abstract Fatty acid amide coated pigments are obtained and used to formulate with uncolored thermoplastic materials. The colors of the pigments are fully developed and extremely high pigment loadings are obtained. The coated pigments are formed by admixing the pigment with melted fatty acid amide; solidifying the material by cooling it; grinding the material; and separating out the fines. The coated pigments particles are compounded with thermoplastic materials by low shear means, such as, injection molding. An improved form of the coated pigments can be obtained by admixing the melted fatty acid amide, and the pigment; extruding the admixture to form a creamy mass; solidifying and forming the creamy mass by passing it through cold and forming rollers; grinding the resultant wafer-like material; and separating out the fines.
Inventors
- 👤 E Pollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:52
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C09C; C09C3/00; C09C3/08; C01; C01P; C01P2004/00; C01P2004/10; C01P2004/12; C01P2004/20; C01P2004/30; C01P2004/32; C01P2004/38; C01P2004/50; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
96 words
A PIGMENT COMPOSITION FOR USE IN MOLDED THERMOPLASTIC AND THERMOSET ARTICLES WHICH IS COMPRISED OF PIGMENT PARTICLES WHICH ARE SUBSTANTIALLY ENCAPULATED AND COATED BY A FATTY ACID AMIDE, SAID PIGMENT PARTICLES BEING IN A SUBSTANTIALLY UNAGGLOMERATED STATE, SAID COMPOSITION CONTAINING FROM ABOUT 10 TO ABOUT 90 PERCENT BY WEIGHT OF SAID FATTY ACID AMIDE, BASED UPON THE WEIGHT OF SAID FATTY ACID AMIDE AND SAID PIGMENT, SAID COMPOSITION BEING SOLID AT ROOM TEMPERATURE, SAID FATTY ACID AMIDE BEING SOLID AT ROOM TEMPERATURE AND SAID FATTY ACID AMIDE CONTAINING NO SUBSTITUENT EXCEPT ONE OR MORE HYDROXYL GROUP.
Claim 2
Dependent Claim
96 words
A PIGMENT COMPOSITION FOR USE IN MOLDED THERMOPLASTIC AND THERMOSET ARTICLES WHICH IS COMPRISED OF PIGMENT PARTICLES WHICH ARE SUBSTANTIALLY ENCAPULATED AND COATED BY A FATTY ACID AMIDE, SAID PIGMENT PARTICLES BEING IN A SUBSTANTIALLY UNAGGLOMERATED STATE, SAID COMPOSITION CONTAINING FROM ABOUT 10 TO ABOUT 90 PERCENT BY WEIGHT OF SAID FATTY ACID AMIDE, BASED UPON THE WEIGHT OF SAID FATTY ACID AMIDE AND SAID PIGMENT, SAID COMPOSITION BEING SOLID AT ROOM TEMPERATURE, SAID FATTY ACID AMIDE BEING SOLID AT ROOM TEMPERATURE AND SAID FATTY ACID AMIDE CONTAINING NO SUBSTITUENT EXCEPT ONE OR MORE HYDROXYL GROUP.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein said pigment is an inorganic pigment.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein said pigment is an organic pigment.
Claim 5
Dependent Claim
21 words
The composition of claim 1 wherein said pigment particle has a mean particle size between about 0.1 and about 100 microns.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein said pigment is cadmium sulfide yellow.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein said fatty acid amide is hydroxystearic acid ethylene diamide.
Claim 8
Dependent Claim
36 words
The composition of claim 1 wherein the fatty acid radical in said fatty acid amide contains 1 to 36 carbon atoms and the amine radical in said fatty acid amide contains 1 to 36 carbon atoms.
Claim 9
Dependent Claim
26 words
The composition which comprises a bar of solid fatty acid amide and unagglomerated pigment particles, said pigment particles being substantially encapsulated by said fatty acid amide.
Claim 10
Dependent Claim
26 words
The composition which comprises a bar of solid fatty acid amide and unagglomerated pigment particles, said pigment particles being substantially encapsulated by said fatty acid amide.
Claim 11
Dependent Claim
10 words
The composition of claim 7 wherein said composition is solid.
Claim 12
Dependent Claim
15 words
The composition of claim 8 wherein said pigment particles are in a substantially unagglomerated state.
Claim 13
Dependent Claim
12 words
The composition of claim 10 wherein said pigment particles have been micro-pulverized.
Claim 14
Dependent Claim
12 words
The composition of claim 1 wherein said pigment particles have been micro-pulverized.
Claim 15
Dependent Claim
30 words
The composition of claim 1 which contains 25 to 70 percent by weight of said fatty acid amide, based upon the weight of said fatty acid amide and said pigment.
Claim 16
Dependent Claim
109 words
A pigment composition for use in molded thermoplastic and thermoset articles which consists of at least one pigment in particle form and at least one fatty acid amide, said pigment particles being substantially encapsulated and coated by said solid fatty acid amide, said pigment particles being in a substantially unagglomerated state, said fatty acid amide being solid at room temperature, said fatty acid amide containing no substituents except one or more hydroxyl group, said composition containing about 10 to about 90 percent by weight of said fatty acid amide, based upon the weight of said fatty acid amide and said pigment, and said composition being solid at room temperature.
Claim 17
Dependent Claim
109 words
A pigment composition for use in molded thermoplastic and thermoset articles which consists of at least one pigment in particle form and at least one fatty acid amide, said pigment particles being substantially encapsulated and coated by said solid fatty acid amide, said pigment particles being in a substantially unagglomerated state, said fatty acid amide being solid at room temperature, said fatty acid amide containing no substituents except one or more hydroxyl group, said composition containing about 10 to about 90 percent by weight of said fatty acid amide, based upon the weight of said fatty acid amide and said pigment, and said composition being solid at room temperature.
Claim 18
Dependent Claim
12 words
The composition of claim 14 wherein said pigment is an inorganic pigment.
Claim 19
Dependent Claim
12 words
The composition of claim 14 wherein said pigment is an organic pigment.
Claim 20
Dependent Claim
21 words
The composition of claim 14 wherein said pigment particles has a mean particle size between about 0.1 and about 100 microns.
Claim 21
Dependent Claim
30 words
The composition of claim 14 which contains 25 to 75 percent by weight of said fatty acid amide, based upon the weight of said pigment and said fatty acid amide.
Claim 22
Dependent Claim
36 words
The composition of claim 14 wherein the fatty acid radical in said fatty acid amide contains 1 to 36 carbon atoms and the amine radial in said fatty acid amide contains 1 to 36 carbon atoms.
Claim 23
Dependent Claim
23 words
The composition which is comprised of a fluid admixture of a fatty acid amide which is liquid at room temperature and pigment particles.
Claim 24
Dependent Claim
23 words
The composition which is comprised of a fluid admixture of a fatty acid amide which is liquid at room temperature and pigment particles.
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GB1046724A
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US3728143A
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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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |