US5095056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,9-dichloroquinacridone-pigmented engineering plastics and coatings
Assignee: BASF Corp
•
Filing: 1991-01-14
•
Granted: 1992-03-10
•
Expires: 2011-01-14
Abstract
Abstract The use of 2,9-dichloroquinacridone having a surface area below 30 m 2 /g as a pigment in engineering plastics and coating wherein said pigment exhibits outstanding heat stability and a unique red color in the resulting pigmented system.
Inventors
- 👤 Fridolin Babler
- 👤 Edward E. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437; C09; C09B; C09B48/00; C09B67/00; C09B67/0001; C09B67/0014; C09D; C09D7/00; C09D7/40; C09D7/41
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
34 words
A process for pigmenting engineering plastic substrates and coatings comprising incorporating an effective pigmenting amount of 2,9-dichloroquinacridone having a specific surface area of below 30 m 2 /g into said engineering plastic or coating.
Claim 2
Dependent Claim
34 words
A process for pigmenting engineering plastic substrates and coatings comprising incorporating an effective pigmenting amount of 2,9-dichloroquinacridone having a specific surface area of below 30 m 2 /g into said engineering plastic or coating.
Claim 3
Dependent Claim
20 words
The process of claim 1, wherein during said incorporation, said engineering plastic or coating is subjected to mechanical shear forces.
Claim 4
Dependent Claim
16 words
The process of claim 1, wherein said specific surface area ranges from 4-25 m 2 /g.
Claim 5
Dependent Claim
9 words
The process of claim 1 which utilizes crude 2,9-dichloroquinacridone.
Claim 6
Dependent Claim
26 words
The process of claim 1, wherein said 2,9-dichloroquinacridone is treated with a polar solvent at elevated temperatures prior to incorporation into said engineering plastic or coating.
Claim 7
Dependent Claim
56 words
The process of claim 1, wherein said engineering plastic is selected from the group consisting of cellulose ethers, cellulose esters, polyurethanes, polyesters, polycarbonates, polyolefins, polystyrene, polysulfones, polyamides, polycycloamides, polyimides, polyethers, polyether ketones, polyvinyl halides, polytetrafluoroethylene, acrylic and methacrylic polymers, rubber, silicone polymers, phenol/formaldehyde resins, melamine/formaldehyde resins, urea/formaldehyde resins, epoxy resins and diene rubbers and copolymers thereof.
Claim 8
Dependent Claim
18 words
The process of claim 1, wherein said 2,9-dichloroquinacridone is present in a concentration of from 0.1-30%, by weight.
Claim 9
Dependent Claim
37 words
The process of claim 1, wherein the resin component of said coatings is selected from the group consisting of acrylic, alkyd, epoxy, phenolic, melamine, urea, polyester, polyurethane, blocked isocyanate, benzoguanamine and cellulose ester resins, and mixtures thereof.
Claim 10
Dependent Claim
26 words
A composition comprising a high molecular weight organic material and 0.1-30%, by weight, of 2,9-dichloroquinacridone having a specific surface area lower than 30 m 2 /g.
Claim 11
Dependent Claim
26 words
A composition comprising a high molecular weight organic material and 0.1-30%, by weight, of 2,9-dichloroquinacridone having a specific surface area lower than 30 m 2 /g.
Claim 12
Dependent Claim
16 words
The composition of claim 9, wherein said specific surface area ranges from 4-25 m 2 /g.
Claim 13
Dependent Claim
9 words
The composition of claim 9 which utilizes crude 2,9-dichloroquinacridone.
Claim 14
Dependent Claim
26 words
The composition of claim 9, wherein said 2,9-dichloroquinacridone is treated with a polar solvent at elevated temperatures prior to incorporation in said engineering plastic or coating.
Claim 15
Dependent Claim
56 words
The composition of claim 9, wherein said engineering plastic is selected from the group consisting of cellulose ethers, cellulose esters, polyurethanes, polyesters, polycarbonates, polyolefins, polystyrene, polysulfones, polyamides, polycycloamides, polyimides, polyethers, polyether ketones, polyvinyl halides, polytetrafluoroethylene, acrylic and methacrylic polymers, rubber, silicone polymers, phenol/formaldehyde resins, melamine/formaldehyde resins, urea/formaldehyde resins, epoxy resins and diene rubbers and copolymers thereof.
Claim 16
Dependent Claim
37 words
The composition of claim 9, wherein the resin component of said coatings is selected from the group consisting of acrylic, alkyd, epoxy, phenolic, melamine, urea, polyester, polyurethane, blocked isocyanate, benzoguanamine and cellulose ester resins, and mixtures thereof.
References Cited (Backward Citations)
US3157659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-10 | 1995-09-09 | 1996-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-10 | 1999-09-09 | 2000-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-10 | 2003-09-09 | 2004-03-10 | $7700.00 | Window Closed / Lapsed |