US3770470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigmented resin compositions
Assignee: Montedison SpA
•
Filing: 1972-12-13
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Granted: 1973-11-06
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Expires: 1992-12-13
Abstract
Abstract This disclosure relates to the use of titanium dioxide coated with a boehmite-type alumina having an average crystallite size of at least about 50 angstroms as a pigment for thermoplastic resins.
Inventors
- 👤 T Swank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:24
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/3607; C09C1/3653; C09C1/3661; C08; C08K; C08K9/00; C08K9/02; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
27 words
A composition as defined in claim 1 wherein the pigment is present in amounts of from about 0.5 to about 20 percent by weight of the composition.
Claim 2
Dependent Claim
27 words
A compposition as defined in claim 1 wherein the pigment is present in amounts of from about 2 to about 10 percent by weight of the composition.
Claim 3
Dependent Claim
35 words
A composition as defined in claim 1 wherein the titanium dioXide is coated with an amount of from about 0.5 to about 10 percent of boehmite-type alumina based on the weight of the titanium dioxide.
Claim 4
Dependent Claim
35 words
A composition as defined in claim 1 wherein the titanium dioxide is coated with an amount of from about 1.5 to about 6 percent of boehmite-type alumina based on the weight of the titanium dioxide.
Claim 5
Dependent Claim
39 words
A composition as defined in claim 1 wherein the thermoplastic resin is a vinyl halide polymer selected from the group consisting of polymerized vinyl halide monomers and copolymers of such monomers with at least one dissimilar ethylenically unsaturated monomer.
Claim 6
Dependent Claim
25 words
A composition as defined in claim 1 wherein the thermoplastic resin is a cellulose ester of an organic acid having 2 to 4 carbon atoms.
Claim 7
Dependent Claim
49 words
A composition as defined in claim 1 wherein the thermoplastic resin is a polymer of an Alpha -monoolefin selected from the group consisting of homopolymers of Alpha -monoolefin monomers having from two to 10 carbon atoms and copolymers of such monomers with at least one dissimilar ethylenically unsaturated monomer.
Claim 8
Dependent Claim
41 words
A composition as defined in claim 1 wherein the thermoplastic resin is a monovinyl-substituted aromatic hydrocarbon polymer selected from the group consisting of polymerized monovinyl-substituted aromatic hydrocarbon monomers and copolymers of such monomers with at least one dissimilar ethylenically unsaturated monomer.
Claim 9
Dependent Claim
14 words
A composition as defined in claim 1 wherein the thermoplastic resin is polyvinyl chloride.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |