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US4233206A
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US
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Process for the production of colored polyolefin molded articles and colorants used therein
Assignee: Artience Co Ltd
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Filing: 1975-11-06
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Granted: 1980-11-11
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Expires: 1995-11-06
Abstract
Abstract A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D-CH2O.OC-R])n as a colorant wherein D is the residue of a common organic pigment, R is an alkyl, alkenyl or aryl group having up to 20 carbon atoms and n is an integer of 1-4, or a mixture of the compound of the above formula with at least one usual pigment, to form a mixture, and then molding the mixture thereby producing the desired colored articles. This invention also relates to the compound of said formula and to a mixture thereof with at least one common pigment.
Inventors
- 👤 Hiromitsu Katsura
- 👤 Morihiko Endo
- 👤 Takashi Kanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; Y; Y10; Y10S; Y10S534/00; Y10S534/03
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
94 words
A process for the production of a colored polyolefin molded article comprising adding at least one pigment to a polyolefin to form a mixture and molding the mixture in a mold to produce the colored polyolefin molded article, characterized by the fact that said pigment comprises a compound represented by the following general formula [I] D--CH.sub.2 O.OC--R].sub.n [I] wherein D is the residue of an organic pigment, R is a substituted or non-substituted alkyl, alkenyl or aryl group having up to 20 carbon atoms, and n is an integer of from 1 to 4.
Claim 2
Dependent Claim
94 words
A process for the production of a colored polyolefin molded article comprising adding at least one pigment to a polyolefin to form a mixture and molding the mixture in a mold to produce the colored polyolefin molded article, characterized by the fact that said pigment comprises a compound represented by the following general formula [I] D--CH.sub.2 O.OC--R].sub.n [I] wherein D is the residue of an organic pigment, R is a substituted or non-substituted alkyl, alkenyl or aryl group having up to 20 carbon atoms, and n is an integer of from 1 to 4.
Claim 3
Dependent Claim
22 words
A process according to claim 1, characterized by the fact that said pigment further comprises a common organic pigment and/or inorganic pigment.
Claim 4
Dependent Claim
21 words
A process according to claim 1, wherein the polyolefin is a member selected from the group consisting of polyethylenes and polypropylenes.
Claim 5
Dependent Claim
21 words
A process according to claim 2, wherein the polyolefin is a member selected from the group consisting of polyethylenes and polypropylenes.
Claim 6
Dependent Claim
28 words
A process according to claim 1, wherein D is a member selected from the group consisting of the residues of anthraquinone, polyazo, isoindolinone, perylene, quinacridone and phthalocyanine pigments.
Claim 7
Dependent Claim
28 words
A process according to claim 2, wherein D is a member selected from the group consisting of the residues of anthraquinone, polyazo, isoindolinone, perylene, quinacridone and phthalocyanine pigments.
Claim 8
Dependent Claim
28 words
A process according to claim 1, wherein R of the general formula is a substituted or non-substituted alkyl, alkenyl or aryl group having 4 to 20 carbon atoms.
Claim 9
Dependent Claim
28 words
A process according to claim 2, wherein R of the general formula is a substituted or non-substituted alkyl, alkenyl or aryl group having 4 to 20 carbon atoms.
Claim 10
Dependent Claim
62 words
A process according to claim 2, wherein the common organic pigment is a member selected from the group consisting of anthraquinone, polyazo, isoindolinone, perylene, quinacridone and phthalocyanine pigments, and the common inorganic pigment is a member selected from the group consisting of zinc oxide, titanium dioxide, chrome yellow, cadmium yellow, red iron oxide, molybdate orange, prussian blue, ultramarine blue and carbon black.
Claim 11
Dependent Claim
32 words
A process according to claim 2, wherein said at least one pigment is added to the polyolefin in amounts of 0.001-15 parts by weight per 100 parts by weight of the polyolefin.
Claim 12
Dependent Claim
33 words
A process according to claim 2, wherein said pigment comprises at least one part by weight of the compound of the general formula [I] per 100 parts by weight of the common pigment.
Claim 13
Dependent Claim
111 words
A process according to claim 1, wherein the compound of the general formula [I] is prepared by treating the organic pigment with paraformaldehyde in a strong acid to form a methylol compound represented by the formula D--CH 2 OH) n wherein D is the residue of the organic pigment and n is an integer of 1-4, and esterifying the thus-formed methylol compound with an acid of the formula RCOOH wherein R is a substituted or non-substituted alkyl, alkenyl or aryl group having up to 20 carbon atoms or with an acid chloride of the formula RCOCl wherein R is as defined above, thereby obtaining the compound of the general formula [I].
Claim 14
Dependent Claim
34 words
A process according to claim 12, wherein the acid is a member selected from the group consisting of butyric, caproic, capric, lauric, myristic, palmitic, stearic, oleic, linoleic, linoleinic, methylmyristic, benzoic and substituted benzoic acids.
Claim 15
Dependent Claim
69 words
A dimensionally stable, colored polyolefin molding composition comprising 100 parts by weight of a polyolefin and 0.001-15 parts by weight of a pigment represented by the following general formula (I) D--CH.sub.2 O.OC--R).sub.n (I) wherein D is the residue of a phthalocyanine pigment, R is a substituted or non-substituted alkyl, alkenyl or aryl group having up to 20 carbon atoms, and n is an integer of from 1 to 4.
Claim 16
Dependent Claim
69 words
A dimensionally stable, colored polyolefin molding composition comprising 100 parts by weight of a polyolefin and 0.001-15 parts by weight of a pigment represented by the following general formula (I) D--CH.sub.2 O.OC--R).sub.n (I) wherein D is the residue of a phthalocyanine pigment, R is a substituted or non-substituted alkyl, alkenyl or aryl group having up to 20 carbon atoms, and n is an integer of from 1 to 4.
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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |