Patent EP0146168A2 successfully refreshed from Google Patents.
EP0146168A2
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EP
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Compositions of polyphenylene oxide or of mixtures of polyphenylene oxide with a styrene polymer
Assignee: Enichem SpA
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Filing: 1984-11-26
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Granted: —
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Expires: 2004-11-26
Abstract
Abstract Thermally stable compositions, also showing high fluidity in the molten state comprise polyphenylene oxide, or a mixture of polyphenylene oxide with a styrene polymer, and a stabilizer system consisting of 2,4-bis-(n-octylthio)-6-(4-hydroxy-3,5-di-tert. butylanilino)-1,3,5-triazine and dilauryl thiopropanoate.
Inventors
- 👤 Wanda Kosinska
- 👤 Dorota Grzelak
- 👤 Irena Penczek
- 👤 Jan Bialy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 11:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; C08K5/378
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
Thermally stable compositions, also showing char acteristics of high fluidity in the molten state, comprising polyphenylene oxide, or blends of polyphenylene oxide with a styrene polymer, and a stabilizer system consisting of 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di- tert.butylanilino)-1,3,5-triazine and dilauryl thiopropanoate, said components of the stabilizer system being each present in a quantity of from 0,1 to 3 parts by weight per 100 parts by weight of polymer or of polymer blend.
Claim 2
Dependent Claim
68 words
Thermally stable compositions, also showing char acteristics of high fluidity in the molten state, comprising polyphenylene oxide, or blends of polyphenylene oxide with a styrene polymer, and a stabilizer system consisting of 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di- tert.butylanilino)-1,3,5-triazine and dilauryl thiopropanoate, said components of the stabilizer system being each present in a quantity of from 0,1 to 3 parts by weight per 100 parts by weight of polymer or of polymer blend.
Claim 3
Dependent Claim
90 words
Compositions as claimed in claim 1, characterized in that said polymer of styrene is selected from homopol ymers of styrene and of a-methylstyrene, and the copoly mers of such monomers with each other or with monomers selected from acrylonitrile, methacrylonitrile, acrylic and methacrylic esters, or from the polymers obtained by grafting of styrene, alone or together with other monomers selected from those listed above, on a diene base rubber, or from mixtures of polystyrene with elasto mers, the polystyrene component of said mixtures being the main component of such mixtures.
Claim 4
Dependent Claim
37 words
Compositions as claimed in claim 1, characterized in that in the polymer blend polyphenylene oxide is present in a quantity of from 1 to 99 parts by weight per 100 parts by weight of the same blend.
Claim 5
Dependent Claim
39 words
Compositions as claimed in claim 1, characterized in that the 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di- tert.butylanilino)-1,3,5-triazine and the dilauryl thio propanoate are in quantities of the order of 0,5 parts by weight per 100 parts by weight of polymer or of polymer blend.
Claim 6
Dependent Claim
35 words
Compositions as claimed in claim 1, characterized in that the weight ratio of the 2,4-bis(n-octylthio)-6-(4-hydroxy-3s5-di-tert.butylanilino)-1,3,5-triazine to the dilauryl thiopropanoate is comprised within the range of values of from 0,1 : 1 to 2 : 1.
Claim 7
Dependent Claim
18 words
Compositions as claimed in claim 5, characterized in that said weight ratio is of the order of 1:1.
References Cited (Backward Citations)
No citation records indexed.
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