Patent US4760115A successfully refreshed from Google Patents.
US4760115A
Expired / Lapsed
US
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High impact thermoplastic molding material based on modified polyphenylene ethers, polyoctenylenes and polyamides
Assignee: Huels AG
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Filing: 1987-03-30
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Granted: 1988-07-26
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Expires: 2007-03-30
Abstract
Abstract The invention relates to thermoplastic materials having the following components: (a) 5-85 parts by weight of a melted or remelted preforming material comprising (i) 60-98 parts by weight of a polyphenylene ether, (ii) 40-2 parts by weight of a polyoctenylene, and (iii) 1-7.5 parts by weight of bicyclo [2.2.2]-2,3:5,6-dibenzooctadiene-2,5-dicarboxylic acid-7,8-anhydride, and (b) 95-15 parts by weight of a polyamide comprising an aliphatic homopolyamide or a copolyamide and optionally (c) polystyrene resins, flame protection agents, and other additives, and to a method for their manufacture.
Inventors
- 👤 Michael Droescher
- 👤 Hans Jadamus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:44
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08L77/00; C08L65/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
57 words
A thermoplastic material, comprising: (a) 5-85 parts by weight of a melted preforming material comprising (i) 60-98 parts by weight of a polyphenylene ether, (ii) 40-2 parts by weight of a polyoctenylene, and (iii) 1-7.5 parts by weight of bicyclo[2.2.2]-2,3:5,6-dibenzooctadiene-2,5-dicarboxylic acid-7,8-anhydride, and (b) 95-15 parts by weight of a polyamide comprising an aliphatic homopolyamide or a copolyamide.
Claim 2
Dependent Claim
57 words
A thermoplastic material, comprising: (a) 5-85 parts by weight of a melted preforming material comprising (i) 60-98 parts by weight of a polyphenylene ether, (ii) 40-2 parts by weight of a polyoctenylene, and (iii) 1-7.5 parts by weight of bicyclo[2.2.2]-2,3:5,6-dibenzooctadiene-2,5-dicarboxylic acid-7,8-anhydride, and (b) 95-15 parts by weight of a polyamide comprising an aliphatic homopolyamide or a copolyamide.
Claim 3
Dependent Claim
32 words
The thermoplastic material of claim 1, further comprising at least one additive selected from the group consisting of polystyrene resins, flame protection agents, pigments, antistatic agents, stabilizers, processing aids and reinforcing agents.
Claim 4
Dependent Claim
23 words
The thermoplastic material of claim 1, comprising 20-50 parts by weight of said preforming material and 80-50 parts by weight of said polyamide.
Claim 5
Dependent Claim
40 words
The thermoplastic material of claim 3, wherein said polyphenylene ether is particulate in nature and is dispersed in a matrix of said polyamide, and wherein said polyphenylene ether particles have a linear average volume distribution of less than 2 microns.
Claim 6
Dependent Claim
23 words
The thermoplastic material of claim 1, wherein said polyamide is selected from the group consisting of 6-, 46-, 66-, 612-, 11- and 12-polyamides.
Claim 7
Dependent Claim
18 words
The thermoplastic material of claim 1, wherein the average molecular weight of said polyamide is greater than 5,000.
Claim 8
Dependent Claim
17 words
The thermoplastic material of claim 6, wherein the average molecular weight of said polyamide is above 10,000.
Claim 9
Dependent Claim
26 words
The thermoplastic material of claim 1, wherein said polyphenylene ether comprises a polymer of 2,6-dimethylphenol, said polymer having an intrinsic viscosity of 0.3-0.65 cm 3 /g.
Claim 10
Dependent Claim
24 words
The thermoplastic material of claim 1, wherein said polyoctenylene has a viscosity of 50-350 cm 3 /g determined in a 0.1% solution of toluene.
Claim 11
Dependent Claim
15 words
The thermoplastic material of claim 9, wherein said viscosity value is 80-160 cm 3 /g.
Claim 12
Dependent Claim
21 words
The thermoplastic material of claim 1, wherein 55-95% of the carbon-carbon double bond content of said polyoctenylene is in the transform.
Claim 13
Dependent Claim
15 words
The thermoplastic material of claim 11, wherein said trans carbon-carbon double bond content is 75-85%.
Claim 14
Dependent Claim
13 words
The thermoplastic material of claim 1, wherein said copolyamide comprises predominantly aliphatic monomers.
Claim 15
Dependent Claim
49 words
A method for the production of the thermoplastic material according to claim 1, comprising the steps of: making a solid mixture of said polyphenylene ether and said polyoctenylene, melting together said solid mixture with bicyclo[2.2.2]-2,3:5,6-dibenzooctadiene-2,5-dicarboxylic acid-7,8-anhydride, and further melting together the product of said melting step with said polyamide.
Claim 16
Dependent Claim
31 words
The method of claim 14, further comprising melting together an additive selected from the group consisting of polystyrene resins, flame protection agents, pigments, antistatic agents, stabilizers, processing aids and reinforcing agents.
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) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |