US4647613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic compositions based on polyphenylene ethers, styrene polymers, and polyoctenylenes, and methods of manufacturing same
Assignee: Huels AG
•
Filing: 1985-10-29
•
Granted: 1987-03-03
•
Expires: 2005-10-29
Abstract
Abstract Thermoplastic compositions comprised of the following components: (A) Polyphenylene ether, in the amount of 20-90 parts by weight; (B) Styrene resins, in the amount of 5-70 parts by weight; (C) Polyoctenylenes, in the amount of 2-20 parts by weight; (D) Copolymers based on styrene and butadiene, in the amount of 0-20 parts by weight; and (E) Optionally, other additives; are disclosed.
Inventors
- 👤 Hans Jadamus
- 👤 Wilfried Ribbing
- 👤 Roland Feinauer
- 👤 Wolfgang Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:03
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L65/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
73 words
A thermoplastic composition containing a polyphenylene ether, a styrene resin and a polyalkenylene, the said thermoplastic composition comprising: (A) a polyphenylene ether in an amount of 20-90 parts by weight; (B) a styrene resin in an amount of 5-70 parts by weight; and (C) a polyoctenylene in an amount of 2-20 parts by weight, said polyoctenylene having been prepared by ring-opening, ring expanding or both ring opening and ring expanding polymerization of cyclooctene.
Claim 2
Dependent Claim
73 words
A thermoplastic composition containing a polyphenylene ether, a styrene resin and a polyalkenylene, the said thermoplastic composition comprising: (A) a polyphenylene ether in an amount of 20-90 parts by weight; (B) a styrene resin in an amount of 5-70 parts by weight; and (C) a polyoctenylene in an amount of 2-20 parts by weight, said polyoctenylene having been prepared by ring-opening, ring expanding or both ring opening and ring expanding polymerization of cyclooctene.
Claim 3
Dependent Claim
23 words
The thermoplastic composition of claim 1, which further contains, D, a styrene-butadiene copolymer in an amount of up to 20 parts by weight.
Claim 4
Dependent Claim
33 words
The thermoplastic composition of claim 1, which further contains as another additive, E, a flame retardant, a pigment, an oligomer, an antistatic agent, a stabilizer, a processability promoting agent or a reinforcing material.
Claim 5
Dependent Claim
17 words
The thermoplastic composition of claim 1, wherein the said polyphenylene ether A is a polymer of 2,6-dimethylphenol.
Claim 6
Dependent Claim
24 words
The thermoplastic composition of claim 1, wherein the said polyphenylene ether, A, has a viscosity number (according to DIN 53 728) of 40-65 ml/g.
Claim 7
Dependent Claim
24 words
The thermoplastic composition of claim 1, wherein the said styrene resin, B, is a styrene homopolymer having a molecular weight between 150,000 and 300,000.
Claim 8
Dependent Claim
17 words
The thermoplastic composition of claim 1, wherein the said styrene resin, B, is a high impact polystyrene.
Claim 9
Dependent Claim
33 words
The thermoplastic composition of claim 1, wherein the said polyoctenylene, C, has a viscosity number (according to DIN 53 728) of 50-350 ml/g, and 55-95% of its double bonds in the trans configuration.
Claim 10
Dependent Claim
27 words
The thermoplastic composition of claim 2, wherein the said copolymer based on styrene and butadiene, D, is a styrene-butadiene copolymer having a styrene content of 15-40 wt.%.
Claim 11
Dependent Claim
25 words
The thermoplastic composition of claim 2, wherein the said copolymer based on styrene and butadiene, D, is a S-B-S block copolymer of styrene and butadiene.
Claim 12
Dependent Claim
56 words
The thermoplastic composition of claim 3, wherein the said other additive, E, comprises up to 50 wt.% of reinforcing material and filling material or up to 15 wt.% of flame retardant, and the total amount of all of the said other additive is up to 5 wt.% of the total weight of the entire molding composition.
Claim 13
Dependent Claim
47 words
The thermoplastic composition of claim 2, wherein the amounts of the said components A, B, C, and D satisfy the following condition: 5<[(a+b)/(c+d)]<15, where a, b, c, and d are the numbers of parts by weight of components A, B, C, and D in the composition, respectively.
Claim 14
Dependent Claim
15 words
The thermoplastic composition of claim 12, wherein the following conditions apply: d>0; 0.5<a/b<2; and 0.5<c/d<2.
Claim 15
Dependent Claim
28 words
A method of manufacturing the thermoplastic composition of claim 1, wherein the said polyphenylene ether, the said styrene resin and the said polyoctenylene are melted and mixed together.
Claim 16
Dependent Claim
36 words
A method of manufacturing the thermoplastic composition of claim 2, wherein the said polyphenylene ether, the said styrene resin, the said polyoctenylene and the said copolymer based on styrene and butadiene are melted and mixed together.
Claim 17
Dependent Claim
40 words
A method of manufacturing the thermoplastic composition of claim 3, wherein the said polyphenylene ether, the said styrene resin, the said polyoctenylene, the said copolymer based on styrene and butadiene and the said other additive are melted and mixed together.
Claim 18
Dependent Claim
14 words
The method of claim 14, wherein a melting temperature of 230°-320° C. is used.
Claim 19
Dependent Claim
14 words
The method of claim 14, wherein a melting temperature of 240°-300° C. is used.
Claim 20
Dependent Claim
14 words
The method of claim 15, wherein a melting temperature of 230°-320° C. is used.
Claim 21
Dependent Claim
14 words
The method of claim 15, wherein a melting temperature of 240°-300° C. is used.
Claim 22
Dependent Claim
14 words
The method of claim 16, wherein a melting temperature of 230°-320° C. is used.
Claim 23
Dependent Claim
14 words
The method of claim 16, wherein a melting temperature of 240°-300° C. is used.
Claim 24
Dependent Claim
45 words
A method of manufacturing the thermoplastic composition of claim 1, wherein the components of the composition are dissolved in a suitable solvent, and the thermoplastic composition subsequently isolated by evaporating the said solvent or by precipitation out of the said solvent with a desolubilizing agent.
Claim 25
Dependent Claim
71 words
A method of manufacturing the thermoplastic composition of claim 1, wherein only a part of the components of the thermoplastic composition are dissolved in a suitable solvent and subsequently isolated by evaporating the said solvent or by precipitation out of the said solvent with a desolubilizing agent; and the resulting preliminary molding composition is then melted with the rest of the components of the thermoplastic composition and intermixed with the same.
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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |