US4419478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic molding materials
Assignee: BASF SE
•
Filing: 1982-04-05
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Granted: 1983-12-06
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Expires: 2002-04-05
Abstract
Abstract Thermoplastic molding materials based on impact resistant styrene polymers and polyphenylene ethers, containing an ester of an aliphatic monocarboxylic acid having 8 to 30 carbon atoms and an aliphatic or aromatic hydroxy compound having 1 to 6 hydroxyl groups.
Inventors
- 👤 Franz Brandstetter
- 👤 Adolf Echte
- 👤 Herbert Naarmann
- 👤 Edmund Priebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A thermoplastic molding material based on impact resistant styrene polymer prepared by the polymerization of monostyrene in the presence of polybutadiene rubber and polyphenylene ether wherein the molding material contains 0.1 to 5 percent by weight, based on the weight of the mixture of the styrene polymer and the polyphenylene ether, of an ester of an aliphatic monocarboxylic acid having 8 to 30 carbon atoms and an aliphatic or aromatic hydroxy compound having 1 to 6 hydroxyl groups and homogeneously mixing said molding material.
Claim 2
Dependent Claim
84 words
A thermoplastic molding material based on impact resistant styrene polymer prepared by the polymerization of monostyrene in the presence of polybutadiene rubber and polyphenylene ether wherein the molding material contains 0.1 to 5 percent by weight, based on the weight of the mixture of the styrene polymer and the polyphenylene ether, of an ester of an aliphatic monocarboxylic acid having 8 to 30 carbon atoms and an aliphatic or aromatic hydroxy compound having 1 to 6 hydroxyl groups and homogeneously mixing said molding material.
Claim 3
Dependent Claim
29 words
The thermoplastic molding material of claim 1 wherein the ester is selected from the group consisting of stearyl stearate, stearyl palmitate, pentaerythritol tetrastearate, sorbitol stearate and Bisphenol A stearate.
Claim 4
Dependent Claim
13 words
The thermoplastic molding material of claim 1 wherein the ester is stearyl sterate.
Claim 5
Dependent Claim
20 words
The thermoplastic molding material of claim 1 wherein said material contains 0.5 to 2 percent by weight of said ester.
Claim 6
Dependent Claim
20 words
The thermoplastic molding material of claim 2 wherein said material contains 0.5 to 2 percent by weight of said ester.
References Cited (Backward Citations)
US3383435A
Cited
US4174325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |