US3920602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic nylon molding resins
Assignee: Celanese Corp
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Filing: 1974-08-12
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Granted: 1975-11-18
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Expires: 1994-08-12
Abstract
Abstract An improved thermoplastic molding resin comprising intimately mixed nylon molding resin and reinforcing agents in the presence of a thermoplastic phenoxy resin.
Inventors
- 👤 William T Freed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08L; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/93
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
AN IMPROVED THERMOPLASTIC MOLDING RESIN COMPRISING A SYNTHETIC LINEAR POLYMER HAVING A RELATIVE VISCOSITY IN THE RANGE OF FROM 35 TO 100; FROM ABOUT 5 TO ABOUT 60 WEIGHT PERCENT, BASED ON THE TOTAL THERMOPLASTIC MOLDING RESIN, OF A REINFORCING AGENT INTIMATELY MIXED WITH SAID POLYMER; AND FROM ABOVE 0.5 TO ABOUT 3 WEIGHT PERCENT,BASED ON THE TOTALTHERMOPLASTIC MOLDING RESIN,OF A THERMOPLASTIC PHENOXY RESIN HAVING THR REPEATING STRUCTURE;
Claim 2
Dependent Claim
68 words
AN IMPROVED THERMOPLASTIC MOLDING RESIN COMPRISING A SYNTHETIC LINEAR POLYMER HAVING A RELATIVE VISCOSITY IN THE RANGE OF FROM 35 TO 100; FROM ABOUT 5 TO ABOUT 60 WEIGHT PERCENT, BASED ON THE TOTAL THERMOPLASTIC MOLDING RESIN, OF A REINFORCING AGENT INTIMATELY MIXED WITH SAID POLYMER; AND FROM ABOVE 0.5 TO ABOUT 3 WEIGHT PERCENT,BASED ON THE TOTALTHERMOPLASTIC MOLDING RESIN,OF A THERMOPLASTIC PHENOXY RESIN HAVING THR REPEATING STRUCTURE;
Claim 3
Dependent Claim
12 words
The product of claim 1 wherein the reinforcing agents are glass fibers.
Claim 4
Dependent Claim
13 words
The product of claim 1 wherein the reinforcing agent is acicular calcium metasilicate.
Claim 5
Dependent Claim
26 words
The product of claim 2 wherein the polyamide polymer is polyhexamethylene adipamide and having a relative viscosity in the range from about 45 to about 65.
Claim 6
Dependent Claim
26 words
The product of claim 3 wherein the polyamide polymer is polyhexamethylene adipamide and having a relative viscosity in the range from about 45 to about 65.
Claim 7
Dependent Claim
22 words
The product of claim 4 wherein the phenoxy resin has an average molecular weight ranging from about 20,000 to about 50, 000.
Claim 8
Dependent Claim
70 words
A process for producing an improved thermoplastic molding resin wherein a synthetic linear polyamide polymer having a relative viscosity in the range from 35 to 100 is intimately mixed with about 5 to 60 weight percent of the total molding resin of a reinforcing agent in the presence of above 0.5 to about 3 weight percent of the total molding resin of a thermoplastic phenoxy resin having a repeating structure:
Claim 9
Dependent Claim
70 words
A process for producing an improved thermoplastic molding resin wherein a synthetic linear polyamide polymer having a relative viscosity in the range from 35 to 100 is intimately mixed with about 5 to 60 weight percent of the total molding resin of a reinforcing agent in the presence of above 0.5 to about 3 weight percent of the total molding resin of a thermoplastic phenoxy resin having a repeating structure:
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |