US3322854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mixing polystyrene with linear polyesters
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1964-03-30
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Granted: 1967-05-30
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Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Yasui Takeshi
- 👤 Fukushima Osamu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:37
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/04; C08F; C08F291/00; D; D01; D01F; D01F6/00; D01F6/78; D01F6/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD OF MANUFACTURING RESIN BLEND COMPOSITIONS COMPRISED OF AN A-CONDENSATE CONSISTING ESSENTIALLY OF A SATURATED LINEAR FIBER FORMING POLYESTER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF AND ETHYLENE GLYCOL, COPOLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF, ISOPHTHALIC ACID OR ESTERS THEREOF AND ETHYLENE GLYCOL, COPOLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF AND CYCLOHEXANE-1,4-DIMETHANOL, AND POLYESTERS OBTAINED FROM P-B-HYDROXYBENZOIC ACID; AND A B-SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERS OF STYRENE, A-METHYLSTYRENE, P-METHOXYSTYRENE, VINYLTOLUENE, STYRENE CHLORIDE, STYRENE DICHLORIDE, ACENAPHTHYLENE, AND HOMOPOLYMERS THEREOF; COMPRISING ADDING THE B-SUBSTANCE TO THE A-CONDENSATE PRIOR TO THE COMPLETION OF POLYCONDENSATION OF SAID A-CONDENSATE, AND THEREAFTER COMPLETING SAID POLYCONDENSATION.
Claim 2
Independent Claim
113 words
A METHOD OF MANUFACTURING RESIN BLEND COMPOSITIONS COMPRISED OF AN A-CONDENSATE CONSISTING ESSENTIALLY OF A SATURATED LINEAR FIBER FORMING POLYESTER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF AND ETHYLENE GLYCOL, COPOLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF, ISOPHTHALIC ACID OR ESTERS THEREOF AND ETHYLENE GLYCOL, COPOLYESTERS OBTAINED FROM TEREPHTHALIC ACID OR ESTERS THEREOF AND CYCLOHEXANE-1,4-DIMETHANOL, AND POLYESTERS OBTAINED FROM P-B-HYDROXYBENZOIC ACID; AND A B-SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MONOMERS OF STYRENE, A-METHYLSTYRENE, P-METHOXYSTYRENE, VINYLTOLUENE, STYRENE CHLORIDE, STYRENE DICHLORIDE, ACENAPHTHYLENE, AND HOMOPOLYMERS THEREOF; COMPRISING ADDING THE B-SUBSTANCE TO THE A-CONDENSATE PRIOR TO THE COMPLETION OF POLYCONDENSATION OF SAID A-CONDENSATE, AND THEREAFTER COMPLETING SAID POLYCONDENSATION.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |