US3230187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing thermosetting aminoplast molding composition
Assignee: Wyeth Holdings LLC
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Filing: 1962-06-01
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Granted: 1966-01-18
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Wilbur N Oldham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:48
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08J2361/00; C08J2361/20; C08J2461/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF MANUFACTURING A THERMOSETTING AMINOPLAST RESIN MOLDING COMPOSITION WHICH COMPRISES: (1) IMPREGNATING A FILLER WITH 40 TO 60 PERCENT OF THE REQUIRED AMOUNT OF A THERMOSETTING AMINOPLAST RESIN OF THE AMINOTRIAZINE-ALDEHYDE TYPE IN SYRUP FORM TO GIVE A PARTIALLY IMPREGNATED FILLER, (2) DRYING AT A TEMPERATURE BELOW THAT AT WHICH THE RESIN CONTENT OF THE MATERIAL WILL SUBSTANTILLY ADVANCE IN CURE SAID PARTIALLY IMPREGNATED FILLER TO A VOLATILE CONTENT OF LESS THAN ABOUT 10%, (3) ADDING THE REMAINDER OF THE REQUIRED AMOUNT OF THERMOSETTING AMINOPLAST RESIN AS SUBSTANTIALLY DRY RESIN TO THE DRIED, PARTIALLY IMPREGNATED FILLER TO GIVE A COMPOSITE MATERIAL, AND (4) COMMIUTING AND HOMOGENEOUSLY BLENDING SAID COMPOSITE MATRERIAL.
Claim 2
Independent Claim
112 words
A METHOD OF MANUFACTURING A THERMOSETTING AMINOPLAST RESIN MOLDING COMPOSITION WHICH COMPRISES: (1) IMPREGNATING A FILLER WITH 40 TO 60 PERCENT OF THE REQUIRED AMOUNT OF A THERMOSETTING AMINOPLAST RESIN OF THE AMINOTRIAZINE-ALDEHYDE TYPE IN SYRUP FORM TO GIVE A PARTIALLY IMPREGNATED FILLER, (2) DRYING AT A TEMPERATURE BELOW THAT AT WHICH THE RESIN CONTENT OF THE MATERIAL WILL SUBSTANTILLY ADVANCE IN CURE SAID PARTIALLY IMPREGNATED FILLER TO A VOLATILE CONTENT OF LESS THAN ABOUT 10%, (3) ADDING THE REMAINDER OF THE REQUIRED AMOUNT OF THERMOSETTING AMINOPLAST RESIN AS SUBSTANTIALLY DRY RESIN TO THE DRIED, PARTIALLY IMPREGNATED FILLER TO GIVE A COMPOSITE MATERIAL, AND (4) COMMIUTING AND HOMOGENEOUSLY BLENDING SAID COMPOSITE MATRERIAL.
References Cited (Backward Citations)
US1996757A
Cited
US3007885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |