US2600681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting films from polyvinyl halide latex
Assignee: Monsanto Chemicals Ltd
•
Filing: 1948-03-05
•
Granted: 1952-06-17
•
Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Harold F Park
- 👤 Milton J Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08J; C08J5/00; C08J5/18; C08L25/00; C08L25/02; C08L25/04; C09; C09D; C09D129/00; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR MAKING A SELF-SUPPORTING FILM WHICH COMPRISES DISSOLVING 1-15 PARTS OF A WATERSOLUBLE ETHER OF A METHYLOL MELAMINE IN AN AQUEOUS DISPERSION CONTAINING 100 PARTS OF A WATERINSOLUBLE THERMOPLASTIC VINYL HALIDE POLYMER IN WHICH THE VINYL HALIDE CONSTITUTES A MAJOR PROPORTION BY WEIGHT OF THE POLYMER DISPERSED IN WATER, CASTING THE MODIFIED DISPERSION THUS PREPARED AND DRYING THE CAST FILM AT 20* TO 120* C.
Claim 2
Dependent Claim
67 words
A PROCESS FOR MAKING A SELF-SUPPORTING FILM WHICH COMPRISES DISSOLVING 1-15 PARTS OF A WATERSOLUBLE ETHER OF A METHYLOL MELAMINE IN AN AQUEOUS DISPERSION CONTAINING 100 PARTS OF A WATERINSOLUBLE THERMOPLASTIC VINYL HALIDE POLYMER IN WHICH THE VINYL HALIDE CONSTITUTES A MAJOR PROPORTION BY WEIGHT OF THE POLYMER DISPERSED IN WATER, CASTING THE MODIFIED DISPERSION THUS PREPARED AND DRYING THE CAST FILM AT 20* TO 120* C.
References Cited (Backward Citations)
CH221004A
Cited
CH225490A
Cited
US2291080A
Cited
US2364172A
Cited
US2450902A
Cited
US2416447A
Cited
US2402032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |