US2770566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding a polyamide layer to a polyvinyl chloride layer and products thus obtained
Assignee: Individual
•
Filing: 1952-09-24
•
Granted: 1956-11-13
•
Expires: 1972-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ritter Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/125; B; B32; B32B; B32B27/00; C08J3/00; C08J3/02; C08J3/09; C08J3/091; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31779; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/273
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
THE METHOD OF BONDING A POLYAMIDE LAYER TO A POLYVINYL CHLORIDE LAYER WHICH COMPRISES DEPOSITING ON THE POLYVINYL CHLORIDE LAYER A FIRST INTERMEDIATE LAYER OF A SOLUTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF A POLYACRYLIC ACID ESTER AND A POLYMETHACRYLIC ACID ESTER, DEPOSITING ON SAID FIRST INTERMEDIATE LAYER A SECOND INTERMEDIATE LAYER OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF NITROCELLULOSE AND POLYVINYL ACETATE AND DEPOSITING ON SAID SECOND INTERMEDIATE LAYER THE POLYAMIDE LAYER.
Claim 2
Independent Claim
78 words
THE METHOD OF BONDING A POLYAMIDE LAYER TO A POLYVINYL CHLORIDE LAYER WHICH COMPRISES DEPOSITING ON THE POLYVINYL CHLORIDE LAYER A FIRST INTERMEDIATE LAYER OF A SOLUTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF A POLYACRYLIC ACID ESTER AND A POLYMETHACRYLIC ACID ESTER, DEPOSITING ON SAID FIRST INTERMEDIATE LAYER A SECOND INTERMEDIATE LAYER OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF NITROCELLULOSE AND POLYVINYL ACETATE AND DEPOSITING ON SAID SECOND INTERMEDIATE LAYER THE POLYAMIDE LAYER.
Claim 3
Dependent Claim
52 words
ARTIFICIAL MATERIAL COMPRISING, AS A BASIC LAYER, A LAYER OF POLYVINYL CHLORIDE ON SAID BASIC LAYER AN INTERMEDIATE LAYER OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF POLYACRYLIC ACID ESTER AND A POLYMETHACRYLIC ACID ESTER AND ON SAID INTERMEDIATE LAYER A LAYER CONSISTING OF A MIXTURE OF NITROCELLULOSE AND THE POLYAMIDE.
Claim 4
Dependent Claim
52 words
ARTIFICIAL MATERIAL COMPRISING, AS A BASIC LAYER, A LAYER OF POLYVINYL CHLORIDE ON SAID BASIC LAYER AN INTERMEDIATE LAYER OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF POLYACRYLIC ACID ESTER AND A POLYMETHACRYLIC ACID ESTER AND ON SAID INTERMEDIATE LAYER A LAYER CONSISTING OF A MIXTURE OF NITROCELLULOSE AND THE POLYAMIDE.
References Cited (Backward Citations)
US2238694A
Cited
US2598090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |