US4104430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum formable materials
Assignee: Storey Brothers and Co Ltd
•
Filing: 1975-06-02
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Granted: 1978-08-01
•
Expires: 1995-06-02
Abstract
Abstract The preparation of a laminate which can be shaped by vacuum forming is described. The laminate is of a stretchable fabric, a plasticized vinyl chloride polymer layer and sandwiched between them a plastics foam layer. Such a material has a luxurious and "full" feel even after shaping.
Inventors
- 👤 Sidney Desmond Fenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:43
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/06; B32B27/065; B32B27/30; B32B27/304; B32B3/00; B32B3/26; B32B3/30; B32B5/00; B32B5/22; B32B5/24; B32B5/245; D; D06; D06M; D06M23/00; D06M23/16; D06M23/18; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0235; B32B2266/0278; B32B2266/06; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928; Y10T428/31935; Y10T442/00; Y10T442/40; Y10T442/469
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A vacuum formed laminate from a material comprising: a. a stretchable fabric having a ready stretchability of at least 20% in at least about one direction under a 5 lb load for a 2 inch wide strip, b. a cast plasticized vinyl chloride polymer layer which is 0.1 to 2 mm thick, and c. sandwiched between said fabric and said layer, a plastic foam layer which is from 1 to 20 mm thick.
Claim 2
Dependent Claim
73 words
A vacuum formed laminate from a material comprising: a. a stretchable fabric having a ready stretchability of at least 20% in at least about one direction under a 5 lb load for a 2 inch wide strip, b. a cast plasticized vinyl chloride polymer layer which is 0.1 to 2 mm thick, and c. sandwiched between said fabric and said layer, a plastic foam layer which is from 1 to 20 mm thick.
Claim 3
Dependent Claim
15 words
A material according to claim 1 in which said vinyl chloride polymer is polyvinyl chloride.
Claim 4
Dependent Claim
15 words
A material as claimed in claim 1 in which said foam is an open-celled foam.
Claim 5
Dependent Claim
25 words
A material as claimed in claim 1 in which said plastics foam has been chosen from a polyurethane foam and a vinyl chloride polymer foam.
Claim 6
Dependent Claim
38 words
The material of claim 1 wherein said stretchable fabric has a ready stretchability of at least about 5% in two directions at right angles to each other under a 5 lb. load for a two inch wide strip.
Claim 7
Dependent Claim
14 words
The material of claim 5 wherein said stretchable fabric is a knitted nylon fabric.
Claim 8
Dependent Claim
38 words
The material of claim 1 wherein said stretchable fabric has a ready stretchability of at least 25% in two directions at right angles to one another for a two inch wide strip under a load of 5 lbs.
Claim 9
Dependent Claim
15 words
The material of claim 7 wherein said stretchable fabric is a highly crimped nylon yarn.
Claim 10
Dependent Claim
27 words
A material of claim 1 wherein said foam is an open-celled foam and is selected from the group consisting of polyurethane foam and vinyl chloride polymer foam.
References Cited (Backward Citations)
US2792322A
Cited
US3075863A
Cited
GB923207A
Cited
GB1032868A
Cited
GB1036539A
Cited
US3336180A
Cited
US3399107A
Cited
US3433700A
Cited
US3535196A
Cited
GB1188573A
Cited
US3576703A
Cited
US3729370A
Cited
US3671375A
Cited
GB1261682A
Cited
US3933548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |