US4353955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane foam - fabric composite
Assignee: BASF Corp
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Filing: 1981-11-12
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Granted: 1982-10-12
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Expires: 2001-11-12
Abstract
Abstract The present invention is directed to a method of applying a polyurethane foam to a fabric and the product produced thereof. This method involves: (a) coating the fabric with a silicone surfactant, and (b) expanding the polyurethane foaming mixture in contact with the coated portion of the fabric.
Inventors
- 👤 John H. Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; C08J2375/00; C08J2375/04; C08J2483/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/3366
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
45 words
In the method of applying polyurethane foams to fabric by expanding a polyurethane foaming mixture against the fabric, the improvement comprising (a) coating the fabric with a silicone surfactant and (b) expanding the polyurethane foaming mixture in contact with the coated portion of said fabric.
Claim 2
Dependent Claim
45 words
In the method of applying polyurethane foams to fabric by expanding a polyurethane foaming mixture against the fabric, the improvement comprising (a) coating the fabric with a silicone surfactant and (b) expanding the polyurethane foaming mixture in contact with the coated portion of said fabric.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said fabric is textile fabric reinforced vinyl.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said fabric is textile fabric reinforced polyurethane.
Claim 5
Dependent Claim
22 words
The method of claim 1 wherein said silicone surfactant coating on said fabric is about 0.1 to 2.0 grams per square foot.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein said silicone surfactant is a polysiloxane-polyoxyalkylene copolymer.
Claim 7
Dependent Claim
40 words
The method of claim 4 wherein said polyurethane is poured onto said surfactant coated fabric at a temperature of 80° to 110° F. and cured for at least 3 minutes at a temperature of from about 25° to 150° C.
Claim 8
Dependent Claim
13 words
The method of claim 6 wherein said silicone surfactant is a polysiloxane-polyoxyalkylene copolymer.
Claim 9
Dependent Claim
13 words
The method of claim 7 wherein said fabric is textile fabric reinforced vinyl.
Claim 10
Dependent Claim
12 words
The method of claim 7 wherein said fabric is textile reinforced polyurethane.
Claim 11
Dependent Claim
32 words
The composite material comprising (a) a layer of fabric, (b) a silicone surfactant coating on said fabric, and (c) a layer of polyurethane foam affixed to said coated portion of said fabric.
Claim 12
Dependent Claim
32 words
The composite material comprising (a) a layer of fabric, (b) a silicone surfactant coating on said fabric, and (c) a layer of polyurethane foam affixed to said coated portion of said fabric.
Claim 13
Dependent Claim
13 words
The composite of claim 10 wherein said fabric is textile fabric reinforced vinyl.
Claim 14
Dependent Claim
13 words
The composite of claim 10 wherein said fabric is textile fabric reinforced urethane.
Claim 15
Dependent Claim
22 words
The composite of claim 10 wherein said silicone surfactant coating on said fabric is about 0.1 to 2.0 grams per square foot.
Claim 16
Dependent Claim
13 words
The composite of claim 13 wherein said silicone surfactant is a polysiloxane-polyoxyalkylene copolymer.
Claim 17
Dependent Claim
39 words
The composite of claim 13 wherein said polyurethane is poured onto said surfactant coated fabric at a temperature of 80° to 110° F. and cured for at least 3 minutes at a temperature of about 25° to 150° C.
Claim 18
Dependent Claim
13 words
The composite of claim 15 wherein said silicone surfactant is a polysiloxane-polyoxyalkylene copolymer.
Claim 19
Dependent Claim
13 words
The composite of claim 16 wherein said fabric is textile fabric reinforced vinyl.
Claim 20
Dependent Claim
13 words
The composite of claim 16 wherein said fabric is textile fabric reinforced polyurethane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |