Patent US3847729A successfully refreshed from Google Patents.
US3847729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep-drawable plastic composite comprising plastic film on fibrous support
Assignee: Carl Freudenberg KG
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Filing: 1970-01-15
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Granted: 1974-11-12
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Expires: 1990-01-15
Abstract
Abstract Deep-drawable composite comprising: A. A PLASTIC FILM OF DEEP-DRAWABLE PLASTIC, B. A NON-WOVEN FLEECE CONSISTING ESSENTIALLY OF DRAWABLE FILAMENTS WHICH ARE DRAWABLE UPON DEEP-DRAWING OF THE PLASTIC FILM, C. SAID PLASTIC FILM COATING SAID FLEECE. The composite and process of producing it are claimed.
Inventors
- 👤 L Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:27
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/16; B; B29; B29C; B29C51/00; B29C51/14; B29C51/145; B32; B32B; B32B27/00; D06; D06N; D06N3/00; D06N3/0002; D06N3/0015; D06N3/007; D06N3/0077; B29C2791/00; B29C2791/004; B29C2791/006; B29C51/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31562; Y10T428/31565; Y10T428/31573; Y10T428/31587
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
DEEP-DRAWABLE COMPOSITE COMPRISING: A. A PLASTIC FILM DEEP-DRAWABLE PLASTIC, B. A NON-WOVEN FLEECE CONSISTING ESSENTIALLY OF PARTIALLY DRAWN AND FURTHER DRAWABLE FILAMENTS WHICH ARE DRAWABLE
Claim 2
Dependent Claim
25 words
DEEP-DRAWABLE COMPOSITE COMPRISING: A. A PLASTIC FILM DEEP-DRAWABLE PLASTIC, B. A NON-WOVEN FLEECE CONSISTING ESSENTIALLY OF PARTIALLY DRAWN AND FURTHER DRAWABLE FILAMENTS WHICH ARE DRAWABLE
Claim 3
Dependent Claim
11 words
Composite according to claim 1, said drawable filaments being continuous monofilaments.
Claim 4
Dependent Claim
16 words
Composite according to claim 2, said drawable filaments having an elongation to breakage of about 100-400%.
Claim 5
Dependent Claim
14 words
Composite according to claim 1, said filaments being bonded together with a binding agent.
Claim 6
Dependent Claim
22 words
Composite according to claim 4, said binder being adhesive with respect to the plastic coating and bonding the coating to the fleece.
Claim 7
Dependent Claim
21 words
Composite according to claim 1, said plastic being polyurethane or polyvinylchloride plastic, said filaments being polyamide, polypropylene, polyurethane or polyester polymers.
Claim 8
Dependent Claim
17 words
Composite according to claim 1, said plastic being polyurethane or polyvinylchloride plastic, said filaments being polyamide polymers.
Claim 9
Dependent Claim
64 words
Deep drawable composite comprising: a. a plastic film of deep-drawable plastic, b. a non-woven fleece consisting essentially of randomly disposed partially drawn and further drawable continuous monofilaments formed by gas stream drawing and collected to form the non-woven fleece, said continuous monofilaments having an elongation to breakage of about 100-400%, and being bonded together with a binding agent, c. said plastic coating said fleece.
Claim 10
Dependent Claim
64 words
Deep drawable composite comprising: a. a plastic film of deep-drawable plastic, b. a non-woven fleece consisting essentially of randomly disposed partially drawn and further drawable continuous monofilaments formed by gas stream drawing and collected to form the non-woven fleece, said continuous monofilaments having an elongation to breakage of about 100-400%, and being bonded together with a binding agent, c. said plastic coating said fleece.
Claim 11
Dependent Claim
22 words
Composite according to claim 8, said binder being adhesive with respect to the plastic coating and bonding the coating to the fleece.
Claim 12
Dependent Claim
21 words
Composite according to claim 8, said plastic being polyurethane or polyvinylchloride plastic, said filaments being polyamide, polypropylene, polyurethane or polyester polymers.
Claim 13
Dependent Claim
17 words
Composite according to claim 8, said plastic being polyurethane or polyvinylchloride plastic, said filaments being polyamide polymers.
References Cited (Backward Citations)
US2715591A
Cited
US3158525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |