US3660200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding preheated thermoplastic film to a dissimilar substrate
Assignee: AUGUSTUS W BACHMAN JR
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Filing: 1969-07-09
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Granted: 1972-05-02
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Expires: 1989-07-09
Abstract
Abstract The present process relates to a method and an apparatus for continuously thermally bonding layers of materials together so as to form a laminate from a composite which includes at least one layer of thermoplastic film and at least one layer of substrate. In particular, the present invention is of value for bonding together multiple layers of thermoplastic film and substrate to which have been imparted various decorative and utilitarian effects.
Inventors
- 👤 Robert E Anderson
- 👤 Augustus W Bachman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:56
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B32B27/30; B32B27/304; B32B27/32; B32B37/00; B32B37/0046; B32B37/0053; B32B38/00; B32B38/06; B32B38/14; B32B38/145; D; D06; D06M; D06M17/00; D06M17/04; D06M17/06; D06Q; D06Q1/00; B32B38/0012; B32B2038/002; B32B2038/0052; B32B2038/0092; B32B2305/00; B32B2305/10; B32B2305/18; B32B2309/00; B32B2309/12; B32B2311/00; B32B2317/00; B32B2317/12; B32B2323/00; B32B2323/04; B32B2323/043; B32B2323/046; B32B2398/00; B32B2398/20; B32B37/14; B32B37/16; B32B37/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
64 words
The method of claim 1 wherein: A. the film is low density polyethylene, B. the nip rolls are maintained at a temperature of from about 210* F. to about 275* F., C. the substrate is kraft paper, and D. substantially just prior to passing through said nip section the paper is heated to a temperature of from about 250* F. to about 300* F.
Claim 2
Dependent Claim
40 words
The method of claim 1 wherein said laminate is next heated to a temperature of from about 150* F. to about 500* F. whereby gloss of the film is enhanced and bonding of the substrate to the film is improved.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein the uncooled surface of at least one layer of the composite is metal coated by vapor plating or solution plating.
Claim 4
Dependent Claim
20 words
The method of claim 1 wherein the uncooled surface of at least one layer of thermoplastic film is flock coated.
Claim 5
Dependent Claim
57 words
The method of claim 1 wherein: A. the film is medium density polyethylene, B. the nip rolls are maintained at a temperature of from about 275* F. to about 325* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 300* F. to about 350* F.
Claim 6
Dependent Claim
57 words
The method of claim 1 wherein: A. the film is high density polyethylene, B. The nip rolls are maintained at a temperature of from about 325* F. to about 375* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 350* F. to about 400* F.
Claim 7
Dependent Claim
57 words
The method of claim 1 wherein: A. the film is nitrocellulose coated polypropylene, B. the nip rolls are maintained at a temperature of from about 250* F. to about 300* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 275* F. to about 300* F.
Claim 8
Dependent Claim
55 words
The method of claim 1 wherein: A. the film is polypropylene, B. the nip rolls are maintained at a temperature of from about 300* F. to about 400* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 325* F. to about 425* F.
Claim 9
Dependent Claim
56 words
The method of claim 1 wherein: A. the film is polyvinylidene chloride, B. the nip rolls are maintained at a temperature of from about 320* F. to about 350* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 340* F. to about 375* F.
Claim 10
Dependent Claim
56 words
The method of claim 1 wherein: A. the film is polyvinyl chloride, B. the nip rolls are maintained at a temperature of from about 325* F. to about 375* F., and C. the substrate substantially just prior to passing through said nip section is at a temperature of from about 350* F. to about 400* F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |