Patent US4073992A successfully refreshed from Google Patents.
US4073992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing on a polyolefin substrate
Assignee: Millennium Petrochemicals Inc
•
Filing: 1974-11-15
•
Granted: 1978-02-14
•
Expires: 1994-11-15
Abstract
Abstract A method is provided for forming an adherent image, such as a design, print, or decoration, on a substrate by applying a fusible pigmented polyolefin powder in a selected pattern to a hot surface of a polyolefin substrate, and fusing the particles of the powder to each other and to the surface to form the image on cooling.
Inventors
- 👤 Frank Lerman
- 👤 Raymond C. Bartsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:50
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/12; B41M1/26; B41M1/30; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24909
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
A method of forming an image on a polyolefinic substrate which comprises applying a dry fusible powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive in a predetermined pattern on the surface of said polyolefin substrate, fusing the powder particles to each other and to the substrate surface by maintaining the substrate at a temperature of about 115° to 140° C., and adherently bonding the pigmented powder to the substrate by cooling the pattern bearing substrate to effect solidification of the powder.
Claim 2
Independent Claim
92 words
A method of forming an image on a polyolefinic substrate which comprises applying a dry fusible powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive in a predetermined pattern on the surface of said polyolefin substrate, fusing the powder particles to each other and to the substrate surface by maintaining the substrate at a temperature of about 115° to 140° C., and adherently bonding the pigmented powder to the substrate by cooling the pattern bearing substrate to effect solidification of the powder.
Claim 3
Independent Claim
99 words
A method of adherently bonding an image on an untreated polyolefin substrate which comprises applying a dry fusible powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive in a selected pattern to the surface of said untreated polyolefin substrate, fusing the particles of the powder to each other and to the substrate surface to form an adherent layer thereon in accordance with said pattern by maintaining the substrate at a temperature of about 115° to 140° C., and effecting solidification of the fused powder by cooling the pattern-bearing substrate.
Claim 4
Independent Claim
99 words
A method of adherently bonding an image on an untreated polyolefin substrate which comprises applying a dry fusible powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive in a selected pattern to the surface of said untreated polyolefin substrate, fusing the particles of the powder to each other and to the substrate surface to form an adherent layer thereon in accordance with said pattern by maintaining the substrate at a temperature of about 115° to 140° C., and effecting solidification of the fused powder by cooling the pattern-bearing substrate.
Claim 5
Dependent Claim
24 words
The method of claim 2 wherein said powder contains about 0.001-1 part by weight of said pigment per part of olefin polymer or copolymer.
Claim 6
Dependent Claim
13 words
The method of claim 3 wherein the pigment concentration is from 0.005-0.2 part.
Claim 7
Dependent Claim
14 words
The method of claim 4 wherein the pigment concentration is from about 0.02-0.15 part.
Claim 8
Dependent Claim
15 words
The method of claim 2 wherein said powder contains about 0.01-10% of said flow additive.
Claim 9
Dependent Claim
20 words
The method of claim 2 wherein the particles of the powder have an average particle size from about 1-200 microns.
Claim 10
Dependent Claim
23 words
The method of claim 2 wherein the polyolefin substrate is polyethylene and wherein the olefin polymer or copolymer in said powder is polyethylene.
Claim 11
Dependent Claim
41 words
An article having an image thereon comprising a non-pretreated polyolefin substrate and adherently bonded thereto in a predetermined pattern, a pigmented, fused powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive.
Claim 12
Dependent Claim
41 words
An article having an image thereon comprising a non-pretreated polyolefin substrate and adherently bonded thereto in a predetermined pattern, a pigmented, fused powder consisting of a pigment, an olefin polymer or copolymer and up to 10% of a silica flow additive.
Claim 13
Dependent Claim
23 words
The article of claim 19 wherein said substrate is polyethylene and wherein said olefin polymer or copolymer in said fused powder is polyethylene.
References Cited (Backward Citations)
US2594290A
Cited
US2632921A
Cited
US2639998A
Cited
US2612480A
Cited
US3545997A
Cited
US3577915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |