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US5075135A
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Process for providing the surface of a film made from a weldable polymer material with projections
Assignee: GSE Lining Technology Inc
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Filing: 1991-03-05
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Granted: 1991-12-24
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Expires: 2011-03-05
Abstract
Abstract A process for providing the surface of a film made from a weldable polymer material with projections. The projections are formed by particles which are applied, in particular sprayed, in the molten state onto the film surface. The welding factor is preferably significantly below 1.
Inventors
- 👤 Michael Brandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:32
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D5/00; B05D5/02; B29; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C65/00; B29C65/02; B29C65/022; B29C65/028; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/47; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; C; C08; C08J; C08J5/00; C08J5/12; C08J5/121; B05D1/00; B05D1/02; B05D1/12; B05D2401/00; B05D2401/30; B05D2401/32; B29C48/001; B29C48/0011; B29C66/71; B29C66/735; B29C66/7352; B29K; B29K2995/00; B29K2995/0037; B29K2995/0072; B29L; B29L2007/00; B29L2007/001; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/24628; Y10T428/24669; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/254; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
90 words
A process for providing the surface of a film made form a weldable polymer material with projections, for forming an increased friction damage resistant film, comprising the steps of welding particles to the surface by applying particles of a material which can be welded to the film material to the surface while maintaining the surface and/or the particles at a welding temperature to form a weld characterized by a weld factor significantly less than 1, and comprising no further steps that would increase the weld factor to more than 1.
Claim 2
Dependent Claim
90 words
A process for providing the surface of a film made form a weldable polymer material with projections, for forming an increased friction damage resistant film, comprising the steps of welding particles to the surface by applying particles of a material which can be welded to the film material to the surface while maintaining the surface and/or the particles at a welding temperature to form a weld characterized by a weld factor significantly less than 1, and comprising no further steps that would increase the weld factor to more than 1.
Claim 3
Dependent Claim
80 words
A process for providing the surface of a film made from a weldable polymer material with projections, for forming an increased friction damage resistant film comprising the steps of: welding particles to the surface by throwing particles of a material that can be welded to the film material in a molten state against the film surface while maintaining the surface and/or the particles at a welding temperature to form a weld characterized by a weld factor significantly less than 1.
Claim 4
Dependent Claim
80 words
A process for providing the surface of a film made from a weldable polymer material with projections, for forming an increased friction damage resistant film comprising the steps of: welding particles to the surface by throwing particles of a material that can be welded to the film material in a molten state against the film surface while maintaining the surface and/or the particles at a welding temperature to form a weld characterized by a weld factor significantly less than 1.
Claim 5
Dependent Claim
19 words
The process as claimed in claim 2, wherein the particles are sprayed against the film from a molten composition.
Claim 6
Dependent Claim
24 words
The process as claimed in claim 3, wherein the surface temperature of the film on impact of the particles is less than 70° C.
Claim 7
Dependent Claim
24 words
The process as claimed in claim 4, wherein the surface temperature of the film on impact of the particles is less than 50° C.
Claim 8
Dependent Claim
25 words
The process as claimed in claim 2, wherein the surface temperature of the film on impact of the particles is less than about 70° C.
Claim 9
Dependent Claim
23 words
The process as claimed in claim 6, wherein the surface temperature of the film on impact of the particles is less than 50°.
Claim 10
Dependent Claim
24 words
The process as claimed in claim 1, wherein the surface temperature of the film on impact of the particles is less than 70° C.
Claim 11
Dependent Claim
24 words
The process as claimed in claim 8, wherein the surface temperature of the film on impact of the particles is less than 50° C.
Claim 12
Dependent Claim
19 words
The process as claimed in claim 1, wherein the particles are sprayed against the film from a molten composition.
Claim 13
Dependent Claim
25 words
The process as claimed in claim 10, wherein the surface temperature of the film on impact of the particles is less than about 70° C.
Claim 14
Dependent Claim
24 words
The process as claimed in claim 11, wherein the surface temperature of the film on impact of the particles is less than 50 C.
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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |