Claims
- 1. A process for the production of a film structure, comprising treating at least one surface of a substrate layer by means of a corona discharge operated at an alternating current voltage between 5,000 and 25,000 V, said corona discharge occurring between a high voltage electrode and a counter electrode; and introducing an aerosol containing a polymeric film-forming agent with a carrier gas into the corona discharge.
- 2. A process as claimed in claim 1, wherein treating said substrate includes moving said substrate through the corona discharge zone at a transport velocity proportional to the level of the alternating current voltage at which the corona discharge is operated.
- 3. The process as claimed in claim 1, wherein the aerosol is introduced into the corona discharge zone with the aid of two-material atomizing nozzles or piezoelectric ultrasonic atomizing systems.
- 4. The processes claimed in claim 1, wherein said polymeric film-forming agent is dispersed or emulsified in a solvent or dispersant and said dispersion or emulsion has a content of polymeric agent of 0.1 to 20% by weight, based on the total weight of the dispersion or emulsion.
- 5. The process as claimed in claim 1, wherein the carrier gas used is a gas, selected from the group consisting of air, nitrogen or a noble gas.
- 6. A process as claimed in claim 1, wherein the carrier gas used is a gas, selected from the group consisting of halogen, carbon dioxide, ammonia, or formaldehyde, or a mixture of said gases with gases selected from the group consisting of air, nitrogen, or a noble gas.
- 7. A process for forming a polymeric film structure with improved slip characteristics and reduced friction properties, comprising: forming a polymeric film structure; corona treating at least one surface of said structure; and coating said structure simultaneously during said corona treatment by means of an aerosol, said aerosol comprising a carrier gas and a dispersant, said dispersant comprising a solvent and a film-forming agent, said coating applied at a rate of from 1 to 100 mg per square meter of said structure.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3827632 |
Aug 1988 |
DEX |
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3827634 |
Aug 1988 |
DEX |
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Parent Case Info
This is a division of application Ser. No. 07/391,076 filed Aug. 8, 1989.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
391076 |
Aug 1989 |
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