GB646599A - Improvements in or relating to methods of applying impervious films to articles suchas radio components - Google Patents
Improvements in or relating to methods of applying impervious films to articles suchas radio componentsInfo
- Publication number
- GB646599A GB646599A GB1046348A GB1046348A GB646599A GB 646599 A GB646599 A GB 646599A GB 1046348 A GB1046348 A GB 1046348A GB 1046348 A GB1046348 A GB 1046348A GB 646599 A GB646599 A GB 646599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- polythene
- polyisobutylene
- solvent
- applying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
- B05D2507/01—Polyethylene
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Hermetically-sealed components for radio or electrical apparatus are made by applying an adhesive film of polyisobutylene to the component and then a solution of polythene in a solvent having a boiling point higher than the melting point of polythene, and evaporating the solvent. The solution may be applied by dipping, spraying, painting, moulding or other known method and the component may be preheated to a temperature higher than the boiling point of the solvent before applying the solution which may also contain fillers. The polyisobutylene is preferably applied as a solution in a similar solvent, e.g. xylene. The Provisional Specification discloses a process in which the polythene solution is applied without the initial polyisobutylene coating and lists polyisobutylene, rubber-like materials, gums, waxes, natural and synthetic resins, plastics, mica, silica, clays, and ceramic materials and silicones as suitable additives for the polythene solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1046348A GB646599A (en) | 1948-04-15 | 1948-04-15 | Improvements in or relating to methods of applying impervious films to articles suchas radio components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1046348A GB646599A (en) | 1948-04-15 | 1948-04-15 | Improvements in or relating to methods of applying impervious films to articles suchas radio components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB646599A true GB646599A (en) | 1950-11-22 |
Family
ID=9968325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1046348A Expired GB646599A (en) | 1948-04-15 | 1948-04-15 | Improvements in or relating to methods of applying impervious films to articles suchas radio components |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB646599A (en) |
-
1948
- 1948-04-15 GB GB1046348A patent/GB646599A/en not_active Expired
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