Vacuum deposition and curing of liquid monomers apparatus

• US 5,547,508 A
• Filed: 11/17/1994
• Issued: 08/20/1996
• Est. Priority Date: 08/21/1992
• Status: Expired due to Term

• Current Assignee: Battelle Memorial Institute
• Original Assignee: Battelle Memorial Institute
• Inventors: Affinito, John D.
• Primary Examiner(s): EDWARDS, LAURA ESTELLE
• Application Number:
  US08/341,803
• Time in Patent Office: 642 Days
• Field of Search: 118/50, 118/641, 118/58, 118/64, 118/66, 118/612, 118/110, 118/118, 118/200, 118/244, 118/300, 118/413, 427/124, 427/126.3, 427/255.5, 427/255.6, 427/294, 156/285, 156/382
• US Class Current: 118/50
• CPC Class Codes: B05D 3/0493 using vacuum
• CPC Class Codes: B05D 5/068 achieved by multilayers B05D5/066 takes precedence
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

The present invention is the formation of solid polymer layers under vacuum. More specifically, the present invention is the use of "standard" polymer layer-making equipment that is generally used in an atmospheric environment in a vacuum, and degassing the monomer material prior to injection into the vacuum. Additional layers of polymer or metal or oxide may be vacuum deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteristics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for curing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced monomer wetting angle that facilitates spreading of the monomer and provides a smoother finished surface.

Claims

1. An apparatus for depositing a liquid monomer as a layer, comprising:

(a) a moving substrate,

(b) a vacuum chamber placed about said moving substrate,

(c) means for degassing the liquid monomer, and

(d) means for depositing a first layer including a nozzle for flowing the degassed liquid monomer onto said moving substrate within the vacuum chamber.

2. The apparatus as recited in claim 1, further comprising:

additional means for vacuum depositing metal or for depositing oxide onto said first layer, and a means for depositing further layers of degassed liquid monomer onto said vacuum deposited metal or oxide, together with means for curing the degassed liquid monomer layers.

3. The apparatus as recited in claim 1, further comprising a mechanical liquid monomer spreading apparatus within the vacuum chamber.

4. The apparatus as recited in claim 3 wherein said mechanical liquid monomer spreading apparatus is selected from the group of roll coaters, wire wound rods, doctor blade coaters, and slotted die coaters.

5. The apparatus as recited in claim 1, further comprising:

means for curing, within the vacuum chamber, said liquid monomer and forming a first solid polymer layer.

6. The apparatus as recited in claim 1, further comprising:

additional means for vacuum depositing a metal or oxide layer onto said first layer within the vacuum chamber.

7. An apparatus for depositing a liquid monomer as a layer, comprising:

(a) a moving substrate,

(b) a vacuum chamber placed about said moving substrate,

(c) means for degassing the liquid monomer,

(d) means for depositing a first layer of degassed liquid monomer onto said moving substrate within the vacuum chamber, and

(e) a mechanical liquid monomer spreading apparatus within said vacuum chamber for spreading deposited degassed liquid monomer on said moving substrate.

8. The apparatus as recited in claim 7, wherein said mechanical liquid monomer spreading apparatus is selected from the group of roll coaters, wire would rods, doctor blade coaters, and slotted die coaters.

9. The apparatus as recited in claim 7, further comprising:

additional means for vacuum depositing a metal or oxide layer onto said first layer within the vacuum chamber.

10. The apparatus as recited in claim 9, further comprising:

means for depositing further layers of degassed liquid monomer onto said vacuum deposited metal or oxide, together with means for curing the degassed liquid monomer layers.

11. An apparatus for depositing a liquid monomer as a layer, comprising:

(a) a moving substrate,

(b) a vacuum chamber placed about said moving substrate,

(c) means for degassing the liquid monomer,

(d) means for depositing a first layer including a nozzle for flowing the degassed liquid monomer onto said moving substrate within the vacuum chamber, and

(e) a means for vacuum depositing a metal or oxide layer onto said monomer layer.

12. The apparatus as recited in claim 11, further comprising a mechanical liquid monomer spreading apparatus within the vacuum chamber.

13. The apparatus as recited in claim 12, wherein said mechanical liquid monomer spreading apparatus is selected from the group of roll coaters, wire wound rods, doctor blade coaters, and slotted die coaters.

14. The apparatus as recited in claim 11, further comprising:

means for depositing further layers of degassed liquid monomer onto said vacuum deposited metal or oxide, together with means for curing the degassed liquid monomer layers.