Title:
ELECTROSTATIC CHARGE DISSIPATIVE MATERIALS OBTAINED BY VACUUM DEPOSITION OF MONOMERS AND POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2011/037826
Kind Code:
A3
Abstract:
The present invention relates to a process for making electrostatic charge dissipative material comprising the following steps: (a) optionally pretreating a substrate in a plasma field; (b) flash evaporating at least one monomer and at least one hygroscopic additive into a vacuum chamber to produce a vapor; (c) condensing the vapor on the substrate to produce a film of the monomer and the hygroscopic additive coating on the substrate; and (d) curing the monomer of the film to produce a polymeric layer containing hygroscopic additive on the substrate; wherein the condensing step is carried out under vapor-density and residence-time conditions that limit the polymeric layer to a maximum thickness of about 3.0 µm. The electrostatic charge dissipative material can be used to protect electrostatic sensitive electronic components.
Inventors:
BISBIS BENYOUSSEF (LU)
BLETSOS IOANNIS V (US)
BRABBS NOEL STEPHEN (GB)
BLETSOS IOANNIS V (US)
BRABBS NOEL STEPHEN (GB)
Application Number:
PCT/US2010/049226
Publication Date:
July 07, 2011
Filing Date:
September 17, 2010
Export Citation:
Assignee:
DU PONT (US)
BISBIS BENYOUSSEF (LU)
BLETSOS IOANNIS V (US)
BRABBS NOEL STEPHEN (GB)
BISBIS BENYOUSSEF (LU)
BLETSOS IOANNIS V (US)
BRABBS NOEL STEPHEN (GB)
International Classes:
A41D13/008; D06M10/02; A41D31/00; B05D7/24; C08J7/18; D06M10/08; D06M13/256; D06M15/21; D06M15/263; D21H19/16; H05K9/00
Domestic Patent References:
| WO2004097846A2 | 2004-11-11 |
Foreign References:
| US5071699A | 1991-12-10 | |||
| EP1253166A2 | 2002-10-30 |
Other References:
WATSON D ET AL: "SPECIAL MATERIALS HELP MANUFACTURERS TACKLE ESD", ELECTRONIC PACKAGING AND PRODUCTION, CAHNERS PUBLISHING CO, NEWTON, MASSACHUSETTS, US, vol. 30, no. 5, 1 May 1990 (1990-05-01), pages 72 - 75, XP000140647, ISSN: 0013-4945
Attorney, Agent or Firm:
ARMSTRONG, John, E. (Legal Patent Records Center4417 Lancaster Pik, Wilmington Delaware, US)
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