Browse Prior Art Database

Trialkoxysilylpropyl (Polyethylene-Imine) - A New Adhesion Promoter

IP.com Disclosure Number: IPCOM000100269D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 1 page(s) / 27K

Publishing Venue

IBM

Related People

Anderson, H: AUTHOR [+4]

Abstract

The adhesion promoter described in this article advances the present state of polysulfone/polyimide-oxide/nitride adhesion technology.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Trialkoxysilylpropyl (Polyethylene-Imine) - A New Adhesion Promoter

       The adhesion promoter described in this article advances
the present state of polysulfone/polyimide-oxide/nitride adhesion
technology.

      The disclosed coupling agent, (N-trimethoxysilylpropyl)-poly-
ethylene-imine (PEI-Si), is an oligomeric adhesion-promoting system.
PEI-Si overcomes delamination problems previously experienced with
the use of the more commonly employed A1100
(2-aminopropyltrieth-oxysilane) coupling agent.

      PEI-Si can be applied from aqueous-methanolic solution (1-5%
concentration) on various substrates prior to application of
polymeric coatings.  It can also be mixed in aqueous solution with
A1100 at 1.75% total concentration (1.25% PEI-Si + 0.5% A1100) and
the mixture applied as an adhesion promoter for PMDA-ODA
(pyromellitic dianhydride- oxydianiline) polyamic acid coating to
obtain very high peel strengths (N181 gms/mm) for fully cured
polyimide films on thermally grown oxide or LPCVD nitride and ceramic
substrate surfaces.