Cohesive bonding process for forming a laminate of a wear resist

Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4289088, 49441, B32B 2732

Patent

active

049237594

ABSTRACT:
A polymer laminate produced by crosshead extrusion suitable for wear resistant applications such as a vehicle glass run channel comprises a layer of a weather resistant rubber such as an ethylene-propylenediene (EPDM) rubber and a layer of a wear resistant thermoplastic such as polypropylene. The laminate is passed through an oven at an elevated temperature sufficient to cure the EPDM rubber, for example, at about 375.degree. F., with ambient temperature cooling fluid being blown over the exposed surface of the polypropylene thermoplastic. The interior polypropylene surface or interface is heated by the EPDM rubber which is at a high temperature as a result of the heat of extrusion and heat generated by cure thereof. As a result, the polypropylene interior surface or interface melts and causes it to flow and form a mechanical bond with the EPDM rubber while the exposed surface as well as a substantial portion of the polypropylene is kept from melting by the cooling fluid. The EPDM rubber can be extruded in the form of a channel having a longitudinal web which supports and is bonded to the laminated polypropylene wear strip to form a glass run channel.

REFERENCES:
patent: 3624964 (1971-12-01), Bordner et al.
patent: 3659983 (1972-05-01), McLain et al.
patent: 3918206 (1975-11-01), Dochnahl
patent: 4104098 (1978-08-01), Hush et al.
patent: 4296062 (1981-10-01), Gauchel et al.
patent: 4538380 (1985-09-01), Colliander

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Cohesive bonding process for forming a laminate of a wear resist does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cohesive bonding process for forming a laminate of a wear resist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cohesive bonding process for forming a laminate of a wear resist will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2348545

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.