Adhesive for Bonding PP Plastic to Carpet

Here's a whole page of polypropylene adhesives from Global Spec:

http://manufacturing-fabrication.globalspec.com/Industrial-Directory/polypropylene_adhesive

Master Bond 40

I used to work for an automotive industry supplier, providing modeled carpets. We used ultra-sonic welding to attach plastic and vinly to the carperts. If you have a lot to do or are thinking of mass production you might want to consider this as an option.