Proportion of fossil raw materials in plastics

Fossil raw materials include crude oil, natural gas and coal. They are processed into plastics, chemicals or bitumen.

Synthetic plastics are produced from monomers by polymerisation (polyaddition, polycondensation, etc.). The starting materials are fossil raw materials, mostly cracked naphtha.
Synthetic resins are the raw material for plastics. In construction chemicals, plastics are often still in an uncured form as synthetic resin before being installed. This synthetic resin content must also be taken into account here.
If the plastics used are made entirely or partly from renewable raw materials, they can be divided proportionally between ‘proportion of renewable raw materials in plastics’ and ‘proportion of fossil raw materials in plastics’ or allocated exclusively to the ‘proportion of fossil raw materials in plastics’.

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