| http://www.w3.org/ns/prov#value | - 3F6O)t??? wherein p???, q??? and t??? are integers such as to give products having the boiling point indicated in a), p???/q??? is in the range 5-0.3, t??? can be equal to 0 and q???/(q???+p???+t???) lower than or equal to {fraction (1/10)} and the t???/p??? ratio is from 0.2 to 6; c) ???(CR1R2CF2CF2O)n??? wherein R1 and R2 have the above indicated meaning, and n is an integer such as to give prod
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