Polymer Formers - FIZ Karlsruhe

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H0226 is Modifying agent, H0000 is Homopolymer and H0088 is Graft copolymer).
S1 R00843 (2) (H0226 OR H0088)
S2 R00964 (2) (H0000 OR H0088)
S3 S1 (3) S2
Special Polymer Descriptor codes
There are three Polymer Descriptor codes (Hnnnn) codes, which should be linked at level 1, in
order to achieve maximum specificity. These three are listed and exemplified below.
Minor component
Grafting polymer former
Macromer as polymer former
Minor component
The Minor component term (H0215) is only applied to components of a copolymer and then
only when the maximum percentage of a polymer former within a copolymer is no greater
than 10%.
Thus an Ethylene copolymer (R00326) containing 1-5% Propylene (R00964), could be
searched as follows:
S1
S2
S3
R00964 (1) H0215
R00326 (2) H0022
S1 (2) S2
where H0215 is Minor component and H0022 is Binary copolymer
Grafting polymer former
The Grafting polymer former term (H0146) should be linked at level 1 to the compound
functioning as the grafting polymer former.
Thus grafting of Acrylonitrile (R00817) onto a Butadiene (R00806) Styrene (R00708) copolymer
would be searched as follows:
S1 R00817 (1) H0146
S2 S1 (2) R00806 (2) R00708 (2) H0033 (2) H0088
where H0146 is Grafting polymer former, H0033 is Ternary or higher copolymer and H0088
is Graft copolymer