prov:value
| - For that purpose all kinds of natural, modified natural or synthetic resins may be used, e.g. cellulose derivatives such as ethylcellulose, cellulose esters, carboxymethylcellulose, starch ethers, polymers derived from ??,??-ethylenically unsaturated compounds such as polyvinyl chloride, after chlorinated polyvinyl chloride, ccpolymers of vinyl chloride and vinylidene chloride, copolymers of vinyl
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