| 摘要 |
<p>Polymer composition (A) comprises a novolac, polyepoxide based on bisphenol-A, tetrabromobisphenol-A, bisphenol-F and/or epoxidized novolac, and further components and additives, where (A) further comprises a component (1-15 wt.%, based on the total mixture of phenoxypolymers), and (A) is obtained by (a) mixing polyepoxide and phenoxypolymer, (b) heating the mixture to 70-170[deg] C for 20 minutes to 6 hours and cooling the mixture, (c) adding the novolac(s) at a ratio of 20:80 to 50:50 relative to the polyepoxide and mixing, (d) diluting the mixture and (e) adding additional additives. Polymer composition (A) comprises at least one novolac, at least one polyepoxide based on bisphenol-A, tetrabromobisphenol-A, bisphenol-F and/or epoxidized novolac, and further components and additives, where (A) further comprises a component (1-15 wt.%, based on the total mixture of phenoxypolymers), and (A) is obtained by (a) mixing the polyepoxide and the phenoxypolymer, (b) heating the mixture from step (a) to 70-170[deg] C for 20 minutes to 6 hours and then cooling the mixture, (c) adding the novolac(s) at a ratio of 20:80 to 50:50 relative to the polyepoxide and mixing, (d) optionally diluting the mixture from step (c), and (e) optionally adding additional additives.</p> |
