摘要 |
Elastomers (I) with bound ester and urethane gps. contain on (I) 0.1-10% (all pts.wt.) of at least one phenylenebisoxazoline (II) of formula (A) and/or (B), where R1-R3 (same or different) are H, Ph or 1-5C alkyl. Also claimed is the prepn. of polyurethanes (III) contg. bound ester gps. by reacting (A) organic polyisocyanates with (B) higher molecular at least difunctional, polyesterols and (C) chain lengthening agents and/or crosslinking agents in presence of (D) a (II), opt. in presence of (E) blowing agents, (F) catalysts, (G) auxiliaries and/or additives. USE/ADVANTAGE - Used as moulded articles, partic. in machinery construction and transport industries, esp. as flexible pipes, skins, sheets, spring elements, buffers and top coats; foams in furniture, household appts., shoe and motor car industries, e.g. in seats, insulating or cladding materials, sun blinds, head rests, shoe soles, ski cores and receptacles for skis. (I) and (III) have improved hydrolysis resistance and mechanical properties (partic. tensile strength, extension to break), (II) are soluble in starting materials or can be readily incorporated in (I) granulate, do not affect morphology of (I) or (III) and do not migrate.
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申请人 |
BASF AG, 6700 LUDWIGSHAFEN, DE |
发明人 |
LEHRICH, FRIEDHELM, DR., 6720 SPEYER, DE;HORN, PETER, DR., 6900 HEIDELBERG, DE;VORSPOHL, KLAUS, DR., 6700 LUDWIGSHAFEN, DE |