Verwendung hydroxylgruppenhaltiger Phosphinate als und zur Herstellung von Flammschutzmitteln, die sich zur Einbindung in Polymerharze eignen, damit hergestellte neue Phosphinate mit organisch polymerisierbaren Gruppen sowie flammgeschuetzte Polymerharze

EP 1544227 A UPAB: 20050728 NOVELTY - Phosphinates containing hydroxyl groups are used for the production of polymerisable phosphinates or as components of polymers into which they are bonded by esterification of free hydroxyl groups or conversion of these groups into urethane groups. DETAILED DESCRIPTION - The use of phosphinates of formula (I) for the production of polymerisable phosphinates of formula ((R1O)(R2)P(O)(CHR3)m- CR5(OR asterisk ))nR4 (V) or as components of polymers in which ((R1O)(R2)P(O)(CHR3)m-CR5(OH))nR4 (I) is bound into the polymer by esterification of free hydroxy groups or by conversion of these groups into urethane groups. R1, R2 = optionally substituted alkyl, aryl, aralkyl, alkylaryl or alkylarylalkyl, preferably with 1-20C; R3, R5 = H or groups as listed for R1/R2; R4 = H or an organic residue with at least one carbon, which is substituted with n phosphorus-containing residues and optionally other substituents (if R4 contains more than 1 carbon, adjacent C atoms may be separated by O, S or amino groups); m = 0 or 1; n = 1-6; OR asterisk = a residue containing an ester or urethane group which can be bound into an organic polymer. if n is more than 1, R4 is not H and (I) is used for the production of (V) as above. INDEPENDENT CLAIMS are also included for: (1) phosphinates of formula (V); (2) copolymers obtained by the copolymerisation of (I) with other monomers, oligomers or polymers; (3) cyanate, polyurethane or polyester resins obtained from (I); (4) addition or condensation polymers obtained by using (V); (5) a method for the production of compounds of formula ((R1O)(R2)P(O)-(CHR3)m-CR5(-O(O)C-R asterisk asterisk ))nR4 (VII) by esterification of (I) with carboxylic acids of formula R asterisk asterisk COOH; (6) a method for the production of compounds of formula ((R1O)(R2)P(O)-(CHR3)m-CR5(-O-R asterisk asterisk ))nR4 (VIII) by reacting (I) with an alkali metal and then reacting the resulting metal alcoholate with a halide of formula R asterisk asterisk Hal; (7) a method for the production of compounds of formula ((R1O)(R2)P(O)-(CHR3)m-CR5(-O(O)C-NH-R asterisk asterisk ))nR4 (X) by reacting (I) with isocyanates of formula R asterisk asterisk NCO; R asterisk asterisk = as for R asterisk ; Hal = Cl, Br or I. USE - For the production of flameproof polymer resins with high fracture toughness, especially (meth)acrylates, polyesters, polyamides, polyurethanes and silicone resins, and as covalently-bonded components of polymers (claimed). ADVANTAGE - The use of compounds with a high phosphorus content which can be incorporated into polymer structures (either by reaction with suitable monomers or by direct insertion into polymers) enables the production of polymers and resins with improved fire resistance, low sensitivity to hydrolysis and high fracture toughness