| abstract |
The invention relates to the use of a phosphorous compound of formula (I) as a flame retardant, wherein the symbols of formula (I) have the following meanings: a group Y is -P(=X<2>)SR<3>R<4>, H, a straight-chain or branched C1-C12 alkyl group, C5-C6 cycloalkyl, C6-C12 aryl, benzyl, wherein the four last cited groups are unsubstituted or substituted by one or more radicals from the groupC1-C4 alkylorC2-C4 alkenylene; R<1>, R<2>, R<3> and R<4> are the same or different hydrogen, OH, C1-C16-Alkyl, C2-C16-Alkenyl, C1-C16-Alkoxy, C2-C16-Alkenoxy, C3-C10-Cycloalkyl, C3-C10-Cycloalkoxy, C6-C10-Aryl, C6-C10-Aryloxy, C6-C10-Aryl-C1- C16-Alkyl, C6-C10-Aryl-C1-C16-Alkoxy, SR<9>, COR<10>, COOR<11>, CONR<12>R<13> or two radicals R<1>, R<2>, R<3>, R<4> form a ring system together with the phosphorous atom to which they are bound or the group P-O-A-O-P; R<5>, R<6>, R<7>, and R<8> are the same or different H, C1-C16-Alkyl, C2-C16-Alkenyl, C1-C16-Alkoxy, C2-C16-Alkenoxy; R<9>, R<10>, R<11>, R<12>, and R<13> are the same or different H d-de-Alkyl, C2-C16- Alkenyl, C6-C10-Aryl, C6-C10-Aryl-C1-C16-Alkyl, C6-C10- Aryl-C1-C16-Alkoxy; X<1>, and X<2> are the same or different S or O; r, and s are the same or different 0 or 1; and X<3>, X<4>, X<5>, and X<6> are the same or different S or O and n is a whole number from 1 to 50. |