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Highly branched polyphosphonates

  • US 5,216,113 A
  • Filed: 09/24/1990
  • Issued: 06/01/1993
  • Est. Priority Date: 10/07/1989
  • Status: Expired due to Fees
First Claim
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1. Highly branched polyphosphonate comprisingA) 95 to 99.9% by weight of structural units ##STR24## in which R1 is C1-10 alkyl or C6-12 aromatic ring, each unsubstituted or substituted by --OC1 --C4 alkyl or halogen,D is sulfur or oxygen,d is 0 or 1,n is an integer of 2 to 1,000 andX corresponds to ##STR25## in which Y is a single bond or Y is C1-3 alkylene, C5-12 cycloalkylene or O, S, CO, SO2,R'"'"' and R" independently of one another represent C1-10 alkyl, halogen, phenyl or hydrogen,a is 0 to 1, andt1 and t2 independently of one another represent 0, 1, 2, 3 or 4 orX is a naphthylene or phenolphthalein residue, andB) 0.1 to 5% by weight structural units corresponding to at least one of (II) through (VI) as follows:

  • ##STR26## in which R4 is hydrogen or C1-10 alkyl which is unsubstituted or substituted by --O--CH1-4 alkyl, hydrogen or --CH2 OH,Re is a difunctional group corresponding to ##STR27## in which y and z independently of one another represent 0, 1, 2, 3, 4 or 5,b is 0 or 1,B represents O, S, SO2 or NRj andRf, Rg, Rh, Ri and Rj represent hydrogen, C1-6 alkyl or C6-12 aryl, wherein the alkyl or aryl is unsubstituted or substituted by --O--C1-4 alkyl or halogen,Rm is an oligomeric or polymeric group to which the phosphorus is bonded either directly or through a C1-10 alkyl chain, the oligomeric or polymeric group being based on unsaturated organic compounds and contains up to 1,000 carbon atoms,Rt is the residue of an organic compound derived from amines, diamines, triamines, oligo- or polyamines and contains up to 1,000 carbon atoms,q is an integer of greater than 2,n is 0 or 1,x is an integer of 2 to 1,000.

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