Hydrogen phosphonates and polymers containing them as flame retardants

Claim 2

A cyclic phosphorus compound having the formula ##STR26## where Y is selected from the group consisting of ##STR27## and where X is selected from the group consisting of ##STR28##

Claim 3

Cyclic phosphorus compound as in claim 1 having the formula ##STR29## where X is the group ##STR30##

Claim 4

Cyclic phosphorus compound as in claim 1 having the formula ##STR31## where X is the group ##STR32##

Claim 5

Cyclic phosphorus compound as in claim 1 having the formula ##STR33## where X is the group ##STR34##

Claim 6

Cyclic phosphorus compound as in claim 1 having the formula ##STR35## where X is the group ##STR36##

Claim 7

The cyclic phosphorus compound ##STR37##

Claim 8

The cyclic phosphorus compound ##STR37##

Claim 9

The cyclic phosphorus compound ##STR38##

Claim 10

The cyclic phosphorus compound ##STR38##

Claim 11

The cyclic phosphorus compound ##STR39##

Claim 12

The cyclic phosphorus compound ##STR39##

Claim 13

The cyclic phosphorus compound ##STR40##

Claim 14

The cyclic phosphorus compound ##STR40##

Claim 15

The cyclic phosphorus compound ##STR41##

Claim 16

The cyclic phosphorus compound ##STR41##

Claim 17

The combination of an organic polymer together with a phosphonate adduct having the formula ##STR42## where Y is selected from the group consisting of ##STR43## and where X is selected from the group consisting of ##STR44##

Claim 18

The combination of an organic polymer together with a phosphonate adduct having the formula ##STR42## where Y is selected from the group consisting of ##STR43## and where X is selected from the group consisting of ##STR44##

Claim 19

The combination of an organic polymer together with the compound ##STR45##

Claim 20

The combination of an organic polymer together with the compound ##STR45##

Claim 21

The combination of an organic polymer together with the compound ##STR46##

Claim 22

The combination of an organic polymer together with the compound ##STR46##

Claim 23

The combination of an organic polymer together with the compound ##STR47##

Claim 24

The combination of an organic polymer together with the compound ##STR47##

Claim 25

The combination of an organic polymer together with the compound ##STR48##

Claim 26

The combination of an organic polymer together with the compound ##STR48##

Claim 27

The combination of an organic polymer together with the compound ##STR49##

Claim 28

The combination of an organic polymer together with the compound ##STR49##

Claim 29

Process for preparing a phosphonate adduct which comprises admixing at 0° C to 100° C formic acid with a phosphorohalidite, having the formula ##STR50## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the resulting intermediate with a member selected from the group consisting of ______________________________________ R.sub.a CH=NR.sub.6 where R.sub.a is an alkyl radical of 1 to 4 carbon atoms, and R.sub.b is a phenyl radical of 6 to 10 carbon atoms, R.sub.c SO.sub.2 NCO where R.sub.c is phenyl with 0 to 2 halogens or phenyl with 0 to 2 nitro groups, or phenyl with 0 to 2 methyl groups, R.sub.d NCO where R.sub.d is phenyl with 0 to 2 halogen atoms, or phenyl with 0 to 2 methyl groups, or an alkyl or alkenyl radical of 1 to 3 carbon atoms, and R.sub.e NCS where R.sub.e is phenyl with 0 to 2 halogen or alkyl or alkenyl of 1 to 3 carbon atoms, ______________________________________ the said treating being conducted in the presence of a basic catalyst.

Claim 30

Process for preparing a phosphonate adduct which comprises admixing at 0° C to 100° C formic acid with a phosphorohalidite, having the formula ##STR50## where R is an alkylene, or haloalkylene group of a 1,2-glycol having from 2 to 8 carbon atoms, or of a 1,3-glycol having from 3 to 8 carbon atoms, and Z is Cl or Br, and thereafter treating the resulting intermediate with a member selected from the group consisting of ______________________________________ R.sub.a CH=NR.sub.6 where R.sub.a is an alkyl radical of 1 to 4 carbon atoms, and R.sub.b is a phenyl radical of 6 to 10 carbon atoms, R.sub.c SO.sub.2 NCO where R.sub.c is phenyl with 0 to 2 halogens or phenyl with 0 to 2 nitro groups, or phenyl with 0 to 2 methyl groups, R.sub.d NCO where R.sub.d is phenyl with 0 to 2 halogen atoms, or phenyl with 0 to 2 methyl groups, or an alkyl or alkenyl radical of 1 to 3 carbon atoms, and R.sub.e NCS where R.sub.e is phenyl with 0 to 2 halogen or alkyl or alkenyl of 1 to 3 carbon atoms, ______________________________________ the said treating being conducted in the presence of a basic catalyst.