Stabilizing composition for chlorine-containing polymers

A substantially metal free stabilizing composition for chlrine containing polymers:

• one or more hydrazides compounds having the followuing formula:
• where
• R1 is selected from
• a C1-C30 alkyl group (linear or branched), a monounsaturated or polyunsaturated C2-C30 alkyl group, a C1-C30 alkyl group containing heteroatoms, a C1-C30 alkyl group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloaliphatic group, a heterocyclic group, one or more halogen atoms, a hydroxy group or an alcoxy group
• a phenyl group, benzyl group, naphtyl group or, toluyl group substituted with —OH, —Cl, -alcoxy, -alkyl, cycloalkyl, —COOR or —OCOR where R is a C1-C12 alkyl group
• R2 is selected from —H or —CO—R3;
• R3 and R4 are independently selected from:
• a C1-C30 alkyl group (linear or branched), a monounsaturated or polyunsaturated C2-C30 alkyl group, a C1-C30 alkyl group containing heteroatoms, a C1-C30 alkyl group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloaliphatic group, a heterocyclic group, one or more halogen atoms, a hydroxy group or an alcoxy group or
• a phenyl group, a naphtyl group or a phenyl group substituted by —OH, —Cl, alcoxy, alkyl, cycloalkyl, —COOR or OCOR where R is a C1-C12 alkyl group;
• X is selected from
• a C1-C30 alkylene group (linear or branched), a monounsaturated or polyinsaturated C2-C30 alkylene group, a C1-C30 alkylene group containing heteroatoms, a C1-C30 alkylene group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloallphatic group, a heterocyclic group, one or morehalogen atoms, a hydroxy group or an alcoxy group or
• an ortho, meta, or para phenylene group, a naphtylene group, a phenylene group substituted by —OH, —Cl, alcoxy, alkyl, cycloalkyl, —COOR or OCOR where R is a C1-C12alkyl group;
• R1 and R2 are linked by a covalent bond when R1 is —CH═CH— and R2 is —CO;
• and a co-stabilizer selected from:
• polyol alcohols, disaccharide alcohols, perchlorate compounds, glycidyl compounds, layered lattice compounds, zeolite compounds, phosphite compounds, beta-diketones, beta ketoesters, mercaptocarboxylic esters, metal soaps or mixtures thereof.

A substantially metal free stabilizing composition for hlorine containing polymers:

• one or more hydrazides compounds of the formula
• where:
• R1 is selected from
• a C1-C30 alkyl group (linear or branched), a monounsaturated or polyunsaturated C2-C30 alkyl group, a C1-C30 alkyl group containing heteroatoms, a C1-C30 alkyl group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloaliphatic group, a heterocyclic group, one or more halogen atoms, a hydroxy group or an alcoxy group
• a benzyl group, a naphtyl group, a toluyl group, a toluyl group substituted with —OH, —Cl, -alcoxy, -alkyl, -cycloalkyl, —COOR or OCOR where R is a C1-C12 alkyl group, or a phenyl group, or a phenyl group substituted with —OH, —Cl, -alcoxy, -alkyl, -cycloalkyl or OCOR where R is a C1-C12 alkyl group
• R2 is selected from —H or CO—R3;
• R3 and R4 are independently selected from:
• a C1-C30 alkyl group (linear or branched), a monounsaturated or polyunsaturated C2-C30 alkyl group, a C1-C30 alkyl group containing heteroatoms, a C1-C30 alkyl group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloaliphatic group, a heterocyclic group, one or more halogen atoms, a hydroxy group or an alcoxy group or
• a phenyl group, a naphtyl group, or a phenyl group substituted by —OH, —Cl, alcoxy, alkyl, cycloalkyl, —COOR or OCOR where R is a C1-C12 alkyl group;
• X is selected from
• a C1-C30 alkylene group (linear or branched), a monounsaturated or polyunsaturated C2-C30 alkylene group, a C1-C30 alkylene group containing heteroatoms, a C1-C30 alkylene group substituted by one or more substituted or unsubstituted phenyl groups, an epoxy function, a cycloaliphatic group, a heterocyclic group, one or more halogen atoms, a hydroxy group or an alcoxy group or
• an ortho, meta, or para phenylene group, a naphtylene group, a phenylene group substituted by —OH, —Cl, alcoxy, alkyl, cycloalkyl, COOR or OCOR where R is a C1-C12alkyl group;
• R1 and R2 are linked by a covalent bond when R1 is —CH═CH— and R2 is —CO;
• and a co-stabilizer selected from:
• polyol alcohols, disaccharide alcohols, perchlorate compounds, glycidyl compounds, layered lattice coumpounds, zeolite compounds, phosphite compounds, beta-diketones, beta ketoesters, mercaptocarboxylic esters, metal soaps or mixtures thereof.