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US 5,395,887 AGranted
Process for cross-linking chlorinated (CO)polymers, cross-linkable compositions and shaped objects
AssigneesCentre National De La Recherche Scientifique, Sotra Industries
InventorsChristian Gondard, Alain Michel
Life of this patent
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Abstract
A method for cross-linking chlorinated (co)polymers involves reacting such (co)polymers at between 50.degree. and 230.degree. C. in the absence of solvent with an organometallic amino-type derivative of tin, lead, antimony or bismuth to provide cross-linked compositions and shaped objects.
Claims20
A process for cross-linking a chlorinated (co)polymer or a mixture of chlorinated (co)polymers comprising
- reacting an amino organometallic compound of formula (I):
- (R).sub.n Me(NR").sub.m-n R' (I)
- in which:
- Me represents a tin, lead, antimony or bismuth atom,
- a represents a linear or branched alkyl radical containing 1 to 8 carbon atoms, an aralkyl radical containing 3 to 12 carbon atoms, an aryl containing 6 to 14 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms or a cycloalkylalkyl radical containing 4 to 8 carbon atoms,
- R' is divalent and represents a linear or branched alkyl radical containing 1 to 20 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, a cycloalkylalkyl radical containing 4 to 8 carbon atoms, an arylcycloalkyl radical containing 10 to 20 carbon atoms or a polymer chain selected from the group consisting of polyamides, polyurethanes, polyureas and copolymers thereof,
- m is equal to 4 and n is equal to 1 or 2, when Me represents tin or lead,
- m is equal to 5 and n is equal to 1, 2 or 3 when Me represents bismuth or antimony,
- and R" represents a hydrogen atom or one of the meanings of R',
- with said chlorinated (co)polymer, between 50.degree. and 230.degree. C., and in the absence of a solvent.
7 more elements
A cross-linkable composition, comprising a chlorinated (co)polymer or a mixture of a chlorinated (co)polymers;
- and an amino organometallic compound of formula (I):
- (R).sub.n Me(NR").sub.m-n R'
- in which:
- Me represents a tin, lead, antimony or bismuth atom,
- R represents a linear or branched alkyl radical containing 1 to 8 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, an aryl radical containing 6 to 14 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms or a cycloalkylalkyl radical containing 4 to 8 carbon atoms,
- R' is divalent and represents a linear or branched alkyl radical containing 1 to 20 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, a cycloalkylalkyl radical containing 4 to 8 carbon atoms an arylcycloalkyl radical containing 10 to 20 carbon atoms or a polymer chain selected from the group consisting of polyamides, polyurethanes, polyureas and copolymers thereof,
- m is equal to 4 and n is equal to 1 or 2, when Me represents tin or lead,
- m is equal to 5 and n is equal to 1, 2 or 3 when Me represents bismuth or antimony,
- and R" represents a hydrogen atom or one of the meanings of R'.
6 more elements
A cross-linkable composition comprising (a) a chlorinated copolymer or a mixture of chlorinated copolymers, and (b1) an amino organo-metallic compound of formula
- (R).sub.n Me(NR").sub.m-n R',
- or a (b2) mixture of (i) an organometallic oxide and (ii) a copolymer containing at least 2 NH functions capable of reacting with said organometallic oxide to form in situ said amino organo metallic compound, wherein Me represents a tin, lead, antimony or bismuth atom,
- R represents a linear or branched alkyl radical containing 1 to 20 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, an aryl radical containing 6 to 14 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms or a cycloalkylalkyl radical containing 4 to 8 carbon atoms,
- R' is divalent and represents a linear or branched alkyl radical containing 1 to 20 carbon atoms, an aralkyl radical containing 7 to 14 carbon atoms, a cycloalkyl radical containing 3 to 12 carbon atoms, a cycloalkylalkyl radical containing 4 to 8 carbon atoms, an arylcycloalkyl radical containing 10 to 20 carbon atoms or a polymer chain selected from the group consisting of polyamides, polyurethanes, polyureas and copolymers thereof,
- m is equal to 4 and n is equal to 1 or 2, when Me represents tin or lead,
- m is equal to 5 and n is equal to 1, 2 or 3 when Me represents bismuth or antimony,
- and R" represents a hydrogen atom or one of the meanings of R'.
4 more elements
Dependencies are inferred from the claim text.