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US 5,665,855 AGranted
Polymers and copolymers originating from the addition of oligomers containing diamino and dihydroxy ends and of bisoxazinones or bioxazolinones, and process for obtaining them
AssigneeElf Atochem S.A.
InventorsMargarita Acevedo, Alain Fradet, Didier Judas
Life of this patent
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Abstract
Disclosed are polymers and copolymers containing at least one repeating unit of the formula ##STR1## in which X is O or NH; R is a single bond or a hydrocarbon chain; R' is a hydrocarbon chain containing one or two carbon atoms, and P is the residue of an oligomer HX--P--XH whose solution viscosity determined in meta-cresol at 30.degree. C. at concentrations of 0.5 g/dl is lower than 0.50 dl/g.sup.-1. Also disclosed is a process for obtaining the polymers and copolymers.
Claims14
A polymer or copolymer comprising at least one repeating unit of the formula:
- ##STR24## in which R is selected from the group consisting of a single bond;
- a hydrocarbon chain --(CH.sub.2).sub.q --, q being an integer between 1 and 10 in which at least carbon atom is unsubstituted or mono- or disubstituted and may contain an aliphatic or an aromatic ring or an olefinic unsaturation;
- an ortho-, meta-, or para-phenylene group;
- and an ortho-, meta- or para- alkylphenylene group,
- R' is a --(CH.sub.2)-- group with p being 1 or 2, in which at least carbon atom is unsubstituted or mono- or disubstituted with an alkyl group selected from the group consisting of methyl, ethyl and propyl;
- or an ortho-phenylene group, and
- the group --X--P--X-- is the residue of a difunctional oligomer HX--P--XH, in which X denotes O or NH and P is an oligomeric chain selected from the group consisting of a polyamide oligomer, a polyester oligomer, a polyether oligomer, a polyetherester oligomer, and a polyblock oligomer of the formula:
- ##STR25## with a .gtoreq.1, wherein said polymer or copolymer is the reaction product by mass addition of at least one oligomer HX--P--XH whose solution viscosity determined in meta-cresol at 30.degree. C. at a concentration of 0.5 g/dl is lower than 0.50 dl g.sup.-1 and whose number average molar mass M.sub.n is between 300 and 5000, with at least one bisoxazinone and bisoxazolinone of the formula:
- ##STR26## in which X, R and R' are as defined above, at a temperature above the melting point of the at least one oligomer, and
- wherein said at least one oligomer is reacted with said at least one bisoxazinone and bisoxazolinone in a proportion such that the ratio ##STR27## is between 0.95 and 1.05.
7 more elements
A process for obtaining a polymer or copolymer comprising at least one repeating unit of the formula:
- ##STR28## in which R is selected from the group consisting of a single bond;
- a hydrocarbon chain --(CH.sub.2).sub.q --, q being an integer between 1 and 10 in which at least one carbon atom is unsubstituted or mono- or disubstituted and may contain an aliphatic or aromatic ring or an olefinic unsaturation;
- an ortho-, meta-, or para-phenylene group;
- and an ortho-, meta- or para-alkylphenylene group,
- R' is a --(CH.sub.2).sub.p -- group with p being 1 or 2, in which at least one carbon atom is unsubstituted or mono- or disubstituted with an alkyl group selected from the group consisting of methyl, ethyl and propyl;
- or an ortho-phenylene group, and
- the group --X--P--X-- is the residue of a difunctional oligomer HX--P--XH, in which X denotes O or NH and P is an oligomeric chain whose solution viscosity determined in meta-cresol at 30.degree. C. at a concentration of 0.5 g/dl is lower than 0.50 dl g.sup.-1 and whose number average molar mass M.sub.n is between 300 and 5000,
- and is the residue of a polyamide oligomer, a polyester oligomer, a polyether oligomer, a polyetherester oligomer, or a polyblock oligomer of the formula:
- ##STR29## with a.gtoreq.1, said process comprising carrying out a bulk addition reaction of at least one oligomer HX--P--XH and at least one bisoxazinone and bisoxazolinone having the formula:
- ##STR30## at a temperature above the melting temperature of said at least one oligomer, and
- at atmospheric pressure under an inert atmosphere,
- wherein said at least one oligomer is reacted with said at least one bisoxazinone and bisoxazolinone in a proportion such that the ratio ##STR31## is between 0.95 and 1.05.
9 more elements
Dependencies are inferred from the claim text.