Dsm N.v.

Rudolfus A T M Van Benthem

Johan F G A Jansen

Peter E Froehling

Johan Rietberg

Aylvin J A A Dias

Dirk A W Stanssens

Jacobus Antonius Loontjens

Bartholomeus J M Plum

Marten Houweling

Saskia Udding-Louwrier

Theodoor H Meij

Patrick H M Hendriks

The invention relates to a radiation curable powder paint binder composition comprising a radiation curable compound being a mono or multi valent carboxylic ester of a &bgr;, &ggr;, &dgr;, or &egr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;, &bgr;-ethylenically unsaturated carboxylic acid.

Powder paint binder composition

The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibers.

Condensation polymer containing dialkylamide endgroups, process for producing said condensation polymers and applications thereof

The invention relates to a process for the preparation of an aromatic bisoxazoline in which, in a first step, an aromatic carboxylic acid or an ester hereof reacts with an alkanolamine, after which the hydroxyalkylamide obtained is in a second step converted into an aromatic bisoxazoline in the presence of a catalyst. The catalyst is phosphinic acid, a (C -C ) alkyl phosphinic acid, a (C -C )aryl phosphinic acid or an ester or an anhydride derived from one of these acids.

Preparation of an aromatic bisoxazoline

A condensation polymer, obtained through reaction of an alkanolamide and a cyclic anhydride to form a hydroxyalkylamide, followed by polycondensation of the hydroxyalkylamide, has at least two carboxylic acid end groups connected to an alkylamide groups via an ester linkage. The polymers may be used in powder paint compositions.

Condensation polymer containing esteralkylamide-acid groups

The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibres.

The invention relates to a linear or branched polymer containing ester groups and at least one amidegroup in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of &gE;800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a &bgr;-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.

Condensation polymer containing hydroxyalkylamide groups

The invention relates to a linear or branched polymer containing ester groups and at least one amide group in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of &gE;800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a &bgr;-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.

The invention relates to a radiation curable composition comprising a mono or mulit valent carboxylic ester of a &bgr;-hydroxyalkylamide group containing compound, in which the carboxylic ester is derived from an &agr;,&bgr;-ethylenically unsaturated carboxylic acid. A coating composition based on this composition has a high rate of polymerisation and shows the desired chemical and mechanical properties.

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Sittard, Netherlands

Rudolfus A T M Van Benthem