Thermosetting adhesive and sealant compositions
AssigneeDynamit Nobel Aktiengesellschaft
InventorsHans Huber, Norbert Vollkommer
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Abstract
Disclosed is a thermosetting adhesive and sealant composition of: 20 to 60 wt. % of carboxyl-group-terminated polyesters with preferably at least two carboxyl groups per molecule, with a glass transition temperature below 20.degree. C., 2 to 12 wt. % of polyoxazolines which contain at least two oxazoline groups per molecule, 2 to 40 wt. % of acrylic or methacrylic esters, preferably of polyvalent alcohols, and/or allyl esters of polyvalent carboxylic acids, which can contain preferably peroxides or aliphatic azo compounds as radical formers and, if desired, paraffin and reactive or nonreactive diluents and additives.
Claims16
A thermosetting adhesive and sealant composition comprising:
- (a) 20 to 60 wt.-% of carboxyl-group-terminated polyesters with a glass transition temperature below 20.degree. C.;
- (b) 2.0 to 12 wt.-% of polyoxazolines which contain at least 2 oxazoline groups per molecule, the polyoxazolines being suspended in the polyester;
- (c) 2 to 40 wt.-% of acrylic or methacrylic esters, of monovalent or polyvalent alcohols or allyl esters of polyvalent carboxylic acids including carbonic acid, or mixtures of these compounds;
- (d) 0 to 5 wt.-% of peroxides or aliphatic azo compounds as radical formers;
- and
- (e) 0 to 4 wt.-% of paraffin.
Dependencies are inferred from the claim text.