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Patent
Title
Teilkristallines Polyether-Copolymer auf Basis von Propylenoxid und daraus herstellbare Duromere
Other Title
Adhesive composition for use e.g. in cars, aircraft, buildings, furniture or packaging, based on partly crystalline copolymers of propylene oxide and other epoxides with reactive groups, e.g. glycidyl methacrylate.
Abstract
Durch Copolymerisation von Propylenoxid mit einem Epoxid mit einer funktionellen Gruppe lassen sich bei Einsatz eines Katalysators, der in der Lage ist, Propylenoxid isotaktisch zu polymerisieren, teilkristalline Polypropylenoxide mit funktionellen Gruppen herstellen. Alternativ erfolgt eine Copolymerisation von Propylenoxid mit einem optisch aktiven Alkohol. Ueber die enthaltenen funktionellen Gruppen, z. B. Hydroxylgruppen, Trialkoxysilangruppen oder polymerisationsfaehige Doppelbindungen, laesst sich das teilkristalline Polypropylenoxid zu Duromeren und Elastomeren vernetzen. Die erfindungsgemaessen Copolymere lassen sich bevorzugt in Klebstoffen, Matrixharzen, Dichtstoffen, Lacken, Vergussharzen einsetzen.
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WO2005078036 A UPAB: 20051019 NOVELTY - Adhesive compositions (I) based on partly crystalline polyether copolymers (II) which are obtained by (1) copolymerisation of propylene oxide (PO) with another epoxide (III) with at least one substituent (X) other than methyl or hydrogen, optionally followed by (2) further treatment in which the substituent(s) (X) is/are chemically altered. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for (1) duromers obtained by crosslinking (I) (2) partly crystalline copolymers (II) obtained by copolymerisation of PO with another epoxide (III) in presence of a catalyst which promotes the isotactic polymerisation of PO, optionally followed by further modification as above. USE - As sealing materials or as adhesives in motor vehicle construction, building technology, aeronautics, furniture making and paper processing, or as packaging adhesives (claimed). ADVANTAGE - Moisture-crosslinkable adhesive compositions with high adhesive bond strengths and better resistance to hydrolysis than prior-art polyol-based adhesives.
Inventor(s)
Hartwig, A.
Rischka, K.
Link to:
Patent Number
102004006531
Publication Date
2005
Language
German