The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 1996
Filed:
Jul. 22, 1993
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
The present invention relates to aminoacrylates which have a viscosity of 200 to 3000 mPa.s at 23.degree. C. and 100% solids, a content of olefinic double bonds (calculated as C=C, molecular weight=24) of 8 to 20% by weight and a nitrogen content of 0.4 to 2.0% by weight, and which are prepared by an addition reaction by reacting at a molar ratio of primary amino groups from component a) to olefinic double bonds from component b) of 0.05:1 to 0.25:1 a) mono- or diamines having a molecular weight of 31 to 300 and having aliphatically bound amino groups with b) acrylic esters of polyhydric alcohols which have been prepared at a COOH/OH equivalent ratio of 0.8:1 to 1:1 from b1) acrylic acid and b2) ether-alcohols which have 3 or 4 hydroxyl groups and a molecular weight of 136 to 1000, possess at least one ethylene oxide unit --CH.sub.2 --CH.sub.2 --O-- as part of the ether structure and do not contain propylene oxide units --CH.sub.2 --CH(CH.sub.3)--O--. The present invention also relates to a process for the preparation these aminoacrylates.