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Title
Kaschierklebemassen mit Barriereeigenschaften gegenueber Gasen und Daempfen
Date Issued
2005
Author(s)
Amberg-Schwab, S.
Katschorek, H.
Burger, A.
Patent No
2000-10064573
Abstract
Die Erfindung stellt eine Kaschierklebemasse aus anorganisch kondensierbaren bzw. kondensierten, ggf. organisch haertbaren Silanen und einem mineralischen, plaettchenfoermigen, modifizierten Fuellstoff bereit, der in die Kaschierklebemasse entweder anorganisch einkondensierbar und/oder organisch einpolymerisierbar und/oder durch Ionenbindung einbindbar ist. Mit dieser Kaschierklebemasse lassen sich kaschierte Verbundsysteme mit verbesserter Barrierewirkung gegenueber Gasen oder Daempfen erhalten.
EP 1217052 A UPAB: 20021108 NOVELTY - In an adhesive coating (A) prepared from, or using, silanes (B) by at least partial hydrolysis or condensation, the new feature is the presence of inorganic, platelet-shaped modified filler(s) which are either: (i) inorganically condensable and/or organically polymerizable and/or ionically bindable into the condensate from (B) or (ii) already so incorporated. DETAILED DESCRIPTION - In an adhesive coating (A) prepared from, or using, silanes (B) by at least partial hydrolysis or condensation, the new feature is the presence of inorganic, platelet-shaped modified filler(s) which are either: (i) inorganically condensable and/or organically polymerizable and/or ionically bindable into the condensate from (B) or (ii) already so incorporated. (B) are of formulae (I)-(III). XaRbSiR14-a-b (I) (P)+ (XaRbSiR24-a-b)- (II) (XaRbSiR34-a-b)+ (Q)- (III) X = hydrolyzable group; R = optionally substituted alkyl, alkenyl, aryl, alkaryl or aralkyl; R1 = C-bound organic residue containing a group that takes part in an organic polymerization reaction; R2 = negatively charged organic group; R3 = positively charged organic group; P+ = (in)organic cation; Q- = (in)organic anion; a = 1-3; b = 0-2; at least for (II) and (III), a + b = 3 INDEPENDENT CLAIMS are also included for the following: (1) Method for preparing (A). (2) Preparation of a coated composite system using (A); (3) Composites produced by method (2). USE - The adhesive coatings are used to produce coated composites, e.g. for use in food packaging. ADVANTAGE - The coating improves barrier properties against gas and vapor.
Language
de
Patenprio
DE 2000-10064573 A: 20001222