摘要:
A coating composition containing 10-80% by weight of binder and 20-90% by weight of an organic solvent in which the binder is (1) a chlorosulfonated ethylene vinyl acetate polymer, (2) an epoxy resin, (3) a polyamine curing agent, and (4) a bicyclic amidine. The composition is used as a primer or topcoating for metal substrates and curings at ambient temperatures and provides a finish that has excellent adhesion to the substrate and is tough, durable, weatherable and when pigmented with electrically conductive pigments, can be used as a coating for electrodes used in electrochemical reactions such as grids used in lead acid storage batteries.
摘要:
Thermoplastic coatings are extrusion coated onto substrates, and particularly polypropylene in the form of woven and non-woven fabrics and films or an aluminium foil, using a composition comprising 40 to 70 wt.% of an ethylene polymer such as LDPE, EVA or EAA from 10 to 50 wt.% of a propylene homo- or copolymer and from 10 to 50 wt.% of an olefinic elastomer such as EPDM. Good adhesion is obtained without pretreating the substrate to be coated.
摘要:
Manufacture articles in the form of sheets coated with a composition consisting of:
a) from 75 to 99 parts by weight of a polypropylenic material of melt index comprised between 5 and 60, consisting of a prevailingly isotactic polymer of propylene; b) from 1 to 25 parts b.w. of polyethylene having a density comprising between 0.910 and 0.935, having a melt index comprised between 1 and 10, or of an ethylene-propylene copolymer of the amorphous type, having a melt index comprised between 1 and 50; c) from 0.01 to 0.2 parts b.w. on 100 parts of polymeric composition of an organic sulphide of formula: A-S-B wherein A and B, equal to or different from each other, are aryl, alkyl, alkylaryl groups, at least one of the groups A and B being an aryl containing a functional hydroxyl group in position 2 or 4 with respect to S, and at least one linear or branched alkyl group.
摘要:
Die Erfindung betrifft heißsiegelbare, zur Versiegelung verschiedenartiger Untergründe geeignetes Beschichtungsmittel bestehend aus einerfilmbildenden Dispersion mindestens zweier verschiedener Polymertypen A und X mit jeweils unterschiedlicher Hafteigenschaften in einem organischen Lösungsmittelsystem L, wobei mindestens eine der Polymertypen bei Raumtemperatur mit dem organischen Lösungsmittelsystem unbegrenzt mischbar ist, beide Polymertypen jeweils eine Säurezahl von 0 bis 160 mg KOH pro Gramm Polymerisat besitzen und die Dispersion außer den beiden Polymertypen A und X ein aus Komponenten, die beiden Polymertypen entsprechen, aufgebautes Polymerisat enthält.
摘要:
An aqueous dispersion of improved stability, said dispersion consisting essentially of a mixture of
(A) 10 to 90% by weight of an ethytene/α,β-unsaturated carboxylic acid copolymer containing 12 to 20% by weight on an average of α,β-unsaturated carboxylic acid units or the metal salt thereof, and (B) 90 to 10% by weight of an ethylene/α,β-unsaturated carboxylic acid copolymer containing 5 to 12% by weight on an average of α,β-unsaturated carboxylic acid units or the metal salt thereof,
said mixture containing 8 to 20% by weight on an average, based on the weight of the mixture, of the α,β-unsaturated carboxylic acid units, 30 to 80% of which units are present in the form of metal salts, and said mixture not containing more than 5% by weight, based on the weight of the mixture, of a fraction of the ethylene/a,/3-unsaturated carboxylic acid copolymer having an α,β-unsaturated carboxylic acid unit content of less than 5% by weight or its salt, and more than 10% by weight, based on the weight of the mixture, of a fraction of the ethylene/α,β-unsaturated carboxylic acid copolymer having an α,β-unsaturated carboxylic acid unit content of more than 20% by weight or its salt.
摘要:
Manufacture articles in the form of sheets coated with a composition consisting of: a) from 75 to 99 parts by weight of a polypropylenic material of melt index comprised between 5 and 60, consisting of a prevailingly isotactic polymer of propylene; b) from 1 to 25 parts b.w. of polyethylene having a density comprising between 0.910 and 0.935, having a melt index comprised between 1 and 10, or of an ethylene-propylene copolymer of the amorphous type, having a melt index comprised between 1 and 50; c) from 0.01 to 0.2 parts b.w. on 100 parts of polymeric composition of an organic sulphide of formula: A-S-B wherein A and B, equal to or different from each other, are aryl, alkyl, alkylaryl groups, at least one of the groups A and B being an aryl containing a functional hydroxyl group in position 2 or 4 with respect to S, and at least one linear or branched alkyl group.
摘要:
A hydrocarbon resin consisting essentially of a copolymer of (A) an unsaturated chain hydrocarbon or a cyclic hydrocarbon having a vinylidene group and (B) 9,10-dihydrodicyclopentadiene or its derivative, or a hydrocarbon resin modified by addition reacting an ethylenically unsaturated carboxylic acid or its anhydride, or hydrogen, to the above-mentioned copolymer. The hydrocarbon resin and the modified hydrocarbon resin have a high softening point and a low melt viscosity, and are suitable for use in adhesives and traffic paints.