Compositions containing basic metal salts and/or non-Newtonian colloidal disperse systems and vinyl aromatic containing polymers
First Claim
1. A composition comprising a mixture of(B) at least one non-Newtonian colloidal disperse system comprising(B-1) solid metal-containing colloidal particles,(B-2) a liquid dispersing medium, and(B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent;
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Abstract
The present invention relates to modified non-Newtonian colloidal disperse systems exhibiting improved thickening power, particularly when diluted. These compositions are useful as high-solids, thermosetting caulks, molding compositions, extruding compositions and the like, but are particularly suitable for use as high solids thermosetting coating compositions. These coating compositions are heat-stable and sag-resistant.
The compositions of this invention comprise a mixture of
(B) at least one non-Newtonian colloidal disperse system comprising
(B-1) solid metal-containing colloidal particles,
(B-2) a liquid dispersing medium, and
(B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent; and
(C) at least one hydrogenated block copolymer of a vinyl aromatic monomer and an aliphatic conjugated diene.
Optionally, the compositions also contain (D) a substantially inert, normally liquid diluent.
The invention also relates to methods of coating metal surfaces with the compositions of the invention described above as well as compositions comprising mixtures of neutral and/or basic metal salts of organic acidic materials and the copolymers (C) described above.
144 Citations
108 Claims
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1. A composition comprising a mixture of
(B) at least one non-Newtonian colloidal disperse system comprising (B-1) solid metal-containing colloidal particles, (B-2) a liquid dispersing medium, and (B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent; - and
(C) at least one hydrogenated block copolymer of a vinyl aromatic monomer and an aliphatic conjugated diene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A composition comprising a mixture of
(B) a non-Newtonian colloidal disperse system comprising (B-1) solid metal-containing colloidal particles predispersed in (B-2) a liquid dispersing medium, and (B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent, and (C) at least one hydrogenated block copolymer of a styrene and an aliphatic conjugated diene, said copolymer having from 2 to about 5 polymer blocks with at least one polymer block of said styrene and at least one polymer block of said hydrogenated aliphatic conjugated diene, the content of said styrene in said copolymer being in the range of from about 20% to about 70% by weight and the content of said diene being in the range of from about 30% to about 80% by weight, the number average molecular weight of said copolymer being in the range of about 10,000 to about 500,000.
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52. A method of protecting metal from corrosion which comprises applying to said metal, a composition comprising a mixture of
(A) at least one neutral or basic metal salt of an acidic organic compound or mixtures of said neutral and/or basic metal salts, or (B) at least one non-Newtonian colloidal disperse system comprising (B-1) solid metal-containing colloidal particles, (B-2) a liquid dispersing medium, and (B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar subtituent; - and
(C) at least one hydrogenated block copolymer of a vinyl aromatic monomer and an aliphatic conjugated diene. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 107)
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86. A method of coating metal surfaces to retard corrosion thereof which comprises applying to the metal surface, a composition comprising a mixture of
(B) a non-Newtonian colloidal disperse system comprising (B-1) solid metal-containing colloidal particles predispersed in (B-2) a liquid dispersing medium, and (B-3) at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent, and (C) at least one hydrogenated block copolymer of a styrene and an aliphatic conjugated diene, said copolymer having from 2 to about 5 polymer blocks with at least one polymer block of said styrene and at least one polymer block of said hydrogenated aliphatic conjugated diene, the content of said styrene in said copolymer being in the range of from about 20% to about 70% by weight and the content of said diene being in the range of from about 30% to about 80% by weight, the number average molecular weight of said copolymer being in the range of about 10,000 to about 500,000.
Specification