Patent EP0121083A1 successfully refreshed from Google Patents.
EP0121083A1
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EP
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Low-temperature crosslinking of water-borne resins
Assignee: Union Carbide Corp
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Filing: 1984-02-23
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Granted: —
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Expires: 2004-02-23
Abstract
Abstract Carboxylated latex resins and neutralized carboxylated water-soluble polymers are crosslinked with aliphatic or cycloaliphatic polyfunctional polycarbodiimides or mixed aliphatic-cycloaliphatic polyfunctional polycarbodiimides.
Inventors
- 👤 Stuart Lansing Watson, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 12:33
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C08J; C08J3/00; C08J3/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
114 words
Methoa for crosslinking water-borne, carboxyl-containing latex resins or neutralized carboxylated water-soluble organic resins which comprises: (a) blending said resins at ambient temperatures with about 0.5 to about 30 parts per 100'parts of said resins of an emulsified or water-soluble polyfunctional polycarbodiimide derived from the reaction of mono-di- and tri-cycloaliphatic or saturated aliphatic isocyanates wherein the cycloaliphatic moieties contain from 5 to about 7 carbons and can be substituted with alkyl having 1 to about 6 carbons, and oxygen and the saturated aliphatic moieties contain from 1 to about 18 carbons wherein the mono-and triisocyanates are optional, and (b) exposing the resultant blend to allow volatilization of certain formulated materials resulting in a crosslinked product.
Claim 2
Dependent Claim
114 words
Methoa for crosslinking water-borne, carboxyl-containing latex resins or neutralized carboxylated water-soluble organic resins which comprises: (a) blending said resins at ambient temperatures with about 0.5 to about 30 parts per 100'parts of said resins of an emulsified or water-soluble polyfunctional polycarbodiimide derived from the reaction of mono-di- and tri-cycloaliphatic or saturated aliphatic isocyanates wherein the cycloaliphatic moieties contain from 5 to about 7 carbons and can be substituted with alkyl having 1 to about 6 carbons, and oxygen and the saturated aliphatic moieties contain from 1 to about 18 carbons wherein the mono-and triisocyanates are optional, and (b) exposing the resultant blend to allow volatilization of certain formulated materials resulting in a crosslinked product.
Claim 3
Dependent Claim
21 words
Method claimed in claim 1 wherein the molar ratio of monoisocyanate:diisocyanate: is in the range of about 2:1 to about 2:10.
Claim 4
Dependent Claim
19 words
Method claimed in claim 1 or 2 wherein the monoisocyanate is butyl isocyanate and the diisocyanate is isophorone diisocyanate.
Claim 5
Dependent Claim
13 words
Method claimed in claim 1 or 2 wherein the diisocyanate is bisisocyanatocyclohexyl methane.
Claim 6
Dependent Claim
14 words
Method claimed in any of claim 1-4 wherein the reaction of isocyanates is catalyzed.
Claim 7
Dependent Claim
10 words
Method claimed in claim 5 wherein the catalyst is 3-methyl-l-phenyl-2-phospholene-l-oxide.
Claim 8
Dependent Claim
56 words
Method claimed in any of claims 1-6 wherein the synthesis of the polycarbodiimide is carried out in the presence of an inert solvent, such as an aromatic hydrocarbon having 6 to about 12 carbons, an aliphatic ester having about 8 to 20 carbons and/or a glycol or glycol ether diester having about 8 to 20 carbons.
Claim 9
Dependent Claim
27 words
Method claimed in any of claims 1-7 wherein the polycarbodiimide contains a quaternary salt moiety and only a diisocyanate is used for the synthesis of the polycarbodiimide.
Claim 10
Dependent Claim
22 words
Method claimed in any of claims 1-8 wherein the carboxyl-containing latex resin contains acrylic, methacrylic, maleic, fumaric and/or itaconic acid copolymerized therein.
Claim 11
Dependent Claim
9 words
Polycarbodiimide obtainable as described in any of claims 1-8.
References Cited (Backward Citations)
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