Claims
- 1. Reaction product of a composition comprising in admixture:
A. Polyisocyanate, B. Silicone having dimethylsiloxane segment and one or more isocyanate-reactive group, C. Reactant with one or more isocyanate-reactive group and one or more ionizable group, and D. Optionally organic substance having one or more isocyanate-reactive group and no ionizable group, and E. Compound providing counterion for said ionizable group; and wherein either silicone B, or reactant C, or both, have a single isocyanate-reactive group.
- 2. Reaction product according to claim 1 wherein said dimethylsiloxane segment consists of 1-25 dimethylsiloxane units, the isocyanate-reactive groups are selected from the group consisting of hydroxyl, primary amino, secondary amino, carboxyl and thiol or mixtures thereof, and bonded to said dimethylsiloxane segment by an intermediate organic group.
- 3. Reaction product according to claim 2 wherein said organic group is alkylene, alkyleneoxy or polyester.
- 4. Reaction product according to claim 1 wherein said ionizable group is provided by a compound selected from the group consisting of carboxylic acid, sulfonic acid, phosphonic acid, tertiary amine and polyamine.
- 5. Reaction product according to claim 1 wherein said polyiisocyanate is selected from the group consisting of isomers of toluene diisocyanate, isomers of methylene-bis-phenylisocyanate, polymeric methylene-bis-phenylisocyanate, tetramethyl-m-xylylene diisocyanate, isophorone diisocyanate and m-tetramethylxylylene diisocyanate, or mixtures thereof.
- 6. Reaction product according to claim 1 wherein said reactant is selected from the group consisting of 2,2′-dimethylol propionic acid, hydroxyacetic acid, aminoacetic acid, tartaric acid, lysine, N-2-aminoethyl-2-aminoethane sulfonic acid, the propoxylated adduct of 2-butene-1,4-diol with sodium bisulfite, and combinations thereof.
- 7. Reaction product according to claim 1 wherein said reactant is the reaction product of a cyclic anhydride with a multifunctional compound capable of reacting with said anhydride and polyisocyanate.
- 8. Reaction product according to claim 7 wherein said multifunctional compound is selected from the group consisting of polyamine, polyol, amino alcohol, amino acid and hydroxyacid.
- 9. Reaction product according to claim 7 wherein said anhydride is either phthalic anhydride or hydrogenated phthalic anhydride and said compound is selected from the group consisting of 2-ethanol amine, N-methyl-2-ethanolamine, diethanol amine, diisopropanol amine, 2-amino-2-ethyl-1,3-propanediol and 4-aminobenzoic acid.
- 10. Reaction product according to claim 1 wherein said substance is selected from the group consisting of amines, alcohols, aminoalcohols, ammonia, carboxylic acids and water.
- 11. Reaction product according to claim 1 wherein said counterion is provided by a compound having an amine, halide, hydroxide or a carboxyl group.
- 12. Reaction product, according to claim 1, as release agent in an adhesive-coated product.
- 13. Adhesive-coated product, according to claim 12, as an adhesive tape or label.
- 14. Reaction product, according to claim 1, blended with a film-forming polymer.
- 15. Reaction product, according to claim 14, wherein said polymer is selected from the group consisting of vinylacetate homo and copolymers, polyacrylates, polyvinyl chloride homo and copolymers, polyesters, amino resins and epoxy resins.
- 16. Reaction product, according to claim 1, as a coating selected from the group consisting of ink, overprint varnish, paint, finish material for fibers, fabrics or paper products and mold release agent.
- 17. Reaction product, according to claim 1, having average degree of polymerization about 3-50.
- 18. Reaction product, according to claim 17, having average degree of polymerization about 4-20.
- 19. Reaction product, according to claim 18, having average degree of polymerization about 4-10.
- 20. Reaction product, according to claim 1, having weight average molecular weight about 600-20,000.
- 21. Reaction product, according to claim 20, having weight average molecular weight about 800-10,000.
- 22. Reaction product, according to claim 21, having weight average molecular weight about 1,000-5,000.
- 23. Process for manufacturing a pressure sensitive adhesive-coated product comprising the steps of:
i. providing the reaction product of a composition comprising in admixture dissolved in a water-soluble solvent:
A. Polyisocyanate, B. Silicone having dimethylsiloxane segments and one or more isocyanate-reactive group, C. Reactant with one or more isocyanate-reactive group and one or more ionizable group, D. Optionally organic substance having one or more isocyanate-reactive group and no ionizable group, and E. Compound providing counterion to said ionizable group; and wherein either silicone B or reactant C, or both, have a single isocyanate-reactive group, ii. mixing with water to form dilute solution or dispersion, iii coating a flexible substrate with said solution or dispersion and removing water and said solvent, and iv. coating said substrate with a pressure sensitive adhesive.
- 24. Process according to claim 23 wherein said reaction product is dissolved at concentrations of 40% or more.
- 25. Process according to claim 24 wherein said concentration is 50% or more.
- 26. Process according to claim 23 wherein said solvent is removed prior to mixing with water.
- 27. Process according to claim 23 wherein said adhesive is a pressure sensitive adhesive comprising styrene-isoprene or styrene-butadiene block or random copolymers, natural rubber or ethylene-vinylacetate rubber.
- 28. Process for manufacturing a pressure sensitive adhesive-coated product comprising the steps of:
i. providing the reaction product of a composition comprising in admixture optionally dissolved in a solvent:
A. Polyisocyanate, B. Silicone having dimethylsiloxane segments and one or more isocyanate-reactive group, C. Reactant with one or more isocyanate-reactive group and one or more ionizable group, and D. Optionally organic substance having one or more isocyanate-reactive group; and wherein either silicone B, or reactant C, or both, have a single isocyanate-reactive group, ii. mixing with solvent to form dilute solution, iii. coating a flexible substrate with said solution and removing said solvent, and iv. coating said substrate with a pressure sensitive adhesive.
- 29. Process according to claim 28 wherein said admixture is formed in the presence of a solvent and the solvent is removed.
- 30. Reaction product of a composition comprising in admixture:
A. Polyisocyanate, B. Silicone with dimethylsiloxane segment having one or more isocyanate-reactive group and one or more ionizable group, and C. Compound providing counterion for said ionizable group.
- 31. Reaction product according to claim 30 wherein said reaction product is water-soluble or water-dispersible.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of copending U.S. Provisional Application serial No. ______, entitled “Silicone-Modified Urethane Oligomer”, filed Jan. 17, 2001, Certified Mail Number 7099 3400 0018 0787 3835, and the U.S. patent application Ser. No. ______, entitled “Silicone and Ionically Modified Isocyanate Adduct”, filed May 4, 2001, Certified Mail Number EK10664657US, the teachings of which are incorporated herein by reference.