Urethane resins from tolylene diisocyanate distillation residues active hydrogen containing compounds and vinyl monomers

Claim 1

A METHOD FOR PREPARING A CURED RESIN, WHICH COMPRISES REACTING IN THE PRESENCE OF A POLYMERIZATION CATALYST AN ACTIVE HYDROGEN-CONTAINING COMPOUND WITH A SOLUTION IN A POLYMERIZABLE UNSATURATED MONOMER OF THE NCO-CONTAINING DISTILLATION RESIDUE OBTAINED IN THE PRODUCTION OF TOTYLENE DIISOCYANATE FROM TOTYLENE DIAMINE OR ITS SALT AND PHOSGENE, WHEREBY SAID DISTALLATION RESIDUE AMOUNTS TO BETWEEN 30 AND 70 PERCENT OF SAID SOLUTION, THE EQUIVALENT RATIO OF NCO: ACTIVE HYDROGEN IS 0.5:2.0 AND THE AMOUNT OF POLYMERIZED UNSATURATED MONOMER IN THE FINAL RESIN IS BETWEEN 20 AND 80 PERCENT.

Claim 2

A METHOD FOR PREPARING A CURED RESIN, WHICH COMPRISES REACTING IN THE PRESENCE OF A POLYMERIZATION CATALYST AN ACTIVE HYDROGEN-CONTAINING COMPOUND WITH A SOLUTION IN A POLYMERIZABLE UNSATURATED MONOMER OF THE NCO-CONTAINING DISTILLATION RESIDUE OBTAINED IN THE PRODUCTION OF TOTYLENE DIISOCYANATE FROM TOTYLENE DIAMINE OR ITS SALT AND PHOSGENE, WHEREBY SAID DISTALLATION RESIDUE AMOUNTS TO BETWEEN 30 AND 70 PERCENT OF SAID SOLUTION, THE EQUIVALENT RATIO OF NCO: ACTIVE HYDROGEN IS 0.5:2.0 AND THE AMOUNT OF POLYMERIZED UNSATURATED MONOMER IN THE FINAL RESIN IS BETWEEN 20 AND 80 PERCENT.

Claim 3

A method for preparing a cured resin, which comprises reacting a solution of the NCO-containing distillation residue obtained in the production of tolyene diisocyanate from tolyene diamine or its salt and phosgene, in a polymerizable monomer selected from the group consisting of styrene, methyl methacrylate and vinyl acetate, with an active hydrogen-containing compound selected from the group consisting of polyether polyols, dipropylene glycol, neopentyl glycol, castor oil, furfuryl alcohol, unsaturated polyester resins, hydroxy-terminated unsaturated polyester glycols and water in the presence of a polymerization catalyst selected from the group consisting of benzoyl peroxide, methyl ethyl ketone peroxide, a combination of cobalt naphthenate and methyl ethyl ketone peroxide, a combination of benzoyl peroxide and dimethylaniline, a combination of sodium metabisulfate and potassium persulfate, and tin tetrachloride, whereby said distillation residue amounts to between 30 and 70 percent of said solution, the equivalent ratio of NCO: active hydrogen is 0.5:2.0 and the amount of polymerized unsaturated monomer in the final resin is between 20 and 80

Claim 4

A method for preparing a cured resin, which comprises reacting a solution of the NCO-containing distillation residue obtained in the production of tolyene diisocyanate from tolyene diamine or its salt and phosgene, in a polymerizable monomer selected from the group consisting of styrene, methyl methacrylate and vinyl acetate, with an active hydrogen-containing compound selected from the group consisting of polyether polyols, dipropylene glycol, neopentyl glycol, castor oil, furfuryl alcohol, unsaturated polyester resins, hydroxy-terminated unsaturated polyester glycols and water in the presence of a polymerization catalyst selected from the group consisting of benzoyl peroxide, methyl ethyl ketone peroxide, a combination of cobalt naphthenate and methyl ethyl ketone peroxide, a combination of benzoyl peroxide and dimethylaniline, a combination of sodium metabisulfate and potassium persulfate, and tin tetrachloride, whereby said distillation residue amounts to between 30 and 70 percent of said solution, the equivalent ratio of NCO: active hydrogen is 0.5:2.0 and the amount of polymerized unsaturated monomer in the final resin is between 20 and 80