The method of producing elastomer

 

(57) Abstract:

Use: in the manufacture of sealants, coatings and molded articles. The essence of the invention: upon receipt of the elastomer product of the interaction of liquid oligomers with reactive end groups and a diisocyanate, taken at a molar ratio of 1.0 : (2,4 - 4,0), respectively, is treated with a mixture of liquid diene oligomer with terminal hydrazide or hydrazone groups and aromatic diamine in a molar ratio of(0,2 - 1,0) : (1,2 - 2,0) respectively. Curing is carried out in the form within 24 h at 20 - 22S. 12 table.

The invention relates to methods for elastomeric materials and may be used in the manufacture of sealants, coatings and molded articles.

The closest is a common way to obtain elastomers by reacting liquid formaliter with terminal isocyanate groups, which is the product of interaction of the liquid oligomer with the end hydroxyl - governmental groups with a diisocyanate (TDI) in a molar ratio of 1.2, respectively, and with amine curing agent in the environment of an organic solvent, where the amine hardener is used, R is the cue characteristics of elastomers, obtained on its basis, which significantly narrows the scope of their application. To remedy this allows the method to obtain elastomers by reacting liquid prepolymer with terminal isocyanate groups with amine curing agent in the environment of an organic solvent, where as isocyanatobenzene prepolymer are products of the interaction between the liquid reactive oligomers with diisocyanates in a molar ratio of 1: (2,4-4,0), respectively, and as the amine hardener mixture liquid diene oligomer with terminal hydrazide or hydrazone groups with an aromatic diamine in a molar ratio of(0,2-1,0): (1.2-2,0) respectively. The specified ratio of the components is optimal. Use in the method of producing elastomer of these components allows to obtain elastomers, physico-mechanical characteristics of 1.5-10 times higher than that of the elastomers obtained according to the method, taken as a prototype.

Below are examples of specific performance, illustrating this invention.

P R I m e R 1 (the prototype). A prepolymer with terminal isocyanate groups receive interaction 100.0 wt. hours of polyoxyethyleneglycol (Paul is here dissolution to 26.7 wt. including 3,3-dichloro-4,4-diaminodiphenylmethane (diameter-x) 26.7 wt. hours of methyl ethyl ketone (MEK). The obtained prepolymer and curing agent are mixed at 20-22aboutWith up to a uniform consistency and then poured into the form. Elastomer utverjdayut in the form within 24 hours at the above temperature. Main physical and mechanical characteristics of the obtained elastomer, determined according to GOST 270-75 through 14 days after curing are shown in table. 1.

P R I m m e R 2. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including polifonica taken in example 1, from 41.8 wt. including TDI. The molar ratio of the components 1: 2,4. The curing agent is obtained by dissolution of 19.6 wt. including oligomer of butadiene with terminal hydrazide groups (oligonucleotides) - Mm - 980 and 32.0 wt. hours of diamet-x (molar ratio of components 0,2: 1,2) of 45.0 wt. H. Mack. Mixing the obtained prepolymers and curing agent, the curing test of elastomer are also carried out as described in example 1.

The results are given in table. 1.

P R I m e R 3. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including polifonica taken in example 1, from 52.2 wt. including TDI. The molar mixing ratio of 1: 3 is. diamete-x (molar ratio of components 0,5: 1,5) 60,0 wt. H. Mack. The offset of the obtained prepolymer and curing agent, curing and testing of elastomer assests I have also, as indicated in example 1. The results are given in table. 1.

P R I m e R 4. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including polifonica taken in example 1, with 62.6 wt. including TDI. The molar ratio of the components 1: 3,6. The curing agent is obtained by dissolving 78,4 wt. including oligonucleotides taken from example 2, and 48.1 wt. including diameter - x (molar ratio of 0.8: 1,8) to 50.0 wt. H. Mack. Mixing the obtained prepolymers and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 1.

P R I m e R 5. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including polifonica taken in example 1, from 69.6 wt. including TDI. The molar ratio of the components 1: 4,0. The curing agent is obtained by dissolving 98,0 wt. including oligonucleotides taken from example 2, And 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 60,0 wt. H. Mack. A mixture of the obtained prepolymer and overdetermine in table. 1.

P R I m e R 6 (the prototype). A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. hours of polyoxypropyleneglycol (POPG) molecular weight of 1000 with 34.8 wt. including TDI. The molar ratio of the components 1: 2,0. The curing agent is obtained by dissolving or 26.7 wt. PM diameter x 26.7 wt. hours of dimethylketone (acetone). A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 2.

P R I m e R 7. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including POPG taken to example 6, from 45.2 wt. including TDI. The molar ratio of the components 1: 2,6. The curing agent is obtained by dissolving 30.0 wt. hours of isoprene oligomer with terminal hydrazone groups (oligoneuriidae) 1000 Mm and is 34.7 wt. hours of diamet-x (molar ratio of 0.3: 1,3) in 35.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer ASU - p also, as indicated in example 1. The results are given in table. 2.

P R I m e R 8. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including POPG, VSAT 60,0 wt. hours of oligotherapy taken from example 7, and with 42.7 wt. hours of diamet-x (molar ratio of 0.6: 1,6) to 50.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 2.

P R I m e R 9. A prepolymer with terminal isocyanate groups obtained by interaction of 100.0 wt. including POPG taken according to example 6 of 66.1 wt. including TDI. The molar ratio of the components 1: 3,8. The curing agent is obtained by dissolving a 90.0 wt. hours of oligotherapy taken from example 7, and 50.7 wt. hours of diamet-x (molar ratio of 0.9: 1,9) 6.0 wt. including acetone. The mixture obtained by the prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 2.

P R I m e R 10 (the prototype). A prepolymer with terminal isocyanate groups obtained by interaction 140,0 wt. hours of cooligomers of butadiene with isoprene with terminal hydroxyl groups 1400 Mm, obtained by radical polymerization using lithium as an initiator, 34.8 wt. including TDI. The molar ratio of the components 1: 2. Ommercial eridania and testing of elastomer are also, as indicated in example 1. The results are given in table. 3.

P R I m e R 11. A prepolymer with terminal isocyanate groups obtained by interaction 140,0 wt. hours of cooligomers of butadiene with isoprene, taken as example 10, from 43.5 wt. including TDI. The molar mixing ratio of 1: 2,5. The curing agent is obtained by dissolving 62.5 wt. hours of cooligomers of butadiene with isoprene with integral hydrazone groups Mm-2500 and 33.4 wt. hours of diamet-x (molar ratio of 0.25: 1,25) in 35.0 wt. H. Mack. A mixture of the obtained prepolymer and atverti indicator, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 3.

P R I m e R 12. A prepolymer with terminal isocyanate groups obtained by interaction 140,0 wt. hours of cooligomers of butadiene with isoprene, taken as example 10, to 52.1 wt. including hexamethylenediisocyanate (HMDI). The molar ratio of 1.3: 1. The curing agent is obtained by dissolving a 66.0 wt. hours of cooligomers of butadiene with piperylene end of hydrazide groups Mm-1200 and 41.4 wt. hours of diamet-x (molar ratio of 0.55: 1,55) to 43.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing elastome is 3. A prepolymer with terminal isocyanate groups obtained by interaction 140,0 wt. hours of cooligomers of butadiene with isoprene, taken as example 10, of 60.5 wt. including HMDI. The molar ratio of the components 1: 3,6. The curing agent is obtained by dissolving 96,0 wt. hours of cooligomers of butadiene with piperylene taken from example 12 and 48.1 wt. hours of diamet-x (molar ratio of 0.8: 1,8) 58,4 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 3.

P R I m e R 14. A prepolymer with terminal isocyanate groups obtained by interaction 140,0 wt. hours of cooligomers of butadiene with isoprene, taken as example 10, with 67.2 per wt. including HMDI. The molar ratio of the components 1: 4,0. The curing agent is obtained by dissolving 120,0 wt. hours of cooligomers of butadiene with piperylene taken from example 12, and 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 60,0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer oudestraat also, as indicated in example 1. The results are given in table. 3.

P R I m e R 15 (the prototype). The prepolymer end of isoci drexeline groups (SKDP-G) Mm-1650, obtained by the method of radical polymerization using as an initiator of hydrogen peroxide, with 34.8 wt. including TDI. The molar ratio of the components 1: 2. The curing agent is obtained by dissolving 34,3 wt. including eutectic mixture of 3,3-dichloro-4,4-diaminodiphenylmethane and 3,3-dichloro-4,4-diaminodiphenylmethane in a molar ratio of 1: 1 (diamine-304) to 34.3 wt. hours of ethyl acetate. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 4.

P R I m e R 16. A prepolymer with terminal isocyanate groups obtained by interaction 165,0 wt. including SKDP-7, taken from example 15, from 41.8 wt. including TDI. The molar ratio of the components 1: 2: 4. The curing agent is obtained by dissolving 30.0 wt. hours of cooligomers of butadiene with piperylene with integral hydrazone groups M-M-1500 and 41.2 wt. hours of diamine-304 (molar ratio of components 0,2: 1,2) 70,0 wt. hours of ethyl acetate. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 4.

P R I m e R 17. A prepolymer with terminal isocyanate groups obtained by usaimage Itel obtained by dissolution of 75.0 wt. hours of cooligomers of butadiene with piperylene taken from example 16, and 40.1 per wt. hours of diamet-x (molar ratio of 0.5: 1.5 (40,1 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 4.

P R I m e R 18. A prepolymer with terminal isocyanate groups obtained by interaction 165,0 wt. including SKDP-G, taken from example 15, with 672 wt. including HMDI. The molar ratio of the components 1: 4,0. The curing agent is obtained by dissolving 160,0 wt. hours of cooligomers of butadiene with piperylene end of hydrazide groups Mm-1600 and 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 100.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 4.

P R I m e R s 19 (prototype). A prepolymer with terminal isocyanate groups obtained by interaction of 200.0 wt. including polifonica Mm 2000 to 34.8 wt. including TDI. The molar ratio of the components 1: 2,0. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. including acetone. A mixture of the obtained prepolymer and overdetermine in table. 5.

P R I m e R 20. A prepolymer with terminal isocyanate groups obtained by interaction of 200.0 wt. including polifonica taken to example 19, with 48.7 per wt. including TDI. The molar ratio of the components 1: 28, . The curing agent is obtained by dissolving 68,0 wt. hours of isoprene oligomer with terminal hydrazide (oligoneuriidae) Mmm-1700 and 37.4 wt. hours of diamet-x (molar ratio of 0.4: 1,4) of 45.0 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomers are also carried out as described in example 1. The results are given in table. 5.

P R I m e R 21. A prepolymer with terminal isocyanate groups obtained by interaction of 200.0 wt. including polifonica taken in example 19. with 60,5 wt. including HMDI. The molar ratio of the components 1: 3,6. The curing agent is obtained by dissolving 136,0 wt. including oligosaprogenic taken from example 20 and was 38.1 wt. hours of diamet-x (molar ratio of 0.8: 1,8) to 50.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 5.

P R I m e R 22. A prepolymer with terminal isocyanate groups policeone.com 1: 4,0. The curing agent is obtained by dissolving 98,0 wt. including oligosaprogenic taken from example 2, and 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 55,0 wt. including acetone. The mixture obtained by the prepolymers and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 5.

P R I m e R 23. (the prototype). A prepolymer with terminal isocyanate groups obtained by interaction of 200.0 wt. including oligomer of butadiene with terminal hydroxyl groups 2000 Mm, obtained by radical polymerization using as the initiator of the peroxide-4-oxybenzoyl (ORB) with 34.8 wt. including TDI. The molar ratio of the components 1: 2,0. The curing agent is obtained by dissolving or 26.7 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 6.

P R I m e R 24. The prepolymer end of oceantype groups poluchat by the interaction of 200.0 wt. including the ORB, taken from example 23, from 43.5 wt. including TDI. The molar mixing ratio of 1: 2,5. The curing agent is obtained by dissolving 62.5 wt. including oligomer of butadiene with whom mponents of 0.25: 1,25) in 35.0 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 6.

P R I m e R 25. A prepolymer with terminal isocyanate groups obtained by interaction of 2000 wt. including the ORB, taken from example 23, from 53.9 wt. including TDI. The molar ratio of the components 1: 3,1. The curing agent is obtained by dissolving 132,0 wt. including oligonucleotides Mm-2400 and 41.4 wt. including diameter-x (ratio of 0.55: 1,55) 500,0 wt. including Azamara. The offset of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 6.

P R I m e R 26. A prepolymer with terminal isocyanate groups obtained by interaction of 200.0 wt. including the ORB, taken from example 23, from 67.9 wt. including TDI. The molar mixing ratio of 1: 3.9. The curing agent is obtained by dissolving 142,5 wt. hours of oligonucleotides Mm-1500 and 52.1 wt. including dieta-x molar ratio of 0.95: 1,95 (52.9 per wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The test results given the em interaction 220,0 wt. including oligomer of butadiene with terminal hydroxyl groups Mm-2200, obtained by radical polymerization using as an initiator of hydrogen peroxide (ACL-D) 34.8 wt. including TDI. The molar ratio of the components 1: 2,0. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 7.

P R I m e R 28. A prepolymer with terminal isocyanate groups obtained by interaction 220,0 wt. including SKD-G, taken from example 27, from 40.3 wt. including HMDI. The molar ratio of the components 1: 2,4. The curing agent is obtained by dissolving 52,0 wt. hours of oligotherapy Mm 2600 and 32.0 wt. hours of diamet-x (molar ratio of components 0,2: 1,2) to 50.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 7.

P R I m e R 29. A prepolymer with terminal isocyanate groups obtained by interaction 220,0 wt. including SKD-G, taken from example 27, from 50.4 wt. including HMDI. The molar ratio of the components 1: 3,0. Re the a-304 (molar ratio of components 0,5: 1,5) 70,0 wt. including butyl acetate. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 7.

P R I m e R 30. A prepolymer with terminal isocyanate groups obtained by interaction 220,0 wt. including SKD-G, taken from example 27, with a 59.2 wt. including TDI. The molar ratio of the components 1: 3,4. The curing agent is obtained by dissolving 154,0 wt. including oligonucleotides Mm-2200 and 45.4 wt. hours of diamet-x (molar ratio of 0.7: 1,7) to 50.0 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 7.

P R I m e R 31. A prepolymer with terminal isocyanate groups obtained by interaction 220,0 wt. including SKD-G, taken from example 27, 666,1 wt. including TDI. The molar ratio of the components 1/3,8. The curing agent is obtained by dissolving 153,0 wt. hours of oligotherapy Mm 1700 and 65.2 wt. hours of diamine-304 (molar ratio of 0.9: 1,9) 65.2 wt. including butyl acetate. A mixture of the obtained prepolymer and hardener. curing and testing of elastomer are also carried out as described in example 1. Resume groups obtained by interaction 265,0 wt. hours of cooligomers of butadiene with isoprene with terminal hydroxyl groups 2650 Mm, obtained by radical polymerization using lithium as an initiator, 34.8 wt. including TDI. The molar ratio of the components 1: 2,0. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 8.

P R I m e R 33. A prepolymer with terminal isocyanate groups obtained by interaction 265,0 wt. hours of cooligomers of butadiene with isoprene, taken from example 32, with 345,2 wt. including TDI. The molar ratio of the components 1: 2,6. The curing agent is obtained by dissolving 96,0 wt. hours of oligotherapy Mm-3200 and 44.6 wt. hours of diamine - 304 (molar ratio of 0.3: 1,3) is 52.0 wt. including butyl acetate. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 8.

P R I m e R 34. A prepolymer with terminal isocyanate groups receive PTEN interaction 265,0 wt. hours of cooligomers of butadiene with isoprene, taken for example housebreakers Mm-3100 and 42,7 wt. hours of diamet-x (molar ratio of 0.6: 1,6) of 45.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 32. The results are given in table. 8.

P R I m e R 35. A prepolymer with terminal isocyanate groups obtained by interaction 265,0 wt. hours of oligomers of butadiene with isoprene, taken from example 32, with 66,1 wt. including TDI. The molar ratio of the components 1: 3: 8. The curing agent is obtained by dissolving 225,0 wt. hours of cooligomers of butadiene with isoprene with terminal hydrazide groups 2500 Mm and 50.2 wt. hours of diamet-x (molar ratio of 0.9: 1,9) 50,7 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 8.

P R I m e R 36 (the prototype). A prepolymer with terminal isocyanate groups obtained by interaction of 270.0 wt. including oligomer of butadiene with terminal hydroxyl groups Mm-2700 obtained by radical polymerization using as an initiator G, G-azo-bis(-G-tiopental) (SKD-GTRA) 34.8 wt. including TDI. The molar ratio of the components 1: 2.0 a and hardener, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 9.

P R I m e R 37. A prepolymer with terminal isocyanate groups obtained by interaction of 270.0 wt. including SKD-GTR taken from example 36, from 41.8 wt. including TDI. The molar ratio of the components 1: 2,4. The curing agent is obtained by dissolution of 24.0 wt. including oligonucleotides Mm-1200 and 32.0 wt. hours of diamet-x (molar ratio of components 0,2: 1,2) in 35.0 wt. H. Mack. A mixture of the obtained prepolymer and hardener curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 9.

P R I m e R 38. The prepolymer with terminal isocyanate groups obtained by interaction of 270.0 wt. including SKD-GTR taken to example 36 from 52.2 wt. including TDI. The molar ratio of the components 1: 3,0. The curing agent is obtained by dissolving 60,0 wt. including oligonucleotides taken from example 37, and 40.1 per wt. hours of diamet-x (molar ratio of components 0,5: 1,5) 60,0 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 9.

P satogo in example 36, with a 59.2 wt. including TDI. The molar ratio of the components 1: 3,4. The curing agent is obtained by dissolution of 84.0 wt. including oligonucleotides taken from example 37, and 45, 4 wt. hours of diamet-x (molar ratio of 0.7: 1,7) and 50.6 wt. H. Mack. Mixing the obtained prepolymers and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results of the tests are given in table. 9.

P R I m e R 40. A prepolymer with terminal isocyanate groups obtained by interaction 2700 wt. including SKD-GTR taken to example 36 from 69.6 wt. including TDI. The molar ratio of the components 1: 4,0. The curing agent is obtained by dissolving 120,0 wt. including oligonucleotides taken from example 37 and 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 56,6 wt. H. Mack. Mixing the obtained prepolymers and curing agent, curing and testing of elastomer be collected as described in example 1. The results are given in table. 9.

P R I m e R 41 (the prototype). A prepolymer with terminal isocyanate groups obtained by interaction 310,0 wt. including oligomer of butadiene with terminal carboxyl groups Mm-3100 obtained by radical polymerization using the (DHS) (molar ratio of 1.0: 2.0) environment 150,0 wt. including acetone. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 10.

P R I m e R 42. A prepolymer with terminal isocyanate groups obtained by interaction 310,0 wt. including SKD-KTR taken from example 41, with 60,0 wt. including MDI (molar ratio of 1.0: 2,4) in the environment 95,0 wt. including acetone. The curing agent is obtained by dissolving 80,0 wt. including oligonucleotides Mm-4000 and 32.0 wt. hours of diamet-x (molar ratio of components 0,2: 1,2) 80,0 wt. including acetone. The mixing of the components 0,2: 1,2) 80,0 of prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 10.

P R I m e R 43. The prepolymer with terminal isocyanate groups obtained by interaction 310,0 wt. including SKD-KTR taken from example 41, 75.0 wt. including MDI (molar ratio of components 1,0; 3: 0) in the environment 250,0 wt. H. Mack. The curing agent is obtained by dissolving 205,0 wt. hours of oligotherapy Mm-4100 and 51.0 wt. hours of diamine - 304 (molar ratio of 0.5: 1.5 to the keys as well as indicated in example 1. The results are given in table. 10.

P R I m e R 44. A prepolymer with terminal isocyanate groups obtained by interaction 310,0 wt. including SKD-KTR taken by the PR iMER 41, with 67.2 per wt. including HMDI (molar ratio of 1.0: 4,0) in the environment to 100.0 wt. hours of ethyl acetate. The curing agent is obtained by dissolving 310,0 wt. hours of oligotherapy Mm-3100 and 35.4 wt. including 1,4-diamino-2,6-dichlorobenzene (molar ratio of components required to 1.0: 2.0) 100.0 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 10.

P R I m e R 45 (prototype) a Prepolymer with terminal isocyanate groups obtained by interaction 370,0 wt. hours of cooligomers of divinyl piperylene with terminal hydroxyl groups 3700 Mm, obtained by radical polymerization using as an initiator of hydrogen peroxide (SKDP-G) 34.8 wt. including TDI. The molar ratio of the components 1,0: 2,0. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also, as indicated yonetimi groups obtained by interaction 370,0 wt. including SKDP-G, taken from example 45, and 47.0 wt. including TDI. The molar ratio of the components 1: 2,7. The curing agent is obtained by dissolving 126,0 mA. hours of oligopiperilene Mm-3600 and 23.9 wt. including 1,4-diamino-2,6-dichlorobenzene (molar ratio of 0.35: 1,35) 150,0 wt. H. Mack. A mixture of the obtained prepolymer and overdates, curing and testing of elastomer perform the same as described in example 1. The results are given in table. 11.

P R I m e R 47. A prepolymer with terminal isocyanate groups obtained by vzaimodeystviya 370,0 wt. including SKDP-G taken from example 45, with 57.4 wt. including TDI. The molar ratio of the components 1: 3,3. The curing agent is obtained by dissolving 201: 5 wt. including oligopiperilene Mm 3100 and 56,6 wt. hours of diamine-304 (molar ratio of 0.65: 1,65) 58,0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 11.

P R I m e R 48. A prepolymer with terminal isocyanate groups obtained by interaction 370,0 wt. including SKDP-G, taken from example 45, with 65,5 wt. including HMDI. The molar ratio of the components 1: 3,9. The curing agent is obtained by dissolving 294,5 giving components of 0.95: 1,95) 113,3 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 11.

P R I m e R 49 (prototype). A prepolymer with terminal isocyanate groups obtained by interaction 410,0 wt. hours of isoprene oligomer with terminal hydrazone groups 4100 Mm, obtained by radical polymerization using as an initiator azo-bis-tutorializeddirectory (SKI-GZ) with 34.8 wt. including TDI (molar ratio of 1.0: 2.0) environment 112,0 wt. including butyl acetate. The curing agent is obtained by dissolving or 26.7 wt. hours of diamet-x 26.7 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 12.

P R I m e R 50. A prepolymer with terminal isocyanate groups obtained by interaction 410,0 wt. 'clock SKI GBS, taken from example 49, by 60.0 wt. including MDI (molar ratio 1: 2,4) in the environment 120,0 wt. including butyl acetate. The curing agent is obtained by dissolving 80,0 wt. including oligosaprogenic Mm 4000 and 32.0 wt. hours of diamet-x (molar ratio of 0.2: tlaut also, as indicated in example 1. The results are given in table. 12.

P R I m e R 51. A prepolymer with terminal isocyanate groups obtained by interaction 410,0 wt. 'clock SKI GBS, taken from example 49, with 50.4 wt. including HMDI (molar ratio 1: 30) in the environment 110,0 wt. including butyl acetate. The curing agent is obtained by dissolving 155,0 wt. including oligosaprogenic Mm-3100 and 21.3 wt. including 1,4-diamino-2-chlorobenzene (molar ratio of components 0,5: 1,5) to 100.0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 12.

P R I m e R 52. A prepolymer with terminal isocyanate groups obtained by interaction 410,0 wt. including SKI-GZ taken from example 49, with 62.6 TDI (molar ratio of 1: 3.5) in the environment 110,0 wt. including butyl acetate. The curing agent is obtained by dissolving 180,0 wt. including oligosaprogenic Mm-2400, and 60.0 wt. hours of diamine - 304 (molar ratio of 0.75: 1,75) 2400 wt. H. Mack. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are shown in table. 12.

P R I m e R Primero, 49 from 69.6 wt. including butyl acetate. The curing agent is obtained by dissolving 120,0 wt. including oligosaprogenic Mm-1200 and 53.4 wt. hours of diamet-x (molar ratio of 1.0: 2.0) 170,0 wt. including acetone. A mixture of the obtained prepolymer and curing agent, curing and testing of elastomer are also carried out as described in example 1. The results are given in table. 12.

As seen from the above data, the method of producing elastomer by reacting the prepolymer with terminal isocyanate subgroups with amine curing agent in the environment of an organic solvent, where the prepolymer are products of the interaction of liquid oligomers with reactive end groups with diisocyanates in a molar ratio of 1: (2,4-4,0), respectively, and as the amine hardener mixture liquid diene oligomer with terminal hydrazone or hydrazide groups with an aromatic diamine in a molar ratio(0,2-1,0): (1,2-2,0) accordingly, allows to obtain elastomers physico-mechanical characteristics of 1.5-10 times higher than those of the elastomers obtained according to the method, taken as a prototype, where the prepolymer are products of the interaction of liquid oligomeres solution of an aromatic diamine in an organic solvent.

(56) USSR Author's certificate N 939493, CL 08 L 75/04, 1980.

U.S. patent N 3726835, CL 260-77,5, published, 1973.

The METHOD of producing ELASTOMER by reacting liquid prepolymer with terminal isocyanate groups with amine curing agent in the environment of an organic solvent, characterized in that the prepolymer with terminal isocyanate groups use the products of interaction of liquid oligomers with terminal reaktsionnosposobnykh groups with diisocyanates in a molar ratio of 1.0 : 2,4 - 4,0 respectively, and as the amine hardener is a mixture of liquid diene oligomer with terminal hydrazide or hydrazone groups of the aromatic diamine in a molar ratio of 0.2 - 1.0 : 1,2 - 2,0 respectively.

 

Same patents:

FIELD: new associative amphiphilic cationic polymers.

SUBSTANCE: polymers of formula I dissolvable or dispersible in water, as well as method for production and application thereof are disclosed. Claimed polymers are useful as thickening agents in cosmetic and therapeutic compositions. Composition containing polymers of present invention also are disclosed.

EFFECT: polymers of improved thickening ability and cosmetic quality.

13 cl, 4 ex

FIELD: polymer production.

SUBSTANCE: coating composition comprising at least one compound with at least two isocyanate functional groups; at least one compound reactive to isocyanate and having at least two groups reactive to isocyanate groups, which are selected from mercapto groups, hydroxyl groups and combinations thereof; and cocatalyst consisting of phosphine and Michael acceptor, amount of catalyst constituting from 0.05 to 20% of the weight of dry residue. Invention also describes a method for coating substance with indicated composition as well as coated substrate, and adhesive containing at least one compound with at least two isocyanate functional groups and at least one compound containing at least two above defined groups reactive to isocyanate groups. Moreover, invention discloses employment of composition for finishing of great vehicles and refinishing of motor cars. Composition is characterized by drying time at a level of 20 min, modulus of elasticity 1904, Persose hardness 303, and brightness (85°C) at a level of 100.

EFFECT: expanded coating assortment.

16 cl, 16 tbl, 48 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to polyurethane elastomers suited to manufacture polyurethane articles. Composition according to invention contains (i) 70.6-74.8% polyfurite urethane prepolymer prepared by reaction between 2.1 mile 2,4-tolylenediisocyanate and 1.0 mole poly(oxytetramethylene glycol) with molecular weight 1500 and (ii) liquid curing agent (to 100%), which is a mixture of 3,3'-dichloro-4,4'-diaminodiphenylmethane and poly(oxytetramethylene glycol) with molecular weight 1000 at their molar ratio 1:1. Thus obtained polyurethane elastomers show Shore hardness al a level of 93 relative units, breaking point (23°C) at a level of 38 MPa, elongation on fracture 712%, and abrasion resistance 27 mcm (according to Russian standard GOST 11529-86). Articles manufactured from these elastomers may find use for in-tube flaw inspection of oil and gas mains as well as oil storage tanks.

EFFECT: enlarged assortment of industrially useful elastomers.

4 tbl, 6 ex

FIELD: chemistry of polymers.

SUBSTANCE: invention relates to formulations of polyurethane elastoplastics designating for preparing soft polyurethane materials with Shore hardness value 45-55 conditional units. Invention describes the composition comprising 74.8-78.4 wt.-% of urethane pre-polymer based on 1.8 mole of 2,4-toluylene diisocyanate and 1.0 mole of polyethylenebutylene glycoladipinate of molecular mass 2000 Da and liquid hardening agent based on aromatic amine 3,3'-dichloro-4,4'-diaminodiphenylmethane and a mixture of oligoesters - polyethylene glycoladipinate of molecular mass 800 Da and polyethylenebutylene glycoladipinate of molecular mass 2000 Da taken in the mole ratio 0.34; 0.33; 0.33 (up to 100 wt.-%). Polyurethane materials prepared on the basis of such composition show Shore hardness value at the level 45 units, rupture strength limit (at 23°C) at the level 31.2 MPa, relative elongation at rupture 1100%, and they can be exploited at temperature -10°C.

EFFECT: improved and valuable properties of composition.

4 tbl, 5 ex

FIELD: chemistry of polymers.

SUBSTANCE: invention relates to aromatic polyurethane polyols used as components of priming compositions. Invention describes the priming composition comprising aromatic polyurethane polyol including product of reaction: (a) at least one diol component among number of α,β-diols, α,γ-diols and their mixtures; (b) at least one triisocyanate; (c) at least one diisocyanate wherein at least one isocyanate is aromatic one, and molecular mass or aromatic polyurethane polyol is 3000 Da, not above, and a cross-linking agent also. Prepared aromatic polyurethane polyol shows viscosity value by Brookfield at the level 8260 centipoises, OH-number 192.6 KOH/g and the dispersity (Mn/Mw) at the level 3.0. Priming compositions prepared by using indicated aromatic polyurethane polyol are useful in finishing large means of transportation, for example, trains, trucks, buses and airplanes, in particular, in vehicle body works. Also, invention relates methods for applying priming compositions on support comprising applying indicated compositions, and to a method for finishing car in repairs comprising applying the indicated priming composition.

EFFECT: improved and valuable properties of composition.

11 cl, 5 tbl, 12 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to polyurethane-polyol compositions comprising product of reaction of a polyol and Herbert alcohol, the two containing In average 12 carbon atoms. Preferred polyols are α,β-diols and α,β-diols. Polyurethane-polyol compositions exhibit very low viscosity and are particularly suitable in coating compositions with very low content of volatile organics. Hardened coating obtained from claimed compositions ensure high resistance to cracking and can be applied on various substrates such as metal, plastic, wood, glass, ceramics.

EFFECT: increased strength of coatings on a variety of substrates.

5 cl, 3 tbl

FIELD: composite materials.

SUBSTANCE: in particular, invention relates to employment of polyisocyanates compositions as binders for composites containing lignocellulose fibers such as oriented wood chipboard.

EFFECT: improved performance characteristics regarding detachment of product as compared to conventional polyisocyanates employed for binding lignocellulose material.

11 cl, 7 tbl, 8 ex

FIELD: polymer production.

SUBSTANCE: invention provides process for manufacture of rigid polyurethane foams suitable as heat-insulation coatings via interaction of polyisocyanates with polyether component in presence of foaming and curing catalysts, foaming agent, foaming control agent, and fire retardant by way of bringing polyisocyanates into contact with hydroxyl-containing mixture comprising hydroxyl-containing compound, polyether supplemented by cyclic compound of formula I (appendix 1). As low-toxicity catalyst serving for cross-linking chains, cyclic compound of formula II (appendix 2) is additionally used in amounts from 1 to 200 wt parts per 100 wt parts hydroxyl-containing compound and ether. Invention assures manufacture of foamed plastic with heat resistance at a level of 210°C, compaction stress 0.48 MPa, and moisture absorption 6.8% without significant increase in brittleness of material, which allows material to be used in construction, power engineering, ship and automobile building, oil-and-gas and refrigeration industries. Appendix 1: . Appendix 2: .

EFFECT: improved performance characteristics of polyurethane foam.

2 tbl, 6 ex

FIELD: polymer production.

SUBSTANCE: invention is concerned with a method for preparing prepolymer for use in delivery device for single-component foamed material via polymerization of mixture containing (A) isocyanate components, (B) polyol component containing one or several polyols to impart rigidity to foamed material and (C) low-viscosity component non-reactive toward isocyanate and hydroxyl groups. Disclosed prepolymer preparation process comprises stage of removing free diisocyanate monomer from the prepolymer to a level below 2% after polymerization of mixture containing A, B, and C components or after polymerization of mixture containing A and B components followed by adding C component. Free diisocyanate monomer is removed from prepolymer using elevated temperatures and/or reduced pressures, e.g. by means of thin-layer distillation. Once distillation is completed, prepolymer jointly with commonly used additives, such as cell stabilizers, foaming agents, propellants, and catalysts, is placed in suitable delivery container.

EFFECT: increased strength of foamed material and reduced content of diisocyanate monomer therein.

2 cl, 2 tbl, 4 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to polymer compositions including at least one polyurethane prepolymer A with isocyanate terminal groups obtained from at least one polyisocyanate with at least one polyol A1 and, if necessary, with at least one polyol A2. wherein A1 is linear polyoxyalkylenepolyol with unsaturation degree ,less than 0.04 m-equ/g; A2 is polyol, which is present in amount 0-30%, preferably 0-20%, in particular 0-10% based on total amount A1+A2; and at least one polyaldimine B. Composition is a mixture of polyurethane prepolymer A with polyaldimine B. In absence of moisture, such compositions are stable on storage. When being applied, such compositions are brought into contact with moisture, after which polyaldimines are hydrolyzed into aldehydes and polyamines, and polyamines react with polyurethane prepolymer containing isocyanate groups. Products obtained from such composition possess very wide spectrum of properties, including tensile strength varying within a range from 1 to 20 MPa and ultimate elongation above 1000%. Composition may be used as glue, hermetic, coating, or facing.

EFFECT: expanded possibilities of polyurethanes.

3 cl, 7 tbl, 34 ex

FIELD: polymers, covering compositions.

SUBSTANCE: invention relates to photoactivating aqueous-base covering composition. The proposed composition comprises the following components: a)(meth)acryloyl-functional polyurethane dispersion wherein this (meth)acryloyl-functional polyurethane comprises from 5 to 18 weight % of alkylene-oxide groups and (meth)acryloyl functionality represents a value in the range from 2 to 40, and b) UV-initiating agent. The presence of reactive diluting agent in the covering composition is preferable. (Meth)acryloyl-functional polyurethane can be prepared by carrying out the following interactions: a) at least one organic polyisocyanate; b) optionally, at least one organic compound comprising at least two isocyanate-reactive groups and having an average molecular mass in the range from 400 to 6000 Da; c) at least one isocyanate-reactive and/or isocyanate-functional compound comprising non-ionogenic dispersing groups; d) at least one isocyanate-reactive (meth)acryloyl-functional compound; e) optionally, at least one chain elongating agent comprising active hydrogen, and f) optionally, at least one compound comprising active hydrogen and ionic groups. Aqueous-base covering composition is useful especially for applying as a clear cover. Covers based on the proposed composition show resistance to water, solvents and scratches and flexibility and high adhesion also.

EFFECT: improved and valuable properties of composition.

15 cl, 12 tbl, 17 ex

FIELD: glue compositions.

SUBSTANCE: invention relates to UV-strengthening glue compositions used for gluing polymethylmethacrylate with metal. Proposed composition comprises oligourethane-acrylate representing product of interaction of oligobutadienediol of molecular mass 2000-3000 Da, aliphatic or aromatic diisocyanate and hydr(o)oxyalkylmethacrylate taken in the molar ratio = 1:2:2, reactive monomer-diluting agent representing a mixture of mono- and polyfunctional methacrylate, polymeric filling agent - polyethylene of high density with particles size below 50 mcm, photoinitiating agent, antioxidant of phenolic type and adhesion promoter - a mixture of chlorinated polyvinyl chloride with chlorine content 62-64 wt.-% and oxalic acid, and the composition comprises additionally thixotropic agent - aerosil with specific surface 175-380 m2/g and ester plasticizing agent. Invention provides the development of UV-strengthening glue composition showing the thixotropy coefficient K = 2-3, shrinkage 4%, not above, break off strength both in the parent state and after heat effect, moisture and temperature drop 1.5 MPa, not less, and stability in storage above one year. The composition can be used as adhesive in electronic devices, such as optical reading head, thin-film transistor - mesomorphic display and organic electroluminescent unit.

EFFECT: valuable properties of composition.

5 cl, 2 tbl, 5 dwg, 8 ex

FIELD: glue compositions.

SUBSTANCE: invention relates to UV-strengthening glue compositions used for gluing substrates metal-silicate glass in electronic devices, such as optical reading head, thin-film transistor - semiconducting mesomorphic display, organic luminescent unit. The composition comprises oligourethaneacrylate - a mixture of oligourethaneacrylates of two type: the first is prepared by interaction of oligooxyalkylenepolyol of molecular mass 1000-5000 Da, diisocyanate of aliphatic or aromatic structure and alkylene glycol monomethacrylate, and the second based on oligobutadienediol of molecular mass 2000-3000 Da, diisocyanate of aliphatic or aromatic structure and alkylene glycol monomethacrylate in the mass ratio of the first to the second = (1.0-4.0):1, reactive monomer as a diluting agent, silicate filling agent, organic tert.-butylperbenzoate, thixotropic agent - aerosil and photoinitiating agent, and, additionally, it comprises oxalic acid as adhesion promoter, silane dressing agent and antioxidant of phenolic type. Invention provides the development of UV-strengthening glue composition possessing thixotropy, high strengthening rate, high adhesion strength being especially at effect of heat and moisture, temperature drop, low shrinkage and stability in storage.

EFFECT: improved and valuable properties of composition.

7 cl, 2 tbl, 5 dwg, 8 ex

FIELD: chemistry.

SUBSTANCE: powdered coating agent contains solid particles of a resin-polyurathane binding substance with equivalent mass of olefinic double bonds ranging from 200 to 2000 and content of silicon bonded in alkoxy silane groups ranging from 1 to 10 mass % and a photoinitiator. In the method of obtaining a single layered or multilayered coating on substrates, in particular when obtaining multilayered coating for transportation equipment and their components (car body or car body components coating), at least one layer of this coating is deposited from a powdered coating agent. In that case, solidification of at least one layer of the above mentioned powdered coating is achieved through free-radical polymerisation of olefinic double bonds when irradiated with high energy radiation and through formation of siloxane atomic bridges under the effect of moisture.

EFFECT: obtaining a powdered coating, which is hard, has scratch resistance and good resistance to chemical effects.

8 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention concerns method of obtaining polyurethanedi(met)acrylates applicable as binders for powder coatings applied on metal substrates, plastic parts, fiber-reinforced plastic parts. Polyurethanedi(met)acrylates are obtained by interaction of diisocyanate component, diol component and hydroxy-C2-C4-alkyl(met)acrylate at mol ratio of x:(x-1):2, where x takes any value from 2 to 5. 1,6-hexanediisocyanate comprises 50 to 80 mol % of diisocyanate component, and one or two diisocyanates selected out of defined diisocyanate group where mol content of respective diisocyanates amount to 100 mol % comprise(s) 20 to 50 mol %, so that each diisocyanate comprises at least 10 mol % of diisocyanate component. Diol component includes not more than four different diols, and at least one linear aliphatic alpha, omega-C2-C12-diol comprises 20 to 100 mol % of diol component, while at least one (cyclo)aliphatic diol different from linear aliphatic alpha, omega-C2-C12-diols comprises 0 to 80 mol %. Each diol of the diol component comprises at least 10 mol % of diol component, and mol content or respective diols amounts to 100 mol %. Due to the absence of solvent in polyurethanedi(met)acrylate production, further cleaning of end product is not required, thus increasing process product output.

EFFECT: higher acid resistance of coating films applied and solidified with the use of powder coatings containing claimed polyurethanedi(met)acrylates.

6 cl, 15 ex, 3 tbl

FIELD: chemistry.

SUBSTANCE: described is a polyol composition containing polyol (a) and fine resin particles (b), dispersed in the polyol (a), where the fine resin particles (b) are polymer particles obtained by polymerising an ethylene unsaturated monomer (d) and content of particles with diametre of not less than 10 mcm in the fine polymer particles (b) is not greater than 2 vol %. The fine resin particles (b) are particles for which arithmetic standard deviation for particle size distribution per unit volume, obtained based on corresponding values in 85 intervals of the range from 0.020 to 2000 mcm, determined using a particle size distribution analyser through a laser radiation diffraction/scattering method, is not greater than 0.6. The resin has ultimate tensile strength of 1.54-1.65 kgf/cm2 and breaking elongation of 116-123%.

EFFECT: improved mechanical strength parametres.

17 cl, 6 tbl, 24 ex

FIELD: chemistry.

SUBSTANCE: multicomponent aqueous composition contains an aqueous dispersion and a component containing a material having functional groups. The components are mixed with each other before applying the composition onto the substrate. The aqueous dispersion contains a polycarbonate-polyurethane polymer and an acrylic polyol. The aqueous dispersion also contains an organic solvent. The material having functional groups reacts with functional groups of the acrylic polyol and/or polycarbonate-polyurethane polymer. The acrylic polyol has number-average molecular weight from 500 to 4000. The polycarbonate-polyurethane polymer is obtained via a reaction between hydroxy-functional carbonate-containing material and polyisocyanate. The hydroxy-functional carbonate-containing material contains a product of reaction between carbonic acid or derivative thereof and a diol. The diol is hexane-1,6-diol.

EFFECT: composition has low content of volatile substances, as well as high water resistance and hardness.

20 cl, 3 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a cross-linkable elastomeric thermoplastic polyurethane which does not contain urea, isocyanurate, oxozolinyl, functional side groups capable of radical polymerisation, and having on both ends terminal functional groups capable of radical polymerisation, obtained through reaction of polyfunctional isocyanate, polyfunctional polyol and monool, containing unsaturation and capable of radical polymerisation, and a diol chain extender, where the amount of monool containing unsaturation ranges from 0.001 mol/100 g to 0.016 mol/100 g, preferably from 0.002 mol/100 g to 0.01 mol/100 g of the polymer composition. The invention also describes a method of producing such a thermoplastic polyurethae, a composition containing said polyurethane and a method of cross-linking such a composition, heat-cured polyurethane obtained from thermoplastic polyurethane according to the invention and a method of producing heat-cured polyurethane, as well as use of the disclosed cross-linkable elastomeric thermoplastic polyurethane or composition to make moulded articles, protective films, coatings for motorcars and extruded articles, tubes or cable sheathing.

EFFECT: thermoplastic polyurethane with improved stability at high temperature, wear resistance, creep resistance, dynamic characteristics and resistance to organic solvents.

22 cl, 4 ex, 8 tbl, 4 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to oligomeric urethane acrylates whose molecules contain a statistic average of at least two structural units of general formula I: R{-X-CH2-CH(-CH2-O-(O)-CR1=CH2)[-O-C(O)-NH-]}n, where n is a number from 1 to 6; R is an organic low-molecular or oligomeric radical, from monovalent to hexavalent; X is an oxygen atom or a -C(O)-O- group, a radical which is bonded to radical R through a carbon atom; and R1 is a hydrogen atom or a substituted or unsubstituted alkyl group containing 1-6 carbon atoms. The invention also describes a method of producing said compounds and use thereof as materials which are cured radically through activation with actinic radiation and/or thermal activation or for obtaining such materials.

EFFECT: obtaining novel oligomeric urethane acrylates which are activated with actinic radiation, have low viscosity and enable to obtain coatings with very good mechanical qualities, particularly high hardness, flexibility and deformability, considerable adhesion to different substrates, especially sheet metal, high resistance to the effect of chemical products and atmospheric corrosion, and also having remarkable effect from dull to satin gloss.

26 cl, 14 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to radiation-curable compositions, as well as a coating containing said composition for protecting metal substrates from corrosion. The composition consists of radiation-curable urethane(meth)acrylate with OH number ≥ 10 mg KOH/g, a monofunctional, radiation-curable reactive diluent, an acidic adhesion promoter, a photoinitiator, a multifunctional reactive diluent, radiation-curable resins and other inert additives. The adhesion booster used is phosphoric or phosphonic acid or products of their conversion with functionalised acrylates.

EFFECT: radiation-curable compositions, having good corrosion-protective properties for metal substrates, which are elastic and capable of being well moulded.

15 cl, 2 tbl, 5 ex

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