Curing with complexes of selected diamines and alkali metal salts

Claim 2

IN A PROCESS FOR CURING AN AMINE-CURABLE POLYMER OR PREPOLYMER WITH A CURING AGENT WHICH IS EITHER

Claim 3

A COMPLEX OF 4,4'' -METHYLENE DIANILINE AND A SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, SODIUM BROMIDE, SODIUM IODIDE, LITHIUM NITRITE, AND SOLITHIUM BROMIDE, LITHIUM IODIDE, LITHIUM NITRITE, AND SO DIUM CYANIDE, OR

Claim 4

A COMPLEX OF 4,4'' -METHYLENE DIANILINE AND A SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, SODIUM BROMIDE, SODIUM IODIDE, LITHIUM NITRITE, AND SOLITHIUM BROMIDE, LITHIUM IODIDE, LITHIUM NITRITE, AND SO DIUM CYANIDE, OR

Claim 5

A COMPLEX OF RACEMIC 2,3-DI(4-AMINOPHENYL) BUTANE WITH A SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, SODIUM BROMIDE, POTASSIUM IODIDE, RUBIDIUM CHLORIDE, POTASSIUM BROMIDE, POTASSUM IODIDE, RUBIDIUM CHLORIDE, RUBIDIUM BROMIDE, RUBIDIUM IODIDE, CESIUM CHLORIDE, CESIUM BROMIDE AND CESIUM IODIDE, THE RATIO OF SAID DIANILINE OR SAID BUTANE TO SAID SALT IN THE COMPLEX BEING 3 MOLES TO 1 MOLE, THE IMPROVEMENT COMPRISING EMPLOYING SAID CURING AGENT IN CONJUNCTION WITH A POLAR OR POLARIZABLE COMPOUND HAVING NO REACTIVE HYDROGEN AND SELECTED FOM (A) COMPOUNDS HAVING DIPOLE MOMENTS IN EXCESS OF 0.4 DEBYE IN WHICH THERE ARE NO MORE THAN A TOTAL OF EIGHT CH3-, CH2, OR TERTIARY CARBON RADICALS PER POLAR GROUP CONTAINED IN THE COMPOUND, AND (B) BENZENE AND BIPHENYL, SAID POLAR OR POLARIZABLE COMPOUND REPRESENTING ABOUT 0.25-25% BY WEIGHT OF THE TOTAL WEIGHT OF COMPLEX AND POLAR COMPOUND.

Claim 6

A COMPLEX OF RACEMIC 2,3-DI(4-AMINOPHENYL) BUTANE WITH A SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, SODIUM BROMIDE, POTASSIUM IODIDE, RUBIDIUM CHLORIDE, POTASSIUM BROMIDE, POTASSUM IODIDE, RUBIDIUM CHLORIDE, RUBIDIUM BROMIDE, RUBIDIUM IODIDE, CESIUM CHLORIDE, CESIUM BROMIDE AND CESIUM IODIDE, THE RATIO OF SAID DIANILINE OR SAID BUTANE TO SAID SALT IN THE COMPLEX BEING 3 MOLES TO 1 MOLE, THE IMPROVEMENT COMPRISING EMPLOYING SAID CURING AGENT IN CONJUNCTION WITH A POLAR OR POLARIZABLE COMPOUND HAVING NO REACTIVE HYDROGEN AND SELECTED FOM (A) COMPOUNDS HAVING DIPOLE MOMENTS IN EXCESS OF 0.4 DEBYE IN WHICH THERE ARE NO MORE THAN A TOTAL OF EIGHT CH3-, CH2, OR TERTIARY CARBON RADICALS PER POLAR GROUP CONTAINED IN THE COMPOUND, AND (B) BENZENE AND BIPHENYL, SAID POLAR OR POLARIZABLE COMPOUND REPRESENTING ABOUT 0.25-25% BY WEIGHT OF THE TOTAL WEIGHT OF COMPLEX AND POLAR COMPOUND.

Claim 7

a complex of racemic 2,3-di(4-aminophenyl) butane with a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, potassium chloride, potassium bromide, potassium iodide, rubidium chloride, rubidium bromide, rubidium iodide, cesium chloride, cesium bromide and cesium iodide; the ratio of said dianiline or said butane to said salt in the complex being 3 moles to 1 mole, the improvement comprising employing said curing agent in conjunction with a polar or polarizable compound having no reactive hydrogen and selected from (A) compounds having dipole moments in excess of 0.4 debye in which there are no more than a total of eight CH3-, CH2, or tertiary carbon radicals per polar group contained in the compound, and (B) benzene and biphenyl; said polar or polarizable compound representing about 0.25-25% by weight of the total weight of complex and polar compound.

Claim 8

a complex of racemic 2,3-di(4-aminophenyl) butane with a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, potassium chloride, potassium bromide, potassium iodide, rubidium chloride, rubidium bromide, rubidium iodide, cesium chloride, cesium bromide and cesium iodide; the ratio of said dianiline or said butane to said salt in the complex being 3 moles to 1 mole, the improvement comprising employing said curing agent in conjunction with a polar or polarizable compound having no reactive hydrogen and selected from (A) compounds having dipole moments in excess of 0.4 debye in which there are no more than a total of eight CH3-, CH2, or tertiary carbon radicals per polar group contained in the compound, and (B) benzene and biphenyl; said polar or polarizable compound representing about 0.25-25% by weight of the total weight of complex and polar compound.

Claim 9

The process of claim 1 wherein said curing agent is a complex of 3 moles of 4,4''-methylene dianiline and 1 mole of a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, sodium nitrite, lithium chloride, lithium bromide, lithium iodide, lithium nitrite and sodium cyanide.

Claim 10

a complex selected from the group consisting of (a) racemic 2,3-di (4-aminophenyl) butane and a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, potassium chloride, potassium bromide, potsassium iodide, rubidium chloride, rubidium bromide, rubidium iodide, cesium chloride, cesium bromide and cesium iodide, and (b) 4, 4''-methylene dianiline and a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, sodium nitrite, lithium chloride, lithium bromide, lithium iodide, lithium nitrite and sodium cyanide, the ratio of said dianiline and said 2,3-di(4-aminophenyl) butane to said salt in said complexes being 3 moles to 1 mole; said polar or polarizable compound representing about 0.25 to 25% by weight of the total weight of complex and polar compound.

Claim 11

a complex selected from the group consisting of (a) racemic 2,3-di (4-aminophenyl) butane and a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, potassium chloride, potassium bromide, potsassium iodide, rubidium chloride, rubidium bromide, rubidium iodide, cesium chloride, cesium bromide and cesium iodide, and (b) 4, 4''-methylene dianiline and a salt selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, sodium nitrite, lithium chloride, lithium bromide, lithium iodide, lithium nitrite and sodium cyanide, the ratio of said dianiline and said 2,3-di(4-aminophenyl) butane to said salt in said complexes being 3 moles to 1 mole; said polar or polarizable compound representing about 0.25 to 25% by weight of the total weight of complex and polar compound.

Claim 12

The process of claim 1 wherein said prepolymer or polymer is a urethane containing free isocyanato groups.

Claim 13

The process of claim 3 wherein said complex is derived from 4,4''-methylene dianiline and sodium chloride.

Claim 14

The process of claim 3 wherein said complex is derived from 4,4''-methylene dianiline and lithium chloride.

Claim 15

The process of claim 3 wherein said polar compound (A) is selected from the group consisting of esters, ketones, ethers, halogenated hydrocarbons, tertiary amines, fully substituted amides, sulfones, sulfoxides and sulfides.

Claim 16

The process of claim 3 wherein said polar compound (A) is selected from the group consisting of esters of carboxylic acids, ketones, and halogenated hydrocarbons having a molecular weight above 1,000.

Claim 17

The process of claim 3 wherein said polar compound is a ketone.

Claim 18

The process of claim 8 wherein said ketone is acetone.

Claim 19

The process of claim 8 wherein said ketone is methyl ethyl ketone.

Claim 20

The process of claim 3 wherein said cure takes place at ambient conditions.

Claim 21

The process of claim 3 wherein said curing takes place at a temperature of about 25*-150*C.

Claim 22

A new composition of matter, a mixture of a amine-curable polymer or copolymer with

Claim 23

A new composition of matter, a mixture of a amine-curable polymer or copolymer with

Claim 24

The composition of claim 13 wherein said amine-curable prepolymer or polymer is a urethane prepolymer containing free isocyanate groups.

Claim 25

The composition of claim 14 wherein said polar compound (A) is selected from the group consisting of esters, ketones, ethers, halogenated hydrocarbons, tertiary amines, fully substituted amides, sulfones, sulfoxides and sulfides.

Claim 26

The composition of claim 15 wherein said polar compound is selected from the group consisting of esters of carboxylic acids, ketones and halogenated hydrocarbons having a molecular weight below 1,000.

Claim 27

The Composition of claim 16 wherein said polar compound is a ketone.

Claim 28

The composition of claim 17 wherein said ketone is acetone.

Claim 29

The composition of claim 17 wherein said ketone is methyl ethyl ketone.

Claim 30

The composition of claim 14 wherein said complex is derived from 4''4-methylene-dianiline and sodium chloride.