Silicones bearing acylated diaminohydrocarbyl radicals and method therefor

Claim 2

An organopolysiloxane compound containing at least one siloxane unit selected from siloxane units having the formulae ##STR96## all other siloxane units in the organopolysiloxane compound being selected from siloxane units have the formulae ##STR97## wherein, at each occurrence, Z denotes H or R", R" denotes a monovalent hydrocarbon radical, R' denotes a monovalent radical selected from hydrocarbon radicals, halogenated hydrocarbon radicals, hydrogen atoms, --OR" radicals, --OH radicals and --OA radicals, Q and Q' each denote a divalent hydrocarbon radical, A denotes an acyl radical having the formula ##STR98## R denotes a monovalent hydrocarbon radical or a halogenated monovalent hydrocarbon radical, a has a value of 0, 1 or 2 and b has a value of 0, 1, 2 or 3.

Claim 3

An organopolysiloxane compound according to claim 1 wherein each Z denotes H and each Q' denotes --CH 2 CH 2 --.

Claim 4

An organopolysiloxane compound according to claim 2 wherein each R' contains no more than 6 carbon atoms and each R contains from 1 to 6 carbon atoms, inclusive.

Claim 5

An organopolysiloxane compound according to claim 3 consisting of two or more siloxane units selected from siloxane units having the formulae ##STR99## and, optionally, one or more siloxane units having the formula ##STR100##

Claim 6

An organopolysiloxane compound according to claim 4 having the average formula ##STR101## wherein c has an average value of from 0 to 1 and X denotes a radical selected from H, R" or A.

Claim 7

An organopolysiloxane compound according to claim 5 wherein each A denotes ##STR102##

Claim 8

An organopolysiloxane compound according to claim 3 consisting of at least one siloxane unit having the formula ##STR103## and at least one siloxane unit have the formula R' b SiO.sub.(4-b)/2.

Claim 9

An organopolysiloxane compound according to claim 7 having the formula ##STR104## wherein each Me denotes --CH 3 , m has an average value of from 0 to 10,000 and n has an average value of from 1 to 10,000.

Claim 10

An organopolysiloxane compound according to claim 8 wherein n has an average value of 1 for values of m less than 20 and an average value of from 1 to about 0.05 m for values of m equal to or greater than 20.

Claim 11

An organopolysiloxane compound according to claim 9 wherein each A denotes ##STR105##

Claim 12

An organopolysiloxane compound according to claim 3 consisting of at least one siloxane unit having the formula ##STR106## and at least one siloxane unit having the formula R' b SiO.sub.(4-b)/2.

Claim 13

An organopolysiloxane compound according to claim 11 having the formula ##STR107## wherein each Me denotes --CH 3 , m has an average value of from 0 to 10,000 and n has an average value of from 1 to 10,000.

Claim 14

An organopolysiloxane compound according to claim 12 wherein n has an average value of 1 for values of m less than 20 and an average value of from 1 to about 0.05 m for values of m equal to or greater than 20.

Claim 15

An organopolysiloxane compound according to claim 13 wherein each A denotes ##STR108##

Claim 16

A process for preparing an organopolysiloxane compound containing at least one siloxane unit selected from siloxane units having the formulae ##STR109## all other siloxane units in the organopolysiloxane compound being selected from siloxane units have the formulae ##STR110## said process comprising: (I) mixing components comprising (i) an amine-containing organopolysiloxane compound containing at least one siloxane unit having the formula ##STR111## all other siloxane units in the amine-containing organopolysiloxane compound having the formula R' b SiO.sub.(4-b)/2 and (ii) a monocarboxylic acid anhydride having the formula A 2 O, the amounts of component (i) and component (ii) being sufficient to provide at least one mol of component (ii) for every mol of component (i) and for every siloxane unit, exceeding one, having the formula ##STR112## in the average molecule of component (i) wherein, at each occurrence, Z denotes H or R", R" denotes a monovalent hydrocarbon radical, R' denotes a monovalent radical selected from hydrocarbon radicals, halogenated hydrocarbon radicals, hydrogen atoms, --OR" radicals, --OH radicals and --OA radicals, Q and Q' each denote a divalent hydrocarbon radical, A denotes an acyl radical having the formula ##STR113## R denotes a monovalent hydrocarbon radical or a halogenated monovalent hydrocarbon radical, Y denotes H or A, a has a value of 0, 1 or 2 and b has a value of 0, 1, 2 or 3, and (II) maintaining the mixture of (I) at a temperature of from 0° C. to 300° C. for a length of time sufficient for the formation of at least one siloxane unit selected from siloxane units having the formulae ##STR114##

Claim 17

A process for preparing an organopolysiloxane compound containing at least one siloxane unit selected from siloxane units having the formulae ##STR109## all other siloxane units in the organopolysiloxane compound being selected from siloxane units have the formulae ##STR110## said process comprising: (I) mixing components comprising (i) an amine-containing organopolysiloxane compound containing at least one siloxane unit having the formula ##STR111## all other siloxane units in the amine-containing organopolysiloxane compound having the formula R' b SiO.sub.(4-b)/2 and (ii) a monocarboxylic acid anhydride having the formula A 2 O, the amounts of component (i) and component (ii) being sufficient to provide at least one mol of component (ii) for every mol of component (i) and for every siloxane unit, exceeding one, having the formula ##STR112## in the average molecule of component (i) wherein, at each occurrence, Z denotes H or R", R" denotes a monovalent hydrocarbon radical, R' denotes a monovalent radical selected from hydrocarbon radicals, halogenated hydrocarbon radicals, hydrogen atoms, --OR" radicals, --OH radicals and --OA radicals, Q and Q' each denote a divalent hydrocarbon radical, A denotes an acyl radical having the formula ##STR113## R denotes a monovalent hydrocarbon radical or a halogenated monovalent hydrocarbon radical, Y denotes H or A, a has a value of 0, 1 or 2 and b has a value of 0, 1, 2 or 3, and (II) maintaining the mixture of (I) at a temperature of from 0° C. to 300° C. for a length of time sufficient for the formation of at least one siloxane unit selected from siloxane units having the formulae ##STR114##

Claim 18

A process according to claim 15 wherein each Z and each Y denotes H and Q' denots --CH 2 CH 2 --.

Claim 19

A process according to claim 16 wherein the amounts of component (i) and component (ii) that are mixed are sufficient to provide substantially one mol of component (ii) for every siloxane unit having the formula ##STR115## in the average molecule of component (i) and the resulting mixture is maintained at a temperature of from 50° to 150° C. until substantially all of said siloxane units have been fully modified.

Claim 20

A process according to claim 17 wherein component (i) has the formula ##STR116## wherein each Me denotes --CH 3 , m has an average value of from 0 to 10,000 and n has an average value of from 1 to 10,000.

Claim 21

A process according to claim 18 wherein n has an average value of 1 for values of m less than 20 and an average value of from 1 to about 0.05 m for values of m equal to or greater than 20.

Claim 22

A process according to claim 19 wherein component (ii) is acetic anhydride and said mixing is done under substantially anhydrous conditions and at room temperature.

Claim 23

A process according to claim 20 further comprising removing water, acetic acid and any unreacted acetic anhydride, from the product of the process by a process comprising distillation at a temperature of at least 120° C. thereby providing a residue which comprises organopolysiloxane compounds having the formulae ##STR117##

Claim 24

A process according to claim 16 wherein the amounts of component (i) and component (ii) that are mixed are sufficient to provide at least two mols of component (ii) for every siloxane unit having the formula ##STR118## in the average molecule of component (i) and the resulting mixture is maintained at a temperature of from 50° to 150° C. until substantially all of said siloxane units have been fully acylated.

Claim 25

A process according to claim 22 wherein component (i) has the formula ##STR119## and the silicon-containing product of the process has the formula ##STR120## wherein each Me denotes --CH 3 , m has an average value of from 0 to 10,000 and n has an average value of from 1 to 10,000.

Claim 26

A process according to claim 23 wherein n has an average value of 1 for values of m less than 20 and an average value of from 1 to about 0.05 m for values of m equal to or greater than 20.

Claim 27

A process according to claim 24 wherein component (ii) is acetic anhydride and said mixing is done under substantially anhydrous conditions and at room temperature.

Claim 28

A process according to claim 24 further comprising removing acetic acid and any unreacted acetic anhydride, from the fully acylated reaction product of the process.

Claim 29

The residue comprising organopolysiloxane compounds having the formulae ##STR121## obtained by the process of claim 21.

Claim 30

A process according to claim 17 wherein component (ii) is acetic anhydride and the process further comprises removing water, acetic acid and any unreacted acetic anhydride from the product of the process by a process comprising distillation at a temperature of at least 120° C. thereby providing a residue which comprises an acylated organopolysiloxane compound containing siloxane units having the formulae ##STR122##

Claim 31

The acylated organopolysiloxane compound-containing residue produced by the process of claim 28.

Claim 32

A process according to claim 22 wherein component (ii) is acetic anhydride and the process further comprises removing acetic acid, and any unreacted acetic anhydride from the fully acylated reaction product.

Claim 33

The fully acylated reaction product obtained by the process of claim 30.

Claim 34

The fully acylated reaction product obtained by the process of claim 26.

Claim 35

The fully modified reaction product obtained by the process of claim 20.