Unsaturated polyoxyalkylene adduct/fumarate diester reaction product for cellular foam stabilization

Claim 2

A composition comprising the product of a grafting reaction of (a) an unsaturated polyoxyalkylene adduct comprising an alkylene oxide adduct of a member selected from the group consisting of unsaturated organic carboxylic acids and unsaturated hydroxyl containing triglycerides with (b) at least one esterified unsaturated dibasic acid having the formula ##STR6## wherein u is 2 or 3, T 1 and T 2 are identical or different and represent a straight or branched, saturated or unsaturated hydrocarbon chain of 8 to 18 carbon atoms, and unsaturated diester reactant (b) includes an amount of fumarate diester effective to bring about grafting of greater than 75 percent by weight of unsaturated diester reactant (b) to the unsaturated polyoxyalkylene adduct, in the presence of an effective amount of a free-radical initiator.

Claim 3

The composition of claim 1 wherein the unsaturated polyoxyalkylene adduct is capped by treatment either before or after the free-radical initiated reaction with a capping agent capable of reacting with the hydroxyl groups of said adduct, whereby the hydroxyl number of said adduct is reduced to less than 50.

Claim 4

The composition of claim 1 wherein T 1 and T 2 are identical.

Claim 5

The composition of claim 3 wherein a fumarate diester comprises about 95 to 100 weight percent of the esterified unsaturated dibasic acid.

Claim 6

The composition of claim 4 wherein the fumarate diester is a member selected from the group consisting of dioleyl fumarate, dioctyl fumarate and ditridecyl fumarate.

Claim 7

The composition of claim 4 wherein the esterified unsaturated dibasic acid comprises about 5 to 40 weight percent of the free-radical initiated reaction mixture, and the initiator comprises from about 1 to 30 weight percent, based on the weight of the esterified unsaturated dibasic acid.

Claim 8

The composition of claim 6 wherein the unsaturated polyoxyalkylene adduct is ethoxylated castor oil.

Claim 9

The composition of claim 7 wherein the fumarate diester is ditridecyl fumarate.

Claim 10

The composition of claim 4 wherein the unsaturated polyoxyalkylene adduct is capped by treatment either before or after the free-radical initiated reaction with a capping agent capable of reacting with the hydroxyl groups of said adduct, whereby the hydroxyl number of said adduct is reduced to less than 50.

Claim 11

The composition of claim 9 wherein the esterified unsaturated dibasic acid comprises about 5 to 40 weight percent of the free-radical initiated reaction mixture, and the initiator comprises from about 1 to 30 weight percent, based on the weight of the esterified unsaturated dibasic acid.

Claim 12

The composition of claim 10 wherein the unsaturated polyoxyalkylene adduct is ethoxylated castor oil.

Claim 13

The composition of claim 11 wherein the fumarate diester is ditridecyl fumarate.

Claim 14

A process for the preparation of a cellular foam stabilizer comprising grafting (a) an unsaturated polyoxyalkylene adduct comprising an alkylene oxide adduct of a member selected from the group consisting of unsaturated organic carboxylic acids and unsaturated hydroxyl containing triglycerides with (b) at least one esterified unsaturated dibasic acid having the formula ##STR7## wherein u is 2 or 3, T 1 and T 2 are identical or different and represent a straight or branched, saturated or unsaturated hydrocarbon chain of 8 to 18 carbon atoms, and unsaturated diester reactant (b) includes an amount of fumarate diester effective to bring about grafting of greater than 75 percent by weight of unsaturated diester reactant (b) to the unsaturated polyoxyalkylene adduct, in the presence of an effective amount of a free-radical initiator.

Claim 15

A process for the preparation of a cellular foam stabilizer comprising grafting (a) an unsaturated polyoxyalkylene adduct comprising an alkylene oxide adduct of a member selected from the group consisting of unsaturated organic carboxylic acids and unsaturated hydroxyl containing triglycerides with (b) at least one esterified unsaturated dibasic acid having the formula ##STR7## wherein u is 2 or 3, T 1 and T 2 are identical or different and represent a straight or branched, saturated or unsaturated hydrocarbon chain of 8 to 18 carbon atoms, and unsaturated diester reactant (b) includes an amount of fumarate diester effective to bring about grafting of greater than 75 percent by weight of unsaturated diester reactant (b) to the unsaturated polyoxyalkylene adduct, in the presence of an effective amount of a free-radical initiator.

Claim 16

The composition of claim 1 wherein a fumarate diester comprises about 95 to 100 weight percent of the esterified unsaturated dibasic acid.

Claim 17

The composition of claim 14 wherein the unsaturated polyoxyalkylene adduct is ethoxylated castor oil.

Claim 18

The composition of claim 14 wherein T 1 and T 2 are identical and the unsaturated polyoxyalkylene adduct is ethoxylated castor oil.

Claim 19

The composition of claim 16 wherein the fumarate diester is a member selected from the group consisting of dioleyl fumarate, dioctyl fumarate and ditridecyl fumarate.

Claim 20

The composition of claim 8 wherein the ethylene oxide content of the ethoxylated castor oil is 35 to 40 moles per mole of oil.

Claim 21

The composition of claim 12 wherein the ethylene oxide content of the ethoxylated castor oil is 35 to 40 moles per mole of oil.

Claim 22

The process of claim 13 wherein T 1 and T 2 are identical, the esterified unsaturated dibasic acid comprises about 5 to 40 weight percent of the free-radical initiated reaction mixture, the fumarate diester is ditridecyl fumarate and comprises about 95 to 100 weight percent of the esterified unsaturated dibasic acid, the unsaturated polyoxyalkylene adduct is ethoxylated castor oil, and the ethylene oxide content of the ethoxylated castor oil is 35 to 40 moles per mole of oil.

Claim 23

The process of claim 13 wherein the unsaturated polyoxyalkylene adduct is capped by treatment either before or after the free-radical initiated reaction with a capping agent capable of reacting with the hydroxyl groups of said adduct, whereby the hydroxyl number of said adduct is reduced to less than 50.

Claim 24

The process of claim 21 wherein T 1 and T 2 are identical, the esterified unsaturated dibasic acid comprises about 5 to 40 weight percent of the free-radical initiated reaction mixture, the fumarate diester is ditridecyl fumarate and comprises about 95 to 100 weight percent of the esterified unsaturated dibasic acid, the unsaturated polyoxyalkylene adduct is ethoxylated castor oil, and the ethylene oxide content of the ethoxylated castor oil is 35 to 40 moles per mole of oil.

Claim 25

The composition of claim 16 wherein the ethylene oxide content of the ethoxylated castor oil is 35 to 40 moles per mole of oil.

Claim 26

The composition of claim 23 wherein the unsaturated polyoxyalkylene adduct is capped by treatment either before or after the free-radical initiated reaction with a capping agent capable of reacting with the hydroxyl groups of said adduct, whereby the hydroxyl number of said adduct is reduced to less than 50.