Polyhydroxybutadiene and amine terminated polybutadiene blends

Claim 2

A composition useful for the preparation of polyurea and/or polyurethane elastomers, sealants, coatings and binders which comprises a blend of (a) about 2 to about 98 parts by weight, based on the total weight of the composition, of a polyhydroxybutadiene homopolymer having the formula ##STR4## wherein n is an integer of from about 5 to about 1500, and (b) about 98 to about 2 parts by weight based on the total weight of the composition of an amine terminated polybutadiene having the formula ##STR5## wherein R is hydrogen, a straight or branched chain alkyl group containing from 1 to 10 carbon atoms or a substituted or unsubstituted aryl or aralkyl group containing one or more benzenoid rings which may be fused or joined by single valency bonds and n is an integer of from about 5 to about 1500.

Claim 3

A composition according to claim 1 wherein the amine terminated polybutadiene is a cyclohexylamine terminated polybutadiene.

Claim 4

A composition according to claim 1 wherein the amine terminated polybutadiene is a phenylamine terminated polybutadiene.

Claim 5

A composition according to claim 1 wherein the amine terminated polybutadiene is an n-butylamine terminated polybutadiene.

Claim 6

A process for the preparation of a polyurea and/or polyurethane which comprises reacting from about 10 to about 50 parts by weight, based on the total reaction mixture, an organic di- or polyisocyanate at a temperature of from about 0° C. to about 50° C., with a composition which comprises a blend of (a) from about 2 to about 98 parts by weight, based on the total weight of the composition, of a polyhydroxybutadiene homopolymer having the formula ##STR6## wherein n is an integer of from about 5 to about 1500, and (b) from about 98 to about 2 parts by weight, based on the total weight of the composition, of an amine terminated polybutadiene having the formula: ##STR7## wherein R is hydrogen, a straight or branched chain alkyl group containing from 1 to 10 carbon atoms or a substituted or unsubstituted aryl or aralkyl group containing one or more benzenoid rings which may be fused or joined by single valency bonds and n is an integer of from about 5 to about 1500.

Claim 7

A process for the preparation of a polyurea and/or polyurethane which comprises reacting from about 10 to about 50 parts by weight, based on the total reaction mixture, an organic di- or polyisocyanate at a temperature of from about 0° C. to about 50° C., with a composition which comprises a blend of (a) from about 2 to about 98 parts by weight, based on the total weight of the composition, of a polyhydroxybutadiene homopolymer having the formula ##STR6## wherein n is an integer of from about 5 to about 1500, and (b) from about 98 to about 2 parts by weight, based on the total weight of the composition, of an amine terminated polybutadiene having the formula: ##STR7## wherein R is hydrogen, a straight or branched chain alkyl group containing from 1 to 10 carbon atoms or a substituted or unsubstituted aryl or aralkyl group containing one or more benzenoid rings which may be fused or joined by single valency bonds and n is an integer of from about 5 to about 1500.

Claim 8

A process according to claim 5 wherein the reaction is carried out at a temperature of from about 25° C. to about 35° C.

Claim 9

A process according to claim 5 wherein diphenylmethane diisocyanate is employed in the reaction.

Claim 10

A process according to claim 5 wherein the amine terminated polybutadiene is a cyclohexylamine terminated polybutadiene.

Claim 11

A process according to claim 5 wherein the amine terminated polybutadiene is a phenylamine terminated polybutadiene.

Claim 12

A process according to claim 5 wherein the amine terminated polybutadienne is an n-butylamine terminated polybutadiene.

Claim 13

A process according to claim 5 wherein from about 15 to about 25 parts by weight of di- or polyisocyanate is employed.