Curable epoxy resins

Claim 2

A composition of matter comprising an epoxy resin, a cure initiator, and an accelerator of the general formula ##STR4## where Q is independently selected from the class consisting of Si--R 3 or hydrogen and, R is independently selected from the class consisting of hydrogen, monovalent alkyl (including aralkyl) groups of from 1 to 8 carbon atoms; aryl, alkaryl, vinyl, and allyl radicals, A is independently selected from alkyl radicals the same as R above, halogen and the nitro radical, where A can be ortho-, meta-, or para- to either of the --OQ radicals, and m is an integer from 1 to 2, inclusive, with the proviso, that only one Q can be hydrogen, and only one R can be hydrogen on one silicon atom.

Claim 3

A composition of matter as in claim 1, wherein the cure initiator is a titanium or zirconium ester.

Claim 4

A composition of matter as in claim 1 wherein the accelerator has the formula ##STR5##

Claim 5

A composition of matter as in claim 1 wherein the accelerator has the formula ##STR6##

Claim 6

A composition of matter as in claim 1 wherein the accelerator has the formula ##STR7##

Claim 7

A composition of matter as in claim 1, wherein the accelerator has the formula ##STR8##

Claim 8

A composition of matter as in claim 1, wherein the accelerator has the formula ##STR9##

Claim 9

A composition of matter as in claim 1, wherein the accelerator has the formula ##STR10##

Claim 10

A composition of matter as in claim 1 wherein the accelerator has the formula ##STR11##

Claim 11

A composition of matter as in claim 1, wherein the accelerator has the formula ##STR12##

Claim 12

A composition of matter as in claim 1 wherein the cure initiator is a zirconium ester and the accelerator has the general formula ##STR13## where Q is independently selected from the class consisting of Si--R 3 or hydrogen and, R is independently selected from the class consisting of hydrogen, monovalent alkyl (including aralkyl) groups of from 1 to 8 carbon atoms; aryl, alkaryl, vinyl, and allyl radicals, A is independently selected from alkyl radicals the same as R above, halogen and the nitro radical, where A can be ortho-, meta-, or para- to either of the --OQ radicals, and m is an integer from 1 to 2, inclusive, with the proviso, that only one Q can be hydrogen, and only one R can be hydrogen on one silicon atom.

Claim 13

A composition of matter as in claim 1, wherein the cure initiator is a titanium ester and the accelerator has the general formula ##STR14## where Q is independently selected from the class consisting of Si--R 3 or hydrogen and, R is independently selected from the class consisting of hydrogen, monovalent alkyl (including aralkyl) grousp of from 1 to 8 carbon atoms; aryl, alkaryl, vinyl, and allyl radicals, A is independently selected from alkyl radicals the same as R above, halogen and the nitro radical, where A can be ortho-, meta-, or para- to either of the --OQ radicals, and m is an integer from 1 to 2, inclusive, with the proviso, that only one Q can be hydrogen, and only one R can be hydrogen on one silicon atom.

Claim 14

A composition of matter as in claim 2 wherein the cure initiator is a titanate ester and the accelerator is a compound of the formula ##STR15##

Claim 15

A composition of matter as in claim 1 wherein the cure initiator is a titanate ester and the accelerator is a compound of the formula ##STR16##

Claim 16

A composition of matter as in claim 1 where in the cure initiator is a titanate ester and the accelerator is a compound of the formula ##STR17##

Claim 19

where Q is independently selected from the class consisting of Si--R 3 or hydrogen and, R is independently selected from the class consisting of hydrogen, monovalent alkyl (including aralkyl) groups of from 1 to 8 carbon atoms; aryl, alkaryl, vinyl, and allyl radicals, A is independently selected from alkyl radicals the same as R above, halogen and the nitro radical, where A can be ortho-, meta-, or para- to either of the --OQ radicals, and m is an integer from 1 to 2, inclusive, with the proviso, that only one Q can be hydrogen, and only one R can be hydrogen on one silicon atom. (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.

Claim 20

where Q is independently selected from the class consisting of Si--R 3 or hydrogen and, R is independently selected from the class consisting of hydrogen, monovalent alkyl (including aralkyl) groups of from 1 to 8 carbon atoms; aryl, alkaryl, vinyl, and allyl radicals, A is independently selected from alkyl radicals the same as R above, halogen and the nitro radical, where A can be ortho-, meta-, or para- to either of the --OQ radicals, and m is an integer from 1 to 2, inclusive, with the proviso, that only one Q can be hydrogen, and only one R can be hydrogen on one silicon atom. (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.

Claim 21

A method for curing an epoxy resin according to claim 16, wherein the cure initiator is a titanium ester.

Claim 22

A method for curing an epoxy resin according to claim 16, wherein the cure initiator is a zirconium ester.

Claim 23

The heat cured product of claim 1.

Claim 24

The heat cured product of claim 2.

Claim 25

The heat cured composition of claim 3.

Claim 26

The heat cured composition of claim 4.

Claim 27

The heat cured composition of claim 5.

Claim 28

The heat cured composition of claim 6.

Claim 29

The heat cured composition of claim 7.

Claim 30

The heat cured composition of claim 8.

Claim 31

The heat cured composition of claim 9.

Claim 32

The heat cured composition of claim 10.

Claim 33

The heat cured composition of claim 11.

Claim 34

The heat cured composition of claim 12.

Claim 35

The heat cured composition of claim 13.

Claim 36

The heat cured composition of claim 14.

Claim 37

The heat cured composition of claim 15.