Age resistors and age resistant polymeric compositions

Claim 2

A solid polymer containing segmeric units, at least a portion of said units being comprised of at least one of the age resistant segmeric entities selected from the group consisting of those having the following structural formula: ##STR12## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, carboxymethyl radical and carbalkoxymethyl radicals and wherein R 3 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, phenyl carboxyl radical and carbalkoxy radicals, and wherein the polymer contains at least 40 parts by weight of the segmeric form of diene monomer per 100 parts by weight of the polymer wherein the age resistant segmeric entity according to the above structural formula comprises 0.10 part to 10.0 parts by weight per 100 parts by weight of the polymer.

Claim 3

A process of preparing an age resistant polymeric composition comprising polymerizing in an emulsion free radical polymerization system, a monomer system containing at least one monomeric age resister having the following structural formula: ##STR13## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, carboxymethyl radical and carbalkoxymethyl radicals and wherein R 3 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, phenyl, carboxyl radical and carbalkoxy radicals, and wherein the monomer system contains at least 40 parts by weight of diene monomer per 100 parts by weight of total monomer in the monomer system wherein the monomer system contains 0.10 part to 10.0 parts by weight of the phenolic monomer according to the above structural formula per 100 parts by weight of total monomer.

Claim 4

A process of preparing an age resistant polymeric composition comprising polymerizing in an emulsion free radical polymerization system, a monomer system containing at least one monomeric age resister having the following structural formula: ##STR13## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, carboxymethyl radical and carbalkoxymethyl radicals and wherein R 3 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, phenyl, carboxyl radical and carbalkoxy radicals, and wherein the monomer system contains at least 40 parts by weight of diene monomer per 100 parts by weight of total monomer in the monomer system wherein the monomer system contains 0.10 part to 10.0 parts by weight of the phenolic monomer according to the above structural formula per 100 parts by weight of total monomer.

Claim 5

The process according to claim 2 wherein the diene monomer is conjugated 1,3-diene monomer.

Claim 6

The polymer of claim 1 wherein the polymer contains 0.1 to 5.0 parts by weight of the age resistant segmeric entity.

Claim 7

The process according to claim 3 wherein the monomer system is comprised of from 50 to 99.9 parts of at least one conjugated diene monomer, 0 to 49.9 parts of at least one compound selected from that group consisting of vinyl monomers and vinylidene monomers and 0.10 to 10.0 parts by weight of at least one phenolic monomer according to claim 3, all parts being by weight per 100 parts by weight of total monomer.

Claim 8

The process according to claim 3 wherein R 2 is selected from the group consisting of hydrogen, methyl, carboxymethyl radical and carbalkoxymethyl radicals having the following structural formula: ##STR14## wherein R 10 is an alkyl radical having from 1 to 4 carbon atoms, wherein R 3 is selected from the group consisting of hydrogen, phenyl, a carboxyl radical and carbalkoxy radicals having the following structural formula: ##STR15## wherein R 11 is an alkyl radical having from 1 to 4 carbon atoms

Claim 9

The process according to claim 6 wherein R 10 and R 11 are selected from the group consisting of methyl and ethyl radicals.

Claim 10

The process according to claim 6 wherein R and R 1 are tertiary butyl radicals.

Claim 11

The process of claim 2 wherein the monomers system contains 0.1 to 5.0 parts by weight of the phenolic monomer.

Claim 12

The process according to claim 3 wherein the emulsion free radical polymerization system contains an initiator system comprised of at least one initiator selected from the group consisting of aralkyl peroxides, aliphatic peroxides, aromatic acyl peroxides, perester peroxides, aralkyl hydroperoxides, aliphatic hydroperoxides, persulfate initiators, perborate initiators and perphosphate initiators.

Claim 13

The process according to claim 3 wherein the emulsion free radical polymerization system contains an initiator system comprised of a reduction/oxidation initiator system.

Claim 14

The process according to claim 2 wherein R and R 1 are selected from the group consisting of tert.butyl, tert.amyl and tert.hexyl radicals, R 2 is selected from the group consisting of hydrogen and methyl and R 3 is hydrogen and wherein the diene monomer is conjugated 1,3-diene monomer.

Claim 15

The solid polymer according to claim 1 wherein R and R 1 are selected from the group consisting of tert.butyl, tert.amyl and tert.hexyl radicals, R 2 is selected from the group consisting of hydrogen and methyl and R 3 is hydrogen and wherein the diene monomer is conjugated 1,3-diene monomer.

Claim 16

The polymer according to claim 1 wherein R and R 1 are tertiary butyl radicals.

Claim 17

The polymer according to claim 1 wherein the segmeric form of the diene monomer is present at a level of at least 50 parts by weight per 100 parts by weight of the polymer and wherein the diene monomer is conjugated 1,3-diene monomer.

Claim 18

The polymer according to claim 1 wherein R 10 and R 11 are selected from the group consisting of methyl and ethyl radicals.

Claim 19

The polymer according to claim 15 wherein the polymer contains from 0.10 part to 10.0 parts by weight per 100 parts by weight of polymer of the age resistant segmeric unit and correspondingly 90 parts to 99.9 parts by weight of at least one segmeric form of at least one comonomer selected from the group consisting of conjugated 1,3-diene monomers, vinyl monomers and vinylidene monomers.

Claim 20

The polymer according to claim 17 wherein the polymer contains at least 50 percent by weight of at least one segmeric form of 1,3-butadiene.

Claim 21

The polymer according to claim 1 wherein the polymer contains 50 to 99.9 parts by weight of the segmeric form of at least one diene monomer, 0 to 49.9 parts by weight of at least one compound selected from the group consisting of vinyl monomers and vinylidene monomers and 0.10 to 5.0 parts by weight of at least one monomeric age resister, all parts being by weight per 100 parts by weight of polymer.

Claim 22

The polymer according to claim 15 wherein the polymer has a macro gel content of less than 10 percent.

Claim 23

The polymer according to claim 15 wherein the polymer possesses a number average molecular weight of at least 60,000 and has a macro gel content of less than 50 percent.

Claim 24

The polymer according to claim 17 wherein R 2 is selected from the group consisting of hydrogen, methyl, a carboxymethyl radical and carbalkoxymethyl radicals having the following structural formula: ##STR16## wherein R 10 is an alkyl radical having from 1 to 4 carbon atoms, wherein R 3 is selected from the group consisting of hydrogen, phenyl, a carboxyl radical and carbalkoxy radicals having the following structural formula: ##STR17## wherein R 11 is an alkyl radical having from 1 to 4 carbon atoms.

Claim 25

An age resistant polymeric composition comprising a polymer susceptible to oxygen degradation having incorporated therein a stabilizing amount of a compound having the following structural formula: ##STR18## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 is selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms, carboxymethyl radical and carbalkoxymethyl radicals and wherein R 3 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, phenyl and substituted phenyl, carboxyl radical and carbalkoxy radicals.

Claim 26

An age resistant polymeric composition comprising a polymer susceptible to oxygen degradation having incorporated therein a stabilizing amount of a compound having the following structural formula: ##STR18## wherein R and R 1 are tertiary alkyl radicals having from 4 to 8 carbon atoms, wherein R 2 is selected from the group consisting of hydrogen, alkyl radicals having from 1 to 4 carbon atoms, carboxymethyl radical and carbalkoxymethyl radicals and wherein R 3 is selected from the group consisting of hydrogen; alkyl radicals having from 1 to 4 carbon atoms, phenyl and substituted phenyl, carboxyl radical and carbalkoxy radicals.