Chlorothio-sulfonamide-modified rubbery terpolymers and their blends

Claim 2

A MODIFIED RUBBERY TERPOLYMER WHICH COMPRISES THE ADMIXTURE PRODUCT OF A RUBBERY TERPOLYMER OF ETHYLENE, A-OLE FIN CONTAINING 3 TO 6 CARBON ATOMS AND ANON-CONJUGATED DIENE CONTAINING 6 TO 12 CARBONATOMS, WHEREIN THE DIENE IS INCORPORATED TO THE EXTENT OF ABOUT 0.1 O ABOUT 1.0 MOLES PER KILOGRAM OF POLYMER, WITH AN N-CHLOROTHIO-SULFONAMDE OF THE FORMULA

Claim 3

The modified rubbery terpolymer of claim 1 where said terpolymer is comprised of a mole ratio of ethylene to propylene in the range of about 30/70 to about 70/30 and contains about 0.1 to about 0.8 mole of non-conjugated diene termonomere per kilogram of polymer, where said diene is selected from 1,4-hexadiene, dicyclopentadiene, 5-ethylidene-2-norbornene, 5-methylene-2-norbornene, 4,7,8,9-tetrahydroindene and 1,5-cyclooctadiene.

Claim 4

The modified rubbery terpolymer of claim 2 where, in the N-chlorothiosulfonamide, R1 and R2 are selected from alkyl radicals having 1 to 6 carbon atoms, phenyl radicals, monoalkyl substituted phenyl radicals having from 7 to 10 carbon atoms and dialkyl substituted phenyl radicals having from 8 to 11 carbon atoms where such alkyl substituent or substituents are radicals selected from the group consisting of methyl, ethyl, and all isomeric forms of propyl and butyl radicals, and from the p-chlorophenyl radical.

Claim 5

The modified rubbery terpolymer of claim 2 where, in the N-chlorothio-sulfonamide, the R1 radicals are selected from methyl, tert butyl, cyclohexyl, 2-eicosyl, benzyl, 2-(p-n-undecylphenyl)-2-propyl, phenyl, 1-naphthyl, p-tolyl, 3-ethyl-4-(n-dodecyl)phenyl, p-chlorophenyl and 3-chloro-4-(n-butyl)phenyl radicals and the R2 radicals are selected from methyl, tert butyl, 1-eicosyl, cyclohexyl, benzyl, 1-(p-n-dodecylphenyl)-1-ethyl, phenyl, 1-naphthyl, m-tolyl, 3,4-di-(n-heptyl)phenyl, p-bromophenyl and 3-chloro-4-(n-butyl)-phenyl radicals.

Claim 6

The modified rubbery terpolymer of claim 2 where said N-chlorothio-sulfonamide is selected from N-chlorothio-N-methyl-methanesulfonamide, N-chlorothio-N-methyl-benzenesulfonamide, N-chlorothio-N-methyl-p-toluenesulfonamide, N-chlorothio-N-methyl-ethanesulfonamide, N-chlorothio-N-phenyl-p-toluenesulfonamide, N-chlorothio-N-(1-propyl)-p-chlorobenzenesulfonamide, N-chlorothio-N-(2-propyl)-methanesulfonamide, N-chlorothio-N-phenyl-methanesulfonamide, N-chlorothio-N,N'',N'' -trimethylsulfamide, N-chlorothio-N-methyl-N'',N''-(pentamethylene)sulfamide, N-chlorothio-N-methyl-N'',N''-diethylsulfamide and N-chlorothio-N-phenyl-benzenesulfonamide.

Claim 7

A method of preparing the modified rubbery terpolymer of claim 1 which comprises mixing said N-chlorothio sulfonamide with a mixture of said terpolymer and an organic solvent selected from heptane, hexane, tetrachloroethylene, cyclohexane, methyl cyclohexane, chloroform, benzene and toluene.

Claim 8

A method of preparing the modified rubbery terpolymer of claim 1 which comprises milling a mixture of said N-chlorothio sulfonamide and a dispersant selected from mineral oil and chlorinated paraffin into said rubbery terpolymer.

Claim 9

A composite which comprises 100 parts by weight of modified rubbery terpolymer of claim 2 in admixture with about 18 to about 670 parts by weight of a rubbery polymer comprised of at least one of cis-1,4-polyisoprene natural rubber, synthetic cis-1,4-polyisoprene, polybutadiene, butadiene-styrene copolymer with a butadiene/styrene mole ratio in the range of about 60/40 to about 95/5, butadiene-acrylonitrile copolymer, polypentenamer of the type derived from open ring polymerization of cyclopentene, bromobutyl rubber, chlorobutyl rubber and polychloroprene.

Claim 10

The sulfur-cured composite of claim 8.

Claim 11

The composite of claim 8 which comprises about 15 to about 80 weight percent of said modified rubbery terpolymer where said N-chlorothio-sulfonamide is selected from N-chlorothio-N-methyl-methanesulfonamide, N-chlorothio-N-methyl-benzenesulfonamide, N-chlorothio-N-methyl-p-toluenesulfonamide, N-chlorothio N-ethyl-p-toluenesulfonamide, N-chlorothio-N-methyl-ethanesulfonamide, N-chlorothio-N-phenyl-p-toluenesulfonamide, N-chlorothio-N-(2-propyl)-methanesulfonamide, N-chlorothio-N-(1-propyl)-p-chlorobenzenesulfonamide, N-chlorothio-N-phenyl-methanesulfonamide, N-chlorothio-N,N'',N''-trimethylsulfamide, N-chlorothio-N-methyl-N'',N''-(pentamethylene)sulfamide, N-chlorothio-N-methyl-N'',N''-diethylsulfamide and N-chlorothio-N-phenyl-benzenesulfonamide.

Claim 12

The sulfur-cured composite of claim 10.

Claim 13

The modified rubbery terpolymer of claim 2 where said terpolymer is comprised of ethylene, propylene and a non-conjugated diene selected from 1,4-hexadiene and dicyclopentadiene and where, in said N-chlorothio-sulfonamide, R1 is selected from methyl, phenyl and p-tolyl radicals and R2 is selected from methyl and phenyl radicals.