Chlorinated hydrocarbons and polysulfide rubber sealant compositions incorporating same

Claim 2

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; and a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated hydrocarbon selected from chlorinated paraffins containing from 16 to 20 carbon atoms per molecule, chlorinated alpha-olefins containing from 16 to 20 carbon atoms per molecule, and mixtures thereof; the chlorine content of the chlorinated hydrocarbon ranging from 52 to 58 weight percent; the chlorinated hydrocarbon plasticizer having a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; the polysulfide rubber sealant formulation being stable when cured.

Claim 3

An improved polysulfide rubber sealant formulation according to claim 1 wherein the liquid polysulfide polymer is thiol-terminated; the chlorinated hydrocarbon is selected from chlorinated paraffins containing from 16 to 18 carbon atoms per molecule, chlorinated alpha-olefins containing from 16 to 18 carbon atoms per molecule, and mixtures thereof; and the chlorinated hydrocarbon plasticizer has a viscosity of less than about 40,000 centipoises at 25° C. and has a heat loss value of less than about 0.5 weight percent.

Claim 4

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; and a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a combination of (a) a number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C. and having a heat loss value of less than about 0.5 weight percent; the liquid polysulfide polymer being thiol-terminated; and the polysulfide rubber sealant formulation being stable when cured.

Claim 5

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; and a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a combination of (a) a number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C. and having a heat loss value of less than about 0.5 weight percent; the liquid polysulfide polymer being thiol-terminated; and the polysulfide rubber sealant formulation being stable when cured.

Claim 6

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; and a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C. and having a heat loss value of less than about 0.5 weight percent; the liquid polysulfide polymer being thiol-terminated; and the polysulfide rubber sealant formulation being stable when cured.

Claim 7

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; and a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C. and having a heat loss value of less than about 0.5 weight percent; the liquid polysulfide polymer being thiol-terminated; and the polysulfide rubber sealant formulation being stable when cured.

Claim 8

An improved polysulfide rubber sealant formulation according to claim 1 wherein the chlorinated hydrocarbon plasticizer consists essentially of a mixture of equal parts by weight of an alpha-olefin containing 16 carbon atoms per molecule and an alpha-olefin containing 20 carbon atoms per molecule; the chlorine content of the chlorinated mixture ranges from 52 to 55 weight percent; and the chlorinated mixture has a viscosity of less than about 25,000 centipoises at 25° C. and has a heat loss value of less than about 0.5 weight percent.

Claim 9

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; a pigment; a retarding agent; and a filler; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of an effective amount of a curing agent.

Claim 10

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; a pigment; a retarding agent; and a filler; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of an effective amount of a curing agent.

Claim 11

An improved polysulfide rubber sealant formulation comprising 100 parts by weight of a thiol-terminated polysulfide polymer; from about 25 to about 100 parts by weight of a chlorinated hydrocarbon plasticizer consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; from about 5 to about 20 parts by weight of a titanium dioxide pigment; from about 0.1 to about 5 parts by weight of a stearic acid retarding agent; and from about 25 to about 100 parts by weight of a filler selected from the group consisting of carbon black, clay, and calcium carbonate; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of lead dioxide and phthalate ester.

Claim 12

An improved polysulfide rubber sealant formulation comprising 100 parts by weight of a thiol-terminated polysulfide polymer; from about 25 to about 100 parts by weight of a chlorinated hydrocarbon plasticizer consisting essentially of a chlorinated alpha-olefin containing 18 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 30,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; from about 5 to about 20 parts by weight of a titanium dioxide pigment; from about 0.1 to about 5 parts by weight of a stearic acid retarding agent; and from about 25 to about 100 parts by weight of a filler selected from the group consisting of carbon black, clay, and calcium carbonate; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of lead dioxide and phthalate ester.

Claim 13

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; a pigment; a retarding agent; and a filler; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of an effective amount of a curing agent.

Claim 14

An improved polysulfide rubber sealant formulation comprising a liquid polysulfide polymer; a chlorinated hydrocarbon plasticizer in an amount effective to plasticize said polysulfide polymer and consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 55.5 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; a pigment; a retarding agent; and a filler; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of an effective amount of a curing agent.

Claim 15

An improved polysulfide rubber sealant formulation comprising about 100 parts by weight of a thiol-terminated polysulfide polymer; from about 25 to about 100 parts by weight of a chlorinated hydrocarbon plasticizer consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 56 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; from about 5 to about 20 parts by weight of a titanium dioxide pigment; from about 0.1 to about 5 parts by weight of a stearic acid retarding agent; and from about 25 to about 100 parts by weight of a filler selected from the group consisting of carbon black, clay, and calcium carbonate; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of lead dioxide and phthalate ester.

Claim 16

An improved polysulfide rubber sealant formulation comprising about 100 parts by weight of a thiol-terminated polysulfide polymer; from about 25 to about 100 parts by weight of a chlorinated hydrocarbon plasticizer consisting essentially of a chlorinated alpha-olefin containing 16 carbon atoms per molecule; the chlorine content of the chlorinated alpha-olefin ranging from 54 to 56 weight percent; the chlorinated hydrocarbon plasticizer having a viscosity of less than about 10,000 centipoises at 25° C., a heat loss value of less than about 0.5 weight percent and a combination of (a) number of carbon atoms per molecule and (b) chlorine content sufficient to provide a non-fogging and compatible plasticizer in a polysulfide rubber sealant formulation; from about 5 to about 20 parts by weight of a titanium dioxide pigment; from about 0.1 to about 5 parts by weight of a stearic acid retarding agent; and from about 25 to about 100 parts by weight of a filler selected from the group consisting of carbon black, clay, and calcium carbonate; the polysulfide rubber sealant formulation being stable when cured, the curing being effected by the incorporation of from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of lead dioxide and phthalate ester.

Claim 17

A method for preparing an improved polysulfide rubber sealant formulation comprising mixing together the liquid polysulfide polymer and chlorinated hydrocarbon plasticizer of claim 1.

Claim 18

A method for preparing an improved polysulfide rubber sealant formulation comprising mixing together the liquid polysulfide polymer and the chlorinated hydrocarbon plasticizer of claim 3.

Claim 19

A method for preparing an improved polysulfide rubber sealant formulation comprising mixing together the liquid polysulfide polymer and the chlorinated hydrocarbon plasticizer of claim 4.

Claim 20

A method for preparing the improved polysulfide rubber sealant formulation of claim 6 comprising chlorinating a hydrocarbon consisting essentially of an alpha-olefin containing 18 carbon atoms per molecule to a chlorine content ranging from 54 to 55.5 weight percent; mixing the chlorinated alpha-olefin together with a liquid polysulfide polymer, a pigment, a retarding agent and a filler to form a polysulfide rubber sealant formulation; and curing the polysulfide rubber sealant formulation by incorporating an effective amount of a curing agent.

Claim 21

A method for preparing the improved polysulfide rubber sealant formulation of claim 8 comprising chlorinating a hydrocarbon consisting essentially of an alpha-olefin containing 16 carbon atoms per molecule to a chlorine content of 54 to 55.5 weight percent; mixing the chlorinated alpha-olefin together with a liquid polysulfide polymer, a pigment, a retarding agent and a filler to form a polysulfide rubber sealant formulation; and curing the polysulfide rubber sealant formulation by incorporating an effective amount of a curing agent.

Claim 22

A method for preparing the improved polysulfide rubber sealant formulation of claim 7 comprising chlorinating a hydrocarbon consisting essentially of an alpha-olefin containing 18 carbon atoms per molecule to a chlorine content ranging from 54 to 55.5 weight percent; mixing from about 25 to about 100 parts by weight of the chlorinated alpha-olefin together with 100 parts by weight of a liquid polysulfide polymer, from about 25 to about 100 parts by weight of a filler selected from carbon black, clay, and calcium carbonate, from about 0.1 to about 5 parts by weight of a stearic acid retarding agent and from about 5 to about 20 parts by weight of a titanium dioxide pigment to form a polysulfide rubber sealant formulation; and curing the polysulfide rubber sealant formulation by incorporating from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of phthalate ester and lead dioxide.

Claim 23

A method for preparing the improved polysulfide rubber sealant formulation of claim 9 comprising chlorinating a hydrocarbon consisting essentially of an alpha-olefin containing 16 carbon atoms per molecule to a chlorine content ranging from 54 to 55.5 weight percent; mixing from about 25 to about 100 parts by weight of the chlorinated alpha-olefin together with 100 parts by weight of a liquid polysulfide polymer, from about 25 to about 10 parts by weight of a filler selected from carbon black, clay and calcium carbonate, from about 0.1 to about 5 parts by weight of a stearic acid retarding agent and from about 5 to about 20 parts by weight of a titanium dioxide pigment to form a polysulfide rubber sealant formulation; and curing the polysulfide rubber sealant formulation by incorporating from about 5 to about 10 parts by weight of a curing paste comprising equal parts by weight of phthalate ester and lead dioxide.