Magnesium oxide dispersions

Claim 2

A chloroprene polymer containing a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer wherein there is from about 2 to about 16 parts of a dispersion of MgO by weight per hundred parts by weight of polymer, the total mount of surface active agent being from about 2.5 to about 50 parts based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 based upon per hundred parts by weight of MgO.

Claim 3

The chloroprene polymer according to claim 1 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol esters, polyoxyethylene acids, fatty alcohols, polyethylene glycols, nonylphenoxypoly (ethyleneoxy) ethanols, fatty acid esters of glycerol, ethylene glycol, polyethylene glycol or propylene glycol, and tetra esters of pentaerythritol and fatty acids and the ionic surface active agent is an alkyl aryl sulfonate or a metallic soap.

Claim 4

The chloroprene polymer according to claim 2 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, nonylphenoxypoly (ethyleneoxy) ethanols, and tetra ester of pentaerythritol and fatty acids and the metallic soap is a stearate of Ca, Al, Mg, or Fe.

Claim 5

The chloroprene polymer according to claim 3 wherein the rubber plasticizer is a petroleum oil.

Claim 6

The chloroprene polymer of claim 4 wherein the surface active agent is nonylphenoxypoly(ethyleneoxy) ethanol, the rubber plasticizer is a naphthenic petroleum oil and the metallic soap is calcium stearate.

Claim 7

The chloroprene polymer according to claim 5 which further contains a coumarone indene resin.

Claim 8

The chloroprene polymer of claim 4 wherein the rubber plasticizer is a naphthenic petroleum oil, the surface active agent is sorbitan monooleate and the metallic soap is calcium stearate.

Claim 9

The chloroprene polymer according to claim 7 which further contains a coumarone indene resin.

Claim 10

The chloroprene polymer according to claim 7 which further contains polyisobutylene.

Claim 11

The chloroprene polymer according to claim 4 wherein the rubber plasticizer is a naphthenic petroleum oil and the surface active agent is pentaerythritol tetra stearate.

Claim 12

In the method of utilizing MgO in the compounding and processing of chloroprene polymers, the improvement comprising employing a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer wherein there is from about 2 to about 16 parts of a dispersion of MgO by weight per hundred parts by weight of polymer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 13

In the method of utilizing MgO in the compounding and processing of chloroprene polymers, the improvement comprising employing a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer wherein there is from about 2 to about 16 parts of a dispersion of MgO by weight per hundred parts by weight of polymer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 14

The method according to claim 11 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol esters, polyoxyethylene acids, fatty alcohols, polyethylene glycols, nonylphenoxypoly (ethyleneoxy) ethanols, fatty acid esters of glycerol, ethylene glycol, polyethylene glycol or propylene glycol, and tetra esters of pentaerythritol and fatty acids and the ionic surface active agent is an alkyl aryl sulfonate or a metallic soap.

Claim 15

The method according to claim 12 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, nonylphenoxypoly (ethyleneoxy) ethanols, and tetra ester of pentaerythritol and fatty acids and the metallic soap is a stearate of Ca, Al, Mg, or Fe.

Claim 16

The method according to claim 13 wherein the rubber plasticizer is a petroleum oil.

Claim 17

The method according to claim 14 wherein the rubber plasticizer is a naphthenic petroleum oil, the surface active agent is sorbitan monooleate and the metallic soap is calcium stearate.

Claim 18

The method according to claim 14 wherein the rubber plasticizer is a naphthenic petroleum oil and the surface active agent is pentaerythritol tetra-stearate.

Claim 19

The method of claim 14 wherein the surface active agent is nonylphenoxypoly (ethyleneoxy) ethanol, the rubber plasticizer is a naphthenic petroleum oil and the metallic soap is calcium stearate.

Claim 20

The method according to claim 17 which further contains a coumarone indene resin.

Claim 21

The method according to claim 15 wherein the dispersion further contains a coumarone indene resin.

Claim 22

The method according to claim 15 wherein the dispersion further contains polyisobutylene.

Claim 23

A composition for use in the compounding and processing to chloroprene polymers comprising a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 24

A composition for use in the compounding and processing to chloroprene polymers comprising a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 25

The composition of claim 21 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol esters, polyoxyethylene acids, fatty alcohols, polyethylene glycols, nonylphenoxypoly (ethyleneoxy) ethanols, fatty acid esters of glycerol, ethylene glycol, pOlyethylene glycol or propylene glycol, and tetra esters of pentaerythritol and fatty acids and the ionic surface active agent is an alkyl aryl sulfonate or a metallic soap.

Claim 26

The composition of claim 22 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, nonylphenoxypoly (ethyleneoxy) ethanols and tetra ester of pentaerythritol and fatty acids and the metallic soap is a stearate of Ca, Al, Mg, or Fe.

Claim 27

The composition of claim 23 wherein the rubber plasticizer is a petroleum oil.

Claim 28

The composition of claim 24 wherein the rubber plasticizer is a naphthenic petroleum oil, the surface active agent is sorbitan monooleate and the metallic soap is calcium stearate.

Claim 29

The composition of claim 25 which further contains a coumarone indene resin.

Claim 30

The composition of claim 25 which further contains polyisobutylene.

Claim 31

The composition of claim 24 wherein the surface active agent is nonylphenoxypoly(ethyleneoxy) ethanol, the rubber plasticizer is a naphthenic petroleum oil and the metallic soap is calcium stearate.

Claim 32

The composition of claim 28 which further contains a coumarone indene resin.

Claim 33

The composition according to claim 24 wherein the rubber plasticizer is a naphthenic petroleum oil and the surface active agent is pentaerythritol tetra-stearate.

Claim 34

A process of producing a vulcanizable chloroprene polymer which comprises the addition of a dispersion of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer wherein there is from about 2 to about 16 parts of a dispersion of MgO by weight per hundred parts by weight of polymer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO to a composition comprising chloroprene.

Claim 35

A process of producing a vulcanizable chloroprene polymer which comprises the addition of a dispersion of MgO and at least one ionic or nonionic surface active agent or mixtures thereof and at least one rubber plasticizer wherein there is from about 2 to about 16 parts of a dispersion of MgO by weight per hundred parts by weight of polymer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO to a composition comprising chloroprene.

Claim 36

The process according to claim 31 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol esters, polyoxyethylene acids, fatty alcohols, polyethylene glycols, nonylphenoxypoly (ethyleneoxy) ethanols, fatty acid esters of glycerol, ethylene glycol, polyethylene glycol or propylene glycol, and tetra esters of pentaerythritol and fatty acids and the ionic surface active agent is an alkyl aryl sulfonate or a metallic soap.

Claim 37

The process according to claim 32 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, nonylphenoxypoly(ethyleneoxy) ethanols, and tetra ester of pentaerythritol and fatty acids and the metallic soap is a stearate of Ca, Al, Mg, or Fe.

Claim 38

The process according to claim 32 wherein the rubber plasticizer is a petroleum oil.

Claim 39

The process of claim 34 wherein the rubber plasticizer is a naphthenic petroleum oil, the surface active agent is sorbitan monooleate and the metallic soap is calcium stearate.

Claim 40

The process according to claim 34 wherein the rubber plasticizer is a naphthenic petroleum oil and the surface active agent is pentaerythritol tetra-stearate.

Claim 41

The process of claim 35 wherein the dispersible form of MgO further contains a coumarone indene resin.

Claim 42

The process of claim 35 wherein the dispersible form of MgO further contains polyisobutylene.

Claim 43

The process according to claim 34 wherein the surface active agent is nonylphenoxypoly(ethyleneoxy) ethanol, the rubber plasticizer is a naphthenic petroleum oil and the metallic soap is calcium stearate.

Claim 44

The process according to claim 39 which further contains a coumarone indene resin.

Claim 45

A stick or pellet for the use in the compounding anD processing of chloroprene polymers comprising a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixture thereof and at least one rubber plasticizer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 46

A stick or pellet for the use in the compounding anD processing of chloroprene polymers comprising a dispersion of MgO which is comprised of MgO and at least one ionic or nonionic surface active agent or mixture thereof and at least one rubber plasticizer, the total amount of surface active agent being from about 2.5 to about 50 parts by weight based upon per hundred parts by weight of MgO, and the amount of rubber plasticizer is from about 5 to about 70 parts by weight based upon per hundred parts by weight of MgO.

Claim 47

The stick or pellet according to claim 41 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol esters, polyoxyethylene acids, fatty alcohols, polyethylene glycols, nonylphenoxypoly(ethyleneoxy) ethanols, fatty acid esters of glycerol, ethylene glycol, polyethylene glycol or propylene glycol, and tetra esters of pentaerythritol and fatty acids and the ionic surface active agent is an alkyl aryl sulfonate or a metallic soap. 43 The stick or pellet according to claim 42 wherein the nonionic surface active agent is selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, nonylphenoxy-poly(ethyleneoxy) ethanols, and tetra ester of pentaerythritol and fatty acids and the metallic soap is a stearate of Ca, Al, Mg or Fe.

Claim 48

The stick or pellet according to claim 43 wherein the rubber plasticizer is a petroleum oil.

Claim 49

The stick or pellet according to claim 44 wherein the rubber plasticizer is a naphthenic petroleum oil, the surface active agent is sorbitan monooleate and the metallic soap is calcium stearate.

Claim 50

The stick or pellet according to claim 44 wherein the surface active agent is nonylphenoxypoly(ethyleneoxy) ethanol, the rubber plasticizer is a naphthenic petroleum oil and the metallic soap is calcium stearate.