Ethylene-acrylic acid type interpolymer compositions and films having increased slip and reduced block

Claim 2

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations; said ethylene interpolymer having a melt flow value of from about 0.01 to about 50 dg/min; (b) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of saturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a saturated alkyl group having from 13 to 25 carbon atoms and R 2 is a saturated alkyl group having from 14 to 26 carbon atoms; and (c) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of unsaturated or mixed unsaturated secondary fatty acid amide of the formula R 3 --CO--NH--R 4 , wherein R 3 is a mono-olefinically unsaturated alkyl group having from 17 to 23 carbon atoms or a saturated alkyl group having from 13 to 25 carbon atoms, R 4 is a mono-olefinically unsaturated alkyl group having from 18 to 24 carbon atoms or a saturated alkyl group having from 14 to 26 carbon atoms, and at least one of said R 3 and R 4 is mono-olefinically unsaturated.

Claim 3

The composition of claim 1, wherein the melt flow value of the ethylene interpolymer is from about 0.5 to about 25 dg/min.

Claim 4

The composition of claim 1, wherein the ethylene interpolymer has acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer.

Claim 5

The composition of claim 1, wherein the ethylene interpolymer has methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer.

Claim 6

The composition of claim 1, wherein the ethylene interpolymer comprises said ionomer in which said cations are selected from the group consisting of: cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium.

Claim 7

The composition of claim 1, further comprising compounded with said interpolymer, finely divided inorganic in an amount of from about 0.025 to about 1.5 percent by weight of the composition.

Claim 8

The composition of claim 6, wherein said finely divided inorganic has a surface area of from about 0.7 to about 75 m 2 /g, an oil absorption value of from about 21 to about 175 g oil per 100 g inorganic, and a weight average particle size of from about 0.02 to about 30 microns with at least 60 percent of the particles being less than or about equal to the average particle size.

Claim 9

The composition of claim 1, wherein said ethylene interpolymer is prepared by interpolymerization at reactor pressure and temperature above its respective two-phase transition zone.

Claim 10

The composition of claim 1, wherein the composition is a film.

Claim 11

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations selected from the group consisting of cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium; said ethylene interpolymer having a melt flow value of from about 0.5 to about 25 dg/min and prepared by interpolymerization at reactor pressure and temperature above its respective two-phase transition zone; (b) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of saturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a saturated alkyl group having from 13 to 25 carbon atoms and R 2 is a saturated alkyl group having from 14 to 26 carbon atoms; and (c) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition of unsaturated or mixed unsaturated secondary fatty acid amide of the formula R 3 --CO--NH--R 4 , wherein R 3 is a mono-olefinically unsaturated alkyl group having from 17 to 23 carbon atoms or a saturated alkyl group having from 13 to 25 carbon atoms, R 4 is a mono-olefinically unsaturated alkyl group having from 18 to 24 carbon atoms or a saturated alkyl group having from 14 to 26 carbon atoms, and at least one of said R 3 and R 4 is mono-olefinically unsaturated.

Claim 12

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations selected from the group consisting of cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium; said ethylene interpolymer having a melt flow value of from about 0.5 to about 25 dg/min and prepared by interpolymerization at reactor pressure and temperature above its respective two-phase transition zone; (b) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of saturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a saturated alkyl group having from 13 to 25 carbon atoms and R 2 is a saturated alkyl group having from 14 to 26 carbon atoms; and (c) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition of unsaturated or mixed unsaturated secondary fatty acid amide of the formula R 3 --CO--NH--R 4 , wherein R 3 is a mono-olefinically unsaturated alkyl group having from 17 to 23 carbon atoms or a saturated alkyl group having from 13 to 25 carbon atoms, R 4 is a mono-olefinically unsaturated alkyl group having from 18 to 24 carbon atoms or a saturated alkyl group having from 14 to 26 carbon atoms, and at least one of said R 3 and R 4 is mono-olefinically unsaturated.

Claim 13

The composition of claim 10, wherein said ethylene interpolymer is prepared by interpolymerization at reactor pressure and temperature at least about 26.7 MPa and about 20° C., respectively, above its two-phase transition zone, and wherein said interpolymer has a ratio of adjacent interpolymerized polar monomer groups to the total interpolymerized polar monomer groups less than 0.44.

Claim 14

The composition of claim 10, wherein the amide group of said saturated secondary fatty acid amide of which said R 1 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, and cerotamide.

Claim 15

The composition of claim 10, wherein said R 2 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, and cerotyl.

Claim 16

The composition of claim 10, wherein the amide group of said unsaturated or mixed unsaturated secondary fatty acid of which said R 3 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, cerotamide, oleamide, elaidamide, vaccenamide, and erucamide.

Claim 17

The composition of claim 10, wherein said R 4 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, cerotyl, oleyl, elaidyl, vaccenyl, and erucyl.

Claim 18

The composition of claim 10, further comprising compounded with said interpolymer, finely divided inorganic in an amount of from about 0.025 to about 1.5 percent by weight of the composition, said finely divided inorganic having a surface area of from about 0.7 to about 75 m 2 /g, an oil absorption value of from about 21 to about 175 g oil per 100 g inorganic, and a weight average particle size of from about 0.02 to about 30 microns with at least 60 percent of the particles being less than or about equal to the average particle size.

Claim 19

The composition of claim 16, wherein said finely divided inorganic is selected from the group consisting of: clay, aluminum silicate, diatomaceous earth, silica, talc, limestone, fumed silica, magnesium sulfate, magnesium silicate, alumina trihydrate, magnesium oxide, zinc oxide, and combinations thereof.

Claim 20

The composition of claim 10, wherein the composition is a film.

Claim 21

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations selected from the group consisting of: cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium and combinations thereof; said ethylene interpolymer having a melt flow value of from about 0.5 to about 25 dg/min, a ratio of adjacent interpolymerized polar monomer groups to the total interpolymerized polar monomer groups less than 0.44, and being prepared by interpolymerization at reactor pressure and temperature at least about 26.7 MPa and about 20° C., respectively, above its two-phase transition zone; (b) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of saturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein the amide group of which R 1 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, and cerotamide; and R 2 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, and cerotyl; (c) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of unsaturated or mixed unsaturated secondary fatty acid amide of the formula R 3 --CO--NH--R 4 , wherein the amide group of which R 3 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, cerotamide, oleamide, elaidamide, vaccenamide, and erucamide; R 4 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, cerotyl, oleyl, elaidyl, vaccenyl, and erucyl; and at least one of said R 3 and R 4 is mono-olefinically unsaturated; and (d) compounded with said interpolymer, finely divided inorganic in amount of from about 0.025 to about 1.5 percent by weight of the composition, said finely divided inorganic having a surface area of from about 0.7 to about 75 m 2 /g, an oil absorption value of from about 21 to about 175 g oil per 100 g inorganic, a weight average particle size of from about 0.02 to about 30 microns with at least 60 percent of the particles being less than or about equal to the average particle size and being selected from the group consisting of: clay, aluminum silicate, diatomaceous earth, silica, talc, limestone, fumed silica, magnesium sulfate, magnesium silicate, alumina trihydrate, magnesium oxide, zinc oxide, and combinations thereof.

Claim 22

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations selected from the group consisting of: cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium and combinations thereof; said ethylene interpolymer having a melt flow value of from about 0.5 to about 25 dg/min, a ratio of adjacent interpolymerized polar monomer groups to the total interpolymerized polar monomer groups less than 0.44, and being prepared by interpolymerization at reactor pressure and temperature at least about 26.7 MPa and about 20° C., respectively, above its two-phase transition zone; (b) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of saturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein the amide group of which R 1 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, and cerotamide; and R 2 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, and cerotyl; (c) compounded with said interpolymer, from about 0.025 to about 1 percent, by weight of the composition, of unsaturated or mixed unsaturated secondary fatty acid amide of the formula R 3 --CO--NH--R 4 , wherein the amide group of which R 3 is a part is selected from the group consisting of: lauramide, palmitamide, stearamide, arachidamide, behenamide, lignoceramide, cerotamide, oleamide, elaidamide, vaccenamide, and erucamide; R 4 is selected from the group consisting of: lauryl, palmityl, stearyl, arachidyl, behenyl, lignoceryl, cerotyl, oleyl, elaidyl, vaccenyl, and erucyl; and at least one of said R 3 and R 4 is mono-olefinically unsaturated; and (d) compounded with said interpolymer, finely divided inorganic in amount of from about 0.025 to about 1.5 percent by weight of the composition, said finely divided inorganic having a surface area of from about 0.7 to about 75 m 2 /g, an oil absorption value of from about 21 to about 175 g oil per 100 g inorganic, a weight average particle size of from about 0.02 to about 30 microns with at least 60 percent of the particles being less than or about equal to the average particle size and being selected from the group consisting of: clay, aluminum silicate, diatomaceous earth, silica, talc, limestone, fumed silica, magnesium sulfate, magnesium silicate, alumina trihydrate, magnesium oxide, zinc oxide, and combinations thereof.

Claim 23

The composition of claim 19, wherein the composition is a film.

Claim 24

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations; said ethylene interpolymer having a melt flow value of from about 0.01 to about 50 dg/min; (b) compounded with said interpolymer, from about 0.05 to about 2 percent, by weight of the composition, of unsaturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a mono-olefinically unsaturated alkyl group having from 19 to 23 carbon atoms, and R 2 is a mono-olefinically unsaturated alkyl group having from 20 to 24 carbon atoms.

Claim 25

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups therein are neutralized with metal cations; said ethylene interpolymer having a melt flow value of from about 0.01 to about 50 dg/min; (b) compounded with said interpolymer, from about 0.05 to about 2 percent, by weight of the composition, of unsaturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a mono-olefinically unsaturated alkyl group having from 19 to 23 carbon atoms, and R 2 is a mono-olefinically unsaturated alkyl group having from 20 to 24 carbon atoms.

Claim 26

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups are neutralized with metal cations; said ethylene interpolymer having a melt flow value of from about 0.01 to about 50 dg/min and being prepared by interpolymerization at reactor pressure and temperature above its respective two-phase transition zone; and (b) compounded with said interpolymer, from about 0.05 to about 2 percent, by weight of the composition, of an unsaturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a mono-olefinically unsaturated alkyl group having from 17 to 23 carbon atoms, and R 2 is a mono-olefinically unsaturated alkyl group having from 18 to 24 carbon atoms.

Claim 27

A composition, comprising: (a) ethylene interpolymer selected from the group consisting of: (1) ethylene interpolymers having acrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; (2) ethylene interpolymers having methacrylic acid interpolymerized therein in an amount of from about 2 to about 35 percent by weight of the interpolymer; and (3) ionomers of such ethylene-acrylic acid and ethylene-methacrylic acid interpolymers in which from about 5 to about 95 percent of the carboxyl groups are neutralized with metal cations; said ethylene interpolymer having a melt flow value of from about 0.01 to about 50 dg/min and being prepared by interpolymerization at reactor pressure and temperature above its respective two-phase transition zone; and (b) compounded with said interpolymer, from about 0.05 to about 2 percent, by weight of the composition, of an unsaturated secondary fatty acid amide of the formula R 1 --CO--NH--R 2 , wherein R 1 is a mono-olefinically unsaturated alkyl group having from 17 to 23 carbon atoms, and R 2 is a mono-olefinically unsaturated alkyl group having from 18 to 24 carbon atoms.

Claim 28

The composition of claim 21 or 22 wherein said ethylene interpolymer is prepared by interpolymerization at reactor pressure and temperature at least about 26.7 MPa and about 20° C., respectively, above its two-phase transition zone, and wherein said interpolymer has a ratio of adjacent interpolymerized polar monomer groups to the total interpolymerized polar monomer groups less than 0.44.

Claim 29

The composition of claim 21 or 22 wherein the melt flow value of the ethylene interpolymer is from about 0.5 to about 25 dg/min.

Claim 30

The composition of claim 21 or 22 wherein the ethylene interpolymer has acrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer.

Claim 31

The composition of claim 21 or 22 wherein the ethylene interpolymer has methacrylic acid interpolymerized therein in an amount of from about 5 to about 20 percent by weight of the interpolymer.

Claim 32

The composition of claim 21 or 22 wherein the ethylene interpolymer comprises said ionomer in which said cations are selected from the group consisting of: cations of zinc, sodium, magnesium, potassium, lithium, calcium and barium.

Claim 33

The composition of claim 21 or 22 further comprising compounded with said interpolymer, finely divided inorganic in an amount of from about 0.025 to about 1.5 percent by weight of the composition.

Claim 34

The composition of claim 28, wherein said finely divided inorganic has a surface area of from about 0.7 to about 75 m 2 /g, an oil absorption value of from about 21 to about 175 g oil per 100 g inorganic, and a weight average particle size of from about 0.02 to about 30 microns with at least 60 percent of the particles being less than or about equal to the average particle size.

Claim 35

The composition of any of claims 21 or 22 wherein the composition is a film.

Claim 36

The composition of claim 21 or 22, wherein the amide group of which said R 1 is a part selected from the group consisting of: vaccenamide, and erucamide; and wherein said R 2 is selected from the group consisting of: oleyl, elaidyl, vaccenyl, and erucyl.

Claim 37

The composition of claim 29, wherein said finely divided inorganic is selected from the group consisting of: clay, aluminum silicate, diatomaceous earth, silica, talc, limestone, fumed silica, magnesium sulfate, magnesium silicate, alumina trihydrate, magnesium oxide, zinc oxide, and combinations thereof.