US4250064A — Plastic formulation reinforced with organic fibers

Claim 1

Independent Claim 130 words

A plastic formulation suitable for the manufacture of tile and the like, said formulation being essentially free of asbestos and comprising an intimate mixture of: (a) plasticized, normally solid resin selected from the group consisting of vinyl chloride/vinyl C 2 -C 4 alkanoate copolymer, vinylidine chloride/vinyl chloride copolymer, vinyl chloride/propylene copolymer, hydrocarbon resins, chlorinated polyethylene and mixtures thereof; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having specific gravity between about 1 and about 1.5. (c) between about 20 and 50 wt% based on total formulation of particulate filler of a particle size less than 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 2

Dependent Claim 130 words

A plastic formulation suitable for the manufacture of tile and the like, said formulation being essentially free of asbestos and comprising an intimate mixture of: (a) plasticized, normally solid resin selected from the group consisting of vinyl chloride/vinyl C 2 -C 4 alkanoate copolymer, vinylidine chloride/vinyl chloride copolymer, vinyl chloride/propylene copolymer, hydrocarbon resins, chlorinated polyethylene and mixtures thereof; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having specific gravity between about 1 and about 1.5. (c) between about 20 and 50 wt% based on total formulation of particulate filler of a particle size less than 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 3

Dependent Claim 38 words

A plastic formulation according to claim 1 in which the plasticized normally solid resin comprises vinyl chloride/vinyl acetate copolymer and the organic fibrous filler is present in amounts between about 0.5% and about 10 wt% of the formulation.

Claim 4

Dependent Claim 70 words

A plastic formulation according to claim 1 in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than 10 microns in size and which contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 5

Dependent Claim 21 words

A plastic formulation according to claim 1 which includes between about 0.5% and about 2 wt% of a thermoplastic butadiene/acrylonitrile rubber.

Claim 6

Dependent Claim 22 words

A plastic formulation according to claim 1 wherein the plasticized normally solid resin comprises less than about 20 wt% of said formulation.

Claim 7

Dependent Claim 25 words

A plastic formulation according to claim 1 in which the fibers of the fibrous filler average between about 0.01 inch and about 0.15 inch long.

Claim 8

Dependent Claim 20 words

A plastic formulation according to claim 1 in which the fibrous filler consists essentially of polyester fibers or cellulosic fibers.

Claim 9

Dependent Claim 34 words

A plastic formulation according to claim 1 in which the normally solid resin comprises chlorinated polyethylene and in which plasticizer is present in amounts between about 15 and about 40 wt% based on resin.

Claim 10

Dependent Claim 34 words

A plastic formulation according to claim 8 in which the chlorinated polyethylene contains at least about 30 wt% chlorine and has a molten viscosity between about 10,000 and about 30,000 poises at 190° C.

Claim 11

Dependent Claim 64 words

A plastic formulation according to claim 1 in which between about 4% and about 10 wt% based on total formulation of a vinyl chloride/vinyl acetate/ethylene terpolymer resin is also present, said terpolymer resin comprising between about 80 and about 90 wt% vinyl chloride units, from about 7 to about 14 wt% vinyl acetate units and from about 1 to about 3 wt% ethylene units.

Claim 12

Dependent Claim 47 words

A plastic formulation according to claim 2 in which said filler of a particle size less than about 20 microns and said filler of particle size between about 20 and about 200 mesh comprises calcium carbonate and the organic fibrous filler is polyester fiber or cellulosic fiber.

Claim 13

Dependent Claim 57 words

A plastic formulation according to claim 11 in which the vinyl chloride/vinyl acetate copolymer comprises between about 80 and about 95 wt% vinyl chloride units and between about 5 and about 20 wt% vinyl acetate units and in which plasticizer is present in amounts between about 15 and about 40 wt% based on vinyl chloride/vinyl acetate copolymer.

Claim 14

Dependent Claim 85 words

A plastic formulation according to claim 12 in which the fibrous filler is present in amounts between about 1 and about 4 wt% of the formulation, the plasticizer and resin is present in a total amount between about 10 and about 20 wt% of the formulation and the formulation contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 15

Dependent Claim 123 words

Plastic tile essentially free of asbestos and manufactured from a plastic formulation comprising an intimate mixture of: (a) plasticized, normally solid resin selected from the group consisting of vinyl chloride/vinyl C 2 -C 4 alkanoate copolymer, vinylidene chloride/vinyl chloride copolymer, vinyl chloride/propylene copolymer, chlorinated polyethylene and mixtures thereof; (b) an organic fibrous filler not easily dispersed in said formulation, said orgaic filler having a specific gravity between about 1 and about 1.5. (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 16

Dependent Claim 123 words

Plastic tile essentially free of asbestos and manufactured from a plastic formulation comprising an intimate mixture of: (a) plasticized, normally solid resin selected from the group consisting of vinyl chloride/vinyl C 2 -C 4 alkanoate copolymer, vinylidene chloride/vinyl chloride copolymer, vinyl chloride/propylene copolymer, chlorinated polyethylene and mixtures thereof; (b) an organic fibrous filler not easily dispersed in said formulation, said orgaic filler having a specific gravity between about 1 and about 1.5. (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 17

Dependent Claim 37 words

Plastic tile according to claim 14 in which the plasticized normally solid resin comprises vinyl chloride/vinyl acetate copolymer and the organic fibrous filler is present in amounts between about 0.5% and about 10 wt% of the formulation.

Claim 18

Dependent Claim 68 words

Plastic tile according to claim 15 in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than 10 microns in size and contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 19

Dependent Claim 21 words

Plastic tile according to claim 15 which includes between about 0.5% and about 2 wt% of a thermoplastic butadiene acrylonitrile rubber.

Claim 20

Dependent Claim 21 words

Plastic tile according to claim 15 wherein the plasticized normally solid resin comprises less than about 20 wt% of said formulation.

Claim 21

Dependent Claim 24 words

Plastic tile according to claim 15 in which the fibers of the fibrous filler average between about 0.01 inch and about 0.15 inch long.

Claim 22

Dependent Claim 19 words

Plastic tile according to claim 15 in which the fibrous filler consists essentially of polyester fibers or cellulosic fibers.

Claim 23

Dependent Claim 33 words

Plastic tile according to claim 15 in which the normally solid resin comprises chlorinated polyethylene and in which plasticizer is present in amounts between about 15 and about 40 wt% based on resin.

Claim 24

Dependent Claim 33 words

Plastic tile according to claim 21 in which the chlorinated polyethylene contains at least about 30 wt% chlorine and has a molten viscosity between about 10,000 and about 30,000 poises at 190° C.

Claim 25

Dependent Claim 63 words

Plastic tile according to claim 15 in which between about 4% and about 10 wt% based on total formulation of a vinyl chloride/vinyl acetate/ethylene terpolymer resin is also present, said terpolymer resin comprising between about 80 and about 90 wt% vinyl chloride units, from about 4 to about 14 wt% vinyl acetate units and from about 1 to about 3 wt% ethylene units.

Claim 26

Dependent Claim 44 words

Plastic tile according to claim 15 in which said filler of particle size less than 20 microns and said filler of particle size between about 20 and about 200 mesh comprises calcium carbonate and the organic fibrous filler is polyester fiber or cellulosic fiber.

Claim 27

Dependent Claim 56 words

Plastic tile according to claim 24 in which the vinyl chloride/vinyl acetate copolymer comprises between about 80 and about 95 wt% vinyl chloride units and between about 5% and about 20 wt% vinyl acetate units and in which plasticizer is present in amounts between about 15 and about 40 wt% based on vinyl chloride/vinyl acetate copolymer.

Claim 28

Dependent Claim 84 words

Plastic tile according to claim 25 in which the fibrous filler is present in amounts between about 1 and about 4 wt% of the formulation, the plasticizer and resin is present in a total amount between about 10 and about 20 wt% of the formulation and the formulation contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 29

Dependent Claim 115 words

A plastic formulation suitable for the manufacture of tile and the like, said formulation being essentially free of asbestos and comprising an intimate mixture of: (a) plasticized, normally solid resin comprising a mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having a specific gravity between about 1 and about 1.5. (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 30

Dependent Claim 115 words

A plastic formulation suitable for the manufacture of tile and the like, said formulation being essentially free of asbestos and comprising an intimate mixture of: (a) plasticized, normally solid resin comprising a mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having a specific gravity between about 1 and about 1.5. (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 31

Dependent Claim 29 words

A plastic formulation according to claim 27 in which the ratio of vinyl chloride/vinyl acetate to chlorinated polyethylene is between about 5 to 1 and about 2 to 1.

Claim 32

Dependent Claim 62 words

A plastic formulation according to claim 28 in which the vinyl chloride/vinyl acetate comprises between about 80 and about 95 wt% vinyl chloride units and between about 5 and about 20 wt% vinyl acetate units, and in which the plasticizer is present in amounts between about 15 and about 40 wt% based on the mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene.

Claim 33

Dependent Claim 46 words

A plastic formulation according to claim 29 in which the filler of particle size less than about 20 microns and the filler of particle size between about 20 and about 200 mesh comprise calcium carbonate and the organic fibrous filler is polyester fiber or cellulosic fiber.

Claim 34

Dependent Claim 42 words

A plastic formulation according to claim 30 in which the organic fibrous filler is present in amounts between about 0.5% and about 10 wt% fo the formulation, and in which the fibers average between about 0.01 inch and about 0.15 inch long.

Claim 35

Dependent Claim 71 words

A plastic formulation according to claim 31 in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than about 10 microns in size and which contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 36

Dependent Claim 33 words

A plastic formulation according to claim 32 in which the chlorinated polyethylene contains at least about 30 wt% chlorine and has a molten viscosity between about 10,000 and 30,000 poises at 190° C.

Claim 37

Dependent Claim 80 words

A plastic formulation according to claim 33 in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than about 10 microns in size, between about 0.5 and about 10 wt% of the formulation consists essentially of polyester or cellulosic fiber averaging between about 0.01 inch and about 0.15 inch long and the formulation is essentially free of asbestos and includes less than about 20% by weight of resin plus plasticizer.

Claim 38

Dependent Claim 21 words

A plastic formulation according to claim 34 which includes between about 0.5 and about 2 wt% of a thermoplastic butadiene/acrylonitrile rubber.

Claim 39

Dependent Claim 31 words

A plastic formulation according to claim 35 in which the total amount of resin plus plasticizer in the formulation is between about 10% and about 20% by weight of the formulation.

Claim 40

Dependent Claim 107 words

Plastic tile essentially free of asbestos and manufactured from a plastic formulation comprising an intimate mixture of: (a) plasticized, normally solid resin comprising a mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having a specific gravity between about 1 and about 1.5; (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 41

Dependent Claim 107 words

Plastic tile essentially free of asbestos and manufactured from a plastic formulation comprising an intimate mixture of: (a) plasticized, normally solid resin comprising a mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene; (b) an organic fibrous filler not easily dispersed in said formulation, said organic filler having a specific gravity between about 1 and about 1.5; (c) between about 20 and about 50 wt% based on total formulation of particulate filler of a particle size less than about 20 microns; and (d) between about 20 and about 60 wt% based on total formulation of particulate filler of a particle size between about 20 and about 200 mesh.

Claim 42

Dependent Claim 28 words

Plastic tile according to claim 37 in which the ratio of vinyl chloride/vinyl acetate to chlorinated polyethylene is between about 5 to 1 and about 2 to 1.

Claim 43

Dependent Claim 61 words

Plastic tile according to claim 38 in which the vinyl chloride/vinyl acetate comprises between about 80 and about 95 wt% vinyl chloride units and between about 5 and about 20 wt% vinyl acetate units, and in which the plasticizer is present in amounts between about 15 and about 40 wt% based on the mixture of vinyl chloride/vinyl acetate and chlorinated polyethylene.

Claim 44

Dependent Claim 45 words

Plastic tile according to claim 39 in which the filler of a particle size less than about 20 microns and the filler of between about 20 and about 200 mesh size comprise calcium carbonate and the organic fibrous filler is polyester fiber or cellulosic fiber.

Claim 45

Dependent Claim 41 words

Plastic tile according to claim 40 in which the organic fibrous filler is present in amounts between about 0.5% and about 10 wt% fo the formulation, and in which the fibers average between about 0.01 inch and about 0.15 inch long.

Claim 46

Dependent Claim 69 words

Plastic tile according to claim 41 in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than about 10 microns in size and contains no more than about 1 wt% particulate filler of a particle size larger than 20 mesh and no more than about 15 wt% particulate filler of a particle size between 20 microns and 200 mesh.

Claim 47

Dependent Claim 32 words

Plastic tile according to claim 42 in which the chlorinated polyethylene contains at least about 30 wt% chlorine and has a molten viscosity between about 10,000 and 30,000 poises at 190° C.

Claim 48

Dependent Claim 78 words

Plastic tile according to claim 43, in which between about 20 and about 50 wt% of the formulation consists essentially of calcium carbonate particles of less than about 10 microns in size, between about 0.5 and about 10 wt% of the formulation consists essentially of polyester or cellulosic fiber averaging between about 0.01 inch and about 0.15 inch-long and the formulation being essentially free of asbestos and includes less than about 20% by weight of resin plus plasticizer.

Claim 49

Dependent Claim 21 words

A plastic tile according to claim 44 which includes between about 0.5% and about 2 wt% of a thermoplastic butadiene/acrylonitrile rubber.

Claim 50

Dependent Claim 31 words

A plastic tile according to claim 45 in which the total amount of resin plus plasticizer in the formulation is between about 10% and about 20% by weight of the formulation.

Claim 51

Dependent Claim 28 words

A plastic formulation according to claim 1 wherein the plasticized, normally solid resin is present in amounts between about 10 and about 30 wt% based on total formulation.

Claim 52

Dependent Claim 59 words

A plastic formulation according to claim 7 in which the plasticized normally solid resin is present in amounts between about 10 and about 30 wt% based on total formulation, the organic fibrous filler is present in amounts between about 0.5% and about 10 wt% based on total formulation and the plasticized, normally solid resin comprises vinyl chloride/vinyl acetate copolymer.

Claim 53

Dependent Claim 26 words

Plastic tile according to claim 20 wherein the plasticized, normally solid resin is present in amounts between about 10 and about 30 wt% of the tile.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1984-02-10	1984-08-11	1985-02-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1988-02-10	1988-08-11	1989-02-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1992-02-10	1992-08-11	1993-02-10	$7700.00	Window Closed / Lapsed

Plastic formulation reinforced with organic fibers

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