Polyvinyl chloride composition

Claim 2

The composition of claim 2 comprising about 8 parts of said plasticizer, about 12 parts of said impact-modifier, about 1.8 parts of said processing aid, about 1.5 parts of said lubricant, about one part of said stabilizer, about 5.5 to 6.5 parts of said stabilizer booster, and about 2.5 to 3.5 parts of pigment.

Claim 3

The composition of claim 3, wherein said plasticizer is a phthalate plasticizer, said processing aid is an acrylic-type processing aid, said lubricant is at least one lubricant selected from the group consisting of glycerides, citrates and hydrogenaged medium and long chain carboxylic acids, said polyvinyl chloride stabilizer is at least one metal stearate stabilizer, and said stabilizer booster containing polyvinyl alcohol contains at least one compound selected from the group consisting of phosphites, epoxidized oils and polyvinyl alcohol.

Claim 4

The composition of claim 4 containing as the metal stearate stabilizers, calcium stearate, stannous stearate, and zinc stearate; and containing as the stabilizer booster, epoxidized soybean oil, mixed di-and-tri-nonylphenyl phosphite, and polyvinyl alcohol.

Claim 5

The composition of claim 2, wherein said plasticizer is a phthalate plasticizer, said processing aid is an acrylic-type processing aid, said lubricant is at least one lubricant selected from the group consisting of glycerides, citrates and hydrogenated medium and long chain carboxylic acids, said polyvinyl chloride stabilizer is at least one metal stearate stabilizer, and said stabilizer booster containing polyvinyl alcohol contains at least one compound selected from the group consisting of phosphites, epoxidized oils and polyvinyl alcohol.

Claim 6

The composition of claim 6 containing as the metal stearate stabilizers, calcium stearate, stannous stearate, and zinc stearate; and containing as the stabilizer booster, epoxidized soybean oil, mixed di-and-tri-nonylphenyl phosphite, and polyvinyl alcohol.

Claim 7

The composition of claim 2, wherein said polyvinyl chloride has a number average molecular weight of between about 20,000 and 23,000.

Claim 8

The composition of claim 5, wherein said polyvinyl chloride has a number average molecular weight of between about 20,000 and 23,000.

Claim 9

A polyvinyl chloride composition which is a shape-retaining solid at ambient temperature consisting essentially of 100 parts by weight of polyvinyl chloride having a number average molecular weight of about 20,000 to 23,000, about 7.5 to 8.5 parts of a phthalate plasticizer, about 10 to 14 parts of an impact-modifier selected from the group consisting of methylmethacrylate-butadiene-styrene polymer and an acrylonitrile-butadiene-styrene polymer, about 1 to 1.5 parts of a blend of oleofinic monoglyceride with hydrogenated olein as a lubricant and about 0.25 to 0.35 part of tri-stearyl citrate lubricant, about 1.5 to 2.1 parts of an acrylic-type processing aid, about 0.24 to 0.3 part of calcium stearate, about 0.37 to 0.43 part of stannous stearate and about 0.28 to 0.34 part of zinc stearate as the stabilizers, about 4 to 6 parts of epoxidized soybean oil, about 1.25 to 1.75 parts of mixed di- and tri-nonylphenyl phosphite, and about 0.05 to 0.08 part of polyvinyl alcohol, as the stabilizer boosters, and about 2.5 to 3.5 parts of pigments.

Claim 10

The composition of claim 10, consisting essentially of 100 parts by weight of polyvinyl chloride having a number average molecular weight of about 20,000 to 23,000, about 8 parts of a di-2-ethylhexyl phthalate, about 12 parts of methylmethacrylate-butadiene-styrene polymer impact modifier, about 1 1/4 parts of a blend of oleofinic monoglyceride with hydrogenated olein as a lubricant and about 0.3 part of tri-stearyl citrate lubricant, about 1.8 parts of an acrylic-type processing aid, about 2.7 parts of calcium stearate, about 0.4 part of stannous stearate and about 0.31 part of zinc stearate as the stabilizers, about 5 parts of epoxidized soybean oil, about 1.5 parts of mixed di- and tri-nonylphenyl phosphite, and about 0.0675 part of polyvinyl alcohol, as the stabilizer boosters, and about 2.5 to 3.5 parts of pigments.

Claim 11

A polyvinyl chloride composition which is formable at temperatures above about 129*-130*F and is a shape-retaining solid at ambient temperatures and which is capable of forming a plastic sheet having the following properties a tensile strength at yield of between 2,000 and 10,000 psi, an elongation at yield of between 3 and 30%, a flexural strength of between 3,000 and 14,000 psi, a flexural modulus of between about 0.5 X 105 and 7 X 105 psi, a notched Izod of between 0.3 and 30 foot pounds per inch, a Rockwell hardness of between 15 on the R scale and 55 on the D scale, a Vicat softening point of between 60*C and 80*C, comprising 100 parts by weight of polyvinyl chloride, about 7.5 to 8.5 parts of a polyvinyl chloride plasticizer, about 10 to 14 parts of an impact-modifier selected from the group consisting of methylmethacrylate-butadiene-styrene polymer and an acrylonitrile-butadiene-styrene polymer, about 1.5 to 2.1 parts of a polyvinyl chloride processing aid, about 1 1/4 to 2 parts of at least one polyvinyl chloride lubricant, at least one polyvinyl chloride stabilizer, and at least one polyvinyl chloride stabilizer booster in an amount between about 6 and 9 parts of said stabilizer and stabilizer booster.

Claim 12

The composition of claim 12 which also contains up to about 5% of pigments and other polyvinyl adjuvants, and an amount between about 6 and 7.5 parts of said stabilizer and stabilizer booster.

Claim 13

The composition of claim 13 comprising about 8 parts of said plasticizer, about 12 parts of said impact-modifier, about 1.8 parts of said processing aid, about 1.5 parts of said lubricant, about one part of said stabilizer, about 5.5 to 6.5 parts of said stabilizer booster, and about 2.5 to 3.5 parts of pigment.

Claim 14

The composition of claim 14, wherein said plasticizer is a phthalate plasticizer, said processing aid is an acrylic-type processing aid, said lubricant is at least one lubricant selected from the group consisting of glycerides, citrAtes and hydrogenated medium and long chain carboxylic acids, said polyvinyl chloride stabilizer is at least one metal stearate stabilizer, and said stabilizer booster is at least one compound selected from the group consisting of phosphites, epoxidized oils and polyvinyl alcohol.

Claim 15

The composition of claim 15 containing as the metal stearate stabilizers, calcium stearate, stannous stearate, and zinc stearate; and containing as the stabilizer booster, epoxidized soybean oil, mixed di-and-tri-nonylphenyl phosphite, and polyvinyl alcohol.

Claim 16

The composition of claim 13, wherein said plasticizer is a phthalate plasticizer, said processing aid is an acrylic-type processing aid, said lubricant is at least one lubricant selected from the group consisting of glycerides, citrates and hydrogenated medium and long chain carboxylic acids, said polyvinyl chloride stabilizer is at least one metal stearate stabilizer, and said stabilizer booster is at least one compound selected from the group consisting of phosphites, epoxidized oils and polyvinyl alcohol.

Claim 17

The composition of claim 17 containing as the metal stearate stabilizers, calcium stearate, stannous stearate, and zinc stearate; and containing as the stabilizer booster, epoxidized soybean oil, mixed di-and-tri-nonyphenyl phosphite, and polyvinyl alcohol.

Claim 18

The composition of claim 18, wherein said polyvinyl chloride has a number average molecular weight of between about 20,000 and 23,000.

Claim 19

The composition of claim 12, wherein said polyvinyl chloride has a number average molecular weight of between about 20,000 and 23,000.