Universal masterbatch

• US 20010049424A1
• Filed: 12/22/2000
• Published: 12/06/2001
• Est. Priority Date: 08/29/1994
• Status: Active Grant

• Current Assignee: Nicole Petiniot, Philippe Rasquin
• Original Assignee: Nicole Petiniot, Philippe Rasquin
• Inventors: Petiniot, Nicole, Rasquin, Philippe
• Granted Patent: US 6,713,545 B2
• Time in Patent Office: Days
• US Class Current: 526/89
• CPC Class Codes: C08J 2453/00 Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
• CPC Class Codes: C08J 3/226 using a polymer as a carrier
• CPC Class Codes: C08K 3/01 characterized by their specific function
• CPC Class Codes: C08L 53/02 of vinyl-aromatic monomers and conjugated dienes

Abstract

A universal masterbatch composition for adding fillers and particularly pigment to polymers, having up to 85%, by weight, of at least one filler, up to 25%, by weight, of at least one viscosity modifier and a remainder quantity of a styrene butadiene block copolymer. The composition further includes up to 5%, by weight, of at least one processing aid and up to 2%, by weight of at least one antioxidant

Claims

1. A masterbatch composition which maintains the mechanical properties of a base thermoplastic comprising:

up to 85%, by weight, of at least one filler,

up to 25%, by weight, of at least one viscosity modifier, said viscosity modifier comprising ethylene bis stearamide, polybutylene, or hot melt acrylate copolymers, and

a remaining quantity, by weight, of a styrene butadiene block copolymer.

2. The composition of

claim 1

further comprising:

a quantity of from 0 to 5%, by weight, of at least one processing aid selected from the group consisting of;

metallic stearates, stearic acid, organic stearates, and fluroelastomers.

3. The composition of

claim 1

wherein the filler is a pigment selected from the group consisting of:

carbon black, titanium dioxide, and ultra marine blue.

4. The composition of

claim 3

wherein the masterbatch composition further comprises:

a quantity of from 0 to 2%, by weight, of at least one antioxidant.

5. The composition of

claim 3

wherein the masterbatch composition further comprises:

a quantity of from about 20 to 60%, by weight, of a black pigment,

a quantity of from about 0 to 5%, by weight, of at least one processing aid,

a quantity of from about 0 to 25%, by weight, of at least one viscosity modifier, and a remaining quantity, by weight, of a styrene butadiene block copolymer.

6. The composition of

claim 5

wherein the masterbatch composition further comprises:

a quantity of from 0 to 15%, by weight, of at least one additive;

selected from the group consisting of ultra violet stabilizer, slip stabilizers, antifog agents, antistatic agents, or process lubricants.

7. The composition of

claim 5

wherein the black pigment is carbon black.

8. The composition of

claim 5

wherein the processing aid is an organic or inorganic stearate, or a metallic stearate such as zinc stearate.

9. The composition of

claim 5

wherein the viscosity modifier is ethylene bis stearamide.

10. The composition of

claim 5

wherein the masterbatch composition further comprises:

about 35%, by weight, of carbon black,

about 0.6%, by weight, zinc stearate or calcium stearate,

about 10%, by weight, ethylene bis stearamide, and

a remainder quantity of about 54.4%, by weight, of styrene butadiene block copolymer.

11. The composition of

claim 3

wherein the masterbatch composition further comprises:

a quantity of from about 20 to 85%, by weight, of a white pigment,

a quantity of from about 0 to 5%, by weight, of at least one processing aid;

a quantity of from about 0 to 25%, by weight of the viscosity modifier selected from the group of polybutylene or ethylene bis stearamide;

a quantity of from about 0 to 2%, by weight of the antioxidant, and

a remainder quantity by weight of styrene butadiene block copolymers.

12. The composition of

claim 11

wherein the masterbatch composition further comprises:

about 60%, by weight of titanium dioxide;

about 0.6%, by weight of zinc stearate;

about 10%, by weight of polybutylene;

about 0.5%, by weight of at least one antioxidant, and

a remainder quantity of about 28.9%, by weight of styrene butadiene block copolymer.

13. The masterbatch composition of

claim 2

wherein the masterbatch composition further comprises:

0 to 20%, by weight of a white pigment,

0 to 30%, by weight of a ultramarine blue pigment,

0 to 50%, by weight of the filler selected from the group consisting of talc, silica, and calcium carbonate,

0 to 5%, by weight of a processing aid selected from the group consisting of calcium stearates or zinc stearates,

0 to 25%, by weight of a ethylene methylmethacrylate, and

a remainder quantity of styrene butadiene block copolymers.

14. The composition of

claim 13

wherein the masterbatch composition further comprises:

about 2.5%, by weight of titanium dioxide,

about 26%, by weight, of ultramarine blue,

about 35%, by weight, of calcium carbonate,

about 3%, by weight, of calcium stearate,

about 6%, by weight, of ethylene methyl acrylate copolymer; and

a remainder quantity of about 27.5% by weight of styrene butadiene block copolymer.

15. A plastic composition comprising:

0.5 to 30% by weight of a masterbatch composition and a remainder quantity of thermoplastic resin, said masterbatch composition further comprising;

up to 85%, by weight, of at least one filler,

up to 25%, by weight, of at least one viscosity modifier, and a remainder quantity of styrene butadiene block copolymer.

16. The plastic composition of

claim 15

wherein the masterbatch further comprises up to 70% by weight of at least one filler.

17. The plastic composition of

claim 15

wherein the masterbatch composition further comprises 0-5%, by weight, of at least one processing aid selected from the group consisting of:

metallic stearates, organic stearates, and fluroelastomers.

18. The plastic composition of

claim 15

wherein the masterbatch composition further comprises 0-2%, by weight, of at least one antioxidant.

19. The plastic composition of

claim 15

wherein the viscosity modifier comprises ethylene bis stearamide, polybutylene or hot melt acrylate copolymers.

20. The plastic composition of

claim 15

wherein the filler in the masterbatch comprises at least one pigment selected from the group consisting of carbon black, titanium dioxide, and ultramarine blue.