# US 7,612,145 B2 · Composite material containing non-functional aromatic end group-containing polymer

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- Number: US 7,612,145 B2
- Document ID: US7612145B2
- Status: Granted
- Kind: B2
- Application number: 11/901,394
- Filed: 2007-09-17
- Published: 2008-04-03
- Granted: 2009-11-03
- Earliest claimed: 2006-09-28
- Assignees: Rohm and Haas Company
- Inventors: Bahar Azimipour; Chuen-Shyong Chou; Edward E. LaFleur; Nazir Ahmed Memon
- Web page: https://patentgrep.com/patent/US7612145B2

## CPC

- C08J 3/005: {Processes for mixing polymers}
- C08L 101/00: Compositions of unspecified macromolecular compounds
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A composite material containing a thermoplastic material and a non-functional aromatic end group-containing polymer is disclosed. Also disclosed are methods of making and use the composite materials.

## Claims

### Claim 1

A composite material comprising:
a thermoplastic material; and,
a liquid rubber;
wherein the liquid rubber has a glass transition temperature of less than 25° C., a weight average molecular weight of ≧1,069 g/mol and comprises polymer chains that have one or more non functional aromatic terminal end-group; wherein the thermoplastic material is a thermoplastic polymer and wherein the liquid rubber is miscible with the thermoplastic material in a liquid state and immiscible with the thermoplastic material in a solid state.

### Claim 2 (depends on 1)

The composite material of claim 1, wherein the composite material comprises 5 to 80 wt % liquid rubber.

### Claim 3 (depends on 1)

The composite material of claim 1, further comprising an additive selected from an antioxidant, a filler, a pigment, a lubricant, a plasticizer, a UV stabilizer, a heat stabilizer, a flame retardant, an antistatic agent and a combination thereof.

### Claim 4 (depends on 1)

A product comprising the composite material of claim 1, wherein the product is selected from packaging materials, auto parts, food trays, cell phone housings, and housings for electronic equipment.

### Claim 5

A method far preparing a composite material, comprising:
(a) providing a thermoplastic material;
(b) providing a liquid rubber; and,
(c) combining the liquid rubber with the thermoplastic material;
wherein the liquid rubber has a glass transition temperature of less than 25° C., a weight average molecular weight of ≧1,069 g/mol and comprises polymer chains that have one or more non functional aromatic terminal end-group; wherein the liquid rubber is miscible in the thermoplastic material in a liquid state and immiscible in the thermoplastic material in a solid state.

### Claim 6 (depends on 5)

The method of claim 5, further comprising processing the composite material by at least one of extruding, blow molding, injection molding, calendaring, thermoforming and pultruding.

### Claim 7 (depends on 5)

The method of claim 5, wherein (a) providing a thermoplastic material, comprises providing a liquid monomer; wherein the method further comprises (d) transforming the thermoplastic material into a solid state by polymerizing the liquid monomer; and wherein the liquid rubber is miscible in the liquid monomer and immiscible in the thermoplastic material in the solid state.

### Claim 8 (depends on 5)

The method of claim 5, wherein (a) providing a thermoplastic material, comprises providing a liquid oligomer; wherein the method further comprises (d) transforming the thermoplastic material into a solid state by polymerizing the liquid oligomer; and wherein the liquid rubber is miscible in the liquid oligomer and immiscible in the thermoplastic material in the solid state.

### Claim 9 (depends on 5)

The method of claim 5, wherein (a) providing a thermoplastic material, comprises providing a molten thermoplastic polymer; wherein the method further comprises (d) transforming the thermoplastic material into a solid state by cooling the molten thermoplastic polymer; and wherein the liquid rubber is miscible in the molten thermoplastic polymer and immiscible in the thermoplastic material in the solid state.

### Claim 10

A method for improving toughness of a thermoplastic material, comprising:
providing a combination of a thermoplastic material and a liquid rubber;
wherein the liquid rubber has a glass transition temperature of less than 25° C., a weight average molecular weight of ≧1,069 g/mol and comprises polymer chains that have one or more non functional aromatic terminal end-group; wherein the liquid rubber is miscible in the thermoplastic material in a liquid state and immiscible in the thermoplastic material in a solid state and wherein the toughness of the combined thermoplastic material and liquid rubber is greater than the toughness of the thermoplastic material in the absence of the liquid rubber.

### Claim 11 (depends on 1)

The composite of claim 1 wherein the polymer chains comprise one or more of C1 to C10 alkyl (meth)acrylates; (meth)acrylic acids; (meth)acrylonitriles; meth)acrylamides; 2-perfluoroalkylethyl (meth)acrylates; 2-(perhaloalkyl)ethyl (meth)acrylates; alkyl(ethyleneoxy)n(meth)acrylates; amino(meth)acrylates; aryl(meth)acrylates; vinyl benzoic acids; vinyl esters; vinyl ethers; vinyl halides; vinyl phosphoric acids; vinyl sulfonic acids; vinylic anhydrides; vinylidene halides; fluorophenyl(meth)acrylates; vinyltrimethylsilanes; C2 to C3 hydroxyalkyl(meth)acrylates, glycidyl(meth)acrylates, alkoxysilanes; and combinations thereof.

### Claim 12 (depends on 5)

The method of claim 5 wherein the polymer chains comprise one or more of C1 to C20 alkyl(meth)acrylates; (meth)acrylic acids; (meth)acrylonitriles; (meth)acrylamides; 2-perfluoroalkylethyl(meth)acrylates; 2-(perhaloalkyl)ethyl(meth)acrylates; alkyl(ethyleneoxy)n(meth)acrylates; amino(meth)acrylates; aryl(meth)acrylates; vinyl benzoic acids; vinyl esters; vinyl ethers; vinyl halides; vinyl phosphoric acids; vinyl sulfonic acids; vinylic anhydrides; vinylidene halides; fluorophenyl(meth)acrylates; vinyltrimethylsilanes; C2 to C3 hydroxyalkyl(meth)acrylates, glycidyl(meth)acrylates, alkoxysilanes; and combinations thereof.

### Claim 13 (depends on 10)

The method of claim 10 wherein the polymer chains comprise one or more of C1 to C20 alkyl(meth)acrylates; (meth)acrylic acids; (meth)acrylonitriles; (meth)acrylamides; 2-perfluoroalkylethyl(meth)acrylates; 2-(perhaloalkyl)ethyl(meth)acrylates; alkyl(ethyleneoxy)n(meth)acrylates; amino(meth)acrylates; aryl(meth)acrylates; vinyl benzoic acids; vinyl esters; vinyl ethers; vinyl halides; vinyl phosphoric acids; vinyl sulfonic acids; vinylic anhydrides; vinylidene halides; fluorophenyl(meth)acrylates; vinyltrimethylsilanes; C2 to C3 hydroxyalkyl(meth)acrylates, glycidyl(meth)acrylates, alkoxysilanes; and combinations thereof.