# US 2014/0194580 A1 · Blends of polysulfones and polyphenylene sulfide resins

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- Number: US 2014/0194580 A1
- Document ID: US20140194580A1
- Status: Published application
- Kind: A1
- Application number: 13/791,673
- Filed: 2013-03-08
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Assignees: Sabic Innovative Plastics IP B.V.
- Applicants: Sabic Innovative Plastics IP B.V.
- Inventors: Hariharan Ramalingam; Kapil Sheth
- Web page: https://patentgrep.com/patent/US20140194580A1

## CPC

- C08L 63/04: Epoxynovolacs
- C08G 73/1046: {Polyimides containing oxygen in the form of ether bonds in the main chain}
- C08L 63/00: Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L 81/04: Polysulfides
- H01B 3/306: {Polyimides or polyesterimides}
- H01B 3/307: {Other macromolecular compounds}
- H01B 3/40: epoxy resins
- C08L 79/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})

## Abstract

Compositions including a blend of a) a polysulfone (PSU); b) a polyphenylene sulfide (PPS); and, c) a polyetherimide and epoxy. The polyetherimide and epoxy can be present in an amount effective to act as a compatibilizer for the polysulfone (PSU) and polyphenylene sulfide (PPS). Various embodiments relate to a method of compatibilizing a blend of polysulfone (PSU) and polyphenylene sulfide (PPS). The method can include a) melt mixing a polysulfone (PSU) and a polyetherimide; and b) melt mixing a polyphenylene sulfide (PPS) and an epoxy. Step a) and b) can be carried out by one of sequential mixing and simultaneous mixing.

## Claims

### Claim 1

A composition comprising a blend of:
a) a polysulfone (PSU);
b) a polyphenylene sulfide (PPS); and,
c) a polyetherimide and epoxy, wherein the polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polysulfone (PSU) and polyphenylene sulfide (PPS).

### Claim 2 (depends on 1)

The composition of claim 1, wherein the composition possesses a tensile strength greater than 70 Mpa, an impact strength of at least 35 J/m, and an elongation at break of at least 105%.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the epoxy is an epoxy cresol novolac resin.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the polyphenylene sulfide (PPS) is a linear poly(phenylene) sulfide.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the morphology of the composition is fine, well-dispersed domains of polysulfone (PSU) and polyphenylene sulfide (PPS).

### Claim 6 (depends on 1)

The composition of claim 1, wherein the polyetherimide is present in the range of 2.5-30 wt %, and the epoxy is in the range of 0.5-1.5 wt %.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the composition exhibits a heat distortion temperature H DT) of at least 90° C.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the polysulfone (PSU) is present in the range of 22.5-67.5 wt % and the polyphenylene sulfide (PPS) is present in the range of 25-75 wt %.

### Claim 9 (depends on 1)

An extrudate comprising the composition of claim 1.

### Claim 10 (depends on 1)

A molded product comprising the composition of claim 1.

### Claim at position 11

11-20. (canceled)