Browse Prior Art Database

Property Improvements of Unsaturated Polyester Resins with Low Molecular Weight PPOÒ Resin

IP.com Disclosure Number: IPCOM000005684D
Publication Date: 2001-Oct-25

Publishing Venue

The IP.com Prior Art Database

Abstract

PPO SA120 resin is a new low molecular weight (Mn »2500) polyphenylene-ether (PPE) resin recently commercialized by GE Plastics as a polymer additive. In addition to having the well-known properties inherent to PPE, this new resin has an excellent thermal performance--glass transition temperature (Tg) of 165°C combined with a characteristic feature of improved processability. PPO 855A resin is a new functionalized PPE resin designed for UPR systems. The functionalized end groups lead to better reactivity of PPE with the resin system.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 27% of the total text.

Page 1 of 22

g GE Plastics

Introduction

®

© 2001. General Electrical Company

PPO ® is registered Trademark(s) of General Electric Company

[This page contains 1 picture or other non-text object]

Page 2 of 22

g GE Plastics PPO

® resin History

• Polyphenylene Ether (PPO ® resin) Discovered By GE in 1956 (A. Hay, GE Corporate R&D, Schenectady, NY)

• Commercial Process Defined for 2,6-Xylenol in 1960
• Pilot scale PPO
® resin Production in 1964
• NORYL
® resin (PPO® resin/HIPS) Commercialized by mid-1960's
• NORYL GTX
® resin (PPO® resin/Nylon) Introduced in the 1980's

PPO ® resin: Large Part of GE's Past…And Our Future

Page 3 of 22

g GE Plastics

Polymerization

H

O

OH

OH

n

R

R

O

OH

O

Cu/Amine

O2

O

O

n

H

O

n

H

O

H

n

R=H. Alkyl

O

n

H

PPE resin is prepared by oxidative polymerization of 2,6-dimethylphenol using a copper catalyst. This reaction yields a low molecular weight polymer and tetramethyldiphenoquinone (TMDQ). i The TMDQ formed during polymerization is incorporated into the polymer through redistribution, ii producing polymer chains of listed structures

i Hay, A.S. Blanchard, H.S., Endres, G.F. Eustance, J.W. J. Am. Chem. Soc. 81, 6335 (1959).

ii White, D. M. J. Appld. Poly. Sci. Poly. Chem. Ed. 19, 1008 (1979); U.S. Patetn no. 4,140,675 (Feb 20, 1979), D. M. White (to General Electric Co.)

Page 4 of 22

g GE Plastics

Properties

How Does PPO ® resin ?

• Heat (Tg)
• Electrical Properties (Dk, Df)
• Toughness
• Eco-FR
• Low Moisture Absorption
• Dimensional Stability
• Shrinkage Control
• Resistance To Acids & Bases

Polymer System Turbocharger

Page 5 of 22

g GE Plastics

Applications

Your Polymer System

+

Adhesives & Sealants

Electrical/Electronics

Composites

Coatings

Others

Thermosets
Epoxies
Unsaturated Polyesters
Cyanate Esters
Others
Elastomers
SBC
SBR
Others
Thermoplastics

Turbocharge Your Formulations & Grow Your Business

Page 6 of 22

g GE Plastics

The Grades

Standard PPO ® resin Grades

1) PPO ®803 / PPO ® 640, IV = 0.40 dl/g
2) PPO
®800 / PPO ® 646, IV = 0.46 dl/g
3) PPO
®805, IV = 0.57 dl/g
4) Concentrates: 6390C & 6370C

Specialty PPO ® resin Grades

1) PPO ® SA120, IV = 0.12 dl/g, OH = 425 m mol/g (formerly PPO ®857)

2) PPO ® SA123, IV = 0.12 dl/g, Acid grafted low IV
3) PPO
® SA125, IV = 0.12 dl/g, Capped with Reactive unsaturated group
4) PPO ® SA407, IV = 0.40 dl/g, Capped (855AResin)
5) PPO
®6130, IV = 1.50 dl/g, Gas sep. grade, ultra-high IV

Non-bold = developmental grades

Page 7 of 22

Custom Design

g GE Plastics

Custom design Reactivity by controlling functionality

Processability by controlling molecular weight

Goal:

No inhibition to Free radical reaction / curing
Incorporate & build-in PPO ® in polymer network.

No phenolic end group & low molecular weight & reactive or non-reactive end groups

OH

O n

Inhibition No inhibition

O-X

O n

Salicylate functionalized PPO ® for non-reactive capping (PPO ® 855A)
Acrylic functionalized PPO ® for reactive capping (PPO ® MX5587 developmental grade)

Salicyla...