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STYRENE MALEIC ANHYDRIDE COPOLYMER

cm308

Typical Physical and Chemical Properties

Appearance

Acid #, mg
KOH/gm

Color, Gardner scale

Tg, Degree Centigrade

Molecular
weight, Mn

Molecular
weight, Mw

Kinematic
Viscosity, cts

Nonvolatiles,
% min.

Off White

275

1–2

122

4100

9200

.77–.81

99

Solubility, gms/100ml solvent @ 25 degrees Centigrade.

n-Hexane

Toluene

Ethanol

Acetone

MEK

THF

Ethyl Acetate

<1

<1

<1

>50

>50

>50

>50

General Description
CM 308 is a low molecular weight copolymer made from styrene and maleic anhydride. The weight ratio of the product is approximately 3:1. Due to the maleic anhydride content of CM 308, it forms medium solids solutions in aqueous base.

Properties

  • High gloss
  • High heat resistance
  • Good surfactant
  • Moderate solution solids

Applications and Utilities

  • Emulsion polymerization
  • Paper sizing
  • Overprint varnishes
  • Inks
  • Intermediates
  • Coatings


The information in this bulletin is thought to be accurate, but all recommendations and suggestions are made without warranty since the conditions of the use of the resins are outside of T -Global Chemicals control. The properties listed are illustrative only and are not product specifications. T-Resins Inc. and T -Global Chemicals LLC disclaims any liability in connection with the use of the information, and does not warrant against infringement by reason of the use of its products in combination with other material or in any process.

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