Tradeasia - Leading Chemical Supplier 🔍 🌐
CAREER

>

>

Disproportionated Rosin

Disproportionated Rosin in Tradeasia

IUPAC Name

-

Cas Number

1446-61-3

HS Code

38069090

Formula

-

Basic Info

Appearance

Light Yellow to White, Clear Liquid

Common Names

-

Packaging

80 @ 220 kg Iron Drums 17.6 MT / 20'FCL

Brief Overview:

Disproportionated rosin (DPR) is a compound consisting of dehydrogenated resin acids (dehydro-abietic acid) and hydrogenated resin acids (dihydro-abietic acid). It is produced from gum rosin by heating or acid treatment. DPR is commonly used in the form of a soap as an emulsifier in various products such as styrene-butadiene rubber, chloroprene rubber or acrylonitrile-butadiene-styrene rubber.

 

Manufacturing Process:

Disproportionated rosin is obtained by heating rosin mixtures at temperatures of 180-350 C for a sufficient time to reduce the abietic acid content to below 15%. The disproportionation process displaces the hydrogen in the abietic acid of the rosin to convert them into isomeric acids, particularly dehydroabietic acid, which lack nonbenzenoid double bond conjugation and are therefore more stable to oxidation than abietic acid. 

Rubber Industry:

Used as an emulsifier, rubber products have greater cohesion and heat endurance. Compared to ordinary styrene-butadiene rubber, the rubber with DPR content has  greater abrasion and laceration endurance.

 

Other industry:

DPR has other functions, such as being an important component of potassium soaps which serve as emulsifiers to enhance the quality of synthetic rubbers. It is also a raw material for making adhesives, water-based PSA, pigment and chewing gum.

Related Products

+