Styrene Butadiene Rubber

PRODUCT IDENTIFICATION

CAS NO.

9003-55-8

FORMULA

[CHCH2CH2CH=CHCH2C6H5]n

H.S. CODE

40021913

CLASSIFICATION            

Styrene Butadiene Rubber (SBR)

PHYSICAL AND CHEMICAL PROPERTIES

Decomposition Temperature

200°C

Durometer Shore(Hardness)

575

Melting point

120 °C

Specific Gravity (D20/20)

1.04

Elongation

150%

Percent Volatiles (by volume)

1.5 max

Tensile Strength (Psi)

400

Vapour Pressure (mmHg/70F)

1 max

GENERAL DESCRIPTION & APPLICATIONS

SBR is polymerized Butadiene Styrene copolymers, specially produced according to the requirements of the Food Chemicals Codex and comply with FDA Regulation 21-CFR-172.615 compound for use in chewing Gum, handling consumable food products. It is an SBR so it gives good abrasion resistance considering there is no carbon black. It can be used for non-oily products such as sugar, dehydrated potatoes, and flour, just to name a few. It is widely used for Chewing Gum Base, Bubble Gum Base.

SALES SPECIFICATION

Appearance

PALE YELLOW ELASTIC SOLID

Bound Styrene

22.0-26.0%

Heavy Metal, mg/Kg(as Pb)

10.0 max

Lead, mg/Kg (as Pb)

1.0 max

Arsenic (as As)

3.0 max

Quinone, mg/Kg

20.0 max

Free Styrene, mg/Kg

20.0 max

Hexane, mg/Kg

100.0 max

TRANSPORTATION

PACKING

Packing in 15kg paper carton (41*41*13.5), 640cartons/9.6Mton per 20ft container with pallet. 1040 cartons/15.6Mton per 20ft container without pallet