Chlorinated Rubber

I. Description of the product:

The CNR is one of the rubber derived products, which is modified from the natural rubber through chlorination. Itfinds wide application in the production of coatings, inks, adhesives, etc. The company has a working capacity of 5000 tons of the CNR with advanced technology and fine equipments. The quality of the product is stable and reliable, and hence trustworthy and well received by the customers.

II. Product Name:

Commercial name: Chlorinated Rubber(CR/CNR) 
Chemical molecular formula: (C10H11CI7)n
CAS No.: 9006-03-5

III. Process:

CNR products production process: Chlorinated rubber products are produced by dissolving natural rubber in non-ODS organic solvents and then through a series of technica I processes including chlorination, neutralization, desolvation analysis, centrifugation, washing, and drying.

IV. Functions and applications of chlorinated rubber:

It is applied in coatings to remarkably improve their properties such as weather-resistance and water resistance, insulation, inflammability, anti-acidity, anti-alkali, adhesion as well as antiimpact strength. Specifically it is widely applied to surface protection of materials in extreme conditions, such as in shipping, offshore platforms, bridges, docks, containers, motor vehicle chassis, road signs, chemical equipment, etc.

Additionally, high viscosity chlorinated rubber is applied to high-strength adhesives production, or added into other rubber products to improve its quality, while the low-viscosity product is applied to high-grade ink manufacturing.

V. Quality indexes:

Items Indexes
Appearance White or pale-yellow loose and soft powders
Chlorine content (Cl) 64%
Ash content 0.3%
Moisture 0.5%
True Density 1.5g/ml
Bulk density 0.08g/ml
Chroma 6-11
Thermal stability Rather stable under ultraviolet light
Heat stability Stable under 130C
Viscosity type R5,R10,R20,R30,R40,R50,R60-R300

VI. Viscosity of the Types

Type R5 R10 R20 R40 R90 R125 R300
Viscosity(mPa.S) 4-7 8-15 16-24 30-50 75-120 120-180 200-300

VII. Application range

Type Suitable trades
CR5 Printing ink
CR10 Printing ink, coatings
CR20 Coatings, adhesives
CR30 Coatings, adhesives
CR40 – CR300 Adhesives

VIII. Properties Difference

Items Comparison on properties and performance
Viscosity/mPa.s 5……….300
Molecule Weight small……….large
Film former content in paint high……….low
Miscibility with resin using in paint good……….bad
Dispersity on pigment good……….bad
Dissolution rate fast……….slow
Stability paint liquid good……….bad
Solvent emission rate of paint liquid fast……….slow
Age resistance bad……….good
Electrical Performance low……….high
Mechanical Properties low……….high
adhesive property low……….high
Construction performance bad……….good
Weatherability low……….high

IX. Packing, storage and transportation

Packed in Plastic bags lined of PP woven bags, 5-20kg each; Be on guard against moisture; Handle with care; Store in a cool, dry and well ventilated place. Non-dangerous good with stable chemical properties.

Company Info

Henan Wising Chem Co., Ltd