Hypro® 1300X43LC VTBNX

Hypro® 1300X43LC VTBNX

Hypro 1300X43LC is a low-molecular-weight, methacrylate-functional liquid rubber. It is a 100%-solids reactive polymer used primarily as an additive in acrylic adhesives, sealants and coatings and in vinyl esters.

The butadiene-acrylonitrile copolymer backbone provides improved adhesion, toughness, flexibility, low-temperature properties, and impact resistance. As a component in free-radical cured systems, the VTBNX is incorporated via the vinyl-methacrylate functionality.

Hypro 1300X43LC VTBNX has a random co-polymer backbone with 78.5% butadiene and 21.5% acrylonitrile and multi-functionality. The butadiene provides rubber properties and extends the flexibility and adhesion to low temperatures. It also contributes excellent resistance to moisture, acids and bases. The acrylonitrile provides compatibility with polar additives and improves adhesion to oily metal and to the fiber-reinforcements in polymer composites.

The multifunctionality enhances the cross-linking in cured adhesives, sealants and coatings.

Typical Properties Values
% Acrylonitrile 21.5
Viscosity, cps (reflects mid-point) 400,000 @27°C
Polymer Functionity 2.4
Molecular Weight (g/mol) 3700
Color, Max 5 (Gardner)
Acid Number 4.0
Glass Transition, Tg, °C -45
Specific Gravity @25°C 0.981
Solubility, (cal/cm3)1/2 9.09
Solids, % 100

To obtain a Safety Data Sheet (SDS) please contact Global_Product_EHS_AdMat@huntsman.com

Application Group Application Description
Adhesives Industrial Structural Adhesives Used to reduce brittleness especially at low temperatures, increase impact strength, and improve resilience. Synergistic with other toughening agents.
Coatings Industrial 2K Acrylic Top Coats Improves chemical resistance, impact resistance, flexibility and reduces brittleness.
Composites SMC Unsaturated Polyester Used to improve green strength reducing micro-cracking. Increases inter-laminar bonding.