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BX-946 is the copolymerisation product of an acrylic monomer and an allyl monomer, thus creating a copolymer containing active pendant allyl groups. The presence of this allylic functionality allows for this copolymer to remain reactive when dissolved in various monomers or solvents. Thus BX-946 can be useful in processes where crosslinking, grafting and compatibilisation are desirable.

The use of BX-946 is of particular interest in thermosetting casting compositions where shrinkage is a problem. It is known to be effective as an anti-shrink agent in the casting of plastic ophthalmic lenses using Allyl diglycolcarbonate (ADC). Similarly, glazing compounds may benefit from the use of BX-946, as well as other unsaturated thermoplastic and thermosetting polymer applications.

Key Features and Advantages

- Produces completely clear and colourless polymers.

- Minimises dimensional changes and formation of internal stresses in cured resin.

- When used in combination with ADC, monomer shrinkage can be substantially   reduced while maintaining the optical clarity and integrity of the cured resin.

- Reduces cracking and / or separation from the mould wall, yielding improved                    surface characteristics of the cast article.

Typical Properties

BX-946 is supplied as a liquid material with a copolymer concentration normally in the range of 25 to 50%. Physical properties are most often a function of the monomer or solvent in which it is dissolved.

BX-946 is known to be soluble in ketones, aromatics, methylene chloride, allyl diglycolcarbonate, acrylic monomers and styrene.

* NOTE: Supply as a dry powder is also available on request.

mailto:sghibartz@bimax.com