Ashland Licensing and Intellectual Property LLC

Dejan D Andjelkovic

Dennis H Fisher

Timothy A Tufts

Roman Loza

Michael J Sumner

Husam A A Rasoul

Darcy A Culkin

Dennis Fisher

The invention pertains to low profile additives ('LPA') comprising branched polymers having a weight average molecular weight (Mw) of at least about 20,000 grams/mole and a number average molecular weight (Mn) of at least about 3,000 grams/mole and methods for making the LPAs. The invention further concerns compositions comprising LPAs synthesized from one or more difunctional monomers and one or more branching agents. Also, disclosed are thermosettable resinous compositions and molded articles comprising the LPAs.

Branched low profile additives and methods of production

Formulations comprising an isosorbide-modified unsaturated polyester comprising maleic acid, fumaric acid, itaconic acid or maleic anhydride and isosorbide and one or more low profile additives. The formulations exhibit better shrink control in molding compound formulations with standard low profile additives than their non-isosorbide-modified analogues. These isosorbide-modified unsaturated polyester resins may be applied in molding compounds like sheet molding compounds or bulk molding compounds and may be components of fiber reinforced composites or other composite materials.

Formulations comprising isosorbide-modified unsaturated polyester resins and low profile additives which produce low shrinkage matrices

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Dublin, OH, United States of America

Dejan D Andjelkovic