Specialty Chemicals

BR-1043MB is a biobased polyether urethane methacrylate oligomer with a majority percentage (75%) of biobased content. This oligomer provides excellent low-temperature flexibility, elasticity, and excellent dynamic properties and rebound with a lower viscosity versus similar polyether chemistries. The oligomer exhibits a higher degree of heat resistance vs other polyether oligomers. The high biobased backbone and methacrylate functionality make this an excellent candidate for consumer applications with low irritancy requirements.

EASTMAN™ CELLULOSE ACETATE BUTYRATE (CAB-531-1) is a cellulose ester with a higher butyryl level than Eastman CAB-381 type esters. Tough films with good resistance to marring and weathering are possible through combinations of cellulose acetate butyrate with thermoplastic acrylic resins. Eastman CAB-531-1 and CAB-381 esters are similar in hydroxyl content and solubility characteristics, both being soluble in a wide range of solvents. Eastman CAB-531-1 is a more flexible resin that requires lower plasticizer modification than the Eastman CAB-381 esters. When CAB-531-1 is dissolved in appropriate solvents, a clear, colorless solution is produced. Eastman CAB-531-1 is based on cellulose, one of the most abundant natural renewable resources. The calculated approximate bio-content value of 38% for Eastman CAB-531-1 was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit. Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.

BR-1042MB is a bio-based polyether urethane methacrylate oligomer with a substantial amount of bio-based content and is tin-free. This is a medium hardness version of our biobased products. This oligomer has a good balance of toughness and flexibility. The bio-based backbone, methacrylate functionality and tin-free nature make this an excellent choice for consumer applications with low irritancy.