CORE-SHELL POLYMERS HAVING HYDROPHILIC SHELLS FOR IMPROVED SHELL COVERAGE AND ANTI-BLOCKING PROPERTIES

摘要

THE PRESENT INVENTION RELATES TO CORE-SHELL POLYMERS HAVING A HYDROPHILIC COPOLYMER SHELL (2), AND A HIGH LEVEL OF CORE MATERIAL OF FROM 75 TO 95 WEIGHT PERCENT. THE HYDROPHILIC SHELL (2) PROVIDES BETTER COVERAGE OF THE CORE RESULTING IN BETTER POWDER PROPERTIES SUCH AS ANTI-BLOCKING. THE HYDROPHILIC SHELL (2) ALSO ALLOWS FOR A THINNER SHELL AND A LARGER ELASTOMERIC CORE. CORE-SHELL POLYMERS OF THE INVENTION ARE ESPECIALLY USEFUL AS IMPACT MODIFIERS FOR PLASTIC MATERIALS.