Abstract:
This invention relates to thermoplastic graft copolymers of a polymer backbone having aromatic hydroxy groups and an aromatic polycarbonate grafted onto said backbone via the aromatic hydroxy groups, and more especially to blends of said graft copolymer with aromatic polycarbonates and/or polymers of olefinically unsaturated monomers.
Abstract:
The present invention relates to a 2-(2-or 4-hydroxyphenyl)-2(3- or 4-isopropenyl-phenyl)-propanes of the formula
IN WHICH R1 and R2 are identical or different and denote hydrogen, halogen, hydroxyl, alkyl, cycloalkyl or alkoxy with up to 6 carbon atoms, and a process for their manufacture and their use for the manufacture of polymers.
Abstract:
AROMATIC POLYCARBONATES HAVING ADDED A NEUTRAL ESTER OF PHOSPHOROUS ACID WITH AT LEAST ONE OXETANE GROUP, THE LATTER FUNCTIONS AS A STABILIZER FOR THE POLYCARBONATE TO LESSEN DISCOLORATION AFTER EXPOSURE TO HEAT. THUS, THE POLYCARBONATES OF THE INVENTION ARE PARTICULARLY USEFUL IN THE LIGHTING FIELD.
Abstract:
PIGMENTED AROMATIC POLYCARBONATES ARE PROVIDED WHICH CONTAIN FROM ABOUT 5 TO ABOUT 100 PERCENT BY WEIGHT RELATIVE TO THE WEIGHT OF THE PIGMENT OF COPOLYMERS CONTAINING EPOXIDE GROUPS OR OF A VINYL POLYMER FREE OF EPOXIDE GROUPS.