公开(公告)号：EP0245365A4

公开(公告)日：1987-11-25

申请号：EP86906671

申请日：1986-10-24

申请人： MEAD CORP

发明人： POKORA ALEXANDER R ,  CYRUS WILLIAM L JR

IPC分类号： B41M5/132 ,  B41M5/155 ,  C08G61/00 ,  C08G61/02 ,  C08G61/10 ,  C08G65/38 ,  C08G65/44 ,  C12P7/22 ,  C12P7/62 ,  C12P13/00

CPC分类号： B41M5/155 ,  C08G61/10

摘要： In a process for the preparation of a phenolic resin, a phenol is reacted with a peroxidase or an oxidase enzyme and a peroxide in an organic solvent containing medium to generate phenolic radicals which react to form phenolic resins and, more particularly, formaldehyde-free resins of formula (I), where n is an integer greater than or equal to 2, the phenolic units of the resin are directly bonded to one another through positions ortho or para to the hydroxyl group, Y is present at a position meta or para to the hydroxy group and is selected from the group consisting of an alkyl group, a halogen atom, an aryl group, a phenylalkyl group, an allyl group, a carboxyl group of the formula -COOR, where R is a hydrogen atom, an alkyl group or a phenylalkyl group, an amino group of the formula -NR1R2 where R1 and R2 are the same or different and represent a hydrogen atom or an alkyl group, and Z is a hydrogen atom, an alkyl group, a halogen atom, an aryl group, a phenylalkyl group, or a -COOR group, or Z in conjunction with the adjacent meta position forms a condensed benzene ring; or a metal-modified, formaldehyde-free phenolic developer resin obtained by reacting said developer resin with a metal salt; the resins are useful as developers in forming colored images by reaction with substantially colorless electron-donating compounds.