Phenolic resin, process for production thereof, epoxy resin,...

Details Phenolic resin, process for production thereof, epoxy resin,... Phenolic resin, process for production thereof, epoxy resin,...

2011-06-28

2011-06-28

Eashoo, Mark (Department: 1767)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C528S098000

Reexamination Certificate

active

07968672

ABSTRACT:
A phenol aralkyl type phenolic resin represented by the general formula (1), wherein the total content of the compounds represented by formulae (2) to (4) is 58 to 92% as determined by GPC and the contents of the compounds represented by formulae (2) to (4) as determined by HPLC satisfy the following relationship: 0.60≦(2a+b)/(2a+2b+2c)≦0.90 wherein a is the content of the compound of formula (2); b is the content of the compound of formula (3); and c is the content of the compound of formula (4).

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