US 7,456,247 B2
Phenolic resin formed from a difunctional phenol and a divinyl ether
Ichiro Ogura, Ichihara (Japan); Nobuya Nakamura, Ichihara (Japan); and Tomoyuki Imada, Ichihara (Japan)
Assigned to Dainippon Ink and Chemicals, Inc., Tokyo (Japan)
Filed on Jun. 19, 2006, as Appl. No. 11/455,106.
Application 11/455106 is a division of application No. 10/682920, filed on Oct. 14, 2003, granted, now 7,087,702.
Claims priority of application No. P2002-300212 (JP), filed on Oct. 15, 2002.
Prior Publication US 2006/0235183 A1, Oct. 19, 2006
Int. Cl. C08G 67/00 (2006.01)
U.S. Cl. 528—205  [528/219] 2 Claims
 
1. A phenol resin represented by the following general formula 6:

OG Complex Work Unit Drawing
wherein R3 to R6 each represents a hydrogen atom, a methyl group, a chlorine atom, or a halogen atom, X each independently represents a C6-17 aliphatic hydrocarbon group having a cycloalkane skeleton, n is a natural number, and the average thereof is from 1.2 to 5.