Title:
LOW SOFTENING POINT PHENOL NOVOLAC RESIN, METHOD FOR PRODUCING SAME, AND EPOXY RESIN CURED PRODUCT USING SAME
Document Type and Number:
WIPO Patent Application WO/2007/026553
Kind Code:
A1
Abstract:
Disclosed is a low softening point phenol novolac resin characterized by having a constitutional unit represented by the general formulae (1) below and a melt viscosity at 150°C of 20-100 mPa·s. Also disclosed is a method for producing such a low softening point phenol novolac resin. In the formulae (1), R represents at least one divalent arylene group selected from a biphenylene group and a xylylene group represented by the following general formulae (2): and may further contain a constitutional unit represented by the following general formula (3): (wherein R4 represents a hydroxyl group or an alkyl group having 1-6 carbon atoms); m and n represent numbers satisfying m/n = 0.04-20; R1, R2 and R3 may be the same as or different from one another and respectively represent a hydroxyl group or an alkyl group having 1-6 carbon atoms; and p, q and r respectively represent an integer of 0-2.
Inventors:
TAKABAYASHI SEIICHIROU
MITSUMOTO KUMI
MITSUMOTO KUMI
Application Number:
PCT/JP2006/316247
Publication Date:
March 08, 2007
Filing Date:
August 18, 2006
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
TAKABAYASHI SEIICHIROU
MITSUMOTO KUMI
TAKABAYASHI SEIICHIROU
MITSUMOTO KUMI
International Classes:
C08G14/04; C08G8/08; C08G59/62
Foreign References:
| JPH08120039A | 1996-05-14 | |||
| JP2003119234A | 2003-04-23 | |||
| JP2001064340A | 2001-03-13 |
Attorney, Agent or Firm:
TSUKUNI, Hajime (22-12 Toranomon 1-chome, Minato-ku Tokyo 01, JP)
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