PHENOLIC RESIN FOAMED PLATE AND METHOD FOR PRODUCING SAME

Title:

PHENOLIC RESIN FOAMED PLATE AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2011/074611

Kind Code:

A1

Abstract:

Provided is a phenolic resin foamed plate having a thickness of 50 mm or more, wherein, when the phenolic resin foamed plate is sliced, from one principal plane thereof, into (n) pieces at 5 mm intervals in the thicknesswise direction along the principal plane, the obtained (n) pieces are named, starting from the principal plane side, (Q1) to (Qn), and the average densities of (Q1) to (Qn) are referred to respectively as (dq1) to (dqn), the ratio (dqmin/ dqave) of the minimum value (dqmin) among (dq2) to (dq(n-1)) to the average (dqave) of (dq2) to (dq(n-1)) satisfies 0.91≤(dqmin/dqave)≤0.98; and when (Di)values [Di=(dq(i-1)+dqi+dq(i+1))/3, wherein (i) is an integer of 2 to (n-1), provided that when (i) is 2 and (n-1), (D2) equals to (dq2) and (D(n-1)) equals to (dq(n-1)) respectively] are calculated, plotted according to the numerical value of (i) [with (i) on the horizontal axis and (Di) on the vertical axis] and connected together to give a density distribution curve, there is a straight line intersecting with said density distribution curve at 4 points and being parallel to the horizontal axis. Thus, a phenolic resin foamed plate, which shows practically sufficient compression strength and heat conductivity even in the case of increasing the product thickness, can be obtained.

Inventors:

MIHORI HISASHI (JP)
WATANABE HIROFUMI (JP)
SAITO YUKI (JP)

Application Number:

PCT/JP2010/072572

Publication Date:

June 23, 2011

Filing Date:

December 15, 2010

Export Citation:

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Assignee:

ASAHI KASEI CONSTR MAT CO LTD (JP)
MIHORI HISASHI (JP)
WATANABE HIROFUMI (JP)
SAITO YUKI (JP)

International Classes:

C08J9/12

Domestic Patent References:

WO2009066621A1

2009-05-28

Foreign References:

JP2008024868A	2008-02-07
JPH11216830A	1999-08-10
JP2007070506A	2007-03-22
JPH04141406A	1992-05-14
JP3243571B2	2002-01-07
JPS595038A	1984-01-11
JPH0417143B2	1992-03-25
JPH10225993A	1998-08-25

Other References: