ROOT-RESISTANT BASE LAYER - Johns Manville International,Inc.

Title:

ROOT-RESISTANT BASE LAYER

Document Type and Number:

Japanese Patent JP3769044

Kind Code:

B2

Abstract:

PURPOSE: To provide a root-resistant base layer capable of being used as a starting material for producing bituminized sealing felt and capable of being used in order to discharge static charge.
CONSTITUTION: In a multilayered base layer containing at least one fiber layer and one copper layer both of which are together joined by needling, puncture holes produced in the copper layer by needling have a diameter of not more than 1 mm.

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Inventors:

Franz Kaurich

Application Number:

JP32499394A

Publication Date:

April 19, 2006

Filing Date:

December 27, 1994

Export Citation:

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Assignee:

Johns Manville International,Inc.

International Classes:

B32B5/02; B32B3/24; B32B15/14; B32B5/06; B32B7/08; B32B15/20; D06N5/00; E04D5/10; E04D11/00; (IPC1-7): B32B15/14; B32B5/02; B32B5/06

Domestic Patent References:

JP2045143A
JP63121530U

Attorney, Agent or Firm:

Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Shinya Hosokawa

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