C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1702, 117/43
C08L 61/10 (2006.01) C08J 3/12 (2006.01) C08K 5/09 (2006.01) D04H 1/60 (2006.01)
Patent
CA 1212194
ABSTRACT OF THE DISCLOSURE This invention relates to a powdered phenolic resin composition suitable for the production of dry processed resin- bonded felt. The phenolic resin composition imparts a good release of the felt from the heated platen or belt and has a rapid cure rate. The powdered phenolic composition is composed of a novolac type phenolic resin, or a mixture of novolac and resole type with an aromatic carboxylic acid as an additive. The resin mixture has a bulk density of 0.29-0.36gm/cm3, and contains 0.3-5 parts by weight of the aromatic carboxylic acid to 100 parts by weight of phenolic resin. Said aromatic carboxylic acid has the formula R-Ar-COOH wherein: R is selected from hydrogen, hydroxy or alkoxy groups, and Ar is selected from phenyl, phenylalkenyl or phenylalkyl groups.
412792
Inoue Naomitsu
Saeki Yukio
Marcoux & Sher Swabey Mitchell Houle
Sumitomo Durez Company Ltd.
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