Hydrocarbyl-substituted phenols in resins for cellulosic...

Details Hydrocarbyl-substituted phenols in resins for cellulosic... Hydrocarbyl-substituted phenols in resins for cellulosic...

2006-04-11

2006-04-11

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S524000, C524S487000

Reexamination Certificate

active

07026378

ABSTRACT:
Waxy hydrocarbyl substituted phenols or phenates are reacted into phenol formaldehyde resins to impart a waxy water resistant nature to binders. A preferred use of the modified phenol formaldehyde resins is as a binder in engineered wood products such as strand board, particle board, medium density fiberboard, plywood and I-beams. Binding the waxy material into the resin may provide a better dispersion of the waxy moieties and prevent migration as has been seen by the simple addition of waxy materials.

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Search Report from corresponding PCT International Publication No. WO 02/081569 A1 published Oct. 17, 2002.

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