Novel heat-hardenable binders phenol-formaldehyde+HMT+acid

Details Novel heat-hardenable binders phenol-formaldehyde+HMT+acid Novel heat-hardenable binders phenol-formaldehyde+HMT+acid

1988-10-26

1990-07-17

Foelak, Morton

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528139, 528143, 528144, 528146, 525480, 525481, 525500, 525501, 525502, 525503, 525504, 525505, C08G 810, C08G 1404, C08F 622, C08K 542

Patent

active

049422170

ABSTRACT:
A heat-hardenable binder comprising (a) a phenolic resin of a phenolic compound and formaldehyde in a molar ratio of 1:1 to 1:2 and (b) an effective amount of a hardener mixture of hexamethylenetetramine and an acidic latent hardening agent with reduced emission problems and curing rapidly.

REFERENCES:
patent: 4433119 (1984-02-01), Brode et al.
patent: 4578448 (1986-03-01), Brode et al.

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