Production of thermosetting phenol-formaldehyde resins

Details Production of thermosetting phenol-formaldehyde resins Production of thermosetting phenol-formaldehyde resins

1978-12-22

1980-11-25

Schain, Howard E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260 172, 260 293, 428529, 528144, C08G 810

Patent

active

042359899

ABSTRACT:
Thermosetting water-immiscible phenol-formaldehyde resins in which a large proportion of the linkages between the benzene rings are benzyl ether linkages located ortho to the phenolic hydroxyl groups are produced by reaction of at least one mole of formaldehyde with 1 mole of phenol in an aqueous reaction medium in the presence of a metal carboxylate catalyst, such as, zinc acetate. Methods of control of the exothermic addition of formaldehyde to phenol are described.

REFERENCES:
patent: 3006893 (1961-10-01), West et al.
patent: 3422068 (1969-01-01), Kreibich et al.
patent: 3485797 (1969-12-01), Robins
patent: 3615975 (1971-10-01), Gillern et al.
patent: 3773721 (1973-11-01), Tiedeman
patent: 4003873 (1977-01-01), Smith
patent: 4017437 (1977-04-01), Vasishth et al.
patent: 4022942 (1977-05-01), Anderson et al.

Affiliated with

Also associated with

Rating

Production of thermosetting phenol-formaldehyde resins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of thermosetting phenol-formaldehyde resins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of thermosetting phenol-formaldehyde resins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1130445