Acetone-formaldehyde-resorcinol resin compositions and adhesives

Details Acetone-formaldehyde-resorcinol resin compositions and adhesives Acetone-formaldehyde-resorcinol resin compositions and adhesives

1975-03-17

1977-07-05

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260838, C08L 6100

Patent

active

040340120

ABSTRACT:
Disclosed are liquid, hydrophilic, 2-stage resin compositions produced by reaction of (1) an acetone-formaldehyde resin, (2) free formaldehyde, and (3) resorcinol in an aqueous solution at elevated temperatures at least until substantially all the free formaldehyde is consumed. The molar quantities of chemically combined acetone, A, and formaldehyde, F.sub.c, in the acetone-formaldehyde resin and the molar quantities of free formaldehyde, F.sub.f, and resorcinol, R, satisfy the equations F.sub.c /A = 1.5 to 3.0, F.sub.f /R = 0.2 to 1.2 and R/A = 3.0 to 5.0. Also disclosed are adhesives prepared by combining such resin compositions with a curing agent such as formaldehyde. These adhesives cure rapidly to an insoluble infusible state in the absence of applied heat.

REFERENCES:
patent: 2398331 (1946-04-01), Rust et al.
patent: 2538883 (1951-01-01), Schrimpe
patent: 2538884 (1951-01-01), Schrimpe

Affiliated with

Also associated with

Rating

Acetone-formaldehyde-resorcinol resin compositions and adhesives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acetone-formaldehyde-resorcinol resin compositions and adhesives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acetone-formaldehyde-resorcinol resin compositions and adhesives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-577655