Low free formaldehyde methylolhydantoin compositions

Details Low free formaldehyde methylolhydantoin compositions Low free formaldehyde methylolhydantoin compositions

1994-02-14

1995-04-11

Lee, Mary C.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

5483081, 5483121, 5483171, 5483191, 252367, 252368, A01N 4352, C07D23512

Patent

active

054058627

ABSTRACT:
Compositions of dimethyloldimethylhydantoin, monomethyloldimethylhydantoin, and dimethylhydantoin having less than 0.1% by weight of free formaldehyde based upon 100% by weight of total composition; and wherein the weight ratio of dimethyloldimethylhydantoin to monomethyloldimethylhydantoin ranges from about 1:1.25 to about 3.5:1, are provided. These compositions may be prepared (1) by reacting dimethylhydantoin and a formaldehyde-containing source wherein the molar ratio of formaldehyde to dimethylhydantoin ranges from about 1.2:1 to about 1.55:1 or (2) by admixing (a) from about 80 to about 90% by weight of an aqueous solution of methyloldimethylhydantoin having greater than about 0.1% by weight of free formaldehyde with (b) about 20 to about 10% by weight of dimethylhydantoin based upon 100% weight of aqueous dimethyloldimethylhydantoin solution and dimethylhydantoin combined.

REFERENCES:
patent: 3987184 (1976-10-01), Foelsch
patent: 4908456 (1990-03-01), Farina et al.
patent: 5036095 (1991-06-01), Andermann

Affiliated with

Also associated with

Rating

Low free formaldehyde methylolhydantoin compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low free formaldehyde methylolhydantoin compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low free formaldehyde methylolhydantoin compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1538766