Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From aldehyde or derivative thereof as reactant
Patent
1998-08-28
2000-02-29
Truong, Duc
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From aldehyde or derivative thereof as reactant
528129, 528163, 528230, 528252, 521 495, C08G 1230
Patent
active
060310642
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to condensation products obtainable by condensation of general formula I ##STR4## where R is C.sub.1 -C.sub.6 -alkyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-, p-hydroxyphenyl- or o-hydroxyphenyl-monosubstituted, -disubstituted or -trisubstituted phenyl or phenyl-substituted C.sub.1 -C.sub.4 -alkyl, or mixtures thereof, and general formula II ##STR5## where R.sup.x is C.sub.1 -C.sub.6 -alkyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-monosubstituted , -disubstituted or -trisubstituted phenyl or phenyl-substituted C.sub.1 -C.sub.4 -alkyl and Y' is --NHZ, where Z is selected from the group consisting of hydroxy-C.sub.2 -.sub.10 -alkyl, hydroxy-C.sub.2 -.sub.4 -alkyl-(oxa-C.sub.2 -.sub.4 -alkyl).sub.m, where m is from 1 to 5, --NHCH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 OH and amino-C.sub.2 -.sub.12 -alkyl, or mixtures thereof, and melamine of the general formula III ##STR6## where X, X' and X" are each selected from the group consisting of --NH.sub.2, --NHR' and --NR'R" subject to the proviso that X, X' and X" are not all either --NH.sub.2 or --NR'R", where R' and R" are each selected from the group consisting of hydroxy-C.sub.2 -C.sub.10 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl- (oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures thereof, unsubstituted or are substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxyl, C.sub.1 -C.sub.4 -alkanes substituted by two or three phenol groups, di(hydroxyphenyl)sulfones or mixtures of these phenols, with component (A) to formaldehyde within the range from 1:1.15 to 1:4.5.
This invention further relates to a process for preparing these condensation products, to their use for producing shaped articles, especially fibers, and to shaped articles, especially fibers, obtainable from the use.
Condensation resins based on acetoguanamine and formaldehyde are known from U.S. Pat. No. 3,469,219, for example. Furthermore, U.S. Pat. No. 2,809,951 discloses condensation resins based on benzoguanamine and formaldehyde.
Furthermore, condensation resins are known which, in addition to the aforementioned starting materials, include melamine (Kobunshi Kagaku 22 (238) 113-117, 1965; CA 63 (1965) 7168c), phenol or urea (NL-A 6,414,076) for modification. These condensation resins have heretofore been used in the areas of laminate production, the gluing of cellulose, the production of pressing compounds and the production of coating resins. Known condensation resins based on acetoguanamine or benzoguanamine have the disadvantage of an insufficient viscosity and an insufficient solids content for fibermaking. The insufficient solids content means that a lot of water has to be removed in spinning, which leads to poor fiber formation and coalesced fibers.
EP-A-523 485 describes condensation products obtainable by condensation of a mixture containing as essential components ##STR7## where Q, Q' and Q" are each selected from the group consisting of --NH.sub.2, --NHR* and --NR*R** subject to the proviso that Q, Q' and Q" are not all --NH.sub.2, where R* and R** are each selected from the group consisting of hydroxy-C.sub.2 -C.sub.4 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl- (oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I', and unsubstituted or substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxyl, C.sub.1 -C.sub.4 -alkanes substituted by two or three phenol groups, di(hydroxyphenyl)sulfones or mixtures of these phenols, with melamines to formaldehyde within the range from 1:1.15 to 1:4.5 and their use for producing fibers and foams and shaped articles obtainable from these products.
Fibers produced by the process of EP-A 523 485 have the disadvantage that their tenacity and breaking extension are insufficient for some applications.
It is an object of the present invention to provide acetoguanamine- and benzoguanamine-based fibers having improved tenacity and
REFERENCES:
patent: 3288902 (1966-11-01), Schuller et al.
patent: 3469219 (1969-09-01), Berg et al.
patent: 4424261 (1984-01-01), Keeling et al.
patent: 5530031 (1996-06-01), Guenther et al.
Chem. Abstr. 63 (1965), 7168.
Guenther Erhard
Reuther Wolfgang
BASF - Aktiengesellschaft
Truong Duc
LandOfFree
Condensation products based on triazines and formaldehyde does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Condensation products based on triazines and formaldehyde, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Condensation products based on triazines and formaldehyde will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-683965